Showing 78,021 complaints for HYUNDAI
Incident date: Aug 10, 2026
I am submitting a safety complaint regarding a recurring, unresolved electrical defect in my 2020 Hyundai Sonata SEL. The vehicle fails to recognize when the ignition is switched off, leaving core vehicle systems active and causing severe parasitic battery drain that leaves the car immobilized. Description of the Problem: False "On" Status: After parking, turning off the engine, and exitin
... g the vehicle, the car continues to register as though the ignition is still active/on (accessories, cluster, or vehicle network remain awake). Severe Parasitic Draw: Because the vehicle fails to shut down its electrical circuits, the 12-volt battery repeatedly discharges overnight or while parked for short durations. Battery Replacement Did Not Resolve Issue: The 12-volt battery was replaced with a brand-new unit to eliminate typical wear, yet the drain and false "on" behavior persisted immediately. Frequency: The vehicle frequently fails to start, requiring constant jump-starts or roadside assistance to operate. Safety Hazard: This defect creates a direct safety risk by repeatedly stranding the driver without warning in public locations, traffic stops, or remote areas. In addition, an electrical system that fails to enter a sleep state creates a potential hazard for component overheating, failure of electronic security and locking systems, or total electrical failure while attempting to restart or operate auxiliary safety equipment. Other Hyundai owners have reported identical issues where the body control modules or ignition logic fail to power down. Corrective Action Requested: I request that the NHTSA investigate this electrical shutdown defect across the 2020 Hyundai Sonata model year to identify whether a faulty Body Control Module (BCM), smart key receiver, or ignition switch relay requires a safety recall and software or hardware remediation. Battery replaced on 09/04/2026 Car inspected/diagnosed by Hyundai Dealership on 09/03/2026Read more
Incident date: Aug 2, 2026
The contact owns a 2013 Hyundai Sonata. The contact stated that while driving 40 MPH, the vehicle suddenly lost power. The contact was able to coast to the side of the road and turned off the vehicle. The vehicle was unable to restart on the side of the road. The vehicle was towed to a certified mechanic who diagnosed that the engine had seized and needed to be replaced. The vehicle was then towed
... to the dealer, who confirmed the diagnosis. The dealer asked the contact to provide receipts of past oil changes. After submitting the information to the manufacturer, the request to cover the repair was denied. The vehicle remained with the dealer for a month. The manufacturer was informed of the failure by the dealer. The failure mileage was 52,973.Read more
Incident date: Sep 3, 2026
I had just started accelerating from a stop light at 715 am on a clear morning. I was not close to any other cars and there was no traffic entering. Without warning my collision warning came on and brought the car to a sudden stop. This is damgerous and I am lucky I was not rear ended
Incident date: Sep 3, 2026
I had just started accelerating from a stop light at 715 am on a clear morning. I was not close to any other cars and there was no traffic entering. Without warning my collision warning came on and brought the car to a sudden stop. This is damgerous and I am lucky I was not rear ended
Incident date: Apr 16, 2026
The contact owns a 2025 Hyundai Tucson. The vehicle was repaired under NHTSA Campaign Number: 26V400000 (ELECTRICAL SYSTEM); however, the contact stated that the failure occurred. The contact stated that the instrument panel flickered and went blank and repeatedly turned on and off. No warning lights were illuminated. The local dealer was contacted; however, the vehicle was not diagnosed. The cont
... act was informed that the VIN was not under recall. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 5,987.Read more
Incident date: Dec 31, 2025
The contact owns a 2010 Hyundai Veracruz. The contact stated that the vehicle was repaired under NHTSA Campaign Number: 20V705000 (Engine and Engine Cooling); however, the repair failed to prevent a failure. The contact stated that upon further inspection, there was an engine oil leak that was leaking onto the alternator. The local dealer was contacted. The failure mileage was approximately 205,67
... 0.Read more
Incident date: Apr 22, 2025
The contact owns a 2024 Hyundai Tucson. The contact stated that while operating the vehicle, the horn pad was pressed; however, the sound coming from the horn was extremely low. The vehicle was not yet repaired. The local dealer was notified of the failure, and an appointment was scheduled for the repair. The contact stated that the horn had been replaced twice for the same failure. The manufactur
... er was notified of the failure. The failure mileage was 12,907.Read more
Incident date: Aug 28, 2026
I took my Tucson to my local Hyundai dealership on Friday, August 28, 2026. It was there for a standard oil change and tire rotation. When I scheduled the appointment online the system also said there was a recall. I always stay on top of that so I let them take care of that as well. The recall didn’t seem like anything major, it was something to do with emissions. Ok, when I left the deale
... rship that day the engine was warm so there was no noticeable difference. I didn’t use my vehicle at all for the next few days. When I got into it Monday morning for work I noticed immediately after starting the car and taking off the engine was hesitating and bucking. This lasted a few minutes. The problem seems to improve once the engine is warm but others are reporting online that they’re having issues with engines stalling as well. There’s something wrong with the software update that’s being used and no one seems to have a fix. I reached out to Hyundai with my concern and they recommended I take it back to the dealership to be diagnosed and see if my warranty would cover any repairs. My vehicle was free of problems before that update and now it’s falling back on me to pay for a potential problem they caused. There has been no accidents for me personally with this but it’s most definitely a safety hazard.Read more
Incident date: Aug 28, 2026
I took my Tucson to my local Hyundai dealership on Friday, August 28, 2026. It was there for a standard oil change and tire rotation. When I scheduled the appointment online the system also said there was a recall. I always stay on top of that so I let them take care of that as well. The recall didn’t seem like anything major, it was something to do with emissions. Ok, when I left the deale
... rship that day the engine was warm so there was no noticeable difference. I didn’t use my vehicle at all for the next few days. When I got into it Monday morning for work I noticed immediately after starting the car and taking off the engine was hesitating and bucking. This lasted a few minutes. The problem seems to improve once the engine is warm but others are reporting online that they’re having issues with engines stalling as well. There’s something wrong with the software update that’s being used and no one seems to have a fix. I reached out to Hyundai with my concern and they recommended I take it back to the dealership to be diagnosed and see if my warranty would cover any repairs. My vehicle was free of problems before that update and now it’s falling back on me to pay for a potential problem they caused. There has been no accidents for me personally with this but it’s most definitely a safety hazard.Read more
Incident date: Sep 2, 2026
It suddenly brakes with warning forward collection. Thought this car recall update the s/w for forward collision braking.
