Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety. Notes: The Trailblazer emerged from an "upscale trim line" of the Blazer, but there's nothing upscale about its transmission problems or its wonky, unpredictable headlights.


fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
13,655 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2002 Chevrolet Trailblazer electrical problems

electrical problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2002 Chevrolet Trailblazer:

Unsubscribe any time. We don't sell/share your email.

2002 Chevrolet Trailblazer Owner Comments

problem #6

Oct 032004

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • 40,000 miles


I brought this car on August 14, 2004. At 2 months the vehicle stop working. I call the dealership and told them what was happening. They told me that it was a battery problem and the insurance I had got with them did not cover it. So then I decided to purchase a insurance that would cover that. They charged me one thousand dollars. Later they called me to tell me that I did not qualified for the insurance. They didn't return me the one thousand dollars I had gave them. Since the beginning the sales person lied to me. He told me that the vehicle was 2003 but it is really a 2002. The transmission to my vehicle does not work. I want to cancel the purchase of this car.

- Houston, TX, USA

problem #5

Nov 112005

Trailblazer 6-cyl

  • Automatic transmission
  • miles
Tie rods, multiple transmission module problems, airbag, taillights, stop, turn signal rear problem, electrical/ wiring, radio, HVAC, pressure control,2 batteries, 2 fan clutches, among other problems.

- Newnan, GA, USA

problem #4

Sep 202003

Trailblazer 4WD

  • Automatic transmission
  • 37,000 miles
The brake light circuit board melted which caused the brake lights to go out. The brake light bulb has been replaced twice. The consumer stated the wiper motor failed. The battery was replaced because the vehicle would not start.

- Stratford, CT, USA

problem #3

Sep 112003


  • miles


Consumer stated battery leaking acid. Consumer had notified the dealership.

- Little Rock, AR, USA

problem #2

Feb 182002

Trailblazer 6-cyl

  • 4,928 miles
Problems with air bag dash light, fast engine idle, air conditioner, rear hatch inner strap broke, etc... the airbag light was intermittent. The sir module was replaced, and there was poor terminal connection at the sir wiring harness, and was traced/repaired on the left side impact connector and the codes were cleared. The engine idled fast(especially at start up, and the fuel mileage was 13 mpg. The results of the evaluation and repairs were: Passenger impact connector was loose(repositioned/connected), idle within specifics, the emblem had fallen off, the rear hatch inner strap had broken, the transmission seemed to take long to shift into gear(happened sometimes when cold), and the PCM needed to be reprogrammed(J6355 power train controller PCM). There was a thumping sound in the rear differential when shifted, the A/C would blow out cold air when the A/C indicator was off, hot air would come out of the defroster area on the dash when the indicator was set for heater on the floor, the engine made a tapping sound, the lift gate weather strip had come apart, and the battery kept losing charge(3 occurrences).

- San Antonio, TX, USA

problem #1

Aug 012002


  • Automatic transmission
  • miles
Due to electrical failure the mirror, driver"S seat and driver"S side door malfunctioned.

- Laurel , MD, USA

Not what you are looking for?