Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 32 of 217 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
Electrical System. Review the 75 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Power Train. Review the 72 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Engine. Review the 68 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
5 crash reports0 fire reports6 injury reports
What owners actually said
217 reports
50,000 miles · Sep 24, 2024
Power Train
The contact owns a 2020 Chevrolet Blazer. The contact stated that upon arriving at his destination, the vehicle failed to detect that the gear shifter was in park(P), preventing the vehicle from being turned off. The contact stated that the message "Please Shift to Park" was displayed. There were no warning lights illuminated. T…
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The contact owns a 2020 Chevrolet Blazer. The contact stated that upon arriving at his destination, the vehicle failed to detect that the gear shifter was in park(P), preventing the vehicle from being turned off. The contact stated that the message "Please Shift to Park" was displayed. There were no warning lights illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 50,000.
NHTSA ODI #11616198
49,000 miles · Sep 24, 2024
Power Train
The contact owns a 2020 Chevrolet Blazer. The contact stated while the vehicle was parked in the driveway, the vehicle hesitated. The contact stated that while attempting to turn off the vehicle, the vehicle independently shifted out of gear. The vehicle was driven to the local dealer to be diagnosed. The dealer determined that …
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The contact owns a 2020 Chevrolet Blazer. The contact stated while the vehicle was parked in the driveway, the vehicle hesitated. The contact stated that while attempting to turn off the vehicle, the vehicle independently shifted out of gear. The vehicle was driven to the local dealer to be diagnosed. The dealer determined that the failure was a power train failure. The vehicle was not repaired. The manufacturer was notified on the failure. The approximate failure mileage was 49,000.
NHTSA ODI #11616160
Mileage unknown · Sep 22, 2024
Unknown Or Other
After I shift into park and press the button to turn my vehicle off, I receive a message on the dash that states "shift to park" and my vehicle will not turn off. This has happened on several occasions, but does not happen every time I attempt to turn my vehicle off. When I do receive the message, I usually have to restart my …
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After I shift into park and press the button to turn my vehicle off, I receive a message on the dash that states "shift to park" and my vehicle will not turn off. This has happened on several occasions, but does not happen every time I attempt to turn my vehicle off. When I do receive the message, I usually have to restart my vehicle and move the shift out of park and back into park before I can turn the vehicle off. Sometimes, I am able to get the error message to go away by jiggling the shift.
NHTSA ODI #11615853
Mileage unknown · Sep 18, 2024
Power Train
2020 Chevy Blazer- bad transmission at 130,000 miles
NHTSA ODI #11615244
Mileage unknown · Sep 5, 2024
Unknown Or Other
When car is put in park and cut off the vehicle doesnt recognize its in park and a light comes on saying “shift to park”. I have to keep pushing gear shift forward repeatedly even though its in park already. The car will not fully turn off till this error message is cleared. Ive had the car checked multiple times and the dealers…
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When car is put in park and cut off the vehicle doesnt recognize its in park and a light comes on saying “shift to park”. I have to keep pushing gear shift forward repeatedly even though its in park already. The car will not fully turn off till this error message is cleared. Ive had the car checked multiple times and the dealership states there is no code registering for this problem so they cannot fix problem so i cant get it fixed. Ive researched this and it is a known issue for multiple chevy models. Service mgr also stated its s known issue in multiple models.
NHTSA ODI #11612924
Mileage unknown · Aug 21, 2024
Power TrainSteering
My shift to park comes on although the vehicle is parked My steering is reduced came on today this is a problem in mutiple forms in regards to chevy blazers
NHTSA ODI #11609998
Mileage unknown · Aug 19, 2024
Electrical SystemPower TrainUnknown Or Other
When I put the car in park it does not register and will not come out of accessory more. This is a known issue and gm is making customers out of warranty pay for it
NHTSA ODI #11609387
Mileage unknown · Aug 14, 2024
EngineUnknown Or Other
Shift to park issues. Car not reading that it’s in park.
NHTSA ODI #11608438
Mileage unknown · Aug 5, 2024
Unknown Or Other
My car, since I bought it on and off, would say “shift to park”. It was on park. Lights and radio stays on. Now it does it constantly. I need to ensure my car is on park because I have my kids on the car!!! To make sure it is on park, I put it on drive and back to park like 2 times just to ensure I have it on park. Now every sin…
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My car, since I bought it on and off, would say “shift to park”. It was on park. Lights and radio stays on. Now it does it constantly. I need to ensure my car is on park because I have my kids on the car!!! To make sure it is on park, I put it on drive and back to park like 2 times just to ensure I have it on park. Now every single time I get try to turn off the car, it says shift to park and my lights and radio stays on for quite a bit. My cousin had the same problem with her other Chevrolet vehicles. If this is common, why has it not been recalled? I have a 2020 Chevy Blazer RS.
NHTSA ODI #11606676
Mileage unknown · Aug 5, 2024
Unknown Or Other
The backup camera in my preowned 2020 Chevy Blazer RS stopped operating within 7 months of purchasing Jan 13, 2024. It was replaced by local dealership. However, less than two weeks, it stopped working again. It's a safety feature that's not operational concerned may lead to accident. I did some research online where other owner…
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The backup camera in my preowned 2020 Chevy Blazer RS stopped operating within 7 months of purchasing Jan 13, 2024. It was replaced by local dealership. However, less than two weeks, it stopped working again. It's a safety feature that's not operational concerned may lead to accident. I did some research online where other owners have experienced the same problem.
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.
Consequence & remedy
Consequence: 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.
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 (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.
Consequence & remedy
Consequence: 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.
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. (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.
Consequence & remedy
Consequence: If the diffuser separates from the inflator during deployment, RRAB performance may be degraded, increasing the risk of injury in a crash.
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.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0
No exact-year investigations in this snapshot.
2020 Chevrolet Blazer Problems, Complaints & Recalls | Skip That Year