The component that malfunctioned was the transfer case, the vehicle was already repaired so an inspection isn't possible anymore. The vehicle behaved as normal until the accelerator was pressed enough to make the front wheels lose traction, in which the vehicle couldn't send power to the rear, because the transfer case was shredded up. When needing to accelerate quickly in traffic, the vehicle would completely spin up the front tires, not being able to put the power down. The dealer reproduced the problem, but initially stated that it was most likely due to the salt on the road (it was winter). As spring arrived, the problem still persisted, in which the dealer checked the transfer case and found it was shredded. They replaced the transmission and transfer case under warranty. There were no warning lights, but accelerating quickly would cause the car to spin up the front tires uncontrollably. In corners, this meant severe understeer that could be dangerous in the wrong circumstances.
My vehicle stopped handling as it usually had and I at a significant decrease in traction and slid off the road and slammed into a road sign. No injuries but significant damage to the vehicle. It seemed as though the all-wheel drive was not working. No warning lamps and computer system indicated that all four wheels were getting power. Took it to dealer and they confirmed that the all-wheel drive system has failed. Splines in the transfer case stripped and transmission needs to be replaced
Crash
I am filing a complaint regarding my 2022 Acura MDX Type S with approximately 70,700 miles. The vehicle developed a suspension system warning, and upon inspection by an Acura dealership, I was informed that the suspension stroke sensor and floor wiring harness are corroded and require replacement. I was quoted approximately $12,000 for the repair. This failure is extremely concerning because the vehicle is only a few years old and this type of corrosion affecting a major wiring harness should not occur under normal operating conditions. The affected components are part of the suspension system, which directly impacts vehicle handling and safety. Due to the failure, the suspension system may not function properly, potentially affecting ride height, stability, and overall control of the vehicle. This raises safety concerns, especially at highway speeds or during emergency maneuvers. There was no prior warning of water intrusion or external damage that would reasonably explain this level of corrosion. This appears to be a premature failure of a critical electrical component. Acura has only offered minimal goodwill assistance, leaving the majority of this extremely costly repair as the responsibility of the owner. I am concerned that this may be a broader issue affecting other vehicles and that it could pose a safety risk if not addressed. I am requesting that this issue be investigated. Thank you.
I am filing a complaint regarding my 2022 Acura MDX Type S with approximately 70,700 miles. The vehicle developed a suspension system warning, and upon inspection by an Acura dealership, I was informed that the suspension stroke sensor and floor wiring harness are corroded and require replacement. I was quoted approximately $12,000 for the repair. This failure is extremely concerning because the vehicle is only a few years old and this type of corrosion affecting a major wiring harness should not occur under normal operating conditions. The affected components are part of the suspension system, which directly impacts vehicle handling and safety. Due to the failure, the suspension system may not function properly, potentially affecting ride height, stability, and overall control of the vehicle. This raises safety concerns, especially at highway speeds or during emergency maneuvers. There was no prior warning of water intrusion or external damage that would reasonably explain this level of corrosion. This appears to be a premature failure of a critical electrical component. Acura has only offered minimal goodwill assistance, leaving the majority of this extremely costly repair as the responsibility of the owner. I am concerned that this may be a broader issue affecting other vehicles and that it could pose a safety risk if not addressed. I am requesting that this issue be investigated. Thank you.
I am filing a complaint regarding my 2022 Acura MDX Type S with approximately 70,700 miles. The vehicle developed a suspension system warning, and upon inspection by an Acura dealership, I was informed that the suspension stroke sensor and floor wiring harness are corroded and require replacement. I was quoted approximately $12,000 for the repair. This failure is extremely concerning because the vehicle is only a few years old and this type of corrosion affecting a major wiring harness should not occur under normal operating conditions. The affected components are part of the suspension system, which directly impacts vehicle handling and safety. Due to the failure, the suspension system may not function properly, potentially affecting ride height, stability, and overall control of the vehicle. This raises safety concerns, especially at highway speeds or during emergency maneuvers. There was no prior warning of water intrusion or external damage that would reasonably explain this level of corrosion. This appears to be a premature failure of a critical electrical component. Acura has only offered minimal goodwill assistance, leaving the majority of this extremely costly repair as the responsibility of the owner. I am concerned that this may be a broader issue affecting other vehicles and that it could pose a safety risk if not addressed. I am requesting that this issue be investigated. Thank you.
