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Chevrolet · NHTSA safety record

2020 Chevrolet Blazer

Every safety complaint, recall and defect investigation the US government holds on this vehicle.

Owners have filed 219 safety complaints about the 2020 Chevrolet Blazer with the US government. Of those, 5 describe a crash, 7 people were injured and no death is recorded. 3 recall campaigns are open against it.

The most complained-about system is the electrical system, named in 76 complaints, 35% of the total. The typical failure was reported at 49,500 miles, the median across the 32 complaints that gave an odometer reading.

Compiled from NHTSA's complaint, recall and investigation files · Covers August 2020 to September 2026 · How this is counted

What is on file

219 complaints on file

219

Complaints

5

Describe a crash

0

Mention fire

7

People injured

0

Deaths

A complaint is an unverified account by the person who filed it, not a finding of fault. One complaint is one ODI number, which is how NHTSA counts them.

A recall is the manufacturer conceding a defect, and the repair is free. Whether one covers your particular car is a question only its VIN can answer, because a campaign covers a production range rather than a model year.

Which system owners named

Complaints naming each system
ELECTRICAL SYSTEM 76 · 35%
POWER TRAIN 73 · 33%
ENGINE 68 · 31%
UNKNOWN OR OTHER 57 · 26%
STEERING 41 · 19%
SERVICE BRAKES 10 · 5%
LANE DEPARTURE 5 · 2%
FUEL/PROPULSION SYSTEM 4 · 2%
SUSPENSION 4 · 2%
VEHICLE SPEED CONTROL 4 · 2%
AIR BAGS 3 · 1%
ENGINE AND ENGINE COOLING 3 · 1%
0 31 62

Red marks a system with a recall campaign against it. One complaint can name several systems, so these add up to more than 219.

When the complaints arrived

By the year NHTSA received them

By the year NHTSA received them, which is not the year the failures happened. They peaked in 2025 at 84.

92 69 46 23
20 21 22 23 24 25 26

This is the year the complaint was filed, not the year the failure happened. The range runs from 2020 to 2026, the last of them a part year, which is why its column is drawn faint.

Crash test ratings

NHTSA New Car Assessment Program

NHTSA crashes a car into a barrier and a pole and measures what happens to the dummies inside. This is what it awarded the 2020 Chevrolet BLAZER, and it is a separate question from what owners report going wrong later.

Test SUV AWD SUV FWD
Overall
Frontal crash
Frontal, driver
Frontal, passenger
Side crash
Side barrier
Side pole
Rollover
Chance of rollover 14.7% 15.5%
Stability control standard Forward collision warning standard Lane departure warning standard

A rating belongs to a tested body style and drivetrain, not to the model as a whole, which is why more than one is listed. A dash means NHTSA did not rate that test for this vehicle.

Recall campaigns

3 on file

TIRES

21V115000 · February 25, 2021

The defect
General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT4, XT5, Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, Traverse, GMC Yukon, Yukon XL, 2018-2021 Chevrolet Express, GMC Savana, 2019-2020 Chevrolet Blazer, Silverado 1500, GMC Acadia, Sierra 1500, and certain Continental tires sold to the aftermarket for various model year 2018-2021 vehicles. The affected tires were cured for too long during production.
The risk
Over cured tires may develop a break in the sidewall resulting in sudden air loss or a belt edge separation which could lead to a tread/belt loss. Either condition can cause a loss of vehicle control, increasing the risk of a crash.
The remedy
GM will notify owners, and dealers will inspect the tires, replacing them as necessary, free of charge. The recall began March 22, 2021. Owners may contact GMC customer service at 1-888-988-7267, Buick customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N212329050.

