2001 Chevrolet Blazer problems & reliability
326 owner complaints filed with NHTSA for the 2001 Chevrolet Blazer, alongside 3 safety recall campaigns. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
19 complaints report injuries (22 injured, 2 deaths reported).
Federal crash records (FARS 2020–2023): 2001 Chevrolet Blazer vehicles were involved in 44 fatal crashes with 33 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Exterior Lighting | 68 | 21% |
| Electrical System | 40 | 12% |
| Suspension | 40 | 12% |
| Service Brakes, Hydraulic | 36 | 11% |
| Power Train | 31 | 10% |
| Fuel System, Gasoline | 26 | 8% |
| Engine and Engine Cooling | 23 | 7% |
| Air Bags | 22 | 7% |
| Structure | 15 | 5% |
| Visibility | 15 | 5% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Mileage when problems occurred
Half of the failures with a reported odometer reading occurred by 62,850 miles (middle 50% between 40,448 and 81,253 miles), based on 138 complaints that included mileage.
Complaints by incident year
What owners report
“Chevy Blazer has low milage. However, it still has several electrical issues radio at engine start goes to loudest point and car seats move backwards at awkward times which can cause an accident. Suspension very off guard, truck drifts to the sides while driving and makes an awkward sound when turning steering wheel…”
Electrical System · filed May 27, 2023
“The contact's girlfriend owns a 2001 Chevrolet Blazer. The contact stated that fuel was leaking from the top of the fuel tank. There was an abnormal fuel odor detected. Additionally, the vehicle was slow to start. There were no warning lights illuminated. The contact called the local dealer however, the vehicle was…”
Fuel System, Gasoline · filed Jun 29, 2021
“I have a 2001 blazer that keeps popping up a check engine light codes.I.e p0301,p0753,p0756,p0758. I have had these parts replaced twice in the last few months. Mechanic said it was related to the electrical system. The codes come back after driving for about 100 miles.”
Power Train · filed Nov 17, 2020
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- HAZARD LIGHT SWITCH FAILURE
Recall Query RQ08001 · opened Feb 28, 2008 · closed Jul 9, 2008 · led to recall 08V231000
- LOSS OF STOP LAMP ILLUMINATION
Preliminary Evaluation PE01032 · opened Sep 6, 2001 · closed Dec 20, 2001 · led to recall 01V364000
Technical service bulletins
364 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2001 Chevrolet Blazer. The 10 most recent:
This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
PIP5601C · Service Bulletin/Repair Instructions · issued Jul 18, 2025
This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or…
PIP5358D · Service Bulletin/Repair Instructions · issued Feb 20, 2025
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8…
PIP4723J · Service Bulletin/Repair Instructions · issued Oct 25, 2024
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician…
PIT5099H · Service Bulletin/Repair Instructions · issued Sep 12, 2024
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician…
PIT5099H · Service Bulletin/Repair Instructions · issued Sep 12, 2024
Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to…
General Communication · Service Campaign · issued Aug 26, 2024
GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or inadequate packaging or shipping. This…
24-NA-141 · Service Bulletin/Repair Instructions · issued Jul 24, 2024
This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how…
16-NA-383 · Service Bulletin/Repair Instructions · issued Jun 28, 2024
This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
18-NA-099 · Service Bulletin/Repair Instructions · issued Jun 17, 2024
This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and…
24-NA-098 · Service Bulletin/Repair Instructions · issued Jun 6, 2024
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2001 Chevrolet Blazer has 3 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2001 Chevrolet Blazer?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Owners most often reported problems around 62,850 miles — budget accordingly if the car is approaching that mileage.