2004 Chevrolet Trailblazer Electrical system Problems
- Complaints
- 627about this part
- Share
- 58%of 1,081 total for the year
- Median mileage
- 65,068miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 627 complaints about the electrical system of the 2004 Chevrolet Trailblazer, 58% of the 1,081 complaints for this model year. Where a mileage was given, the median is 65,068 miles. 4 of these say a crash was involved and 14 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Most of the gauges are very erratic when in motion or stopped. Tachometer jumps around, oil pressure reads all over, speedometer goes to zero or full scale, amp meter drops below 14 and lights dim when this happens, (have had the alternator replaced 3 times, this is quite a safety concern for me as I have no idea what to believe on any of the gauges. No repair shop has been able to solve the problem.”
NHTSA complaint #11308287, filed 2020-02, 80,000 miles“After starting my 2004 chevy Trailblazer the gauges on the instrument panel did not work. But the ABS, seat belt, break and check engine lights are on. The indicator for gears is out. The speedometer jumps so not always sure how fast I'm going. I have only owned this vehicle for a short time. But after some research I have discovered that this is a very common problem with this vehicle.”
NHTSA complaint #11132279, filed 2018-09, 92,000 miles“Ignition key would not turn off and was locked to on position. I had to take it to a local service station where they installed a replaced the key cylinder for the cost of $345. I believe this may be related to the earlier recall of other GM models recalled due to ignition issues. I did not contact the dealer as I needed to get it repaired in a timely manner.”
NHTSA complaint #10762384, filed 2015-09, 150,000 miles“My gauge cluster will intermittently stop working both while driving and while vehicle is parked and running. Usually after a few moments it would go back to normal but now the issue is getting worse and I have to tap on the gauge cluster for the gauges to resume working.this has been an ongoing problem since approximately 2006 but chevy refuses to issue a recall on this issue which is in my opinion a safety issue”
NHTSA complaint #11062086, filed 2018-01, 35,000 miles“Beginning with the tachometer in 2011, the remaining gauges on the instrument panel cluster have proceeded to stop working over the next two plus years to the point that none of them work anymore (including the speedometer). We have no idea how fast we are driving nor do we know the status of our fuel level.”
NHTSA complaint #10606882, filed 2014-06, 40,000 milesRelated service bulletins
- 11009156Oct 25, 2024This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester…
- 11006621Aug 26, 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…
- 11002312Jun 6, 2024This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414…
- 10252735Mar 28, 2024This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.
- 10244214Sep 21, 2023This informational bulletin provides information for the IPC odometer programming method quick reference guide.
- 10225615Oct 19, 2022This service bulletin provides information on Module Harvesting.
- 10198890May 25, 2021This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or…
- 10189005Dec 7, 2020This SKU is a Climate Control Module. The customer communication requested return of unsold inventory to inspect for a software issue. If the software issue exists it can cause a…
- 10176649May 20, 2020This informational bulletin provides information for the IPC odometer programming method quick reference guide.
- 10171318Jan 31, 2020This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 4 | 33% |
| 2025 | 14 | 54% |
| 2024 | 11 | 31% |
| 2023 | 17 | 23% |
| 2022 | 31 | 28% |
| 2021 | 41 | 21% |
| 2009 | 9 | 33% |
| 2008 | 65 | 34% |
| 2007 | 200 | 27% |
| 2006 | 251 | 23% |
| 2005 | 617 | 42% |
| 2004 | 627 | 58% |
| 2003 | 285 | 32% |
| 2002 | 181 | 16% |
| 2001 | 2 | 10% |
| 2000 | 1 | 4% |
Other parts of the 2004 Chevrolet Trailblazer
148 complaintsExterior lighting
101 complaintsTransmission and drivetrain
62 complaintsAir bags
42 complaintsEngine cooling
39 complaintsVehicle speed control
38 complaintsVisibility (wipers, defrost, mirrors)
31 complaintsBrakes
24 complaintsBody and structure
23 complaintsOther or unknown
21 complaintsEngine
16 complaintsSuspension
14 complaints
← All problems reported for the 2004 Chevrolet Trailblazer
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology