2021 CHEVROLET BLAZER

1 recalls, 202 complaints - 896 TSBs - 5/5 safety rating

SEAT BELTS

Defect Description

General Motors, LLC (GM) is recalling certain 2020 Chevrolet Bolt EV and 2021 GMC Canyon and Sierra 1500, 2500 and 3500, Yukon, Yukon XL, Cadillac Escalade and Escalade ESV and Chevrolet Blazer, Camaro, Colorado, Equinox, Silverado 1500, 2500 and 3500, Suburban and Tahoe vehicles. Incorrect bolts m... Read more

Consequence

If a seat belt assembly is not properly attached to the vehicle, the seat belt may not properly restrain an occupant in the event of a crash, increasing the risk of injury.

Remedy

GM will notify owners, and dealers will replace the suspect bolts, free of charge. The recall began January 29, 2021. Owners may contact GMC customer service at 1-800-462-8785, Cadillac customer service at 1-800-458-8006, or Chevrolet customer service at 1-800-222-1020. GM's number for this recal... Read more

470 vehicles affected

Manufacturer: General Motors, LLC

Complaint Statistics

202 total complaints 4 crashes 4 fires 4 injuries

Top Reported Components

Component	Complaints
ENGINE	29
ELECTRICAL SYSTEM	25
POWER TRAIN	22
UNKNOWN OR OTHER	16
SERVICE BRAKES	15
FUEL/PROPULSION SYSTEM	11
STEERING	9
STRUCTURE:BODY	7
VEHICLE SPEED CONTROL	6
AIR BAGS	6

Incident date: Aug 1, 2026

The contact owns a 2021 Chevrolet Blazer. The contact stated that a technician identified a radiator leak during an emissions test after smelling an abnormal coolant odor. The technician confirmed that the coolant had leaked from the vehicle. Prior to the discovery by the technician, the contact’s... Read more

Incident date: Aug 19, 2026

The contact owns a 2021 Chevrolet Blazer. The contact stated that while driving 40 MPH, the vehicle stalled and was unable to be restarted. The vehicle was towed to the residence. The husband was a mechanic and discovered the 350-amp fuse failure. The fuse was replaced, and the vehicle was repaired.... Read more

Incident date: Aug 5, 2026

My 2021 Chevrolet Blazer RS equipped with the 3.6L LGX V6 experienced catastrophic engine failure at approximately 90,200 miles. The vehicle had no prior warning. The dealer diagnosed the timing chain / lift/ cam damage. I am requesting investigation into whether this represents a safety or durabili... Read more

Incident date: Aug 15, 2026

Car will not crank, stalled while cranked, throws code P023F

Incident date: Aug 15, 2026

Car will not crank, stalled while cranked, throws code P023F

Incident date: Feb 2, 2026

While idling in my driveway, the engine started to shake and the check engine light came on. Got it diagnosed and was told by a private repair center that we had lost compression in cylinder 4 and that it was not worth the repair and we needed to replace the engine. Got it towed to the dealership, B... Read more

Incident date: Aug 20, 2026

All 4 tires exhibit signs of dry rot impacting the inner sidewalls of each tire. The outer layer is showing significant signs of sidewall separation. There is no sign of damage visible on the exterior side walls, if an inspection was not done on this date 08/20/26 the driver and others would have be... Read more

Incident date: Jul 29, 2026

Cylinder #2 misfire code repeatedly appearing even after changing spark plug and ignition coil. Took to the Ford dealer and it was determined it is an issue of coolant leakage in cylinder number 2. Ford dealer has diagnosed and performing engine replacement. Seems like this is a known problem that ... Read more

Incident date: Jul 16, 2026

1. What component or system failed or malfunctioned, and is it available for inspection upon request? The engine unexpectedly shut down while I was driving my 2024 Jeep Wrangler Rubicon at approximately 30 mph. There was no apparent cause for the shutdown. 2. How was your safety or the safety of o... Read more

Incident date: Jul 4, 2026

The contact owns a 2021 Ford Bronco Sport. The contact stated that the check engine warning light illuminated. There was an abnormal odor of exhaust fumes inside the vehicle. Initially, the driver thought it emerged from other vehicles; however, a passenger smelled exhaust fumes, became sick, and vo... Read more

