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.


really awful
Crashes / Fires:
3 / 10
Injuries / Deaths:
5 / 0
Average Mileage:
65,344 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 electrical problems

electrical problem

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2004 Chevrolet Trailblazer Owner Comments (Page 1 of 19)

problem #361

Aug 242016


  • 185,600 miles


Oil pressure gauge drops to zero causing "check gauges" light to come on and engine to stall when the A/C is running and am stopped at a light in the city. This only occurs once during a trip or once a month. Understand that Trailblazers have a history of gauge problems and electrical issues. Chevrolet needs to issue a recall for electrical wiring/gauges.

- Columbia, MO, USA

problem #360

Aug 102016


  • 131,000 miles
When turning the ignition switch off from the run position while in park, the switch slips into the accessories position with no effort to turn the key. Truck will not turn off of assesoriy position until I wiggle the key for a while. The key can be removed after turning off truck but remains on assesory. Happens every time. Been doing this for a week now.[8-03-16 to present]

- Lockport, NY, USA

problem #359

Jul 102013


  • 75,000 miles
The contact owns a 2004 Chevrolet Trailblazer. The contact stated that the windows failed to open or close. The vehicle was taken to the dealer where it was diagnosed that the master window switch was defective and needed to be replaced. The manufacturer was made aware of the failure. The vehicle was not repaired. The failure mileage was 75,000.

- Mays Landing, NJ, USA

problem #358

Jul 162016


  • 128,000 miles


3rd time replacing low beam light only high beam works now low beam out again

- Dallas, TX, USA

problem #357

Apr 182016


  • 197,000 miles
Electrical fire started in driver door while truck was parked and not running. It was a total loss.

- Grayling, MI, USA

problem #356

Mar 172016


  • miles
Driving on hwy 178 at about 9 pm and the front head lights and turned completely off. I moved light switch on and off and my light would not go back no on.....also while driving the kern canyon hwy 178 taking the curves my ingine shut off and steering and brakes locked up this has happened several time while driving at 20 mile speed.

- Wolford Hghts, CA, USA

problem #355

Jan 162016


  • 155,000 miles


The contact owned a 2004 Chevrolet Trailblazer. After plugging in a tire inflator into the cigarette lighter port, the vehicle filled with black smoke. In addition, the contact smelled a burning odor. The contact immediately removed the tire inflator from the port and shut the engine off which stopped the vehicle from smoking. The vehicle was towed to a dealer where it was diagnosed that the fuse box, wiring harness, and various other internal components melted. The vehicle was destroyed. The manufacturer was not made aware of the failure. The failure mileage was 155,000.

- North Berwick, ME, USA

problem #354

Dec 262015


  • 170,000 miles
Upon starting the vehicle the instrument panel does not work properly. The gauge indicators all spike and do not accurately represent what is going on. For example it does not show how fast I'm going or how much fuel is in the vehicle. This is an extreme safety hazard.

- Duluth, GA, USA

problem #353

Aug 042009


  • 120,000 miles
The contact owns a 2004 Chevrolet Trailblazer. While driving at any speed, the RPM light illuminated and the speedometer failed to operate. The failure recurred numerous times. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 120,000.

- Mexico, MO, USA

problem #352

Jul 042014


  • miles
The contact owns a 2004 Chevrolet Trailblazer. The contact stated that while driving at 25 mph, the vehicle lost interior and exterior lighting. The contact stated that the low beam headlights failed which caused the contact to crash into a creek. A police report was filed. The contact was not injured in the crash. The vehicle was towed to the contact's residence. The vehicle was not repaired. The manufacturer was not notified of the failure. The VIN and failure mileage were not available.

- Nitro, WV, USA

problem #351

Aug 262015


  • 150,000 miles


Ignition key would not turn off and was locked to "on" position. I had to take it to a local service station where they installed a replaced the key cylinder for the cost of $345. I believe this may be related to the earlier recall of other GM models recalled due to ignition issues. I did not contact the dealer as I needed to get it repaired in a timely manner.

- Springfield, VA, USA

problem #350

Apr 222015

Trailblazer 4WD 6-cyl

  • 123,000 miles
It was raining went to turn on the back wiper blade and all I heard was a pop and the fuse blew, a few miles down the road engine still ran, but check engine light, airbag light, battery light, most of the instrument panel was out, the radio turned off, windows would not open and doors automatically unlocked, got to a safe spot to stop turned the Blazer off let it set turned it back on, check engine light still on all the others went out and the windows opened when I hit the button. When one fuse cost 8.00 and blew as soon as I put it in, I can't afford to fix all this, and I am afraid to drive it on the expressway which is how I get to work, just in case of fire or additional problems.