MDX Type S with 63k miles. After performing diagnostic check there were several fault codes related to the vehicle's suspension system. Upon inspection, they identified issues with the ride height (stroke) sensors and wiring. The right rear, left rear, and right front sensors are affected. The right rear sensor has a broken pin, and part of that pin is stuck in the wiring connector. The left rear sensor also has a pin that is corroded. Additionally, the main wiring harness along the floor is corroded. This is due to poor location of wire harness in the Type S, and corrosion was due to salt exposure from icy roads. Dealership confirmed this was a known issue and had about a dozen of these replacements in the last few months.
MDX Type S with 63k miles. After performing diagnostic check there were several fault codes related to the vehicle's suspension system. Upon inspection, they identified issues with the ride height (stroke) sensors and wiring. The right rear, left rear, and right front sensors are affected. The right rear sensor has a broken pin, and part of that pin is stuck in the wiring connector. The left rear sensor also has a pin that is corroded. Additionally, the main wiring harness along the floor is corroded. This is due to poor location of wire harness in the Type S, and corrosion was due to salt exposure from icy roads. Dealership confirmed this was a known issue and had about a dozen of these replacements in the last few months.
Vehicle has a service bulletin issued by NHTSA and Honda/Acura of North America refuses to acknowledge it or fix the problem. for 4 years. Service Bulletin 24-025
All Wheel Drive system failure. My vehicle's all wheel drive system failed during a snow storm, it reverted to Front wheel drive only.
In January of 2026, when driving under normal conditions, the 2022 Acura MDX made a loud clunking noise and power was temporarily disrupted. The vehicle had to be stopped on the side of the road as the clunking noise persisted. This occurred on a major highway and put the driver and passengers at risk as we had to quickly get to the shoulder. After inspecting the vehicle for any visible signs of damage we continued home without issues. Now, March of 2026, we took the car for routine service and was contacted by the dealership and informed the transfer case and transmission needed to be replaced. The dealership indicating they were in contact with Honda USA to see what they could do for us. A quick search of the Internet revealed NHTSA DP26001, so we now know this issue has occurred on many Acura MDX's of the same year. No warning lamps illuminated. We were unaware that the vehicle was running in 2erWD instead of 4WD. There were no warnings leading up to the event.
Please add me to the compliant pool. My transfer case/transmission went out - 2022, 80,000 miles. March 6, 2026 NHTSA CAMPAIGN NUMBER: DP26001 OPEN INVESTIGATION All wheel drive allegation NHTSA Action Number: DP26001 Components: POWER TRAIN Opened From: March 6, 2026 – Present Summary The Office of Defects Investigation (ODI) received a Petition dated January 9, 2026, requesting an investigation into the loss of the optional all-wheel drive capability in model year (MY) 2021-2023 Acura TLX and MY 2022-2023 Acura MDX vehicles. The Petition contends that the interfacing splines between the transmission and the rear wheel drive power take off unit are failing. Failure of these splines prevents the transfer of drive power to the rear axle, making the vehicle front wheel drive only. The Petition further alleges that this failure results in a reduction of vehicle directional control. The Petitioner cites 48 complaints received by ODI alleging the same failure. ODI will evaluate these complaints to determine if they are related to the failure cited in the Petition and will conduct a technical review under 49 CFR Part 552. This Defect Petition is being opened to evaluate whether to grant or deny the Petition. The Petition can be viewed at NHTSA.gov under NHTSA Number 11712885.