Incident date: Jul 4, 2026

The contact owns a 2025 Kia Sorento Hybrid. The contact stated that while driving at approximately 55 MPH, the vehicle suddenly decelerated and failed to exceed 35 MPH before stalling and losing power. Emergency services were contacted and assisted with pushing the vehicle to the side of the road. T... Read more

Incident date: May 27, 2026

Sunroof leaks into cabin and there is no known solution for this model year 2023 BMW X5. It is my understanding that model years 2020-2023 all have this issue and a class action lawsuit is being reviewed. BMW has also issued a TSIB but there is no known recall. They will replace the seals under warr... Read more

Incident date: May 27, 2026

The contact owns a 2023 Ram 1500. The contact stated that while pulling out of a parking spot, the steering wheel was turned and the front ball joints snapped. The contact stated that the driver’s side ball joint side snapped, and the passenger’s side ball joint was bent under the pressure. Due ... Read more

Incident date: Jun 21, 2026

The rear brakes on my 2022 Nissan pathfinder are having unusual fast deterioration. I purchased the car at 13,000 miles and had to replace the rear brakes at 25,000 miles and now once again I am having to replace the rear brakes again at 52,000. This seems very odd since the front brakes have not ne... Read more

Incident date: Jun 21, 2026

The contact owns a 2014 Dodge Durango. The contact stated that while driving approximately 40 MPH, the front passenger’s side head restraint unexpectedly deployed and struck the front seat passenger in the back of the head. There was no crash or impact at the time of the failure. There was no warn... Read more

Incident date: Jun 21, 2026

The contact's son owns a 2014 Dodge Dart. The contact stated that the transmission was stuck in reverse(R) while the gear shifter was in park(P). The contact manually shifted the cable shifter out of park(P) from under the hood. There was no warning light illuminated. The contact stated that the shi... Read more

Incident date: May 6, 2026

Rough idle started at 11,400 miles. Took to GMC dealer near me and had thrust bearing clearance measured. Measured .0054"(within spec). They released truck back to me. 19,400 mile oil change found large metal(non magnetic) slivers in the filter media. I cut filters to check for issues due to known ... Read more

Incident date: May 4, 2026

I am reporting two unresolved safety-related defects on my 2021 Tesla Model Y (VIN: [XXX] ) that occurred following paid service at Tesla's League City Service Center on 04/16/2026 DEFECT 1 — COMPUTER AND SENSOR SYSTEM FAILURE: The vehicle's onboard computer cuts in and out intermittently. Sensors... Read more

Incident date: May 11, 2026

Vehicle primarily failed while parked at owner residence [XXX] and remained inoperable for approximately three weeks prior to tow to Cadillac dealership. The ignition key became trapped and could not be removed. A manual override release beneath the driver-side steering column was required to free ... Read more

Incident date: Sep 1, 2025

I am reaching out regarding an ongoing issue with my 2021 Chevrolet Blazer. The vehicle is experiencing a noticeable stutter or hesitation when shifting between second and third gear. In addition, there are instances where the vehicle accelerates unexpectedly or more aggressively than intended. Thi... Read more

Incident date: Sep 1, 2025

Incident date: Apr 18, 2026

I am reporting a safety defect involving my 2023 Kia Carnival SX Prestige. On June 6, 2025, I brought the vehicle to Yonkers Kia Service Center because of a strong gasoline odor. The dealership told me the fuel tank was swollen and that the vehicle was unsafe to drive. The vehicle remained at the de... Read more

Incident date: Apr 18, 2026

Incident date: Apr 1, 2026

The instrument cluster display malfunctioned. The odometer and MPG (fuel economy) display are affected. The component is available for inspection upon request. If the fuel gauge becomes affected by this malfunction, the driver would be unable to monitor fuel levels, risking unexpected engine stallin... Read more

Incident date: Apr 23, 2026

For approximately 3 years, this vehicle has experienced repeated unintended transmission downshifts at freeway speeds without warning or driver input. The vehicle can suddenly and violently downshift at highway speed, creating a serious risk of loss of control, skidding, rear impact, or crash. This... Read more

Incident date: Feb 18, 2026

The contact owns a 2019 Ford Flex. The contact received notification of NHTSA Campaign Number: 24V951000 (BACK OVER PREVENTION); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The man... Read more

Incident date: Apr 7, 2026

See attached document for complaint.