Incident date: Jul 16, 2026
Hyundai Motor America & Wallace Hyundai of StuartVEHICLE: 2020 Hyundai Santa Fe (2.4L Theta II GDI Engine)VIN: 5NMS23AD5LH181669INCIDENT MILEAGE: 181,000 MiHYUNDAI CASE NUMBER: 42981944SECTION 1: CATASTROPHIC INTERSTATE SAFETY INCIDENTOn July 16, 2026, while navigating heavy, high-speed traffic on Interstate 95 (I-95) at approximately 80 to 85 MPH, my vehicle suffered an un-commanded, catastrophic
... mechanical engine seizure. The vehicle instantly dropped from highway speeds down to a 21 MPH "limp mode," creating an immediate multi-car pile-up hazard on a major interstate. Physical inspection immediately after the failure proved that the engine oil level was completely full. The internal components catastrophically failed due to a documented, systemic factory defect involving premature rod bearing failure and oil starvation mechanisms, entirely unrelated to consumer maintenance.SECTION 2: PRIOR SAFETY COMPLAINTS & DOCUMENTED TIMELINEHyundai Motor America has intentionally forced me to operate a known, life-threatening safety hazard for 17 months, during which I drove an additional 31,000 miles under extreme duress. I filed formal oil consumption complaints with Hyundai Corporate every three to four months. I was forced to manually replenish the engine oil every 1,000 miles due to excessive oil loss.Specific safety reports detailing hazardous engine behavior were formally logged with Hyundai on November 25, 2025, and again in April 2026. Rather than remediating the vehicle, Hyundai corporate claims adjusters and dealership supervisors ignored these warning tracks, effectively throwing a consumer out into active traffic in an unsafe, defective vehicle.SECTION 3: AUTOMATIC SHUTDOWN TRAUMA & ACCIDENT RISKThe manufacturing defects caused an intermittent, un-commanded automatic The manufacturing defects caused an intermittent, un-commanded automatic engine shutdown condition. On 5 to 10 separate occasions while stationary at active traffic lights, the vehicle stalled10timesRead more
Incident date: Jul 16, 2026
Hyundai Motor America & Wallace Hyundai of StuartVEHICLE: 2020 Hyundai Santa Fe (2.4L Theta II GDI Engine)VIN: 5NMS23AD5LH181669INCIDENT MILEAGE: 181,000 MiHYUNDAI CASE NUMBER: 42981944SECTION 1: CATASTROPHIC INTERSTATE SAFETY INCIDENTOn July 16, 2026, while navigating heavy, high-speed traffic on Interstate 95 (I-95) at approximately 80 to 85 MPH, my vehicle suffered an un-commanded, catastrophic
... mechanical engine seizure. The vehicle instantly dropped from highway speeds down to a 21 MPH "limp mode," creating an immediate multi-car pile-up hazard on a major interstate. Physical inspection immediately after the failure proved that the engine oil level was completely full. The internal components catastrophically failed due to a documented, systemic factory defect involving premature rod bearing failure and oil starvation mechanisms, entirely unrelated to consumer maintenance.SECTION 2: PRIOR SAFETY COMPLAINTS & DOCUMENTED TIMELINEHyundai Motor America has intentionally forced me to operate a known, life-threatening safety hazard for 17 months, during which I drove an additional 31,000 miles under extreme duress. I filed formal oil consumption complaints with Hyundai Corporate every three to four months. I was forced to manually replenish the engine oil every 1,000 miles due to excessive oil loss.Specific safety reports detailing hazardous engine behavior were formally logged with Hyundai on November 25, 2025, and again in April 2026. Rather than remediating the vehicle, Hyundai corporate claims adjusters and dealership supervisors ignored these warning tracks, effectively throwing a consumer out into active traffic in an unsafe, defective vehicle.SECTION 3: AUTOMATIC SHUTDOWN TRAUMA & ACCIDENT RISKThe manufacturing defects caused an intermittent, un-commanded automatic The manufacturing defects caused an intermittent, un-commanded automatic engine shutdown condition. On 5 to 10 separate occasions while stationary at active traffic lights, the vehicle stalled10timesRead more
Incident date: Jul 16, 2026
Hyundai Motor America & Wallace Hyundai of StuartVEHICLE: 2020 Hyundai Santa Fe (2.4L Theta II GDI Engine)VIN: 5NMS23AD5LH181669INCIDENT MILEAGE: 181,000 MiHYUNDAI CASE NUMBER: 42981944SECTION 1: CATASTROPHIC INTERSTATE SAFETY INCIDENTOn July 16, 2026, while navigating heavy, high-speed traffic on Interstate 95 (I-95) at approximately 80 to 85 MPH, my vehicle suffered an un-commanded, catastrophic
... mechanical engine seizure. The vehicle instantly dropped from highway speeds down to a 21 MPH "limp mode," creating an immediate multi-car pile-up hazard on a major interstate. Physical inspection immediately after the failure proved that the engine oil level was completely full. The internal components catastrophically failed due to a documented, systemic factory defect involving premature rod bearing failure and oil starvation mechanisms, entirely unrelated to consumer maintenance.SECTION 2: PRIOR SAFETY COMPLAINTS & DOCUMENTED TIMELINEHyundai Motor America has intentionally forced me to operate a known, life-threatening safety hazard for 17 months, during which I drove an additional 31,000 miles under extreme duress. I filed formal oil consumption complaints with Hyundai Corporate every three to four months. I was forced to manually replenish the engine oil every 1,000 miles due to excessive oil loss.Specific safety reports detailing hazardous engine behavior were formally logged with Hyundai on November 25, 2025, and again in April 2026. Rather than remediating the vehicle, Hyundai corporate claims adjusters and dealership supervisors ignored these warning tracks, effectively throwing a consumer out into active traffic in an unsafe, defective vehicle.SECTION 3: AUTOMATIC SHUTDOWN TRAUMA & ACCIDENT RISKThe manufacturing defects caused an intermittent, un-commanded automatic The manufacturing defects caused an intermittent, un-commanded automatic engine shutdown condition. On 5 to 10 separate occasions while stationary at active traffic lights, the vehicle stalled10timesRead more
