2021 Chevrolet BLAZER: complaints, problems and recalls
Explore the records behind recurring owner reports.
Key facts
130 owner complaints analyzed
1 distinct recall campaigns
35,490 mi median reported failure mileage
Scope: 2021 model year. Data snapshot: . 24 complaints include usable failure mileage.
Most common problems
Engine is the most frequently named component, appearing in 39 of 130 complaints (30.0%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Steering behavior | 31 | 23.8% |
| Braking behavior | 24 | 18.5% |
| Electrical and battery issues | 21 | 16.2% |
| Fuel system concerns | 13 | 10.0% |
| Transmission and shifting | 11 | 8.5% |
| Engine operation | 7 | 5.4% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Engine | 39 |
| Electrical System | 37 |
| Unknown Or Other | 20 |
| Power Train | 18 |
| Service Brakes | 18 |
| Fuel/Propulsion System | 17 |
| Steering | 15 |
| Forward Collision Avoidance: Automatic Emergency Braking | 4 |
Engine: 39; Electrical System: 37; Unknown Or Other: 20; Power Train: 18; Service Brakes: 18; Fuel/Propulsion System: 17; Steering: 15; Forward Collision Avoidance: Automatic Emergency Braking: 4
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 9 |
| 25,000 to 49,999 | 6 |
| 50,000 to 74,999 | 4 |
| 75,000 to 99,999 | 4 |
| 100,000 to 149,999 | 1 |
| 150,000 and above | 0 |
Under 25,000: 9; 25,000 to 49,999: 6; 50,000 to 74,999: 4; 75,000 to 99,999: 4; 100,000 to 149,999: 1; 150,000 and above: 0
Under 25,000 miles has the most reports with usable mileage (9). 106 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2021 | 11 |
| 2022 | 4 |
| 2023 | 12 |
| 2024 | 14 |
| 2025 | 60 |
| 2026 | 29 |
2021: 11; 2022: 4; 2023: 12; 2024: 14; 2025: 60; 2026: 29
Pattern summary
Engine leads the component reports. Steering behavior appears in 31 complaint narratives. Braking behavior appears in 24 complaint narratives. Electrical and battery issues appears in 21 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Examples from the source records
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11403124 · 2021-03-15 (March 15, 2021)
WHILE DRIVING THE THE WHOLE DASH GOES BLANK FOR A FEW SECOND, THEN THEN IT REBOOTS AND EVENTUALLY MOST OF IT COMES BACK. HOWEVER, IT DID THIS REPEAT THIS CYCLE AND CANNOT TELL IF MY SIGNALS ARE WORKING OR WHAT MY SPEED IS. I HAVE A VIDEO OF IT HAPPENING. THE CAR HAS 2,700 MILES.. I AM TAKING TO A DEALERSHIP
Owner-reported narrative. 2,700 miles reported. Look up ODI 11403124 at NHTSA ↗
Owner report 11405457 · 2021-03-29 (March 29, 2021)
HEADLIGHTS FLASH OR STAY ON EITHER LOW OR HI BEAM,HATCH OPENS ITSELF, AWD POPING, NOISE IN DASH, SHIFTING INTO AWD BY ITSELF, TRANSMISSION NOT SHIFTING CORRECTLY . THERE IS NO PATTERN AND IT THROWS NO CODES. MAJOR ELECTRIC PROBLEMS. THE KEYLESS ENTRY PAD DIDN'T WORK THE DAY I PURCHASED MY CAR. HAD A NEW ONE INSTALLED 3 PROGRAMS AND NOW ALL THIS STARTED.
Owner-reported narrative. Look up ODI 11405457 at NHTSA ↗
Owner report 11415195 · 2021-05-04 (May 4, 2021)
OCCASIONAL GRINDING NOISE WHEN BRAKING
Owner-reported narrative. 90 miles reported. Look up ODI 11415195 at NHTSA ↗
Owner report 11416123 · 2021-05-11 (May 11, 2021)
OCCASIONAL GRINDING NOISE WHEN BRAKING' GRINDING NOISE WHEN VEHICLE HAD LESS THAN 400 MILES
Owner-reported narrative. 400 miles reported. Look up ODI 11416123 at NHTSA ↗
Owner report 11422910 · 2021-06-30 (June 30, 2021)
Vehicle only has 700 miles and there is a loud brake grinding noise when slowly down at speeds of around 40 MPH.
Owner-reported narrative. Look up ODI 11422910 at NHTSA ↗
Owner report 11422911 · 2021-06-30 (June 30, 2021)
Vehicle now has about 1200 and when driving, the instrument cluster panel that digital shows your speed, odometer and other information on my vehicle went blank. It is just a black screen. When this happened, it caused the steering wheel controls for radio volume and turning the station to not work. With this, I have no safety features like lane assist now and can't tell my tire pressure.
Owner-reported narrative. Look up ODI 11422911 at NHTSA ↗
Owner report 11423591 · 2021-07-06 (July 6, 2021)
The contact owns a 2021 Chevrolet Blazer. The contact stated that while stopped at a railroad track, the vehicle independently stopped and went into crash mode while on the railroad tracks upon acceleration. The contact shifted the vehicle into reverse and then into park. Once the vehicle was placed into drive, the vehicle resumed normal operation. The vehicle was taken to a dealer where they replaced an unknown module and performed a software update. Despite the repair, the contact stated that the failure persisted. The contact also stated tha…
Owner-reported narrative. 4,400 miles reported. Look up ODI 11423591 at NHTSA ↗
Owner report 11425003 · 2021-07-15 (July 15, 2021)
The brakes are noisy (like metal to metal, worn out) and the brake pedal is soft. Took the vehicle into the dealer (only 1,000 miles on odometer) they say GM is aware of a problem. How many people will die before this problem is fixed? The problem isn’t corrected, and exists today.
Owner-reported narrative. Look up ODI 11425003 at NHTSA ↗
Recall history
1 distinct campaigns affect this selection. Announcement dates below are different from vehicle model years. A campaign may cover multiple years.
20V811000 · Seat Belts:Critical Fasteners | Seat Belts
Reported: 2020-12-23 (December 23, 2020)
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 may have been used at one or more fastening locations to secure the seat belts to the vehicle. If an incorrect bolt was used, the seat belt may not be properly attached to the vehicle.
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 recall is N202322230.
NHTSA campaign record ↗