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


pretty bad
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
7,420 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 fuel system problems

fuel system problem

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2004 Chevrolet Trailblazer Owner Comments

problem #5

Jan 032007

Trailblazer 4WD

  • Manual transmission
  • 36,000 miles


- the contact owns a 2004 Chevrolet trail Blazer ext with an odometer reading of 40,000 miles. The failure mileage was 36,000. The first incident involved leak in a fuel hose and the second was a crack in the fuel tank. The dealer advised the contact to call and complain to NHTSA since the 2004 are not under the recall, and the 2002 are under recall for the same issue. The dealer had temporarily repaired the vehicle. The contact smells fumes while driving. The fumes are detectable while driving at any speed. The contact did not hit anything to cause the damage. The contact has repair invoices and pictures.

- Lebanon, OH, USA

problem #4

Sep 012005

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • miles
I was just reading the complaints & thought I would submit a few of my own. Gas fillling is always a task as tank always seems to "overflow" & gas sprays out everywhere. I was told it is because of the type of filler line that GM uses. Headlights constantly going from normal to dim, to dimmer, then back to normal, regardless of driving conditions. Saw the one from the person being shocked, this too has always happened to me since the first day I bought the Trailblazer. If I touch the metal of the door upon exiting the vehicle theres a large jolt from static electricity I assume. The arc from this jolt is very visible & I estimate it to 2 inches in length at times (longer your in the vehilce...bigger the arc). All the rubber trim on the backhath has come off. Plastic lining used on fenderwells constantly coming loose & must be reatached. Carpet around pedals has all come loose. I bought this vehicle Nov. 1 2004 & it is hardly been driven with only 6,000 miles yet seems to be falling apart already.

- Washington, IN, USA

problem #3

Dec 122005


  • Automatic transmission
  • miles
I bought this vehicle brand new and since purchase it is in and out of the show with numerous electrical and gas problems. Everytime you put gas in the vehicle it spills out from the underside. The dealership has replace parts pertaining to the fuel system and it has not solved the problem. My radio has been replaced and still does not work properly. My headlights dim up and down, the air blows low and high the interior lights flash off and on the engine runs rough and all these symptoms happen sporadically. It has been in the dealership numerous times and everytime I take it they state they cannot duplicate the problem. This vehicle I feel is a safety issue and I do not feel comfortable putting my family in it. I am currently filing a lemon law complaint with the better business bureau.

- Orange Park, FL, USA

problem #2

Dec 032004


  • Automatic transmission
  • miles
The problem is that my 2004 Chevrolet trail Blazer spits up fuel back out of the fuel tank after filling up the tank. I am not trying to top off. Everytime I fill up, fuel spits back out from the tank after I remove the fuel pump. I have taken my car to the dealer twice now, they are on their third attempt to fix the problem. It happened several times before I took my car in to the dealer. I thought maybe it was the gas station I was using. So I tried several different pumps in different cities and the same thing happened. That's when I decided to take the car in for service.

- Tampa, FL, USA

problem #1

Aug 242004

Trailblazer 6-cyl

  • Automatic transmission
  • 1,100 miles
I have had my vehicle for less than a month and filled it with gasoline 6 times in two cities at different gas stations. I never have topped off the tank, but when the fuel pump handle clicks off, the gasoline pours out from the tank under my vehicle. It never matters how much fuel I put in the vehicle it always "over flows."

- Corpus Christi, TX, USA

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