Incident date: Sep 15, 2025
The passenger seat airbag system warning light is on and stays on, there is an active recall but my vin is not yet included
Incident date: Aug 27, 2026
The contact owns a 2020 Hyundai Elantra. The contact stated that while driving 25 MPH, there was an abnormal rattling sound coming from the engine, with the check engine warning light illuminated. The contact pulled over to the side of the road. The vehicle was restarted but unexpectedly stalled. The vehicle was taken to an independent mechanic and was diagnosed with camshaft failure. The vehicle
... was towed to the dealer and was diagnosed with engine failure caused by a misfire. The contact was informed that the engine needed to be repaired. The vehicle was not repaired. The vehicle was taken to another independent mechanic and was diagnosed with camshaft failure. The manufacturer was not made aware of the failure. The approximate failure mileage was 46,691.Read more
Incident date: Sep 2, 2026
While driving, the vehicle suddenly lost motive power on the highway and would not accelerate beyond approximately 20 mph despite accelerator input. There were no warning lights or check-engine light. The condition created a safety hazard because the vehicle could not maintain normal traffic speed. Hyundai dealer has been unable to determine the cause on other vehicles with the same problem, and w
... as trying to discourage me from reporting this. They also said that they'd keep the car for 3 days, and likely return it with no diagnosis, so do I really want to go through this? They seemed unconcerned that this is a very dangerous issue in a highway.Read more
Incident date: Sep 2, 2026
While driving, the vehicle suddenly lost motive power on the highway and would not accelerate beyond approximately 20 mph despite accelerator input. There were no warning lights or check-engine light. The condition created a safety hazard because the vehicle could not maintain normal traffic speed. Hyundai dealer has been unable to determine the cause on other vehicles with the same problem, and w
... as trying to discourage me from reporting this. They also said that they'd keep the car for 3 days, and likely return it with no diagnosis, so do I really want to go through this? They seemed unconcerned that this is a very dangerous issue in a highway.Read more
Incident date: Sep 2, 2026
While driving, the vehicle suddenly lost motive power on the highway and would not accelerate beyond approximately 20 mph despite accelerator input. There were no warning lights or check-engine light. The condition created a safety hazard because the vehicle could not maintain normal traffic speed. Hyundai dealer has been unable to determine the cause on other vehicles with the same problem, and w
... as trying to discourage me from reporting this. They also said that they'd keep the car for 3 days, and likely return it with no diagnosis, so do I really want to go through this? They seemed unconcerned that this is a very dangerous issue in a highway.Read more
Incident date: Aug 27, 2026
While driving this EV with cruise control on, the dashboard suddenly showed a message that “Smart Cruise Control conditions not met”. Attempting to re-engage the cruise control did not work and then the vehicle suddenly lost all propulsion (pressing the accelerator did nothing). The car quickly slowed to about 20 mph before we could maneuver it to the shoulder and turn it off. After a coupl
... e minutes, we restarted the car and drove it to the dealer. There were no other messages or warning lights or indicators. The dealer could not find anything wrong and asked us to pick up the car and resume using it. We use both a home charger (Emporia) and roadside (Tesla) chargers.Read more
Incident date: Aug 27, 2026
While driving this EV with cruise control on, the dashboard suddenly showed a message that “Smart Cruise Control conditions not met”. Attempting to re-engage the cruise control did not work and then the vehicle suddenly lost all propulsion (pressing the accelerator did nothing). The car quickly slowed to about 20 mph before we could maneuver it to the shoulder and turn it off. After a coupl
... e minutes, we restarted the car and drove it to the dealer. There were no other messages or warning lights or indicators. The dealer could not find anything wrong and asked us to pick up the car and resume using it. We use both a home charger (Emporia) and roadside (Tesla) chargers.Read more
Incident date: Aug 27, 2026
While driving this EV with cruise control on, the dashboard suddenly showed a message that “Smart Cruise Control conditions not met”. Attempting to re-engage the cruise control did not work and then the vehicle suddenly lost all propulsion (pressing the accelerator did nothing). The car quickly slowed to about 20 mph before we could maneuver it to the shoulder and turn it off. After a coupl
... e minutes, we restarted the car and drove it to the dealer. There were no other messages or warning lights or indicators. The dealer could not find anything wrong and asked us to pick up the car and resume using it. We use both a home charger (Emporia) and roadside (Tesla) chargers.Read more
Incident date: Aug 29, 2026
The car was shaking, idling and accelerating and engine lights on.
