NHTSA Owner Complaint Log
This page lists owner-reported complaints filed with NHTSA for the 2021 Chevrolet Blazer. Complaints are unverified consumer reports submitted to NHTSA and do not by themselves prove a defect or defect rate.
I had just purchased my vehicle around December 9 2021. On around Decmeber 16, 2021 around 8 am I was driving on the highway 65 miles an hour. & the vehicle came to a complete stop. It kepts saying my fuel tank was empty. I quickly turned off the vehicle & tried turning it on & it did. I dropped it off at the dealership & it came back it was fuel pump. It was supposibly fixed. Comes January 26 vehicle did the same thing gettinf out of work. I got the vehicle back February 17. & today February 19, 2022 the truck did the same thing.
When I am accelerating it seems like my car hesitates to get up to speed, at times feels like it is slipping to get traction. I put my car in AWD and didn't seem to notice the issue, when put back into 2WD, the issue happens, it is not an every time thing, but enough that my husband, who doesn't drive my car a lot noticed it and a coworker who has the same year as mine also has the issue. Of course when I took it into the dealership to have it looked at the car didn't do it, so as far as they are concerned there is nothing wrong with it, which is NOT the case. My husband has a 2020 Blazer and it doesn't have this issue. I understand that it is a different year, but if it has the same engine and transmission I would think there shouldn't be much of a difference in how they both drive. It's very frustrating to spend this much on a vehicle that I leased in May of 2020 and it has been in twice for this issue and the parking break issue (which GM's reasoning as to why this turns on by itself and does not turn off is BS, there is still an issue with this as well) and when serviced there is never anything wrong with it. So could it be an issue with the transmission, traction control or possibly the engine?
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.
Car purchased on 5/19/21 with 117 miles on it. It now has 1153 miles and the brakes are grinding. The Chevy dealership states that it needs replacement brake pads, but they are on backorder. I have been uncomfortable driving the car after the dealership said it needed new brake pads and have not driven the car for two days. I can get by another four days, but I have a Dr's appointment this coming Wednesday that requires a 50 mile trip.
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.
Vehicle only has 700 miles and there is a loud brake grinding noise when slowly down at speeds of around 40 MPH.
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 that while driving at 40 mph, the traction control warning light illuminated on the instrument panel as the steering power was reduced. The contact took the vehicle back to the same dealer and the mechanic replaced the rear differential, clutch, and control module. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 4,400
OCCASIONAL GRINDING NOISE WHEN BRAKING
OCCASIONAL GRINDING NOISE WHEN BRAKING' GRINDING NOISE WHEN VEHICLE HAD LESS THAN 400 MILES
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
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.
The contact owns a 2021 Chevrolet Blazer. The contact stated that oil was leaking from the vehicle. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was diagnosed that the cam shaft carrier needed to be replaced. The vehicle was repaired, but the failure recurred. The vehicle was taken to an independent mechanic, who determined that there was a separation in the transmission, oil cooler line, valve, and hoses that needed to be replaced. The vehicle was not repaired. The manufacturer was contacted and submitted a complaint. The failure mileage was approximately 63,000.
The contact owns a 2021 Chevrolet Blazer. The stated that upon depression of the brake pedal, an abnormal grinding noise would emit from the vehicle without warning. When the contact notified the dealer of the failure, he was informed that they were aware of the failure however, there was no fix for the failure. The contact then received a letter from the dealer where he was informed that a repair was under development. Recently, the contact called the dealer for an update and was informed that no update was available and that the repair remained unavailable. The manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 429. The VIN was not available.
Data synced from NHTSA on May 4, 2026