AI DamageChevrolet Blazer: problems, complaints, bulletins
Summary for the Chevrolet Blazer across 8 model years: 737 owner complaints and 1,284 NHTSA service bulletins, plus repair videos. Pick a year for details.
Model years
What fails most often
- 1 Electrical system 31% of all complaints
- 2 Engine 26% of all complaints
- 3 Powertrain 26% of all complaints
- 4 Steering 14% of all complaints
- 5 Service brakes 11% of all complaints
- 6 Forward collision avoidance 6% of all complaints
- 7 Fuel/propulsion system 5% of all complaints
- 8 Lane departure 2% of all complaints
- Electrical system: 225 complaints (31% of all), 4 of them with a crash reported by the owner; manufacturer bulletins for this component: 978.
- Engine: 190 complaints (26% of all), 2 of them with a crash reported by the owner; manufacturer bulletins for this component: 477.
- Powertrain: 188 complaints (26% of all), 1 of them with a crash reported by the owner; manufacturer bulletins for this component: 482.
- Steering: 102 complaints (14% of all), 1 of them with a crash reported by the owner; manufacturer bulletins for this component: 110.
- Service brakes: 80 complaints (11% of all), 12 of them with a crash reported by the owner; manufacturer bulletins for this component: 154.
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 2 L · petrol · 4 cyl 1984
- 2 L · petrol · turbo · 4 cyl 2020–2026
- 2.5 L · petrol · 4 cyl 1985–2021named in 1 complaints
- 2.8 L · petrol · 6 cyl 1984–1989
- 3.6 L · petrol · 6 cyl 2019–2026named in 12 complaints
- 4.3 L · petrol · 6 cyl 1988–2005
- 5 L · petrol · 8 cyl 1984–1987
- 5.2 L · petrol · 6 cyl 1995
- 5.7 L · petrol · 8 cyl 1984–1994
- electric 2024–2027
- 6.2 L · diesel · 8 cyl 1984–1991
- 6.5 L · diesel · turbo · 8 cyl 1994
- automatic, 1-speed 2024–2027
- automatic, 3-speed 1984–1987
- automatic, 4-speed 1984–2005
- automatic, 9-speed 2019–2026
- manual, 4-speed 1984–1991
- manual, 5-speed 1984–2005
Drive: AWD, RWD, FWD
Symptoms owners describe
How many of the 737 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 225 | 4 | 978 |
| Engine | 190 | 2 | 477 |
| Powertrain | 188 | 1 | 482 |
| Steering | 102 | 1 | 110 |
| Service brakes | 80 | 12 | 154 |
| Forward collision avoidance | 44 | 6 | 57 |
| Fuel/propulsion system | 38 | 2 | 63 |
| Lane departure | 18 | 0 | 27 |
| Vehicle speed control | 17 | 0 | 21 |
| Structure | 14 | 2 | 195 |
| Tires | 14 | 0 | 75 |
| Air bags | 13 | 9 | 27 |
| Engine and cooling | 12 | 0 | 589 |
| Suspension | 12 | 3 | 85 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
Failed Component: Service Brakes, Hydraulic / Electronic Brake Control Module (EBCM) / Automatic Emergency Braking (AEB) Description of Incident & Safety Defect: On June 11, 2026, while operating the vehicle, the primary braking system suffered a complete failure of electro-hydraulic power assist.
Safety risk: Hard brake pedal, loss of brake assist, increased stopping distance. Same condition reported before front collision August 2025. Left front remains hot. Driver scared to drive. NHTSA EA26006 open for eBoost 2023 Blazer describes same failure - spindle fracture, loss of ABS/stability, 21 crashes.
The contact stated that smoke was coming from the center of the steering wheel; however, the vehicle's air bags had not deployed. The contact was transported to the local hospital and treated for chest injuries. The vehicle was towed to a local collision center. No further information was available.
The failure was accompanied by a rapid cascade of three sequential dashboard warning messages in immediate succession: First Warning: "Service ESC" illuminated alongside the "Brake Park" warning light. Second Warning: "Brake Assist Failure. Press Hard to Brake.
Driving on straight road going speed limit. Heard a pop behind me like a tire pop. Car fish tailed uncontrollably and ended up crashing into a Ranch Fence on the right side of the road. 2 of my kids and myself had injuries.
On 10/29/25 I brought the vehicle in to Richard Lucas Chevrolet due to the alert from my insurance co that there was a recall with parking brake system. The dealership checked the car and told me they had to order the part that was needed due to the recall.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Steering. Steering play, power assist, rack and tie rods after a wheel impact.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- PI created to guide technicians through radio restriction process
- Certain vehicles may have a condition in which the thermal break tabs induce stress into the radiator…
- This Preliminary information communicates an issue with the SES MIL and DTC P062B and engineering is…
- This preliminary information is for technicians that may see DTCs that are history and should not perform…
- This Preliminary information communicates to dealers a procedure to reset the radio
- This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it
- Certain vehicles may have a condition in which the thermal break tabs induce stress into the radiator…
- General Motors has decided to conduct a Voluntary Emission Recall
- If a vehicle has an issue with super cruise inoperative tech is directed to follow a diagnostic path…
- Certain vehicles may have a condition in which the thermal break tabs induce stress into the radiator…
- Certain vehicles may have a condition in which the thermal break tabs induce stress into the radiator…
- This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance
Other models of this make
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.