Incident date: Aug 29, 2026
The car was shaking, idling and accelerating and engine lights on.
Incident date: Aug 29, 2026
The car was shaking, idling and accelerating and engine lights on.
Incident date: Apr 2, 2023
The contact owns a 2019 Hyundai Tucson. The contact stated that while the vehicle was parked in the driveway and turned off, the vehicle rolled backwards and occasionally ended up in the street in front of the residence. The contact stated that while driving 55 MPH, the vehicle stalled in the middle of traffic and other vehicles to go around the vehicle. The vehicle was restarted and was pulled ov
... er to the side of the road and the vehicle stalled. The vehicle was towed to a dealer where it was diagnosed and determined that the engine block needed to be replaced. The contact stated that there was ice built up underneath the tires, and an unknown ring was replaced. The vehicle was repaired, but the vehicle reversed inadvertently while parked and stalled while driving at various speeds, and the vehicle failed to accelerate as intended, and the vehicle was shaking abnormally on several occasions. The vehicle was taken to the same dealer but was not diagnosed; however, the contact was notified that the failure might be associated with the catalytic converter. The manufacturer was notified of the failure. The failure mileage was approximately 60,000.Read more
Incident date: May 1, 2026
Following a dealer transfer assembly replacement under warranty on a 2025 Hyundai Palisade, technicians failed to perform a post-repair alignment and left the driveshaft unseated. The 2nd dealership we went to subsequently misdiagnosed the resulting suspension warping as 'tire overinflation' on June 5. As a direct result, my family unknowingly drove thousands of highway miles across state lines to
... MT and SD with an unseated drivetrain and a completely loose structural subframe bolt, presenting a severe risk of catastrophic suspension/steering failure at highway speeds. They misdiagnosed 3 times and claimed to do test drives each time, but each time we got in the vehicle, we heard the noises, they said they could not hear. Had a mechanic ride with to verify the noise, and only diagnosed the driveshaft unseated afterward, but not the subframe bolt, which the structural defect was finally confirmed on August 25, the 4th time at the 2nd dealer.Read more
Incident date: May 1, 2026
Following a dealer transfer assembly replacement under warranty on a 2025 Hyundai Palisade, technicians failed to perform a post-repair alignment and left the driveshaft unseated. The 2nd dealership we went to subsequently misdiagnosed the resulting suspension warping as 'tire overinflation' on June 5. As a direct result, my family unknowingly drove thousands of highway miles across state lines to
... MT and SD with an unseated drivetrain and a completely loose structural subframe bolt, presenting a severe risk of catastrophic suspension/steering failure at highway speeds. They misdiagnosed 3 times and claimed to do test drives each time, but each time we got in the vehicle, we heard the noises, they said they could not hear. Had a mechanic ride with to verify the noise, and only diagnosed the driveshaft unseated afterward, but not the subframe bolt, which the structural defect was finally confirmed on August 25, the 4th time at the 2nd dealer.Read more
Incident date: May 1, 2026
Following a dealer transfer assembly replacement under warranty on a 2025 Hyundai Palisade, technicians failed to perform a post-repair alignment and left the driveshaft unseated. The 2nd dealership we went to subsequently misdiagnosed the resulting suspension warping as 'tire overinflation' on June 5. As a direct result, my family unknowingly drove thousands of highway miles across state lines to
... MT and SD with an unseated drivetrain and a completely loose structural subframe bolt, presenting a severe risk of catastrophic suspension/steering failure at highway speeds. They misdiagnosed 3 times and claimed to do test drives each time, but each time we got in the vehicle, we heard the noises, they said they could not hear. Had a mechanic ride with to verify the noise, and only diagnosed the driveshaft unseated afterward, but not the subframe bolt, which the structural defect was finally confirmed on August 25, the 4th time at the 2nd dealer.Read more
Incident date: Aug 5, 2026
The contact owns a 2026 Hyundai Santa Cruz. The contact stated that while driving at an undisclosed speed, the message "You May Want to Consider Taking a Break" was displayed with an audible alert nine times during a thirteen-mile trip, causing a distraction. The vehicle was taken to the dealer, who determined that the Lane Departure feature was built into the computer system and was unable to be
... disabled. The failure mileage was approximately 5.Read more
Incident date: Jun 30, 2026
While traveling northbound on [XXX] in Florida traffic came to a stop, and when I stopped, my engine seized, I attempted to restart, but was unable to get a restart. My attempts to restart caused the starter to start burning smoke was coming from under the hood this put me at serious risk being on an interstate highway in the left lane at [XXX]. It was very difficult for me to push the car to the
... side of the road in this dangerous situation, recalling how Harry Chapin died in New York, because his car failed, and was struck by another vehicle. I was able to get the car onto the shoulder away from the moving traffic. The engine that seized is a 2.0 GDI engine and that engine has been identified to have multiple failures and being replaced after failing . Hyundai sent a letter. I believe this engine should be recalled and replaced before others are put in the same dangerous situation. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)Read more
Fire
Incident date: Jan 1, 2025
Our vehicle has twice gone from parking to drive and moved on its own! Both times almost running over my wife
Crash
1 injured
Incident date: Jan 1, 2025
Our vehicle has twice gone from parking to drive and moved on its own! Both times almost running over my wife
