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.


fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
18,850 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 electrical problems

electrical problem

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2006 Chevrolet Trailblazer Owner Comments

problem #1

May 272007

Trailblazer 4WD 8-cyl

  • Automatic transmission
  • 18,850 miles


We have had two 2006 Trailblazers and both of them have been nothing but problems for us. The first one we brought we owned it for six months and we had it in the shop six times (broken sway bar, heater two times, windshield wiper fluid holder two times, shaky front wheel and motor misfiring. We traded in hopefully to avoid more problems and went ahead after assurance that this one must just be bad and got another 2006 Trailblazer. This one we have only had for 2 months and we're already having problems. Three days after we bought it had to go to the shop for the radio not working properly. Then the engine starting misfiring and the engine light was on and it was running really rough. The tech thought that it was happening because the gas cap wasn't all the way tightened. (when the engine light comes on you loose power and I pulled out in front of a car on the highway and barley moved that's how I found that out.) when he called me back he said that I had two cracked sparks plugs and the battery cable was loose making it start slowly. That was fixed but then 5-27-07 the engine light came on again and it was running rough just like before. It seems like everytime that the engine gets wet that it makes it misfire. I told the dealership this several times now. It had been raining that day. Everytime I take it in for the engine they tell me there is a lot of moisture under the hood on the motor. It's in the shop right now.

- Jefferson City, MO, USA

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