2004 Chevrolet Trailblazer Ext electrical system problems
145 owner complaints filed with NHTSA name the electrical system on the 2004 Chevrolet Trailblazer Ext — 56% of all complaints for this model year.
What owners report
“Instrumental panel/ gage cluster. All gages continue to fail spiking all over the place prior to failing. Air bag light continues to blink on then off randomly”
filed Dec 23, 2017
“Tl* the contact owns a 2004 chevrolet trailblazer ext. The contact stated that the entire instrument panel failed to operate. In addition, the speedometer, tachometer, and fuel gauge failed to function properly. The vehicle was taken to an independent mechanic who stated that the instrument panel…”
filed Jan 12, 2016
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% |
| 2003 Trailblazer Ext | 77 | 25% |
| 2002 Trailblazer Ext | 14 | 14% |
Other reported problem areas on the 2004 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.