2019 Chevrolet Blazer problems, complaints & recalls
Most-reported problem areas: Power Train (42) · Electrical System (23) · Steering (22)
🧭 Reliability snapshot
Compared against other Chevrolet Blazer model years — complaint volume vs the model's median year, recalls and severity. How we score →
Safety recalls (2)
Tires 2021-02-25 · campaign 21V115000 · 33,838 vehicles
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.
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.
Fix: 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.
Power Train:automatic Transmission 2020-10-29 · campaign 20V668000 · 194,105 vehicles
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.
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.
Fix: 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.
Service bulletins (850)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Unknown Or Other 2026-10-26 · GM Update N25-250552 · Over The Air
• improvements to onstar functionality.
Unknown Or Other 2026-09-26 · PIT5698F · Service Bulletin/Repair Instructions
this pi provides diagnostics tips on how the lin bus works and how to diagnosis it.
Unknown Or Other 2026-09-04 · PIP4902W · Service Bulletin/Repair Instructions
this preliminary information advises a dealer on how to email gds2 session logs into technical assistance.
Unknown Or Other 2026-07-21 · PIT5099J · Service Bulletin/Repair Instructions
pi to help diagnose a/c concern
Unknown Or Other 2026-04-01 · PIT3271Q · Service Bulletin/Repair Instructions
this preliminary information communicates information about how to determine if a wheel and tires size change is available.
Unknown Or Other 2026-03-09 · PIP6104 · Service Bulletin/Repair Instructions
this preliminary information communicates the steps on how to save a gds2 session log and upload to a technical assistance case in cx connect.
Showing the 6 most recent of 850 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-10-17 · Electrical System“shift to park displays on dash when put in park after i turn the car off. have to turn the car back on shift from park to drive several times before it finally goes off. something going on with backup camera when backing up it not always comes up on interior display monitor. the outlet in the console dc outlet not working had it looked at several t…”
2026-10-16 · Steering“electronically controlled thermostat and sensor fail or get stuck at a much lower coolant temperature causing the dash to display the “steering assist is reduced drive with care.” it isn’t just a message, the steering is much harder to use potentially causing an accident. the ac completely doesn’t work causing potential for sensitive, elderly, or y…”
2026-10-12 · Structure:body“driver's side floorboard floods during rain, dripping water under the dashboard directly onto the accelerator and brake pedal. trapping water and trapped moisture has caused severe mold buildup throughout the interior, creating respiratory hazards and window fogging. this matches gm technical service bulletin 23-na-087.…”
2026-08-27 · Structure · 22,000 mi“the contact owns a 2019 chevrolet blazer. the contact stated that while starting the vehicle, there was a strong odor coming from the vehicle, and no warning lights illuminated. the contact also stated that a "shift to park" warning message displayed while the vehicle was already in park, requiring multiple shifting attempts to clear the message. t…”
2026-08-27 · Lane Departure: Blind Spot Detection“just had to replace a radiator that was leaking all across the top. also have gotten the steering assist warning for thermostat and temperature sensor. seems to be cery common problems rhat gm ahould fix…”
2026-08-18 · Power Train“thermostat went bad at 47,500 miles. temp gauge stopped working, engine light came on and alert stating steering assist is reduced …”
2026-07-30 · Electrical System“shift to park sensor shift to park warning. it was reported to dealer …”
2026-06-16 · Unknown Or Other“1º transmisión 2º me quede detenida en una autopista y no podía avanzar por que no respondía a los cambios de velocidad 3º si 4º si 5º no …”
2026-05-27 · Unknown Or Other“i was driving into a parking lot when my back passenger side window imploded like a rock was thrown at it, but no rock and nobody in sight. i looked all around for a cause but believe it somehow spontaneous shattered. thankfully 3 minutes prior i had dropped my kids at school otherwise there would have been injury i am sure. …”
2026-05-25 · Steering“electronically controlled thermostat and sensor fail or get stuck at a much lower coolant temperature causing the dash to display the “steering assist is reduced drive with care.” it isn’t just a message, the steering is much harder to use potentially causing an accident. the ac completely doesn’t work causing potential for sensitive, elderly, or …”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.