2002 Chevrolet Blazer electrical system problems
21 owner complaints filed with NHTSA name the electrical system on the 2002 Chevrolet Blazer — 9% of all complaints for this model year.
What owners report
“The Blazer is showing many codes in the ECM, even though it seems to be running properly. The codes include: p0171, p0174, p0101, p0128, p0155, p0300, p1870, p0128, p0155. The dash recently showed warning lights for parking brake, ABS, and Service Engine soon. It was checked a few days ago by a…”
filed Nov 6, 2023
“My brake lights went out. The third brake light. As I owed a 2001 gmc jimmy that had the same problem that was covered under a recall I knew that the multifunction switch in the steering column was the problem. I went to my local chev dealership (koehne chev) in marinette wi. They said there was no…”
filed Mar 20, 2020
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
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, 2024Vehicle 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, 2024This 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
Electrical System problems in other Blazer years
| Year | Reports | Share |
|---|---|---|
| 2025 Blazer | 7 | 27% |
| 2024 Blazer | 7 | 17% |
| 2023 Blazer | 6 | 15% |
| 2022 Blazer | 11 | 26% |
| 2021 Blazer | 37 | 30% |
| 2020 Blazer | 71 | 34% |
| 2019 Blazer | 59 | 32% |
| 2006 Blazer | 2 | 11% |
| 2004 Blazer | 10 | 20% |
| 2003 Blazer | 9 | 12% |
| 2001 Blazer | 40 | 12% |
| 2000 Blazer | 49 | 8% |
Other reported problem areas on the 2002 Chevrolet Blazer
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.