2002 Chevrolet Trailblazer Ext electrical system problems
14 owner complaints filed with NHTSA name the electrical system on the 2002 Chevrolet Trailblazer Ext — 14% of all complaints for this model year.
What owners report
“Outside temperature displaying 50 degrees regardless of actual outside temperature. When actual temperatures below freezing this represents a hazard. When temperatures above 50 degrees air conditioning not responsive (even when temperatures in excess of 100 degrees, "heater" comes on due to…”
filed Aug 13, 2013
“Pulled into driveway, lights would not go off, a few minutes later smoke was coming out from under hood and it smelled like burning plastic. Popped hood and fuse block and relay we smoking and melting! Got fire extinguished and pulled the head light relay switch, but it had melted through the…”
filed Jul 19, 2013
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
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, 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, 2024This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.
10-08-45-001H · Service Bulletin/Repair Instructions · issued Mar 28, 2024
Electrical System problems in other Trailblazer Ext years
| Year | Reports | Share |
|---|---|---|
| 2006 Trailblazer Ext | 41 | 22% |
| 2004 Trailblazer Ext | 145 | 56% |
| 2003 Trailblazer Ext | 77 | 25% |
Other reported problem areas on the 2002 Chevrolet Trailblazer Ext
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.