General Motors, LLC · up to 33,838 vehicles across all model years covered

POWER TRAIN:AUTOMATIC TRANSMISSION

20V668000 · October 29, 2020

The defect
General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Cruze and Buick LaCrosse, 2018-2020 Chevrolet Equinox, Chevrolet Traverse and GMC Terrain, 2018 Chevrolet Malibu, 2019-2020 Buick Encore, Buick Enclave, Cadillac XT4, Chevrolet Blazer and GMC Acadia, and 2020 Cadillac XT6 vehicles. The start/stop accumulator endcap may have missing bolts.
The risk
Missing bolts on the start-stop accumulator endcap could result in a transmission oil leak and may progress to a loss of propulsion, increasing the risk of a crash. A transmission fluid leak in the presence of an ignition source may increase the risk of fire.
The remedy
GM will notify owners, and dealers will inspect the start-stop transmission accumulator and replace it if any bolts are missing, free of charge. The recall began December 15, 2020. Owners may contact GMC customer service at 1-888-988-7267, Buick Customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N202313440.

General Motors LLC · up to 194,105 vehicles across all model years covered

AIR BAGS:SIDE/WINDOW:CURTAIN:INFLATOR

20V446000 · July 30, 2020

The defect
General Motors, LLC. (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5 and XT6, Chevrolet Blazer, Silverado 1500, 2500 and 3500 and Traverse and GMC Acadia and Sierra 1500, 2500 and 3500 vehicles. The diffuser component of the Roof-Rail Air Bag (RRAB) inflator may not have been properly crimped to the inflator and could separate from the inflator during air bag deployment.
The risk
If the diffuser separates from the inflator during deployment, RRAB performance may be degraded, increasing the risk of injury in a crash.
The remedy
GM will notify owners, and dealers will replace the suspect RRAB modules, free of charge. The recall began September 3, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-333-4223, or Buick customer service at 1-800-521-7300. GM's number for this recall is N202305380.

General Motors LLC · up to 769 vehicles across all model years covered

In owners’ own words

Quoted from the complaint file

Quoted from NHTSA's complaint file. These are unverified accounts by the people who filed them, not findings of fault.

UNKNOWN OR OTHER

2 injured · crash · towed

6/12/2024 In Damon Parking lot in Rochester MN. Going less than 10 miles an hr- cars in front of me and behind me looking for a parking spot. Stop and go at times. Went to turn corner to go from one level to the next and my BLAZER took off "like a bullet". No control over accelerated speed- hit outer cement wall and slammed into 2 parked empty SUVS. Could not go any farther. The 2 SUVs slammed into cement wall in front of them. Injuries to both my passenger and myself. I have no idea what happened - it was so fast- I do know I had no control over accelerated rate causing accident. My 2020 Chevy Blazer was totaled- It was inspected by American National Insurance CO. Absolutely no warnings.

NHTSA complaint 11599228, quoted in part. Filed by an owner and not verified by NHTSA or by us.

SERVICE BRAKES

1 injured · crash · towed · 1,300 miles

I WAS DRIVING ABOUT 35MPH GOING STRAIGHT WHEN MY CHEVY BLAZER ACTED AS IF IT 'HIT A BRICK WALL' AND CAME TO A COMPLETE STOP. I GOT OUT AND NOTICED MY RIGHT, FRONT WHEEL WAS COMPLETELY SMASHED INTO MY CAR. SOMETHING HAD COME LOOSE INTERNALLY AND LOCKED UP MY WHEEL. IT DAMAGED MY CAR SO BAD WHERE MY SUSPENSION WAS DAMAGED. IT HAD TO BE TOWED. IT WAS NON DRIVABLE. MY VEHICLE ONLY HAD 1300 MILES ON IT. I DECIDED AT LAST MINUTE TO NOT GET ON HIGHWAY.

NHTSA complaint 11373091. Filed by an owner and not verified by NHTSA or by us.

AIR BAGS

1 injured · crash · towed · 72,000 miles

The contact owns a 2020 Chevrolet Blazer. The contact stated that while driving at approximately 65 MPH when a semi-truck crashed into the rear of the vehicle on the driver's side of the vehicle. The vehicle began to spin, causing it to go into the lane the semi-truck was in, and it was hit on the driver's side of the vehicle several times. The vehicle ended up crashing into the median and coming to a stop. The air bags did not deploy. The contact received neck injuries, spinal injuries, headaches, consistent ringing of the ears, shoulder injuries, and hip injuries. Medical attention was needed. A police report was filed. The vehicle was towed and taken to the dealer, who repaired the

NHTSA complaint 11662080, quoted in part. Filed by an owner and not verified by NHTSA or by us.