Please add me to the compliant pool. My transfer case/transmission went out - 2022, 80,000 miles. March 6, 2026 NHTSA CAMPAIGN NUMBER: DP26001 OPEN INVESTIGATION All wheel drive allegation NHTSA Action Number: DP26001 Components: POWER TRAIN Opened From: March 6, 2026 – Present Summary The Office of Defects Investigation (ODI) received a Petition dated January 9, 2026, requesting an investigation into the loss of the optional all-wheel drive capability in model year (MY) 2021-2023 Acura TLX and MY 2022-2023 Acura MDX vehicles. The Petition contends that the interfacing splines between the transmission and the rear wheel drive power take off unit are failing. Failure of these splines prevents the transfer of drive power to the rear axle, making the vehicle front wheel drive only. The Petition further alleges that this failure results in a reduction of vehicle directional control. The Petitioner cites 48 complaints received by ODI alleging the same failure. ODI will evaluate these complaints to determine if they are related to the failure cited in the Petition and will conduct a technical review under 49 CFR Part 552. This Defect Petition is being opened to evaluate whether to grant or deny the Petition. The Petition can be viewed at NHTSA.gov under NHTSA Number 11712885.
Please add me to the compliant pool. My transfer case/transmission went out - 2022, 80,000 miles. March 6, 2026 NHTSA CAMPAIGN NUMBER: DP26001 OPEN INVESTIGATION All wheel drive allegation NHTSA Action Number: DP26001 Components: POWER TRAIN Opened From: March 6, 2026 – Present Summary The Office of Defects Investigation (ODI) received a Petition dated January 9, 2026, requesting an investigation into the loss of the optional all-wheel drive capability in model year (MY) 2021-2023 Acura TLX and MY 2022-2023 Acura MDX vehicles. The Petition contends that the interfacing splines between the transmission and the rear wheel drive power take off unit are failing. Failure of these splines prevents the transfer of drive power to the rear axle, making the vehicle front wheel drive only. The Petition further alleges that this failure results in a reduction of vehicle directional control. The Petitioner cites 48 complaints received by ODI alleging the same failure. ODI will evaluate these complaints to determine if they are related to the failure cited in the Petition and will conduct a technical review under 49 CFR Part 552. This Defect Petition is being opened to evaluate whether to grant or deny the Petition. The Petition can be viewed at NHTSA.gov under NHTSA Number 11712885.
The AWD does not work on the vehicle. Multiple mechanics have been unable to diagnose any problems. We assume it has never worked until needed this season
The car threw several warning lights on the dash. The main indicator was that there was a problem with the air suspension: "Adaptative air suspension problem. Please see your dealer." The left airbag on the suspension then popped, rendering the car undriveable as the compressor would constantly blow air to try to inflate the airbag. The car was repaired at an independent facility at the cost of $2900.00 to replace the suspension airbag and the height sensor, as well as recalibrating ADAS. The car had 66k miles at the time of the incident.
The rear passenger door actuators have both failed. The rear hatch will not unlock using the touch button. We just received notice that our transmission/transfer case needs replacing. $13K for this.
The rear passenger door actuators have both failed. The rear hatch will not unlock using the touch button. We just received notice that our transmission/transfer case needs replacing. $13K for this.
2022 Acura MDX Transfer Case and Transmission Failure – Spline Shearing Description of Incident: I am reporting a catastrophic drivetrain failure on my 2022 Acura MDX. This failure occurred at approximately 50,000 miles. The vehicle initially exhibited a leak at the front differential/transfer case gasket. Upon inspection by the dealership, it was confirmed that both the transfer case and the transmission require complete replacement. This failure matches the technical details in the recently opened NHTSA Action Number DP26001. The interfacing splines between the transmission and the power take-off unit (transfer case) have failed, which is a known defect currently under investigation. Safety Concern: This defect causes a sudden and unexpected loss of all-wheel-drive capability. This results in a significant reduction in vehicle directional control and traction, particularly in wet or slippery conditions, posing an unreasonable safety risk to myself and my family. This occurred well within the expected lifespan of a modern powertrain. Resolution: The vehicle is currently undergoing a full transmission and transfer case replacement at the dealership under warranty.