Crash
1 injured
Incident date: Jan 1, 2025
Our vehicle has twice gone from parking to drive and moved on its own! Both times almost running over my wife
Crash
1 injured
Incident date: Jul 28, 2026
I own a Hyundai Tucson 2018 SEL Plus. My problem is my vehicle is coming to the end of it's 100,000 mile warranty. This vehicle started burning oil about 30,000 miles and it got worse. I checked on recalls and there was no recalls for my VIN number for this vehicle. My Hyundai vehicle is burning a quart of oil every 300 miles and this is no exaggeration. I bought the car brand new and had to repla
... ce my 1st Catalytic converter at 79,627 miles on 5/14/25 that was originally on the car. The second Catalytic converter that I had put on I, had to replace that Catalytic converter again at my cost at approximately $900.00 and then after that it plugged up again at 91,928 miles on 7/28/26 and I, had to replace that one that is the third one now. The Catalytic converter company had warranted the work and the converter to be installed. This has caused the car to not only misfire, but become a possible road hazard to miss enough and possibly cause it to stall or reduce the power output of the vehicle while in operation and on public roads in traffic and possibly create a major accident on the freeway. This is a major saftey concern being that you could not only lose power while in motion but could lock up the engine. We talked to mechanics, other people that own them and even the service guys at Hyundai knew it is problem. The service genteman said that they would clean the valves I, believe they talked about cleaning the valves with walnuts like sand blasting and I, told him cleaning the valves is not going to do anything for the oil consumption, because the oil consumption is the engine.The engine when it was originally made on the number 3 cyclinder was bored wrong. That is our problem because the oil rings and rings are letting the oil bypass the piston and filing out the iriadium spark plug and our car mileage has gone down because of this the rings are wearing faster and causing us to keep buying newer spark plugs. " Check Engine Light Flashes " plugged Cat Converter.Read more
Incident date: Sep 2, 2026
Braking system failed to brake properly. It feels like even though the brakes were pressed all the way down, the car did not brake as it should. Also, the automatic collision avoidance system did not respond.
Crash
5 injured
Incident date: Aug 27, 2026
Sudden uncommanded high engine revving 4000 rpm with loss of forward acceleration while driving. ISG (Idle Stop n Go) indicator on dashboard turned yellow and system could not manually override. Vehicle was turned off. After car turned back on after about 30 minutes It entered a Protective Limp Home Mode, which cleared the systems. All seemed back to normal. It was advised to have vehicle towed t
... o the dealer where purchased. The vehicle has only 4,000 miles and 9 months old. To date the dealer could not replicate the malfunction and could not find any abnormalities In the codes.Read more
Incident date: Aug 27, 2026
Sudden uncommanded high engine revving 4000 rpm with loss of forward acceleration while driving. ISG (Idle Stop n Go) indicator on dashboard turned yellow and system could not manually override. Vehicle was turned off. After car turned back on after about 30 minutes It entered a Protective Limp Home Mode, which cleared the systems. All seemed back to normal. It was advised to have vehicle towed t
... o the dealer where purchased. The vehicle has only 4,000 miles and 9 months old. To date the dealer could not replicate the malfunction and could not find any abnormalities In the codes.Read more
Incident date: Mar 13, 2026
I am reporting a recurring safety issue with my 2026 Hyundai Palisade Calligraphy involving severe shaking, sputtering, loss of acceleration/power, stalling, and abnormal drivetrain behavior. The first incident occurred at just under 10,000 miles after driving for approximately one hour. While traveling at highway speeds, the vehicle began shaking severely and lost significant acceleration/power.
... After exiting the highway and stopping, the vehicle shut off. When restarted, it continued shaking and would not accelerate normally. No warning lights appeared. The dealership reported multiple stored fault codes, including transmission-related codes. The codes were reset and the vehicle was returned to me. The same condition later occurred again after extended driving. The vehicle shook severely and lost acceleration, again without warning lights. After being turned off for approximately five minutes and restarted, the symptoms temporarily disappeared. The vehicle has since undergone multiple repair attempts. Hyundai/dealership technicians replaced the flywheel. After that repair, the vehicle developed new shaking/stuttering during startup and shutdown. The vehicle was returned again and a motor mount was repaired/replaced. Two days after receiving the vehicle back from the latest repair, it is now exhibiting another serious drivability issue and appears to remain in first gear or otherwise fails to shift normally. I have video of the severe shaking. A dealership technician also advised me that multiple other 2026 Palisades at that dealership were experiencing similar issues and Hyundai had not determined the underlying cause. I am concerned the vehicle may unexpectedly lose propulsion, stall, or fail to accelerate in traffic or at highway speeds. Multiple repair attempts have not resolved the safety concern. The system will not allow me to upload the videos I have, but you may contact me for them.Read more
Incident date: Mar 13, 2026
I am reporting a recurring safety issue with my 2026 Hyundai Palisade Calligraphy involving severe shaking, sputtering, loss of acceleration/power, stalling, and abnormal drivetrain behavior. The first incident occurred at just under 10,000 miles after driving for approximately one hour. While traveling at highway speeds, the vehicle began shaking severely and lost significant acceleration/power.