Incident date: Apr 11, 2026

When Tpms light comes on, all safety features including cruise control become disabled. Lane assist and collision safety features become disabled. On top of that, I have had Honda look at my rear end after they replaced a rear upper control arm after being in a ditch and at 246,000 current miles, I... Read more

Incident date: Apr 11, 2026

Incident date: Aug 15, 2025

My engine completely died, and a complete loss of propulsion happened. My safety was put at risk due to no power while on busy highway. This problem with L87 engines (6.2) has been reported extensively. The vehicle was inspected for GM Program # N252494000, NHTSA 25V74 for above issues and was ins... Read more

Incident date: Jul 24, 2025

The contact owns a 2013 Kia Optima. The contact stated that while driving 75 MPH, the vehicle lost motive power. The accelerator pedal was depressed; however, the vehicle eventually stalled on the side of the road. The key, battery, oil, and engine warning lights were illuminated. There was an abnor... Read more

Incident date: Mar 9, 2026

Hi, I have a 2020 Honda Pilot that showed signs of stalling. AutoNation Honda Thornton Road checked (03/07/2026) and reported I need an INJECTOR KIT replaced and SDC GDI -INTAKE THROTTLE BODY FURL INJECTOR SERVICE. All warning lights were on intermittently (on all day then nothing for 2-3 days then... Read more

Incident date: Feb 19, 2026

The contact owns a 2022 Porsche Cayenne. The contact stated that the message that the mileage could not be recorded was intermittently displayed while driving. Additionally, the contact stated that the rearview camera was intermittently inoperable after shifting to reverse(R). The vehicle was taken ... Read more

Incident date: Jan 7, 2026

The contact owns a 2025 Ram 2500. The contact was made aware that the VIN was associated with NHTSA Campaign Number: 26V059000 (Exterior Lighting, Electrical System); however, the part to do the recall repair was not yet available. The contact stated that several dealers were contacted. The vehicle ... Read more

Incident date: Jan 7, 2026

The contact owns a 2024 Jeep Wrangler 4XE. The contact received notification of NHTSA Campaign Number: 25V766000 (Engine); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact s... Read more

Incident date: Jan 7, 2026

Incident date: Feb 7, 2026

The brake system, specifically the master brake cylinder and/or associated brake system components, failed or malfunctioned. The defect results in a sudden loss of braking performance without warning. Yes, the vehicle is available for inspection upon request. It has remained in the continuous posses... Read more

Incident date: Jan 7, 2026

exactly one year after purchase and with approximately 18,000 miles on the vehicle — the original factory-installed front right tire catastrophically failed while I was driving under normal conditions. The tire blew out suddenly with complete sidewall separation, causing loss of vehicle control. T... Read more

Incident date: Jan 7, 2026

Incident date: Dec 1, 2025

The digital display (including speedometer, fuel gauge, warning systems, odometer, and speedometer) remains blank for extended periods of time, at least once greater than 30min, while driving. Manufacturer recall in effect for greater then 4 months with no fix identified.

Incident date: Oct 28, 2025

OIL CONSUMPTION. I HAVE ALREADY PAID $2,500 TO THE CHEVY DEALERSHIP WHERE I LIVE TO REPLACE THE TIMING CHAIN, AND IT'S DOING THE SAME THING AGAIN. I'M HAVING TO CONTINUOUSLY PUT UP TO THREE QUARTS OF OIL IN IT EVERY 2 TO 3 WEEKS. THE DEALERSHIP SAYS THERE IS NO BULLETIN ON MY VIN NUMBER. I'VE ONLY H... Read more

Incident date: Dec 13, 2025

I have never been contacted about this recall either. This is the second complaint form I have filed. First one filed 12/28/2019.

Incident date: Dec 13, 2025

My Mercedes has never been recalled for the Takata air bag recall and now I have a warning about the SRS, Supplemental Restraint System. What ever happened to vehicles having replacement air bags??

