Most common 2002 Chevrolet Trailblazer EXT 370 problems
Share of the 6 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Chevrolet Trailblazer EXT 370 complaints by model year
Best Trailblazer EXT 370 years: 2002, 2003. Years to avoid: 2005. Compare all years →
NHTSA defect investigations
Federal safety investigators have looked into 3 possible defects involving the 2002 Chevrolet Trailblazer EXT 370:
Fuel tank leak
In June 2007, GM will expand its special policy to address fuel tank inlet check valve (icv) fractures on certain model year (my) trailblazer ext and GMC envoy xl vehicles.the expanded policy covers my 2002-2004 trailblazer ext, GMC envoy xl, and GMC envoy xuv vehicles and will extend for a period of 10 years or 150,000 miles (whichever comes first).GM will provide free repair of the fuel tank.
Fuel pump module leaks gasoline
Odi has received reports that the fuel pump module leaks fuel and or vapor underneath the vehicle.GM states, the failure mechanism is corrosion of the fuel pump module flange which May lead to a fuel leak.corrosion of the fuel pump module flange is the result of the vehicle operating in a corrosive environment.odi has upgraded this pe to engineering analysis (ea07-009) to further assess this issue.
Fuel pump module leaks gasoline
During the course of this ea investigation, odi observed that the majority of the complaints (88%) and warranty claims (94%) were reported for vehicles that are registered for use in the salt belt region of the us.this area includes 20 states in the northeast, mid atlantic and the midwest regions and the district of columbia.consumers in the salt belt region reported to odi that they could smell fuel vapors in their…
Frequently asked questions
Is the 2002 Chevrolet Trailblazer EXT 370 a good car?
Based on 6 owner complaints filed with NHTSA, the 2002 Trailblazer EXT 370 rates average: 68% fewer complaints than a typical year of the Trailblazer EXT 370 at the same age. It is one of the best Trailblazer EXT 370 years by this measure. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2002 Chevrolet Trailblazer EXT 370?
The electrical system — 2 complaints, 33% of all complaints for this model year. Next are the lights (2) and transmission & drivetrain (1).
How many recalls does the 2002 Chevrolet Trailblazer EXT 370 have?
NHTSA lists no recalls for the 2002 Chevrolet Trailblazer EXT 370. You can still confirm with your VIN using our VIN recall check.
What are the best and worst years of the Chevrolet Trailblazer EXT 370?
The best years by complaints, compared at the same age, are 2002 and 2003. Years to avoid or approach with caution: 2005. See the full Chevrolet Trailblazer EXT 370 years comparison.
At what mileage do 2002 Chevrolet Trailblazer EXT 370 problems happen?
The median mileage reported in complaints is about 120,000 miles; 0% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.