Which parts fail
Components named in complaints (battery, alternator, wiring, ignition, instrument cluster, infotainment).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2001 Chevrolet Blazer owners, lightly cleaned up (personal details are redacted by NHTSA).
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. The complete break / steering system is off and may cause an accident if not properly take care right away. I have no money to do this big job. Please remediate.
Our 2001 Chevrolet blaze caught on fire while parked about 5 minutes after being turned off. The entire engine and front end are scorched. The interior has smoke and water damage. At this time, we have not heard from our insurance adjuster to know the extent - totalled or repairable? The vehicle had been to the dealer one week prior because the rear tailgate wouldn't open. They replaced the actuator and don't believe their work was in any way related to the fire. We purchased the vehicle from the dealer 10 months ago - it had 31,000 miles on it and we only put 5,000 miles on it. I have filed a complaint with GM and believe that they should be responsible and pay out on the loss - not our insurance company.
Caller stated that vehicle was in park with the ignition off, and about fifteen minutes after caller parked the car, someone notified him that the vehicle was on fire and burning heavily. Fire seemed to be confined to the engine compartment. Caller speculated that the fire began on the passenger's side of the engine compartment. By the time the fire department showed up, the fire was put out through the application of water.
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.
2001 Chevrolet Blazer. Consumer writes in regards to ignition switch recall issues also airbags and seat belts malfunction during accident. The consumer and her son were involved in a roll over accident. As a result, her son died.
I was in a drive through which looped around the building. I applied the brake to stop at the window and could feel the ABS engage and the vehicle did not want to stop. It scared me and of course I reapplied the brake quickly, to avoid hitting the vehicle in front of me, and I was finally able to stop. This happened again a few weeks later at a large intersection at a red light. I was 7 months pregnant at the time and was pretty scared. I have heard several of these complaints and I know that the brakes on every year before this were recalled. I also had trouble with the brake lights and four-ways, which stopped working. I was driving and the four ways came on. I had to pull over and ended up holding the button down while I drove in order for them to stop flashing. Shortly after the turn signals stopped working. …
I am pregnant and very scared to drive this vehicle again. I was told by rick, service manager, toni hall at flow Chevrolet a year ago that this 4x2 and 4x4 wheel drive was corrected while under warranty. They refused to fix the major problem and changed out a switch. During this whole year I haven't been able to drive comfortablly. Now they have had to replace the whole front end. A brand new car now with only 39,000 miles. The noise is terrifying and I've been insulted by GM with a loyalty incentive for $700 to take off on a new vehicle. No one can asure me that I will be safe, even after they told me it was fixed a year ago. I'm scared to drive it. I will leave it at their place until they can get me a safe car to drive.
Gas gauge goes to empty and "low fuel" light comes on at anytime while driving, stays on for several seconds to several minutes and then gauge goes back to correct reading and light goes out. After several weeks of this "service engine soon" light came on. Personal technician reported that this is a common problem in vehicles of all brands and related to, the gas cap. Advised to turn gas cap for at least 3 clicks when done fueling and not to take the cap off the tank when the motor is running. Replaced gas cap and reset the computer, it was fine for 2 weeks. Gauge acting up again, mechanic going to pull tank and check if a lose baffle is interfering with the sending unit. May have to replace sending unit.
Brake lights fail to illuminate, hazard flasher intermittently works, top center brake light works as it should. Replaced the flasher unit to no avail. Determined to be a defective turn signal-multifunction switch. Researched the numerous complaints and saw that there was a recall for this problem but according to the dealer my vehicle does not fit it to the recall. I see that there are many many people with the same problem. It seems that this recall did not include many of the effected vehicles.
Vehicle was stalling without warning and could not be restarted until a minimum of 30minutes had elapsed. Vehicle checked by dealer who determined original delco battery leaked through the battery tray and damaged the function of the vehicle's computer. Ts consumer stated the engine stills shuts off at times. The throw-out bearings were noisy. The dash lights become very hot after vehicle has warmed up. Door on fuel tank rattles when moving.
Electrical complaints in other Blazer years
Frequently asked questions
How common are electrical problems on the 2001 Chevrolet Blazer?
NHTSA has 40 complaints about the electrical system of the 2001 Chevrolet Blazer, 12% of the model year's 326 complaints. The component named most often is wiring › interior/under dash (7 mentions).
Is there a recall for 2001 Chevrolet Blazer electrical problems?
No. NHTSA lists no electrical system recall for the 2001 Chevrolet Blazer, though it has 3 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2001 Chevrolet Blazer electrical problems start?
Half of the complaints with a recorded mileage happened before about 60,000 miles, and 5% before 25,000 miles.
Is it dangerous?
Owners linked 2 crashes, 4 fires and 1 injury and 1 death to electrical system problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.