... After exiting the highway and stopping, the vehicle shut off. When restarted, it continued shaking and would not accelerate normally. No warning lights appeared. The dealership reported multiple stored fault codes, including transmission-related codes. The codes were reset and the vehicle was returned to me. The same condition later occurred again after extended driving. The vehicle shook severely and lost acceleration, again without warning lights. After being turned off for approximately five minutes and restarted, the symptoms temporarily disappeared. The vehicle has since undergone multiple repair attempts. Hyundai/dealership technicians replaced the flywheel. After that repair, the vehicle developed new shaking/stuttering during startup and shutdown. The vehicle was returned again and a motor mount was repaired/replaced. Two days after receiving the vehicle back from the latest repair, it is now exhibiting another serious drivability issue and appears to remain in first gear or otherwise fails to shift normally. I have video of the severe shaking. A dealership technician also advised me that multiple other 2026 Palisades at that dealership were experiencing similar issues and Hyundai had not determined the underlying cause. I am concerned the vehicle may unexpectedly lose propulsion, stall, or fail to accelerate in traffic or at highway speeds. Multiple repair attempts have not resolved the safety concern. The system will not allow me to upload the videos I have, but you may contact me for them.Read more
Incident date: Aug 20, 2026
Update Re: ODI Complaint Number: 11759237 Subsequent Actions and Manufacturer Refusal to Remediate Safety Defect: Following the [XXX], acute safety incident—where the vehicle lost motive power and entered severe limp mode on [XXX] immediately upon release from Sheehy Hyundai of Chantilly—the vehicle remained in dealer custody for 11 days (August 20–August 31, 2026). Failure to Diagnos
... e Core Defect: Despite recurring total power loss, active diagnostic trouble code P00AF00 (Turbocharger Boost Control Module Performance), and four consecutive turbocharger destructions within 20,000 miles, the authorized dealership refused to conduct internal engine diagnostics, drop the oil pan, inspect the oil filter, or perform borescope checks. Physical Contamination Documented: On August 29, 2026, an on-site physical inspection confirmed sparkling metallic particulate suspended in the engine oil on the dipstick and substantial oil blow-by/intrusion into the turbocharger air intake line. Formal Denial of Safety/Warranty Coverage: On August 31, 2026, dealership management and Hyundai Motor America (Consumer Affairs Case #[XXX]) formally denied warranty assistance and refused engine teardown under the Theta II Lifetime Engine Warranty Settlement. Coverage was declined citing "outside influence" due to an aftermarket turbocharger assembly, while Hyundai refused to investigate the underlying engine failure contaminating and destroying the forced-induction system. Evidence Preservation: On August 31, 2026, the vehicle was towed to an independent facility to mitigate road hazards, conduct teardown diagnostics, and preserve the engine oil/filter for ISO-accredited spectrographic laboratory analysis. The manufacturer released an unsafe vehicle into traffic on August 20, 2026, and subsequently refused to investigate or remedy a documented internal engine failure that creates sudden, recurring loss of motive power. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)Read more
Incident date: Aug 20, 2026
Update Re: ODI Complaint Number: 11759237 Subsequent Actions and Manufacturer Refusal to Remediate Safety Defect: Following the [XXX], acute safety incident—where the vehicle lost motive power and entered severe limp mode on [XXX] immediately upon release from Sheehy Hyundai of Chantilly—the vehicle remained in dealer custody for 11 days (August 20–August 31, 2026). Failure to Diagnos
... e Core Defect: Despite recurring total power loss, active diagnostic trouble code P00AF00 (Turbocharger Boost Control Module Performance), and four consecutive turbocharger destructions within 20,000 miles, the authorized dealership refused to conduct internal engine diagnostics, drop the oil pan, inspect the oil filter, or perform borescope checks. Physical Contamination Documented: On August 29, 2026, an on-site physical inspection confirmed sparkling metallic particulate suspended in the engine oil on the dipstick and substantial oil blow-by/intrusion into the turbocharger air intake line. Formal Denial of Safety/Warranty Coverage: On August 31, 2026, dealership management and Hyundai Motor America (Consumer Affairs Case #[XXX]) formally denied warranty assistance and refused engine teardown under the Theta II Lifetime Engine Warranty Settlement. Coverage was declined citing "outside influence" due to an aftermarket turbocharger assembly, while Hyundai refused to investigate the underlying engine failure contaminating and destroying the forced-induction system. Evidence Preservation: On August 31, 2026, the vehicle was towed to an independent facility to mitigate road hazards, conduct teardown diagnostics, and preserve the engine oil/filter for ISO-accredited spectrographic laboratory analysis. The manufacturer released an unsafe vehicle into traffic on August 20, 2026, and subsequently refused to investigate or remedy a documented internal engine failure that creates sudden, recurring loss of motive power. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)Read more