Catastrophic Power Take-Off Unit (PTU) and Transmission spline failure on a 2022 Acura MDX Type-S vehicle. Had dangerous loss of traction and unexpected handling characteristics with rough shifting, RPM Surges, Sensor problem LOSS OF Power, Delayed shifting with Jerky ride, and a smell of burning oil or rubber, also would move into reverse and the Drive Letter "D" was blinking. The problem was confirmed by Independent service center and it was inspected by the manufacturer. Messages indicating engine/transmission issues appeared on Jan 4, 2026; *Transmission system problem. Paddle shifters not available. See your dealer. *Emissions system problem. Power may be reduced. See your dealer. * Transmission system problem. Avoid heavy acceleration and High speed. See your dealer. * AWD All Wheel Drive system problem. Only the Front wheels may be powered. See your dealer. Notes: (A.) Transmission system errors and infotainment warnings appeared upon concluding a round-trip 3,000+ miles from Southern California to East Texas and back home to Yuma AZ. (B.) After Honda Motor Co gave a 75% Goodwill Offer to replace control box and valves, they indicated that the transmission also need to be replaced. Furthermore, they rescinded the 75% Goodwill coverage which appears to be based solely on the incorrect assumption that third-party transmission repairs were performed and that the transmission was overfilled.
I own a 2022 MDX Type-S. I recently read about complaints about TLX and MDX models losing their AWD system and only resulting to FWD. I was a victim of this in Montana and it was a long fight with Acura / Honda to look at the problem. It was also very dangerous as I worked up in Big Sky and would rely on the AWD system in snowy conditions. This system would always fail. After a long fight, they finally towed my vehicle back to Salt Lake City, where it was purchased from, and replaced a "sensor."
Starting hearing issues late 24 of MDX and TLX losing all-wheel-drive due to splines stripping between the transmission and transfer case. Had car thoroughly inspected and fluid samples taken in December of 24. In February on 25 with a frame rattling bang as I was pulling out onto a street, rear wheel drive went out at 64k. No warning lights and no indicators, dash showed all 4 tires pulling. Dealership verified system was stripped as rear tires were not turning. Also discovered connection between the two units failed allowing water to get in and wash all grease out around the spines. New transmission is two parts number newer than original and transfer case is one parts number newer than original. Also noted transmission and transfer case take less fluids than original. Car feels a lot tighter and smoother on shifting with new units.
Driving on the interstate merging from a ramp to go into the highway , heard a loud bang and the car drivetrain started to wobble . Next noticed more torque in front wheels . Transfer case failed internally , all services done at the right mileage by dealer , transmission spline end got wiped out 66,000 miles on vehicle never was abused just going from point A to B.
During a winter freeze event, the vehicle was unable to climb a slight incline despite being equipped with all-wheel drive. The rear wheels did not appear to be receiving power, and the vehicle experienced significant wheel slip under light throttle input. This occurred in normal driving conditions and was unexpected given the vehicle’s AWD system. There were no warning lights, diagnostic messages, or fault indicators displayed on the instrument cluster at the time of the incident. The lack of any driver notification made it difficult to identify that the AWD system was not functioning properly. After experiencing the issue, the vehicle was taken to an authorized dealership for inspection. The initial assessment did not identify a problem. However, after further review and comparison with a properly functioning vehicle, the dealership confirmed a failure within the SH-AWD system. The affected components were replaced under warranty. The failed components should be available for inspection upon request. The safety concern stems from the absence of warning indicators combined with the loss of intended AWD functionality. In low-traction conditions, the inability of the system to properly distribute power can increase the risk of loss of control, reduced acceleration capability, or inability to safely merge or climb inclines. No prior warning lamps or alerts were presented before the incident.
The contact owns a 2022 Acura MDX. The contact stated that while driving at approximately 2 MPH and depressing the brake pedal, the brakes became stuck or jammed. Later, while driving at approximately 15 MPH, the contact again depressed the brake pedal; however, the brakes failed to respond, remained stuck, and failed to stop the vehicle in an intersection, causing the contact to steer to the right and resulting in a crash with a government dump truck. The driver’s child informed the contact’s husband that the brakes were not working. No warning lights were illuminated at the time of the failure. The contact associated the failure with NHTSA Campaign Number 25V391000 (Service Brakes, Hydraulic). The driver's iPhone detected the crash and automatically contacted the emergency contact and the state police. The driver sustained injuries to the knee, head, neck, and back and was transported to the hospital for medical assistance. There was no airbag deployment, fire, or police report filed; however, a police officer and the state police were present at the scene and moved the vehicle before photos could be taken. The vehicle was towed to an impound lot and later to an auto body shop. The local dealer was contacted and confirmed there were no recalls applicable to the vehicle. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 65,000.
