AI Damage2002 Chevrolet Trailblazer EXT 370 reliability: common problems
Owners of the 2002 Chevrolet Trailblazer EXT 370 filed 6 complaints with NHTSA, most often about electrical system and exterior lighting. Details by component below, with sources.
Key figures
- Owner complaints
- 6
- involving a crash
- 1
What fails most often
- 1 Electrical system 33% of all complaints
- 2 Exterior lighting 33% of all complaints
- 3 Engine 17% of all complaints
- 4 Fuel/propulsion system 17% of all complaints
- 5 Powertrain 17% of all complaints
- 6 Service brakes 17% of all complaints
- 7 Steering 17% of all complaints
- Electrical system: 2 complaints (33% of all), 1 of them with a crash reported by the owner.
- Exterior lighting: 2 complaints (33% of all).
- Engine: 1 complaints (17% of all).
- Fuel/propulsion system: 1 complaints (17% of all).
- Powertrain: 1 complaints (17% of all).
Symptoms owners describe
How many of the 6 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 2 | 1 | 0 |
| Exterior lighting | 2 | 0 | 0 |
| Engine | 1 | 0 | 0 |
| Fuel/propulsion system | 1 | 0 | 0 |
| Powertrain | 1 | 0 | 0 |
| Service brakes | 1 | 1 | 0 |
| Steering | 1 | 1 | 0 |
| Other | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
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…
I was driving down the road and all of a sudden my headlights go completely out. No other lights went out I continuously flicked them back and forth and finally my bright lights works to get me home. Next day they work fine again then 2 days later same thing happens.
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.
I have to put gas in slowly. If I squeeze the pump trigger to much the gas spits back out and all over me. I also have to hold the pump trigger upside down. The gas line on the vehicle was taken apart and everything was fine.
I have a 2002 trailblazer, the transmission just went out on it. I only have 75,000 mile and after doing some research have found out that I'm not the only one that has had this problem. Just on goggle there are 97,100 hits for transmission problems with the trailblazer.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 12,234 of 32,257 model years in the NHTSA data (top 38% most complained about).
On average one model year of the Trailblazer EXT 370 has 58 complaints (5 years in the data). This year has 6, below average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Exterior lighting. Headlamps, leveling, sensors and mounts after a frontal hit.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Fuel/propulsion system. Fuel smell, leaks, rough running, fuel-system codes.
Other years of this model
Questions and answers
What are the most common problems with the 2002 Chevrolet Trailblazer EXT 370?
Owner complaints to NHTSA most often mention: electrical system, exterior lighting, engine. Total complaints: 6. The most frequent symptoms in complaint texts: door locks, latches, handles (17%), headlights and tail lights (17%), smoke, burning smell, fire (17%).
How many service bulletins (TSB) were issued for the 2002 Chevrolet Trailblazer EXT 370?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2002 Chevrolet Trailblazer EXT 370 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2002 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-06.