Incident date: Dec 13, 2025

I filed and submitted my paragraph yesterday and have not heard a word. My son was in the back seat when it happened and he is extremely traumatized in getting back into a vehicle. My car was purchased in 2023 and it is a 2024 and is non drivable due to the engine explosion while driving in 14 degre... Read more

Fire 1 injured

Incident date: Dec 3, 2025

The contact owns a 2016 Ford Edge. The contact stated that while driving approximately 45 MPH, the contact depressed the brake pedal, and the brake pedal felt spongy and depressed to the floorboard. There was no warning light illuminated. The contact was able to stop and exit the vehicle. The contac... Read more

Incident date: Nov 17, 2025

Catastrophic engine failure after taking it in for the April 2025 recall. Complete engine replacement needed

Incident date: Nov 17, 2025

Message flashing "service power steering, hill climb and ESC" appears on an average of once a month for the last few years. No loss of control yet, but it came on three starts in a row for the first time. Usually goes away with a second start. Making an appointment with a dealer (Putnam) in Burli... Read more

Showing 50 of 202 complaints.

NHTSA Safety Ratings, 2021 CHEVROLET BLAZER

2021 Chevrolet Blazer SUV AWD

Category	Rating
Overall Rating	5 / 5 ★★★★★
Frontal Crash	5 / 5 ★★★★★
Frontal Crash, Driver	5 / 5 ★★★★★
Frontal Crash, Passenger	4 / 5 ★★★★☆
Side Crash	5 / 5 ★★★★★
Side Crash, Driver	5 / 5 ★★★★★
Side Crash, Passenger	5 / 5 ★★★★★
Rollover	4 / 5 ★★★★☆
Rollover Risk	14.7%

Safety Technology

Feature	Status
Electronic Stability Control	Standard
Forward Collision Warning	Optional
Lane Departure Warning	Optional

Source: NHTSA 5-Star Safety Ratings Program. Ratings are based on crash tests conducted by the National Highway Traffic Safety Administration.

Technical Service Bulletins, 2021 CHEVROLET BLAZER

896 manufacturer communications from 444 unique bulletins. TSBs describe known problems and recommended fixes from the manufacturer.

Most Affected Components

Component	Bulletins
350000 EQUIPMENT	141
060000 ENGINE AND ENGINE COOLING	117
110000 ELECTRICAL SYSTEM	107
100000 POWER TRAIN	70
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL	51
200000 WHEELS	27
060000 ENGINE (PWS)	27
280000 BACK OVER PREVENTION	22

200000 WHEELS

This service bulletin provides information for dealers/technicians on Tire Radial Force Variation (RFV).

110000 ELECTRICAL SYSTEM

This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.

350000 EQUIPMENT

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

110000 ELECTRICAL SYSTEM

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

350000 EQUIPMENT

This bulletin updates the position of General Motors on refinishing aluminum wheels. GM has determined that wheel refinishing under warranty will no longer be performed.

200000 WHEELS

This bulletin updates the position of General Motors on refinishing aluminum wheels. GM has determined that wheel refinishing under warranty will no longer be performed.

110000 ELECTRICAL SYSTEM

This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.

110000 ELECTRICAL SYSTEM

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

350000 EQUIPMENT

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

118000 ELECTRICAL SYSTEM:SOFTWARE

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

110000 ELECTRICAL SYSTEM

This Preliminary information communicates a vehicle may come to the dealer with a complaint of no start, stalling, rough idle, no acceleration, loss of power, erratic shifting, fuel gauge inoperative, MIL illuminated with various codes stor

117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

This service bulletin provides repair information to correct various functional concerns of the Instrument Cluster and DTC U0155.

350000 EQUIPMENT

This service bulletin provides repair information to correct various functional concerns of the Instrument Cluster and DTC U0155.

110000 ELECTRICAL SYSTEM

This service bulletin provides repair information to correct various functional concerns of the Instrument Cluster and DTC U0155.

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This service bulletin provides information on submitting quality Photos of Various Vehicle Concerns to the GM Technical Assistance Center (TAC).

110000 ELECTRICAL SYSTEM

353400 EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

This service bulletin provides repair information to correct a customer concerns of Radio Software issues.

350000 EQUIPMENT

This service bulletin provides repair information to correct a customer concerns of Radio Software issues.

110000 ELECTRICAL SYSTEM

This service bulletin provides repair information to correct a customer concerns of Radio Software issues.

350000 EQUIPMENT

This technical bulletin provides a procedure replace the tappet that is located on the fuel door.

081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY

This technical bulletin provides a procedure replace the tappet that is located on the fuel door.

162600 STRUCTURE:BODY:HATCHBACK/LIFTGATE

This Preliminary information communicates information to help diagnose inoperative rear liftgate logo.

