2002 Chevrolet Trailblazer EXT 370 Electrical system Problems
- Complaints
- 2about this part
- Share
- 33%of 6 total for the year
- Median mileage
- 162,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the electrical system of the 2002 Chevrolet Trailblazer EXT 370, 33% of the 6 complaints for this model year. Where a mileage was given, the median is 162,000 miles. 1 of these say a crash was involved and 1 a fire, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I was slowing down as I was entering an intersection and there was traffic in front of me. I suddenly lost all power steering and power brakes and struck the car in front of me. None of the occupants of either vehicle was hurt, per police report. On my way to the collision center near home, the cab of the truck filled suddenly with very black smoke, so thick I couldn't see and had to immediately try to pull off the road. By the time I got to the side of the road there were flames in the cab as well. When I finally got out of the truck my clothes were on fire. …”
NHTSA complaint #10662229, filed 2014-12, 120,000 miles“The `plate light don t work rear wiper dome light won t shut off auto door won t unlock with remote some time door locks auto with out hitting switch this scary all my dash lights come on but don t shut down car pull over an re starter it.”
NHTSA complaint #10643940, filed 2014-10, 204,000 milesRelated service bulletins
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- 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.
- 10225615Oct 19, 2022This service bulletin provides information on Module Harvesting.
- 10083898Apr 27, 2016This preliminary information communication advises the technician if unable to place an onstar call in the ignition on mode after the onstar canada upgrade, to contact the gm…
- 10083484Apr 19, 2016This preliminary information communication provides information to help the dealership technicians perform a parasitic drain test for the onstar module. When performing battery…
- 10078735Apr 19, 2016This preliminary information communication provides information to help the dealership technicians perform a parasitic drain test for the onstar module. When performing battery…
- 10078734Apr 19, 2016This preliminary information communication advises the technician the steps on repairing the concern. A customer may identify a concern of unable to reactivate a vehicle's onstar…
- 10083900Apr 8, 2016This preliminary information communication advises the technician, if unable to place an onstar call in the ignition on mode after the onstar canada upgrade to contact the gm…
- 10190512Dec 1, 2015OnStar® Voice Fallback Number Update Some customers may have received a letter from OnStar® stating that "We recently tried to provide a software update to the OnStar® hardware…
Electrical system: other model years
Other parts of the 2002 Chevrolet Trailblazer EXT 370
2 complaintsBrakes
1 complaintsEngine
1 complaintsFuel system
1 complaintsOther or unknown
1 complaintsSteering
1 complaintsTransmission and drivetrain
1 complaints
← All problems reported for the 2002 Chevrolet Trailblazer EXT 370
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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