Electrical complaints by model year
| Year | Complaints | Share of year's complaints | Typical mileage |
|---|---|---|---|
| 2025 | 11 | 32% | — |
| 2024 | 7 | 14% | 22,000 miles |
| 2023 | 7 | 16% | 58,000 miles |
| 2022 | 20 | 37% | 83,000 miles |
| 2021 | 40 | 29% | 38,000 miles |
| 2020 | 77 | 35% | 38,000 miles |
| 2019 | 62 | 33% | 33,000 miles |
| 2008 | 1 | 20% | 115,000 miles |
| 2006 | 2 | 11% | 137,000 miles |
| 2005 | 4 | 27% | 75,000 miles |
| 2004 | 10 | 20% | 24,000 miles |
| 2003 | 9 | 12% | 61,000 miles |
| 2002 | 21 | 9% | 39,000 miles |
| 2001 | 40 | 12% | 60,000 miles |
| 2000 | 49 | 8% | 94,000 miles |
| 1999 | 40 | 9% | 89,000 miles |
| 1998 | 71 | 10% | 71,000 miles |
| 1997 | 89 | 12% | 91,000 miles |
| 1996 | 62 | 5% | 104,000 miles |
| 1995 | 70 | 6% | 179,000 miles |
Which parts fail
Components named in complaints (battery, alternator, wiring, ignition, instrument cluster, infotainment).
Mileage when the problem started
What owners report
Driving this vehicle in cruise control at around 70-80 mph, on an empty freeway early in the morning. No traffic but suddenly and for no reason the collision prevention system activated causing the steering wheel to turn all the way to the right and locking in place, the brakes activating, and leaving me no control sending me and two passengers in an embankment and the car on its passenger side.
The infotainment system of a brand new 2025 Blazer EV is doing blackouts, flickers, and changing commands and requests. While this may sound trivial - and if this system just did the radio - I would agree. However it controls most all the sub-systems of the car from Charging, to Display, to GPS, Environmental, etc. While at home it is just annoying and frustrating - we traveled to VA from FL this past week. Traffic was horrendous due to a closure of I95 in SC - ALL traffic was forced onto 2 lane country roads. Attempting to use the Controls, adjust GPS for alternatives, and adjusting displays - the glitches were causing either unexpected actions - or distracting longer than expected and causing near accidents. In addition I report that the "collision avoidance" is marginal or dangerous. …
The contact owns a 2024 Chevrolet Blazer. The contact stated that while driving 30 MPH on an icy road, the vehicle swerved out of the intended lane because of an ice patch on the road. The contact lost control of the vehicle, and the vehicle continued to swerve, almost causing a crash. There was no warning light illuminated. The vehicle was taken to a dealer, where the contact was informed that the vehicle needed a 4-wheel alignment. The manufacturer was notified of the failure, and the contact was informed that there were no recalls on the VIN related to the failure. The contact was then referred to the NHTSA Hotline to file a complaint. The vehicle was repaired. The failure mileage was approximately 22,000.
I have found multiple times that the Instrument Panel (IPC) display and the center Infotainment displays have gone dark while driving. This has put me in unsafe driving situations because I am unable to monitor my speed and other important information displayed on the dashboard, or to control critical safety controls such as headlights, and other ADAS safety controls. Several software updates have been installed by the dealership, but the problem has persisted, suggesting a hardware issue with the radio unit. The manufacture insist it is a software problem and that they are working on a solution. Declining to replace the radio under warranty, additionally, they want me to wait until a new update is released, and in the meantime, my bumper-to-bumper warranty is about to expire. …
2023 Chevrolet Blazer 42334 miles 9/18/2026 Component failed: 2023 Blazer RS eBoost system. Integrated electronic brake booster / master cylinder / brake pedal sensor assembly. Component available for inspection. Same left front corner had frozen caliper FRC13443C at 37,940 miles June 2025 to pass inspection, sold as certified at 38,038 miles. Vehicle currently 42,334 miles. 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. Reproduced/confirmed: Yes. Independent shop A+ Automotive RO 82780 Sept 15 2026 confirmed hard pedal remains after full bleed, measured 8mm front/rear. …
Odometer Fraud. The contact purchased a 2023 Chevrolet Blazer. It was discovered that there was a mileage discrepancy. The vehicle was a dealer sale. At the time of the purchase the vehicle mileage was 57,692. It was discovered using the Kelley Blue Book/Experian that in 2022 vehicle was listed for sale with mileage of 57,705, and in 2023 same vehicle was listed with 23 miles.
The contact owns a 2022 Chevrolet Blazer. The contact stated that upon coming to a complete stop, the vehicle shut off. After several attempts, the vehicle was restarted, and the contact continued to drive. The vehicle was taken to an independent mechanic, where it was diagnosed, and the contact was advised that the failure was not duplicated. The vehicle was taken to a dealer where it was diagnosed, and the contact was informed that the failure was not duplicated; however, the dealer suggested that the fuel pump driver control module be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 83,000.
The contact owns a 2022 Chevrolet Blazer. The contact stated that after the dealer had performed a software update under TSB Number: N212355740, the computer blew up. The contact was informed of the failure, provided a loaner vehicle, and advised that the manufacturer was notified of the failure by phone. The dealer was awaiting a callback from the manufacturer before performing further repairs. The contact expressed concerns and dissatisfaction that the dealer had recently confirmed the vehicle was covered under the TSB, but the manufacturer had failed to send a notification of the TSB. The failure mileage was approximately 12,000.
Frequently asked questions
Which Chevrolet Blazer years have electrical problems?
By NHTSA complaints, the 1997 (89), 2020 (77), 1998 (71), 1995 (70) and 1996 (62) model years. Electrical complaints make up 12% of all complaints for the 1997.
Is there a recall for Chevrolet Blazer electrical problems?
No. NHTSA lists no electrical system recall for any Chevrolet Blazer model year. A widespread problem may still be covered by an extended warranty or a manufacturer service bulletin, so ask a dealer.
At what mileage do Chevrolet Blazer electrical problems start?
Across all years, half of the complaints with a recorded mileage happened before about 76,000 miles; 30% happened before 50,000 miles.
What part fails most often?
Owners most often name the 12v/24v/48v battery (63 mentions), followed by the alternator/generator/regulator (43).
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.