060000 ENGINE AND ENGINE COOLING

This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels shou

350000 EQUIPMENT

This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.

350000 EQUIPMENT

This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).

110000 ELECTRICAL SYSTEM

120000 EXTERIOR LIGHTING

This Preliminary information communicates to dealers? information related to a Malfunction Indicator Lamp (MIL) Illuminated due to a U0672 setting. Advises the technician to perform Electric Engine Coolant Pump connection inspections. To cl

070000 FUEL SYSTEM, GASOLINE

060000 ENGINE AND ENGINE COOLING

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This service bulletin provides information on All hazmat parts being returned to the Warranty Parts Center (WPC) must be shipped using Central Transport. Hazardous materials should never be sent by air transportation to the WPC.

030000 BRAKES (PWS)

This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel pressure situation.

070000 FUEL SYSTEM, GASOLINE

This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel pressure situation.

980000 UNKNOWN OR OTHER

This warranty administration bulletin provides information regarding the field action courtesy transportation policy.

060000 ENGINE AND ENGINE COOLING

This engineering information (EI Lite) is requesting technicians use the FPR App process in regard to finding coolant leaking around the Coolant Control Valve (CCV).

110000 ELECTRICAL SYSTEM

060000 ENGINE AND ENGINE COOLING

This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.

260000 FORWARD COLLISION AVOIDANCE

This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braking has been set to the "Alert" setting. This is normal when the FAB has been set to "Alert".

070000 FUEL SYSTEM, GASOLINE

This informational bulletin explains to the tech on where to look for a possible concern with the rockers causing the MIL to illuminate.

060000 ENGINE AND ENGINE COOLING

This informational bulletin explains to the tech on where to look for a possible concern with the rockers causing the MIL to illuminate.

060000 ENGINE AND ENGINE COOLING

This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.

063100 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.

070000 FUEL SYSTEM, GASOLINE

This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.

100000 POWER TRAIN

This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle

060000 ENGINE AND ENGINE COOLING

353000 EQUIPMENT:ELECTRICAL

This Preliminary information communicates an issue where the vehicles wireless charger no longer works with certain ISO updates on Apple 15 phones and advises customer to update their phone to the lastest ISO update.

350000 EQUIPMENT

This service bulletin provides information on the EL-52800 Diagnostic & Charge Battery Station (DCBS) a?? FAQs.

110000 ELECTRICAL SYSTEM

This service bulletin provides information on the EL-52800 Diagnostic & Charge Battery Station (DCBS) a?? FAQs.

350000 EQUIPMENT

This service bulletin assists technicians in setting up PicoScope hardware/software to monitor CAN bus traffic (voltage patterns) to aid Technical Assistance (TAC) and Field Service Engineers (FSEs) in diagnosing electrical issues present o

110000 ELECTRICAL SYSTEM

060000 ENGINE AND ENGINE COOLING

This service bulletin provides Information on Purge Pump Part Replacement and Purge pump Part Number Interchangeability.

162600 STRUCTURE:BODY:HATCHBACK/LIFTGATE

This Preliminary information communicates information to help diagnose inoperative rear liftgate logo.

100000 POWER TRAIN

This service bulletin provides a procedure to correct a customer concern of Shudders or Shakes at Low Speeds.

160000 STRUCTURE

This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.

353600 EQUIPMENT:ELECTRICAL:INFOTAINMENT

This PI states that a vehicle may exhibit a concern of the cross traffic alert indicators not displaying on the radio screen. While this is a customer dissatisfier, it does not pose a safety concern due to the fact that the customer will st

100000 POWER TRAIN

This PI bulletin advises the technician on the proper way to install the pistons in an engine.

060000 ENGINE AND ENGINE COOLING

This PI bulletin advises the technician on the proper way to install the pistons in an engine.

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This Preliminary Information communication provides information to the technician about vibration complaints that are one of the most challenging complaints to accurately diagnose and repair. Technician will need to use Pico Oscilloscope Di

120000 EXTERIOR LIGHTING

This informational bulletin provides information for dealers/technicians on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage.

060000 ENGINE AND ENGINE COOLING

This informational bulletin advises the tech to validate if oil is leaking into the cooling system and to test and verify were to leak is coming from before replacing all the parts that wouldn't apply to the repair.