AIR BAGS

1 injured · crash · towed

Accident going about 50 mph and no airbags deployed

NHTSA complaint 11696935. Filed by an owner and not verified by NHTSA or by us.

STEERING
Power steering went out while driving making it impossible to steer.

NHTSA complaint 11765762. Filed by an owner and not verified by NHTSA or by us.

ELECTRICAL SYSTEM
This happened back in May and the dealership couldn’t find anything wrong and it happened again today. I am driving and the car will shut off. A message pops up saying shift to neutral and press start again. It’s very dangerous and frustrating.

NHTSA complaint 11765573. Filed by an owner and not verified by NHTSA or by us.

ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR

119,000 miles

The contact owns a 2020 Chevrolet Blazer. The contact stated that while operating the vehicle, the check engine warning light intermittently illuminated, and the vehicle hesitated while accelerating. The vehicle was taken to the local dealer to be diagnosed, and the contact was informed that the catalytic converter needed to be replaced. The vehicle was not yet repaired. Additionally, while operating the vehicle, the engine temperature rose to HOT. The vehicle was taken to the local dealer, and the thermostat was replaced. The manufacturer was notified of the failure. The failure mileage was 119,000.

NHTSA complaint 11764034. Filed by an owner and not verified by NHTSA or by us.

ELECTRICAL SYSTEM
The contact owns a 2020 Chevrolet Blazer. The contact stated that while starting the vehicle, the brake pedal became inoperable. There was no warning light illuminated. The contact stated that excessive force was needed to depress the brake pedal to engage the START/STOP function to start the vehicle. The dealer was not contacted. The manufacturer was made aware of the failure by telephone.

NHTSA complaint 11764039. Filed by an owner and not verified by NHTSA or by us.

UNKNOWN OR OTHER
The screen displayed shift to park. The car wouldn’t not recognize it was in park. Had to hit the shifter to get the car to recognize it was in park or it wouldn’t let you turn the car off. There was nothing other than the warning on the screen when we went to get gas and needed to turn the car off. It hasn’t been inspected by any of for this issue. I’m just afraid one day the car may roll if it doesn’t recognize it’s in park.

NHTSA complaint 11763580. Filed by an owner and not verified by NHTSA or by us.

ELECTRICAL SYSTEM
Vehicle: 2020 Chevrolet Blazer V6 System: Electronic Transmission Range Select (ETRS) – Gear Shifter / Park Engagement Concern Type: Potential Unintended Vehicle Motion / Failure to Confirm Park State Description of the Issue On the 2020 Chevrolet Blazer V6, the Electronic Transmission Range Select (ETRS) system fails to confirm that the transmission is in Park, even when the physical gear shifter lever is placed in the Park position. As a result The dashboard displays a "SHIFT TO PARK" warning message in the Driver Information Center (DIC). The vehicle continues to beep after the ignition is turned off. The vehicle does not fully power down, remaining in accessory/ON mode because the ETRS

NHTSA complaint 11763452, quoted in part. Filed by an owner and not verified by NHTSA or by us.

Compare

Other years of the Chevrolet Blazer

Model year Complaints Recalls Deaths
2025 32 1 —
2024 47 1 —
2023 43 2 —
2022 51 1 —
2021 134 1 —
2019 186 2 —

Other 2020 Chevrolet models

Silverado 1500 732 Equinox 309 Traverse 229 Malibu 198 Bolt EV 174 Silverado 2500 108 Trax 96 Colorado 84

Complaints on file, same model year.

Every Chevrolet on this site — 304 vehicles.

If this is your car and a dealer keeps failing to fix it, your state's lemon law may require the manufacturer to replace it or buy it back. How many repair attempts it takes, and how long you have to file, is set by the state you bought in and by nothing on this page.

Where these numbers come from

A complaint is one owner's account and has not been verified by NHTSA or by us. A vehicle with more complaints is not necessarily worse: models that sold in larger numbers collect more of them. How this is counted.

Compiled and maintained by
Independent developer and analyst