2002 Chevrolet Trailblazer EXT Other or unknown Problems
- Complaints
- 2about this part
- Share
- 2%of 100 total for the year
- Median mileage
- 127,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the other or unknown of the 2002 Chevrolet Trailblazer EXT, 2% of the 100 complaints for this model year. Where a mileage was given, the median is 127,000 miles.
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.
“2002 Chevrolet Trailblazer Ext. Speedometer sticks and remains at last known speed or stops working completely. Only way to resolve is to turn the vehicle completely off and restart.”
NHTSA complaint #10321579, filed 2010-03, 114,000 milesRelated service bulletins
- 11020816Jul 18, 2025This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
- 11004557Jun 17, 2024This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
- 10079728Jan 15, 201614423c - special coverage (revised service procedure). A fuel tank inlet check valve (icv) could fracture. The icv is located above the full fuel level. A fractured icv could…
- 10079705Jan 12, 201614423b - special coverage (revised part information and service procedure). A fuel tank inlet check valve (icv) could fracture. The icv is located above the full fuel level. A…
- 10201115Dec 1, 2015OnStar Voice Fallback Number Update
Other or unknown: other model years
Other parts of the 2002 Chevrolet Trailblazer EXT
23 complaintsTransmission and drivetrain
20 complaintsElectrical system
14 complaintsEngine cooling
14 complaintsExterior lighting
10 complaintsVisibility (wipers, defrost, mirrors)
10 complaintsLatches, locks and linkages
6 complaintsBody and structure
5 complaintsEquipment
4 complaintsSuspension
4 complaintsAir bags
1 complaintsSeat belts
1 complaints
← All problems reported for the 2002 Chevrolet Trailblazer EXT
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