Crash
1 injured
The contact owns a 2022 Acura MDX. The contact stated that while driving at approximately 2 MPH and depressing the brake pedal, the brakes became stuck or jammed. Later, while driving at approximately 15 MPH, the contact again depressed the brake pedal; however, the brakes failed to respond, remained stuck, and failed to stop the vehicle in an intersection, causing the contact to steer to the right and resulting in a crash with a government dump truck. The driver’s child informed the contact’s husband that the brakes were not working. No warning lights were illuminated at the time of the failure. The contact associated the failure with NHTSA Campaign Number 25V391000 (Service Brakes, Hydraulic). The driver's iPhone detected the crash and automatically contacted the emergency contact and the state police. The driver sustained injuries to the knee, head, neck, and back and was transported to the hospital for medical assistance. There was no airbag deployment, fire, or police report filed; however, a police officer and the state police were present at the scene and moved the vehicle before photos could be taken. The vehicle was towed to an impound lot and later to an auto body shop. The local dealer was contacted and confirmed there were no recalls applicable to the vehicle. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 65,000.
Crash
1 injured
While driving in snow and in light rain noticed the MDX pulling and slipping. I realized that only the front tires were trying to drive the vehicle which was causing the car to pull sideways and slip all over the road. I made an appointment with the ACURA dealership and they found the transmission splines stripped out that drive the rear wheels. There was no warning lamps or indication that anything was broke other than very hard to drive in any kind of snow or rain. Talking with the dealer and looking online this seems to be happening to other MDX s also. My car was fixed under the manufacturer warranty and the transmission and transfer case were replaced.
The battery drains quickly. Have replaced the battery twice since 2022. something in the car is draining the battery and making it fail. infotainment screen sometimes stays grey and doesn't go black when car is off. many 2022 mdx owners are having similar battery drain issues requiring frequent battery replacements. please push Acura for a recall and fix.
While driving a 2022 Acura MDX Advance AWD in snowy conditions, I noticed reduced traction and abnormal drivability. Dealer inspection confirmed a catastrophic failure: the front differential and transmission splines were stripped, causing the vehicle to operate in front-wheel drive only. The dealer verified the failure and documented it as a defect on the repair order. The vehicle was maintained exclusively at the dealership since new, and failure occurred at approximately 76,000 miles, outside the original powertrain warranty. There were no warning lights prior to the failure, but loss of AWD in snowy conditions created a significant safety risk.This is a safety-relevant defect affecting traction and stability in adverse conditions.
My Acura service department notified me at my last oil change that they discovered (accidentally) my transmission / transfer case is damaged and is not transferring power to the rear wheels, rendering the vehicle as 2 wheel drive only. This requires a total replacement costing $16,000 +/-. My research indicates this is likely caused by a faulty splined shaft inside the transmission-transfer case assembly used in the early 2022 MDX vehicles.The dashboard info system for SH-AWD indicates that the car IS in All Wheel Drive and there are no messages indicating a problem with the All Wheel Drive. This has not been a problem during non-snow or other slippery conditions, but recent storms have made this a major safety problem for me. The fact that the car sensing system does not detect this problem could cause serious driving danger for unsuspecting drivers. This also prevents Acura/Honda from acting on this issue publicly as owners of this vehicle have no way of knowing the problem exists until it is too late.
