2008 Chevrolet Trailblazer Electrical system Problems
- Complaints
- 65about this part
- Share
- 34%of 193 total for the year
- Median mileage
- 76,000miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 65 complaints about the electrical system of the 2008 Chevrolet Trailblazer, 34% of the 193 complaints for this model year. Where a mileage was given, the median is 76,000 miles. 11 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Since owning the vehicle; purchased used in 2005 from a dealer; we have had to replace the ignition switch twice. Called to report problem to Chevrolet since all the news of ignition switches; they didn't seem concerned or interested since this vehicle was not listed on the recall list. It has left me stranded twice and has cost me approx. $400.”
NHTSA complaint #10576381, filed 2014-04, 108,000 miles“The ignition switch has been acting like the ones that are recalled with the 05 - 07 model years. Our vehicle when you turn the ignition on it acts like its dead, even with no key in ignition you can turn switch a little and the gear selector light comes on as well as the battery light, and we have had two dead batteries from this.”
NHTSA complaint #10610548, filed 2014-07, 45,000 miles“I've noticed several times that my vehicle will turn on when I place the ignition key into the on position right before I turn the key all the way to start it. I'm not sure if it was due to the cold weather or not. Also, my engine light is always on and I had it tested which came back as an emissions control problem. Which could be the gas cap I haven't paid to fix yet.”
NHTSA complaint #10569429, filed 2014-03, 98,000 miles“I have had my 2008 trailblaer for a year now. I have been having major electrical issues for the past few months including my battery light and other popping up ramdonly and my truck not wanting to drive or run right. Now my exhaust manifold is completely cracked thru,”
NHTSA complaint #10925060, filed 2016-11, 120,000 miles“While driving low beam lights shut off while driving at night. Will not come on now! This is a very dangerous situation for safety reasons. I am 73 years old and afraid to drive at night and also daytime with no daytime running lights. Please advise if there is a recall or solution so I can have dealer get it fixed. Loyal Chevrolet customer for 50 years that needs desperate help. Thank you! ## VIN passed ## chevy Trailblazer lt2 2008 ##”
NHTSA complaint #10695072, filed 2015-03, 25,000 milesRelated service bulletins
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- 11007116Aug 6, 2024This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
- 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…
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- 10252735Mar 28, 2024This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.
- 10249535Jan 8, 2024This preliminary information (PI) provides information om Service Programming System (SPS) Error Codes (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or…
- 10244214Sep 21, 2023This informational bulletin provides information for the IPC odometer programming method quick reference guide.
- 10240359Jul 31, 2023This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
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 2008 Chevrolet Trailblazer
33 complaintsEngine
21 complaintsExterior lighting
17 complaintsBrakes
15 complaintsEngine cooling
12 complaintsSeat belts
12 complaintsSteering
11 complaintsElectronic stability control
10 complaintsTransmission and drivetrain
10 complaintsOther or unknown
9 complaintsFuel system
8 complaintsVehicle speed control
8 complaints
← All problems reported for the 2008 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