070000 FUEL SYSTEM, GASOLINE

This Preliminary information communicates a possible issue with the active fuel management rockers causing a misfire and the correction for this concern.

110000 ELECTRICAL SYSTEM

This preliminary information (PI) provides information om Service Programming System (SPS) Error Codes (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961).

100000 POWER TRAIN

This Preliminary information communicates the potential for condensation to freeze up inside the Crankcase Pressure Sensor causing dtc P04FB to set.

120000 EXTERIOR LIGHTING

This Preliminary information communicates information for Intellibeam headlamp inoperative and to inspect the low speed data line.

121000 EXTERIOR LIGHTING:HEADLIGHTS

This Preliminary information communicates information for Intellibeam headlamp inoperative and to inspect the low speed data line.

110000 ELECTRICAL SYSTEM

This Preliminary information communicates information for terminal concerns at X203

010000 STEERING

This service bulletin provides a procedure to add deadener to the batter tray bracket to correct customer concerns of a Service Engine Soon (SES), Reduced Power, Service Brake, Reduced Steering and/or Stabilitrak Message Illuminated on DIC,

251000 ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC)

110000 ELECTRICAL SYSTEM

030000 BRAKES (PWS)

This technical bulletin provides repair information to correct a customer concern of hearing front brake grind/groan noise after sitting overnight.

350000 EQUIPMENT

This technical bulletin provides repair information to correct a customer concern of hearing front brake grind/groan noise after sitting overnight.

110000 ELECTRICAL SYSTEM

This technical bulletin provides repair information to correct a customer concern of hearing front brake grind/groan noise after sitting overnight.

350000 EQUIPMENT

This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. The J-35616-64B is the latest test probe released for checking

110220 ELECTRICAL SYSTEM:HAND HEATER:WIRING HARNESS

This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.

980000 UNKNOWN OR OTHER

This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.

105300 POWER TRAIN:DRIVELINE:DRIVESHAFT

This informational bulletin provides Information on Wheel Drive Shaft Replacement and Nut Removal Damage.

100000 POWER TRAIN

This informational bulletin provides Information on Wheel Drive Shaft Replacement and Nut Removal Damage.

353650 EQUIPMENT:ELECTRICAL:WIRELESS CHARGER/CRADLE

This Preliminary information communicates an issue where the vehicles wireless charger no longer works with the latest ISO update on Apple 15 phones.

060000 ENGINE AND ENGINE COOLING

This service bulletin provides a repair procedure to correct a customer concern of Coolant and/or Oil Leak, Malfunction Indicator Lamp (MIL) Illuminateda??.

353000 EQUIPMENT:ELECTRICAL

This Preliminary information communicates an issue where the vehicles wireless charger no longer works with the latest ISO update on Apple 15 phones.

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed Accessories.

350000 EQUIPMENT

This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed Accessories.

350000 EQUIPMENT

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

110000 ELECTRICAL SYSTEM

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

353650 EQUIPMENT:ELECTRICAL:WIRELESS CHARGER/CRADLE

This Preliminary information communicates an issue where the vehicles wireless charger no longer works with the lastest ISO update on Apple 15 phones.

060000 ENGINE AND ENGINE COOLING

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

060000 ENGINE AND ENGINE COOLING

This informational bulletin provides Information on Purge Pump Part Replacement and Purge Part Number Interchange.

353600 EQUIPMENT:ELECTRICAL:INFOTAINMENT

This Preliminary information communicates an issue where the vehicles wireless charger no longer works with the lastest ISO update on Apple 15 phones.

353610 EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE

This Preliminary information communicates an issue where the vehicles wireless charger no longer works with the lastest ISO update on Apple 15 phones.

060000 ENGINE AND ENGINE COOLING

This service bulletin provides diagnostic aid information/procedures to perform inspections to determine if the engine needs to be replaced as opposed to just internal parts for knocking, rattle, squeak and/or squeal type noises from engine

100000 POWER TRAIN

This technical bulletin provides repair information to correct a customer concern of Rear Driveline Module Audible Noise Heard Between 20-70MPH.

110000 ELECTRICAL SYSTEM

This technical bulletin provides repair information to correct a customer concern of hearing front brake grind/groan noise after sitting overnight.

030000 SERVICE BRAKES, HYDRAULIC

This technical bulletin provides repair information to correct a customer concern of hearing front brake grind/groan noise after sitting overnight.