The vehicle is experiencing a catastrophic mechanical failure of the transfer case/transmission splines, resulting in a 'Loss of Motive Power.' On two occasions while merging into high-speed highway traffic, the engine revved to high RPMs, but the vehicle failed to accelerate for approximately 5 seconds (Mechanical Neutral Drop). These incidents resulted in near-collisions. The vehicle also exhibits violent torque steer and unpredictable handling. The issue was initially reported to an authorized dealer at 70,320 miles but was misdiagnosed as 'no codes were present.' Subsequent inspection by a second dealer confirmed a mechanical failure of the drive splines. This is a purely mechanical failure that does not trigger dashboard warning lights or Diagnostic Trouble Codes (DTCs), leaving the driver unaware of the impending drivetrain failure until power is lost. First signs of a problem: Late August 2025 First loss of motive power incident: Early October 2025 Second loss of motive power incident: [XXX] Initial Dealer Report: October 28, 2025 (MetroWest Acura) Confirmation video from Acura of Boston: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Vehicle is 3 years old with 60K miles. Transfer case became defective under normal driving and with regular recommended maintenance. We did not know this occurred until a recent dealership visit for another issue. We do not know how long this has been an issue. When the transfer case malfunctioned, there were no warning lights and vehicle has been only functioning in front-wheel drive (designed to be AWD) which is extremely dangerous during the midwestern winters as the weight of the rear of the vehicle leads to sway. Issue was detected by the dealership who states the fix is to replace the entire transmission and transfer case.
My 2022 Acura MDX A-Spec developed an electrical problem where I heard an extremely loud pop come from the stereo system before it stopped working and then the infotainment screen stopped working as well. I took it to the dealer who determined that a water leak in the sunroof drain plug caused the interior of the vehicle to become saturated with water and cause corrosion to electrical bundles. By searching the internet, I found that this was a known manufacturer’s defect with this specific model that had been made known to the dealership and they did nothing about it. Having an electrical problem could have put us at risk had things stopped working at an inopportune time on the highway or caused a malfunction at a critical time while driving. I submitted a request to Acura for an extended warranty of this problem, but that request was denied. They said that there had been an extended warranty for this issue, but that it had expired somewhere between March 2025 (when my normal warranty expired) and October 2025 (when I took it to the dealership for an evaluation of this problem). Acura wouldn’t say when that was, but I was surprised that they were of no help. As I mentioned, this is a known manufacturer’s defect that should have been checked per my normal maintenance visits, but it was ignored until it became an actual problem. They certainly could have been more proactive and it would have saved us a lot of time and expense.
As I was turning right (slowly accelerating from a complete stop) into a shopping center parking lot, I was entering into the lane behind a vehicle that had just passed in front of me (and was headed in the same direction I was going to turn). My 2022 Acura MDX Low Speed Braking Control system engaged for no reason. The breaks slammed hard bringing the car to a hard, sudden stop, and I thought I had been rear-ended by the car behind me. I pressed the gas slowly again and was able to pull into a parking spot and checked my back bumper…PERFECTLY FINE! I googled the issues I experienced and found this is a common problem! This is a dangerous problem! Please hold Acura accountable to fix this issue! For now, I have to remember to turn this Low Speed Braking Control System OFF EVERY TIME I power on my MDX! I am now scared to drive my car!
As I was turning right (slowly accelerating from a complete stop) into a shopping center parking lot, I was entering into the lane behind a vehicle that had just passed in front of me (and was headed in the same direction I was going to turn). My 2022 Acura MDX Low Speed Braking Control system engaged for no reason. The breaks slammed hard bringing the car to a hard, sudden stop, and I thought I had been rear-ended by the car behind me. I pressed the gas slowly again and was able to pull into a parking spot and checked my back bumper…PERFECTLY FINE! I googled the issues I experienced and found this is a common problem! This is a dangerous problem! Please hold Acura accountable to fix this issue! For now, I have to remember to turn this Low Speed Braking Control System OFF EVERY TIME I power on my MDX! I am now scared to drive my car!
As I was turning right (slowly accelerating from a complete stop) into a shopping center parking lot, I was entering into the lane behind a vehicle that had just passed in front of me (and was headed in the same direction I was going to turn). My 2022 Acura MDX Low Speed Braking Control system engaged for no reason. The breaks slammed hard bringing the car to a hard, sudden stop, and I thought I had been rear-ended by the car behind me. I pressed the gas slowly again and was able to pull into a parking spot and checked my back bumper…PERFECTLY FINE! I googled the issues I experienced and found this is a common problem! This is a dangerous problem! Please hold Acura accountable to fix this issue! For now, I have to remember to turn this Low Speed Braking Control System OFF EVERY TIME I power on my MDX! I am now scared to drive my car!
