Chevrolet Blazer Power Train Problems
Owners have filed 752 complaints with NHTSA about power train problems on the Chevrolet Blazer across 16 model years. The 1997 model year has the most (110). The words owners use most often: “shift park” (8% of reports).
- 752power train complaints
- —median miles at failure
- 16mention a crash
- 10mention an injury
- 3related recalls
- $2,350typical repair cost reported by owners
- 36%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- Shift park: mentioned in 57 of 752 complaints (8%)
How much does it cost to fix?
Owners who wrote down what they paid or were quoted put the typical power train repair on the Chevrolet Blazer at $2,350, and half of them between $1,250 and $3,500.
Based on 38 NHTSA complaints about this problem alone that state a repair bill or quote (1999–2026), converted to 2026 dollars with the U.S. consumer price index. These are owners' own figures, not a quote: they include dealer quotes, and owners who file complaints often faced larger repairs, so they can run higher than typical shop prices. Prices vary by shop, region and warranty coverage. How we calculate this.
At what mileage do power train problems happen?
Based on 192 complaints that reported the odometer reading.
How serious are the reports?
Of 752 complaints, 16 mention a crash, 13 a fire, 10 an injury.
Chevrolet Blazer power train complaints by model year
| Model year | Power Train complaints | Share of that year | Median miles |
|---|---|---|---|
| 2024 Blazer | 8 | 16% | 46,831 |
| 2023 Blazer | 10 | 23% | 60,622 |
| 2022 Blazer | 12 | 23% | — |
| 2021 Blazer | 18 | 13% | 84,000 |
| 2020 Blazer | 74 | 33% | 50,000 |
| 2019 Blazer | 64 | 34% | 33,000 |
| 2004 Blazer | 4 | 8% | 69,662 |
| 2003 Blazer | 12 | 16% | 21,000 |
| 2002 Blazer | 33 | 13% | 40,000 |
| 2001 Blazer | 31 | 10% | 56,696 |
| 2000 Blazer | 84 | 14% | 67,000 |
| 1999 Blazer | 54 | 12% | 65,000 |
| 1998 Blazer | 74 | 10% | 67,750 |
| 1997 Blazer | 110 | 14% | 71,000 |
| 1996 Blazer | 96 | 8% | 81,638 |
| 1995 Blazer | 68 | 6% | 66,050 |
When owners reported it
Related recalls (3)
Power train:automatic transmission
Model years: 2023
Problem: General Motors, LLC (GM) is recalling certain 2023 Cadillac XT6, GMC Acadia, Chevrolet Blazer, Traverse, and 2022-2023 Cadillac XT5 vehicles. The transmission may have been built with an incorrect sun gear, which can result in the driver-side half-shaft disengaging from the transmission.
Risk: A half-shaft disengaging from the transmission can result in a loss of drive power or vehicle rollaway when the vehicle is placed in park. Either of these scenarios can increase the risk of a crash.
Fix: Dealers will replace the sun gears, free of charge. Owner notification letters were mailed on July 27, 2023. The remedy is expected to become available August 31, 2023. Owners may contact Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GMC's number for this recall is N222389310.
Power train:driveline:driveshaft
Model years: 2023
Problem: General Motors, LLC (GM) is recalling certain 2023 Chevrolet Blazer and Traverse vehicles. The left-side half-shaft assemblies may be missing a retaining ring.
Risk: A missing retaining ring on the half-shaft can cause half-shaft inner joint separation, resulting in a loss of drive power or vehicle rollaway when the vehicle is placed in park. Either of these scenarios can increase the risk of a crash.
Fix: Dealers will replace the left-side half-shaft assembly, free of charge. Owner notification letters were mailed February 23, 2023. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N222390180.
Power train:automatic transmission
Model years: 2019, 2020
Problem: 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.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
The thermostat is malfunctioning along with engine temperature coolant sensor. This causes the temperature gauge on the dashboard to be completely disabled and not moving off cold, it disables the air conditioner, makes the engine cooling fan to run extremely high nonstop, and places the vehicle…
I am reporting a severe powertrain safety hazard involving my 2022 Chevrolet Blazer at approximately 69,000 miles. The vehicle's 9-speed transmission is experiencing a critical internal hydraulic failure that causes unpredictable and violent lurching. Specifically, there is a severe delayed…
Chevy Trunk opens automatically without key
This happened back in May and the dealership couldnât 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. Itâs very dangerous and frustrating.
Vehicle: 2024 Chevrolet Blazer VIN: [XXX] Component: Engine Cooling System (Radiator) Description of Incident: On XXX the vehicle was brought in for a routine maintenance service at approximately 20,000 miles. During the inspection, technicians at Hamilton Chevrolet in Warren, Michigan discovered a…
Frequently asked questions
Do all Chevrolet Blazers have power train problems?
No. NHTSA has 752 owner complaints about power train for the Chevrolet Blazer. Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the Chevrolet Blazer power train?
Yes: 3 safety recalls list power train. Check your VIN on NHTSA.gov to see whether the fix was done on your car.
How much does it cost to fix power train problems on the Chevrolet Blazer?
Owners report a typical cost of $2,350 (half paid between $1,250 and $3,500), from 38 complaints that state a repair bill or quote, in 2026 dollars.
What do owners say about power train problems on the Chevrolet Blazer?
The most frequent phrase is “shift park”, in 57 of 752 complaints.
Other Chevrolet Blazer problems
See all Chevrolet Blazer problems.