110000 ELECTRICAL SYSTEM

This technical bulletin provides repair information to correct a customer concern of an Intermittent Check Engine Lamp On with Various DTCs Set.

110000 ELECTRICAL SYSTEM

This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.

110000 ELECTRICAL SYSTEM

This service bulletin advises the tech that the rotational Clicking Noise Heard After Engine Shut Down may be normal characteristics of the vehicle.

Showing 100 of 896 bulletins.

NHTSA Safety Investigations, CHEVROLET BLAZER

Investigations opened by NHTSA into potential safety defects. These are separate from recalls and may or may not result in a recall.

RQ, Closed , Model Year: 2000

HAZARD LIGHT SWITCH FAILURE

ON NOVEMBER 30, 2001, GENERAL MOTORS (GM) CONDUCTED SAFETY RECALL 01V-364 FOR THE SUBJECT VEHICLES BUILT BETWEEN SEPTEMBER 16, 1999 AND AUGUST 28, 2001 TO REMEDY A DEFECTIVE HAZARD SWITCH THAT WOULD CAUSE A LOSS OF HAZARD AND STOP LAMP ILLUMINATION.THE HAZARD SWITCH IS CONTAINED WITHIN THE VEHICLE M... Read more

RQ, Closed , Model Year: 1998

FRONT CONTROL ARM BALL JOINTS

SEE ATTACHED PAGE.

EA, Closed , Model Year: 1992

FRONT SEAT RECLINER BOLT

There is no summary currently available

PE, Closed , Model Year: 2000

LOSS OF STOP LAMP ILLUMINATION

EA, Closed , Model Year: 1996

UPPER AND LOWER CONTROL ARM BALL JOINT

There is no summary currently available

RQ, Closed , Model Year: 1992

FRONT SEAT RECLINER BOLT FAILURE

PE, Closed , Model Year: 1995

LOSS OF POWER ASSIST BRAKING

CONSUMERS ALLEGE A PARTIAL LOSS OF BRAKING ABILITY

PE, Closed , Model Year: 1996

UPPER CONTROL ARM BALL JOINT BREAKAGE

AN UPPER CONTROL ARM BALL JOINT FAILS, RESULTING IN THE FRONT SUSPENSION COLLAPSING ON THE FAILED SIDE.

EA, Closed , Model Year: 1995

WINDSHIELD WIPER FAILURE

There is no summary currently available

PE, Closed , Model Year: 1995

WINDSHIELD WIPER

DURING THIS PRELIMINARY EVALUATION, OVER 400 ADDITIONAL COMPLAINTS WERE FURNISHED BY GM.IN ADDITION GM REPORTED OVER 3000 WIPER SYSTEM WARRANTY REPAIRS ON THE SUBJECT VEHICLES.

EA, Closed , Model Year: 1996

STEERING SHAFT SEPARATIONS

COUPLING BOLTS, JOINING THE STEERING SHAFT, MAY SEPARATE.IN SOME CASES, TOTAL UNFORESEEN, LOSS OF STEERING CONTROL MAY RESULT.

EA, Closed , Model Year: 1996

SEAT BELT WEBBING SEPARATION

NHTSA'S NEW CAR ASSESSMENT PROGRAM (NCAP) TESTED A 1997 CHEVROLET S-10 EXTENDED CAB PICKUP EQUIPPED WITH A DRIVER-SIDE AIR BAG.THE FRONT PASSENGER SEAT BELT WAS COMPLETELY CUT DURING THE TEST.

PE, Closed , Model Year: 1994

ALLEGED FAILURE OF REAR LEAF SPRINGS

BREAKAGE OF A LEAF SPRING MAY ALLOW PARTIAL COLLAPSE OF THE REAR SUSPENSION AND INCREASE THE POTENTIAL FOR LOSS OF VEHICLE CONTROL.

EA, Closed , Model Year: 1991

REAR SEAT BELT FAILURE

COMPLAINTS INDICATE THAT THE REAR SEATBELT BUCKLES DO NOT WORK, WHICH PREVENTS USAGE OF THE BELTS.

PE, Closed , Model Year: 1994

BRAKE PEDAL SEPARATION FROM PIVOT ARM

There is no summary currently available

EA, Closed , Model Year: 1991

ABS BRAKING SYSTEM

THIS INVESTIGATION RESULTED IN A SAFETY RECALL, 99V-193, AND A SERVICE CAMPAIGN, 99I-006.