When the vehicle decelerates—either from high speed or while already moving slowly—it frequently jerks just before coming to a complete stop. This issue is especially noticeable at very low speeds or during final braking, where the vehicle may lurch forward by a few inches unless the brakes are applied firmly. Despite multiple visits to the dealership, including transmission resets and software updates, the problem persists. The dealer has not provided a resolution or adequate follow-up. This behavior poses a serious safety risk, particularly in high-traffic areas where precise stopping is critical.
When the vehicle decelerates—either from high speed or while already moving slowly—it frequently jerks just before coming to a complete stop. This issue is especially noticeable at very low speeds or during final braking, where the vehicle may lurch forward by a few inches unless the brakes are applied firmly. Despite multiple visits to the dealership, including transmission resets and software updates, the problem persists. The dealer has not provided a resolution or adequate follow-up. This behavior poses a serious safety risk, particularly in high-traffic areas where precise stopping is critical.
The transmission and transaxle malfunctioned. Evidence was a leak from the transaxle. The dealer confirmed that the vehicle was operating in 2WD mode even though it did not detect any issues from its onboard sensors, and the car thought it was still sending power to all 4 wheels. There were no warning lights that the vehicle was no longer driving in 4wd mode, so the driving dynamics would've been unexpected in conditions that 4wd would normally help, like rain and snow. Unexpectedly experienced tire spin in the rain, for example. The dealer confirmed that both the transmission and transaxle need to be replaced, under the powertrain warranty. The spline between the transaxle and transmission were worn, causing the transaxle to not spin the rear wheels.
The roof sunshade motor has failed. It is a known issue with TSB 23-013
Review mirror became detached , rendering it inoperable and a safety concern. Research shows it a known issue and design flaw for the bracket.
PURCHASED A TIRED FOR GIGA TIRES HAD THE DEALERSHIP , ACURA OF COLUMBUS ATTEMPT TO MOUNT AND INSTALL THE TECHNICIAN DISCOVERS A HOLE AND A SLICE ON AND IN THE TIRE, CONTACTED GIGA TIRE FOR AN EXCHANGE THEY STATED THAT THE HOLE IN THE TIRE WAS CAUSED BY ROAD HAZARD, THE TIRE HAS NEVER BEEN DRIVEN ON, IT BRAND NEW OR CLAIMED TOO BE
The transfer case spline stripped preventing power to be sent to the rear wheels
Upon normal highway driving a couple of months ago, began to notice shifting that was not smooth and rpm "surges" on hills despite constant throttle. Upon taking car to dealer, inspection revealed an internal spline failure between transmission and transfer case. Lead mechanic explained it was not the first he had seen of this model and that it was clearly internal and caused by a manufacturing and/or assembly defect. I caught the problem early enough to not have a complete car failure; however, left untreated, it would lead to a transmission failure. The remedy was a full transmission and transfer case replacement, with repair costs exceeding $13,000. Given car had 84,000 miles, it was not covered by 70,000 Power Train Warranty from Acura. Pictures of parts below.
I was driving to work yesterday morning- busiest time of day on probably the busiest road in our area. My car started freaking out randomly. It popped up numerous errors. The steering wheel locked up. The brakes weren’t working well. I had a car behind me. THANKFULLY they were paying attention because they were very close to rear ending me. But they dodged me. I finally jerked the wheel and got it pulled over to the side of the road until someone could come get me and take me to work. There could have been a different outcome. After being hit head on in February of this year, this incident was NOT good for my PTSD!!!! My anxiety has been through the roof since this incident with a car that I bought SIX MONTHS AGO! As soon as I can trade this car off and get something else, I will be. We still don’t know what it’s wrong with it. We are going to have it towed somewhere on Monday. This was a major safety risk for me AND for the others on the road!!! If my kids had been in the car, I would’ve been even more upset over the situation.