- Flint, MI, USA

problem #349

Jun 012010

Trailblazer 4WD 6-cyl

  • miles
Instrument cluster panel completely gone crazy. All gauges are out of control. I am not able to tell my speed and some of the lights come in the panel while the truck is off. Have to disconnect the battery to make sure the thing will not catch fire.. this issue really needs to be investigated due to a possible fire hazard.

- Columbus, GA, USA

problem #348

Nov 012013

Trailblazer 6-cyl

  • 100,000 miles
The instrument panel failed. The speedometer reads between 60 (at a stop) and >120 (highway speed). The tachometer arm points straight down at all times. I am planning on replacing it myself, knowing a recall will take too long for me to wait because of the obvious safety concerns. I have read many forums and talked to others with GM vehicles around this year. I know of the recall on the 2002 models and it seems GM didn't try that hard to fix future models. Please fix this safety concern and save other's money and, more importantly, lives because of this carelessness displayed by GM.

- Colorado Springs, CO, USA

problem #347

Mar 112015


  • 180,000 miles
The contact owned a 2004 Chevrolet Trailblazer. While at an automated car wash, the driver side window switch short circuited without warning. As a result, flames appeared and engulfed the vehicle. The vehicle was destroyed. A fire report and a police report were filed. Both the contact and the passenger suffered smoke inhalation that required medical attention. The manufacturer was made aware of the failure. The contact was made aware of NHTSA campaign number: 13V248000 (electrical system, visibility); however, the VIN was not included. The failure mileage was 180,000.

- Grove City, PA, USA

problem #346

Jan 152015

Trailblazer 4WD 6-cyl

  • 124,000 miles
Speedometer and other dashboard gauges are getting stuck and no longer operating. I am told that the electrical component - instrument cluster is the cause, I have also been told that this is very frequent occurrence with these GM/Chevrolet models.

- Willoughby, OH, USA

problem #345

Feb 092015

Trailblazer 4WD 6-cyl

  • 163,000 miles
The contact owns a 2004 Chevrolet Trailblazer. While at a stop, the contact noticed that the tail lights failed to illuminate. In addition, when the key was turned to the off position, the vehicle remained on. The vehicle was taken to a dealer. The technician diagnosed that both tail light strips needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failures. The failure mileage was 163,000. Updated 4/27/15 the consumer stated both tail lights failed, the stop light on both sides, and the brake lights. Ignition wire was burned. Updated 10/9/15

- Ocala, FL, USA

problem #344

Feb 052007


  • miles
Rear windshield wiper does not work.

- Rochester Hills, MI, USA

problem #343

Nov 072014

Trailblazer 4WD 6-cyl

  • 54,344 miles
In novemeber 2014 I started the car and I had no gauges(gas, temperature, oil, RPM. Mph, and the mileage display) the other electric components worked, like the radio and the small orange light for AWD. I took it to my mechanic twice, but it never acted up for him. It happened twice again in December, but it really acted possessed in Jan 2015, some of the gauge needles were going round in circles, and some were not moving at all, so we were able to take a video of some of it, and show our mechanic. He called us today and said he is following a lot of burnt wires, and our car could have caught on fire. I thought this potential fire hazard should be reported.

- Valparaiso, IN, USA

problem #342

Dec 212014

Trailblazer 6-cyl

  • 134,000 miles
Well I bought this SUV used from americas carmart in gadsden Alabama.they have a 100 plus lots and advertise good used qualtiy cars..when I bought the SUV I wanted to take it to the Chevy dealer but was told their on site certified mechanic checked it all out and with the service agreement thought I was ok....had it two days and the transmission went out..the suspension was also an issue then 12/21/2014..going past 50 it shook like crazy....and then the transmission was slipping againi purchased a service agreement for $ covers what my problems are...but the contract says they can use non manufacter parts which is fine...when I brought it to them with the transmission..they put a junkyard salvage transmission with 100.000 miles on it...when I called them in December about the shaking and suspension and the transmission...they said bring it in...I asked them where they were going to take it..they refused to tell me...and I told them I didn't want a junkyard suspension or transmission as per contract was not suppose to happen..I also asked for a certified mechanic to do the work...they said they would see what they could do.I do a lot of driving in Tennessee..alot of mountain driving and I was not going to have the front end {ball joints, etc go out there..not real safe..they came and got the car...I thought they were going to fix it as agreed...that was on the 8th of they say they are going to sue me for the remaining balance....I just want to call attention to this SUV as it is not safe..and its my opinion they do this a lot to other people...I wanted to draw this to your attention as I would feel bad if I heard of someone getting seriously hurt..due to their inability to sell quality used cars as they advertise...and believe their practices on repairing these cars with a service agreement gets checked into..I filed a complait w/the ftc and agoffice.

- Gadsden, AL, USA

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