EA, Closed , Model Year: 1989

ENGINE COMPARTMENT FIRES

AN ALLEGED MALFUNCTION IN THE ATLERNATOR RESULTING IN ENGINE COMPARTMET FIRES.

PE, Closed , Model Year: 1989

FIRE IN DASH/INSTRUM.CLSTR

There is no summary currently available

PE, Closed , Model Year: 1991

ABS BRAKING SYSTEM FAILS

There is no summary currently available

DP, Closed , Model Year: 1987

FUEL SYSTEM FIRES

EA, Closed , Model Year: 1989

HIGH IDLE FLARE

There is no summary currently available

PE, Closed , Model Year: 1989

HIGH IDLE FLARE

There is no summary currently available

PE, Closed , Model Year: 1989

HEADLIGHT SWITCH FAILURE

There is no summary currently available

PE, Closed , Model Year: 1988

STEERING DAMPER SEPARATION

There is no summary currently available

EA, Closed , Model Year: 1983

REAR AXLE SHAFT

There is no summary currently available

PE, Closed , Model Year: 1983

REAR AXLE FAILURE

There is no summary currently available

PE, Closed , Model Year: 1983

ELECT. FAILURES/FIRES

SUMMARY OF INFORMATION FROM THE MANUFACTURER: FORD HAS SUBMITTED 40 OWNERCOMPLAINTS WHICH ALLEGE IN-DASH FIRES. IT DOES NOT BELIEVE THAT THECOMPLAINTS INDICATE A DEFECT NOR ARE THEY SAFETY RELATED.ANALYSIS:A REVIEW OF THE COMPLAINTS WAS CONDUCTED.VARIOUS COMPONENTSWERE ALLEGED TO HAVE BEEN THE SOURC... Read more

CHEVROLET BLAZER - All Years Overview

Complete safety history for the CHEVROLET BLAZER across all model years (1969, 2025).

124 Total Recalls

11,285 Total Complaints

27 Investigations

1,120 Reported Crashes

275 Reported Fires

76 Reported Deaths

CHEVROLET BLAZER - Year by Year

Compare recalls and complaints across model years. Click any year to see full details.

Year	Recalls	Complaints
2026	0	1	View
2025	1	43	View
2024	1	71	View
2023	2	66	View
2022	1	81	View
2021 (current)	1	202
2020	3	358	View
2019	2	296	View
2008	0	5	View
2007	0	11	View
2006	0	20	View
2005	0	18	View
2004	1	67	View
2003	1	103	View
2002	2	301	View
2001	3	464	View
2000	4	885	View
1999	0	612	View
1998	3	1,025	View
1997	7	1,098	View
1996	11	1,579	View
1995	11	1,707	View
1994	7	774	View
1993	7	616	View
1992	6	337	View
1991	7	267	View
1990	4	42	View
1989	4	47	View
1988	4	45	View
1987	3	38	View
1986	2	21	View
1985	2	35	View
1984	3	10	View
1983	4	8	View
1982	3	2	View
1981	3	1	View
1980	1	1	View
1979	1	1	View
1978	1	2	View
1977	1	2	View
1976	1	1	View
1975	1	0	View
1974	2	0	View
1973	1	1	View
1972	1	0	View
1969	1	0	View

Other CHEVROLET Models

Model	Recalls	Complaints
SUBURBAN	246	10,458	View
TAHOE	240	12,622	View
MALIBU	216	29,080	View
SILVERADO 1500	200	22,534	View
CORVETTE	187	6,308	View
CAMARO	179	4,298	View
SILVERADO	159	10,964	View
SILVERADO 3500	152	1,409	View

Vehicle Safety

Consumer Safety

Infrastructure

Public Health

2021 CHEVROLET BLAZER

Complaint Statistics

Top Reported Components

NHTSA Safety Ratings, 2021 CHEVROLET BLAZER

Safety Technology

Technical Service Bulletins, 2021 CHEVROLET BLAZER

Most Affected Components

NHTSA Safety Investigations, CHEVROLET BLAZER

CHEVROLET BLAZER - All Years Overview

CHEVROLET BLAZER - Year by Year

Other CHEVROLET Models