I was driving to work yesterday morning- busiest time of day on probably the busiest road in our area. My car started freaking out randomly. It popped up numerous errors. The steering wheel locked up. The brakes weren’t working well. I had a car behind me. THANKFULLY they were paying attention because they were very close to rear ending me. But they dodged me. I finally jerked the wheel and got it pulled over to the side of the road until someone could come get me and take me to work. There could have been a different outcome. After being hit head on in February of this year, this incident was NOT good for my PTSD!!!! My anxiety has been through the roof since this incident with a car that I bought SIX MONTHS AGO! As soon as I can trade this car off and get something else, I will be. We still don’t know what it’s wrong with it. We are going to have it towed somewhere on Monday. This was a major safety risk for me AND for the others on the road!!! If my kids had been in the car, I would’ve been even more upset over the situation.
I was driving to work yesterday morning- busiest time of day on probably the busiest road in our area. My car started freaking out randomly. It popped up numerous errors. The steering wheel locked up. The brakes weren’t working well. I had a car behind me. THANKFULLY they were paying attention because they were very close to rear ending me. But they dodged me. I finally jerked the wheel and got it pulled over to the side of the road until someone could come get me and take me to work. There could have been a different outcome. After being hit head on in February of this year, this incident was NOT good for my PTSD!!!! My anxiety has been through the roof since this incident with a car that I bought SIX MONTHS AGO! As soon as I can trade this car off and get something else, I will be. We still don’t know what it’s wrong with it. We are going to have it towed somewhere on Monday. This was a major safety risk for me AND for the others on the road!!! If my kids had been in the car, I would’ve been even more upset over the situation.
The engine suddenly shut off when the vehicle was waiting for traffic light and at full stop. The vehicle would not restart after multiple attempts and had to be towed to dealership. Mechanic at the dealership said the "Idle Stop" feature can drain the battery quickly and had to replace a new battery. We consider this a reportable safety hazard and a potential design defect because 1. The "Idle Stop" feature is turned on by default, though it can be manually turned off. 2. The incident occurred in a very abrupt and unpredictable fashion. The vehicle was started normally about 30-40 minutes before the incidents and has been driven normally in a typical city traffic condition till the incidents occurred. During this period, the computer system did not give off any warning related to a total battery failure.
When starting the vehicle, the steering column extends to the operating position. When it extends, there is a grinding vibration coming up from the base on the floor. This is a very troubling sound as the entire dashboard vibrates.
While driving our sunroof exploded. There was a loud pop, I thought a tire, my grand daughter thought a gun shot. We pulled off the road to find the sunroof had cracked down the sides and the back and a crack diagonally. We were traveling so we taped it up and when we returned home took the MDX to the Acura dealer.
While driving with my small children in the vehicle, my 2022 Acura MDX suddenly displayed multiple simultaneous system failures without warning and the steering wheel locked and the car slowed and the brakes didn't work well: •Brake System Problem – warning that braking performance may be reduced •Electric Power Steering Problem – “Do Not Drive” warning •Vehicle Stability Assist Problem •Hill Start Assist Problem •All Wheel Drive System Problem - •Adaptive Cruise Control Problem •Collision Mitigation Braking System Problem •Lane Keeping Assist System Problem •Trailer Stability Assist System Problem •Brake hold system problem •Vehicle Stability Assist Problem •Electric Power Steering System Problem •Low Speed Braking Control Problem •Road Departure Mitigation System Problem These failures created a serious risk to my life as well as my children's lives by simultaneously disabling braking, steering assist, stability control, and AWD traction. If this had occurred at highway speeds or in a location without space to maneuver, it could have caused a severe crash and even death. The vehicle was towed to the dealer immediately.The tow truck driver stated that he had transported another 2022 Acura MDX with identical failures earlier the same day, suggesting this may be a widespread defect. The dealer found no recalls and attributed the issue to a steering angle sensor malfunction. Given the severity and the risk of injury or death, I am reporting this to NHTSA. Request: NHTSA investigation into whether this is part of a broader safety defect affecting 2022 Acura MDX models, and whether a recall or manufacturer corrective action is warranted.