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.


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
71,858 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 EXT lights problems

lights problem

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2004 Chevrolet Trailblazer EXT Owner Comments

problem #9

Mar 112013

Trailblazer EXT 6-cyl

  • 83,000 miles


Lights started flashing, gas gauge went to empty, car died. Restarted drove 1/4 mile died. Stereo system completely failed (whole unit). Keeps popping circuits changed out still doing. Cannot shut off heat due to banging sound. Car speeds up and down on own. Cannot read gas gauge correctly, not sure how full tank is.

- Marblehead, MA, USA

problem #8

Feb 122013

Trailblazer EXT

  • 88,000 miles
I was getting on the expressway & both headlights just stopped working. I drove home with no lights on the front of my car in the dark, very very very unsafe. How do all the lights on the front of your car go out all at the same time.

- Frankfort, IL, USA

problem #7

Jul 022012

Trailblazer EXT 6-cyl

  • 120,000 miles
All gauges on control panel not working, but all service lights come on check engine, ABS seat belt, reduce power, battery lights. Speed and fuel are impossible to know as well as warnings to observe from lights. 2004 Chevrolet trailblazer, speedometer will show a faster speed than you moving or will go to 0 while on the freeway. The tach has the same problem. This is a serious safety issue and it should be recalled now. I heard that they had the same issue on pick-ups and they were recalled. Most instrument backlights have burned out preventing the speedometer and other gauges from being seen at night. Very dangerous. Quick search on internet results in a severe epidemic of this problem with all GM SUV's. a class action lawsuit resulted in a nationwide recall for this problem for all similar vehicles but not the Chevy trailblazer or GMC Envoy. This seems to be a criminal act by GM. Something needs to be done to protect owners of these vehicles. Driving down highway headlights go out..while driving at night the low beam lights went out, I had to drive home with high beams on, check out all these other complaints there are hundreds of them and I am one of many. This is so dangerous and a safety hazard to others as well, please get us a recall on these cars the expenses are tremendous.

- Forsyth, GA, USA

problem #6

Jan 092010

Trailblazer EXT 4WD 6-cyl

  • miles


The RPM gauge, battery gauge and the fuel gauge stopped working. First the RPM gauge stopped and then about a year later the battery gauge stopped and last was the fuel gauge that stopped. The fuel gauge stopped working just a couple of weeks after the battery gauge. I am also having problems with the daytime running lights not staying on periodically. The daytime running lights will go out about twice a year and mainly at night.

- Thomasville, NC, USA

problem #5

Jan 012011

Trailblazer EXT 6-cyl

  • 17,000 miles
Headlights will not work. Daytime running lights don't work. The issue was addressed by Chevy dealership. This is a on going problem. Other Chevy and GM SUV had been recalled for this issue however this model was not included within the recall.

- Menifee, CA, USA

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problem #4

Apr 102010

Trailblazer EXT

  • 74,000 miles
My headlamps keep flickering off. At this time they don't come back on. For about 7 months they would go off and I would have to pull over and shut vehicle off. It would come on after I let it sit for a minute. Now they shut off and will not come back on.

- Zanesville, OH, USA

problem #3

Aug 072010

Trailblazer EXT 4WD 6-cyl

  • 167,723 miles


Low beams went off as I was driving down rural roadway. This was at 10:45 at night on my way to work. Had too sit by side of road for some time with no lights. Finally came back on. This has happened 4 other times since then. I live in a rural area, when the lights go out there are no street lights around to illuminate the roadway. I have had 2 near crashes due to the darkness of the area in which I was traveling. There are no codes being thrown when this occurs, no warnings, the lights just go out. Unable to locate failure point. High beams, turn signals, parking lights work, just not low beams.

- Granger, WA, USA

problem #2

Feb 252009

Trailblazer EXT

  • 53,000 miles
Brake lights went out all the time waiting on response.

- Trussville, AL, USA

problem #1

Jun 172008

Trailblazer EXT

  • 44,000 miles
Starting June 17, 2008, the low beams on my 2004 Chevrolet trail Blazer lt go out intermittently - the high beams, fog lights, hazard lights, and turn signal lights still work - only low beams causing problems. I keep my lights setting in the postion that they come on when I start my car. I consider this a safety factor. The lights will go out suddenly. I can only document one time that they went out during the day time, but have documented seven (7) times that the lights went off at night. The next space on this form asks for the approximate incident date - I put down the first time. As stated above this has happened seven times at night and at least one time during the day. I can only tell during the day time if I am stopped at a traffic signal behind another vehicle and I only have 2 traffic signals between my home and work. I took my car to sandy sansing Chevrolet, pensacola, Florida, on June 23, 2008, they said they checked my car for three hours but could not find problem. I would need to bring it in when the lights go out. Unfortunately, the only time I could tell they had gone out during the day time, I was stopped at a traffic signal and before the light turned green, the lights came back on. (my 16 year old grandson was in the car with me and can verify that this happened. In fact he and another grandson was in the car on the night of July 1, 2008, when the low beams went out while I was driving down the road on the way home from the baseball game.

- Pensacola, FL, USA

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