Incident date: Aug 20, 2026
Update Re: ODI Complaint Number: 11759237 Subsequent Actions and Manufacturer Refusal to Remediate Safety Defect: Following the [XXX], acute safety incident—where the vehicle lost motive power and entered severe limp mode on [XXX] immediately upon release from Sheehy Hyundai of Chantilly—the vehicle remained in dealer custody for 11 days (August 20–August 31, 2026). Failure to Diagnos
... e Core Defect: Despite recurring total power loss, active diagnostic trouble code P00AF00 (Turbocharger Boost Control Module Performance), and four consecutive turbocharger destructions within 20,000 miles, the authorized dealership refused to conduct internal engine diagnostics, drop the oil pan, inspect the oil filter, or perform borescope checks. Physical Contamination Documented: On August 29, 2026, an on-site physical inspection confirmed sparkling metallic particulate suspended in the engine oil on the dipstick and substantial oil blow-by/intrusion into the turbocharger air intake line. Formal Denial of Safety/Warranty Coverage: On August 31, 2026, dealership management and Hyundai Motor America (Consumer Affairs Case #[XXX]) formally denied warranty assistance and refused engine teardown under the Theta II Lifetime Engine Warranty Settlement. Coverage was declined citing "outside influence" due to an aftermarket turbocharger assembly, while Hyundai refused to investigate the underlying engine failure contaminating and destroying the forced-induction system. Evidence Preservation: On August 31, 2026, the vehicle was towed to an independent facility to mitigate road hazards, conduct teardown diagnostics, and preserve the engine oil/filter for ISO-accredited spectrographic laboratory analysis. The manufacturer released an unsafe vehicle into traffic on August 20, 2026, and subsequently refused to investigate or remedy a documented internal engine failure that creates sudden, recurring loss of motive power. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)Read more
Incident date: Apr 27, 2026
The Auto Hold and EPB orange warning lights emerged while commuting to work, which are associated with the brakes. The problem was diagnosed by the dealer because the other car we own is also an Ioniq and we have had two different Auto Hold problems noted with that automobile (NHTSA tracking numbers 11761449 and 11761458), therefore we sadly have experience detailing this defect. There were no iss
... ues with the car prior to the Auto Hold/EPB warning lights appearing. The vehicle has been inspected by the dealership and the part has been replaced.Read more
Incident date: Aug 10, 2026
The Auto Hold and EPB orange warning lights have emerged for the second time on this vehicle after fixing an initial Auto Hold/EPB problem at mileage ~88-89K (tracking number assigned by NHTSA for this issue was 11761449). The mechanic stated this feature can malfunction in the error mode leading to unprompted braking in a previous conversation. After taking it into the dealership for review, it w
... as revealed that a different wheel's braking machinery was compromised and needed to now be replaced making it the second repair of the same part on first the left rear now the right rear wheels. The first occurrence of the second warning light emerged ~94K. Of note, we purchased another Ioniq and have just experienced the same issue for the second times in that vehicle at mileage ~31K and ~34K, so it appears to be a common defect in this automobile.Read more
Incident date: Sep 19, 2024
The Auto Hold and EPB orange warning lights have been a recurring problem with our 2022 Hyundai Ioniq. We first noticed the car exhibit a jerky/jolting hesitation after accelerating from a complete stop which was reported to the dealership with confirmed paperwork at ~52K miles. The Auto Hold and EPB orange warning lights have been documented via photographs and video on been active at mileage ~58
... K and 72K, but the dealership could not reproduce (or scan the codes?) the warning light signature or jerking motion. Additionally, the car indicated that is was trying to either activate or deactivate the Auto Hold function even when the car was in motion and is never turned utilized by any driver of the vehicle. Even though this problem was described as hazardous and may cause the brakes to lock leading to an accident. Finally at ~88K miles the dealership was capable of properly diagnosing the problem and replaced the left rear caliper with CPB motor.Read more
Incident date: Aug 27, 2026
The car seat did not receive any damages. However, the car airbags went off. The vehicle is damaged and a police report was made. The car seat was not inspected. I called directly to the car seat company and they recommended to reach out to NHTSA for further inspection of the car seat.
