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.


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
56,667 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.

2006 Chevrolet Trailblazer accessories - interior problems

accessories - interior problem

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2006 Chevrolet Trailblazer Owner Comments

problem #3

Jun 132012


  • 132,000 miles


I bought my Trailblazer (which I love) in the spring of 2012. A few months after purchasing the vehicle I came to learn that the horn no longer worked. I know the horn worked when I purchased the car because I checked it. I brought it in to a well renowned repair shop and they told me that their findings after looking it up was that there is a slight glitch with the horn and that, like other forms had stated, the more you use it the better chance of getting it to work. The mechanic said that he was reading that other people were having the same problem and that the horns on these Trailblazers needed to be massaged a little in the corner and the would work again. He said they got it working. I have yet to be able to get any noise out of my horn at all. This concerns me because of the safety issues that can arise with the lack of a horn to get someone else's attention if need be.

- Waite Park, MN, USA

problem #2

Aug 142008


  • 38,000 miles
Horn button in steering wheel becomes progressively more difficult to actuate, eventually failing altogether. Horn can no longer be sounded by pressing on air bag cover on steering wheel. Consequence is inability to sound a hazard warning to other vehicles during an emergency, which can render a collision unavoidable. Defective or misadjusted horn button switch is proven as root cause because horn can still be activated by remote key fob.

- Cedar Rapids, IA, USA

problem #1

Aug 192007

Trailblazer 6-cyl

  • Automatic transmission
  • miles
Horn doesn't always work. Seems to be a shortage.

- Oxford, NC, USA

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