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.

Print this page Notes: It would be ill-advised to blaze any trails with the 2004 Trailblazer. Its faulty fuel gauge could leave you stranded.


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
62,167 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.

2004 Chevrolet Trailblazer accessories - exterior problems

accessories - exterior problem

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2004 Chevrolet Trailblazer Owner Comments

problem #3

Sep 282011


  • 90,000 miles


The contact owns a 2004 Chevrolet trail Blazer. The contact stated that the heating and air conditioning fan control would not work until it reached level four of the five settings. In addition, the speedometer was inoperable. The vehicle was not repaired. The failure mileage was 90,000.

- West Newton, PA, USA

problem #2

Nov 182009


  • 80,000 miles
The front air vents in my 2004 Trailblazer quit working after I installed a new battery. My front air vents will no longer work. After researching this on the internet it appears that this is a common problem with the Chevy Trailblazer. It will require the purchase and installation of a new control module to regulate the air flow so the vents will work. This is a component/design problem that GM needs to fix not the consumer.

- Middlesboro, KY, USA

problem #1

Jan 202006

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • 16,500 miles
: the contact stated the headlights dim without warning. The problem occurs intermittently and has increased over time. Upon inspection the dealership determined the problem is related to the defroster in the ac compressor. The dimming of the headlights is normal for the vehicle. Updated 02/24/06

- Bumpass, VA, USA

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