Print this page Notes: The 2002-2007 Chevrolet Trailblazer is known for many things, but perhaps it is most famous for its faulty fuel gauge.

This gauge flip-flops more than a politician during election season. Some report that the gauge says "empty" after a fill-up, while others report the gauge says "full" when they're running on fumes. Either way, there's one thing everyone seems to agree on: the darn thing is just wrong.

Following hundreds of complaints and a few accidents allegedly caused by the malfunction, the National Highway Traffic Safety Administration (NHTSA) opened an investigation into the issue in May 2011. Unfortunately for frustrated owners, no recall has been announced.


pretty bad
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
8,365 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.

2005 Chevrolet Trailblazer AC / heater problems

AC / heater problem

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2005 Chevrolet Trailblazer Owner Comments

problem #3

Aug 302008


  • 25,025 miles


Turned vehicle on and found A/C blower not working and ABS and brake light come on. Blower will come on intermittently when the bas / brake light goes out. I am concerned that if there is a short in the system there could be a fire. Chevrolet should be taking care of this concern for the owners.

- Racine, WI, USA

problem #2

Feb 282005

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • 70 miles
The contact owns a 2005 Chevrolet Trailblazer. Since purchasing the vehicle, the headlamps flicker or dim while driving, similar to a power surge. The dealer was initially unable to duplicate the failure. When the failure was able to be duplicated, the dealer was unable to make a repair. At the end of September of 2007, the steering column made a sparking sound and the dealer could not duplicate the failure once more. On September 20, 2007, the radio and all the components on the instrument panel failed intermittently. The vehicle had to be turned off and restarted for them to eventually operate again. In addition, the dome lights would remain illuminated. The driver's side door latches were replaced twice. The rear hatchback latch was replaced twice. When the key was removed from the ignition, the key buzzer would continue to sound. On January 25, 2008, the rear wiper motor was replaced and failed again on March 4, 2008. The current mileage was 36,182 and failure mileage was 70. Updated 4/2/08 the consumer stated the emblem on the rear tailgate loosing color, brake pads and rotors are worn. Updated 04/02/08

- Canton, NY, USA

problem #1

Mar 072007

Trailblazer 4WD

  • Automatic transmission
  • miles
In March 2007 the check engine light came on and stayed on. I took vehicle to dealer to have it checked out. It turned out to be the secondary air pump either clogged, not running or something electrical with it. Ever since then all the exterior and interior lights became bright then dimmed for a few minutes when I start the vehicle. After leaving for work and stopping the vehicle to turn, and then again a few miles down the road, the headlamps started to flicker. Sometimes it flickered a few more times before I got to work, only 25 minutes from home. I have noticed the battery gauge fluctuated while this is happened. I was told that this was normal. Also, I am not sure this was related, but ever since the check engine"light problem the air conditioning system did not work properly. It didn't work on 5, but it did blow some on the other levels, and that varied too. I have had the air conditioning recharged, to no avail, it acted like there was a leak somewhere. Hopefully, GM or someone else will find the solution before there was an electrical fire or even a case of road rage due to other drivers thinking I wa S flashing the bright lights at them.

- Woodland, MI, USA

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