The 2020 Chevrolet Blazer has 3 NHTSA recall campaigns affecting an estimated 228,712 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 345 complaints with NHTSA, most often about the electrical system. Last updated July 5, 2026.
Recall campaigns
TIRES21V1150002021-02-2533,838 affected
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…
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…
POWER TRAIN20V6680002020-10-29194,105 affected
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…
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…
AIR BAGS20V4460002020-07-30769 affected
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…
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…
Complaints by component
ELECTRICAL SYSTEM
71
POWER TRAIN
69
2injuries
ENGINE
67
1crashes2injuries
UNKNOWN OR OTHER
54
1crashes2injuries
STEERING
39
SERVICE BRAKES
8
1crashes1injuries
FUEL/PROPULSION SYSTEM
4
1crashes2injuries
SUSPENSION
4
1crashes1injuries
VEHICLE SPEED CONTROL
4
TIRES
3
Total complaints345
What owners report
Verbatim reports filed with NHTSA, lightly edited for readability and with personal
information removed.
“I am submitting this complaint regarding my 2020 chevrolet blazer and what appears to be a widespread cooling system defect. My vehicle has developed a coolant smell outside the vehicle, which raises concerns about a coolant leak from the radiator. After researching the issue, I discovered that…”
“This is what came up on my screen.steering wheel assist reduced.drive with care. My hot and cold gauge drop to c and stayed there for about 4 days and my a/c was blowing out hot air. I was told a lot of these suvs have done this.”
“This is what came up on my screen.steering wheel assist reduced.drive with care. My hot and cold gauge drop to c and stayed there for about 4 days and my a/c was blowing out hot air. I was told a lot of these suvs have done this.”
“Engine temp gauge bottoms out because the thermostat is stuck open, causing the air to stop working. Also a warning that the steering assist is reduced. Eng check light comes on with a code p0208. This a known problem with an extended service # (n242484760) but only if your vin is listed. All…”
“Engine temp gauge bottoms out because the thermostat is stuck open, causing the air to stop working. Also a warning that the steering assist is reduced. Eng check light comes on with a code p0208. This a known problem with an extended service # (n242484760) but only if your vin is listed. All…”
“Engine temp gauge stops working causing the air to stop working and the cooling fan to rev to highest rpm. Also a warning that the steering assist is reduced. Eng check light comes on with a code p0208. This a known problem with an extended service # (n242484760) but only if your vin is listed.…”
“Engine temp gauge stops working causing the air to stop working and the cooling fan to rev to highest rpm. Also a warning that the steering assist is reduced. Eng check light comes on with a code p0208. This a known problem with an extended service # (n242484760) but only if your vin is listed.…”
“Variable valve timing (vvt) exhaust solenoid engine light has been coming on and turning off immediately for a few months, finally found the issue. $665 replacement.”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL,
FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2020 Chevrolet Blazer as of
July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page
contains ads and affiliate links. Full methodology.