Crash
1 injured
Incident date: Jun 6, 2025
I am reporting a potential safety defect involving repeated windshield chipping and cracking on my 2025 Hyundai Santa Fe. The vehicle was purchased new. The first incident occurred on April 15, 2025, approximately three months after I purchased the vehicle. While driving approximately 60 mph on a highway in clear, dry conditions with no gravel or unusual road conditions, a small rock struck the up
... per-right portion of the windshield. The windshield cracked from the impact. The windshield was subsequently replaced on June 6, 2025. In June 2026, while again driving approximately 60 mph on a highway under clear and dry conditions, a small rock struck the center of the windshield and caused a chip. In July 2026, approximately one month later, another small pebble struck the upper-middle portion of the windshield and caused another chip. There were no crashes, sudden braking, turning maneuvers, or unusual driving conditions involved in these incidents. I am concerned because the windshield has repeatedly chipped or cracked from relatively small rocks or pebbles. I have owned and driven other vehicles for many years and have never experienced this level of repeated windshield damage from minor road debris. The windshield was supplied by Hyundai. I believe the repeated failures warrant investigation into the quality, durability, material, manufacturing, or specifications of the windshield glass used in this vehicle. The windshield is an important safety component, and a chip can potentially develop into a larger crack and impair the windshield's integrity while the vehicle is being driven. I have photographs of the most recent chip and an invoice documenting the windshield replacement performed on June 6, 2025. I am requesting that NHTSA review this complaint and determine whether similar complaints exist and whether a safety-related defect or trend may be present in the 2025 Hyundai Santa Fe.Read more
Incident date: Oct 30, 2025
The contact owns a 2017 Hyundai Sonata. The contact stated that the vehicle experienced excessive oil consumption with an abnormal burning odor. The vehicle was taken to a dealer, and an oil consumption test was performed. The contact was informed that the vehicle passed the inspection. While driving later, the vehicle stalled and was taken back to the dealer, where it was determined that the vehi
... cle was consuming an excessive amount of engine oil, and several DTC including the Knock Sensor Detection System (KSDS) were found. The contact stated that while driving or reversing at various speeds, the vehicle shuddered, made abnormal rattling sounds, entered HEV Lock Mode, and the vehicle stalled. The vehicle occasionally came to a complete stop in the middle of the road and had to be pushed out of the roadway. On other occasions, the driver was able to pull over to the side of the road. The vehicle failed to restart and was towed after stalling. The contact stated that the check engine warning light was illuminated before the vehicle entered HEV Lock Mode, with several unknown warning lights illuminated. The vehicle was towed to the dealer, where several tests, including bearing clearance tests and unknown repairs, were performed; however, the failure persisted. During the final service visit, the dealer diagnosed the vehicle with engine wear and tear and fractured pistons. The dealer determined that the engine needed to be replaced; however, the service manager informed the contact that there was no guarantee that replacing the engine or catalytic converter would resolve the failure due to severe engine damage. The vehicle was not repaired. The manufacturer was notified of the failure and offered loaner vehicle assistance on several occasions; however, coverage for the engine replacement was denied. The failure mileage was approximately 110,000.Read more
Incident date: Jun 29, 2026
I am reporting a potential safety defect involving my 2021 Hyundai Palisade Calligraphy AWD. The vehicle has experienced repeated engine and drivability problems and multiple breakdowns following replacement of the engine by Hyundai. The original engine developed excessive oil consumption and was ultimately replaced by Hyundai with a new engine. Following the engine replacement, the vehicle expe
... rienced numerous additional mechanical problems and repair attempts, including engine rattling/pinging, intake-manifold replacement, oil valve-seal replacement, multiple cylinder misfires, ignition-system problems and an ignition-coil failure. Most concerning are repeated incidents involving severe shaking/lurching, loss of engine power, stalling and failure to restart. During one incident following repairs, the vehicle ran extremely rough, stalled and would not restart after approximately 20 miles of driving and had to be towed back to the dealership. During another incident, the vehicle experienced heavy shaking on startup, stalled and had severely limited power. Diagnostic history showed misfires involving multiple cylinders. On June 29, 2026, at approximately 103,671 miles, I was driving at approximately 50 mph when the vehicle began to lurch and shake, lost power, stalled and would not restart. The vehicle had to be towed back to the Hyundai dealership. The unexpected loss of propulsion and stalling while traveling at approximately 50 mph created a serious safety concern because I could no longer rely upon the vehicle to maintain power in traffic. The dealership subsequently identified an ignition-coil short/failure and replaced an ignition coil. The vehicle has nevertheless continued to experience additional mechanical problems. The vehicle is currently again at the Hyundai dealership. It has generated diagnostic code P0430 for Bank 2 catalyst efficiency below threshold, and Hyundai has recommended replacement of both catalytic converter/manifold assemblies. ThRead more
Incident date: Jun 29, 2026
I am reporting a potential safety defect involving my 2021 Hyundai Palisade Calligraphy AWD. The vehicle has experienced repeated engine and drivability problems and multiple breakdowns following replacement of the engine by Hyundai. The original engine developed excessive oil consumption and was ultimately replaced by Hyundai with a new engine. Following the engine replacement, the vehicle expe
... rienced numerous additional mechanical problems and repair attempts, including engine rattling/pinging, intake-manifold replacement, oil valve-seal replacement, multiple cylinder misfires, ignition-system problems and an ignition-coil failure. Most concerning are repeated incidents involving severe shaking/lurching, loss of engine power, stalling and failure to restart. During one incident following repairs, the vehicle ran extremely rough, stalled and would not restart after approximately 20 miles of driving and had to be towed back to the dealership. During another incident, the vehicle experienced heavy shaking on startup, stalled and had severely limited power. Diagnostic history showed misfires involving multiple cylinders. On June 29, 2026, at approximately 103,671 miles, I was driving at approximately 50 mph when the vehicle began to lurch and shake, lost power, stalled and would not restart. The vehicle had to be towed back to the Hyundai dealership. The unexpected loss of propulsion and stalling while traveling at approximately 50 mph created a serious safety concern because I could no longer rely upon the vehicle to maintain power in traffic. The dealership subsequently identified an ignition-coil short/failure and replaced an ignition coil. The vehicle has nevertheless continued to experience additional mechanical problems. The vehicle is currently again at the Hyundai dealership. It has generated diagnostic code P0430 for Bank 2 catalyst efficiency below threshold, and Hyundai has recommended replacement of both catalytic converter/manifold assemblies. ThRead more