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 2 of 19)

« Read the previous 20 complaints

problem #341

Jan 052010


  • miles


My headlights and blinkers and tail lights go out quite often and need to be changed. Sometimes they will go off for awhile, then start working again. I wish I had a count of how many times I have had to have the bulbs changed, but I did not keep track.

- Rochester Hills, MI, USA

problem #340

Sep 012010


  • miles
Speedometer no longer works. Lots of electrical issues with this car.

- Rochester Hills, MI, USA

problem #339

Nov 102009


  • miles
The front passenger window will not go up or down. Many electrical issues with this car!

- Rochester Hills, MI, USA

problem #338

Jul 012014

Trailblazer 6-cyl

  • 101,000 miles


Speedometer stopped working, or would show incorrect speed. Has continued this problem to current date.

- Eldersburg, MD, USA

problem #337

Dec 162014

Trailblazer 4WD 6-cyl

  • 75,536 miles
I was driving this morning 12/16/2014 at 50 mph when I noticed my dash lights, headlights fluctuating also my voltage gauge. No matter what I did it didn't change the state of the problem. The vehicle has had the gauge cluster replaced before I bought it and the battery.

- Fort Atkinson, WI, USA

problem #336

Sep 172014


  • 136,000 miles
The contact owns a 2004 Chevrolet Trailblazer. The contact stated that the low beam headlights turned on and off without warning. The failure recurred on several occasions. The contact also stated that the low beam headlights failed and there was a burning smell in the vehicle. The vehicle was taken to an independent mechanic who diagnosed that the fuse box and wiring burned and needed to be replaced. The vehicle had not been repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 136,000.

- Mechanicburg, PA, USA

problem #335

Oct 242014


  • 156,000 miles


The headlight socket (low beam) on the drivers side melted and nearly caught fire. And the RPM gauge stepper is messing up.

- Bartlesville, OK, USA

problem #334

Oct 012012

Trailblazer 4WD 6-cyl

  • miles
Speedometer and gauge panel not working. No gauges move to show speed, gas level, battery level, temp.

- Pgh, PA, USA

problem #333

May 022014

Trailblazer 4WD 6-cyl

  • 49,000 miles
While driving fuel level gauge jumps up and down from empty to full. It stays at what ever level it wants to. You cannot be certain how much fuel is in gas tank at any certain time!

- Cheektowaga, NY, USA

problem #332

Jun 042014

Trailblazer 6-cyl

  • miles
No accident. This is a part recall. I was wandering if there is a recall on the fan control module. I seen where the one I have on my car is replaced with a new type. My fan now only works on one speed. The other 4 speeds will not work. It is very upsetting, it will only work on the 4th speed. I bought one to replace the old one but it will not work on my car. What is the number I should be using. If this is a GM free replacement please send me one. Thanks. My husband is a retired GM worker.

- Hamilton, OH, USA

problem #331

Oct 182006

Trailblazer 6-cyl

  • 22,000 miles


The problems started in 2006 and were very intermittent. There is an electrical issue with the instrument panel, lights, battery, and other unknown items. The dealer check the electrical system when it started, but could not find any problem. Sometimes, while driving at night the lights went off, and I would have to pull off the road, check any fuses and relays, and then they would come back on. The next electrical issue was with the speedometer, which on a trip across to Florida it would be erratic and indicate I was traveling over 120 miles an hour when my gps said I was driving at 65. After the warranty expired I have had issues with replacing multiple batteries which go dead every 4 or 5 days depending on usage. After the speedometer stopped working, each other instrument panel item worked on and off. This includes the gas tank gauge, the ammeter, the temperature gauge, tachometer, and the oil pressure gauge. They all worked on and off for the next 3 years, and now none of these very important instrument panel gauges have worked for over 2 years. I wonder if the electronics that effect the air bags would work if I ever have an accident. I have replaced many batteries, I still have to charge each one every 4 or 5 days or I cannot start the truck. I have checked online and there are thousands of Trailblazer, and their related GM vehicles with the same problems. I hear that a recall was issued for the GMC-Envoy which is the same related parts vehicle but there is not one for the Trailblazer? I am dealing with these issues and hoping for the recall that we all have been waiting for. Thank god I have a 97 Toyota Camry that runs well. I wish [xxx] would read this. I also have photos of the non-working instrument panel, and the 120mph speedometer. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Port St. Lucie, FL, USA

problem #330

Mar 012013

Trailblazer 6-cyl

  • 90,000 miles
The gauge cluster stopped working. I have no speedometer, no temp sensor, no oil pressure, and no battery charge.

- Lake Charles, LA, USA

problem #329

Jul 302014

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • 192,000 miles
TL * the contact owns a 2004 Chevrolet Trailblazer. The contact stated that the power window and lock on the driver side door were inoperable. The vehicle was taken to the dealer for diagnostic testing, but was not repaired. The VIN was excluded from NHTSA campaign number: 13V248000 (electrical system, visibility). The manufacturer was not notified. The failure mileage was 192,000. Updated 12/09/14

- Cincinnati, OH, USA

problem #328

Jul 142012

Trailblazer 6-cyl

  • 42,950 miles
I can start my vehicle and the gauges started sticking. I am constantly being shocked by the driver door. My gauges no longer work at all and have completely went haywire. I have no dash lights. My vehicle has just died in the middle of a busy street. I do not know how much fuel I have, how fast I am going. My cruise control either at times increases my speed or does not hold the speed. I have to use a gps device to know approximate speed. This vehicle needs to be recalled. I love my vehicle but it has tons of issues.

- Elk City, OK, USA

problem #327

Jan 032011


  • miles
I bought my vehicle at a dealership in 2010. I do not remember the exact date but it started having problems shortly after. The first thing that happened was all my gauges stopped working except my speedometer. In 2012 I was driving and at two different occasions within a day apart, while I was turning into a parking lot or gas station, my vehicle would shut off. I took it to auto zone to have one of those free tests done and nothing was showing up as abnormal. Around 2013 my vehicle started making a real high pitch squealing sound during start up and while driving. I took my car into since it needed a new water pump and they said that the high pitch sound could be fixed but wasn't a safety concern. In 2014 just a few months ago, again I was pulling into a gas station and my vehicle turned off. I was able to turn it back on and have enough time to pull into a spot before it shut off again. This time it wouldn't start my keys were stuck in the ignition and it could not be jump started. After taping the battery the keys came out of the ignition. It starts now but none of the electrical inside the vehicle works. At this point it's not drivable because of the temperature outside and the fact that I can't roll down my windows and the air blows only hot. The stereo doesn't work, the seats to move forward and back do not work. The back brake lights work but the tail lights while driving do not work. The front headlights work.

- Glen Rock, PA, USA

problem #326

Jul 132014

Trailblazer 6-cyl

  • 128,000 miles
Truck cut off while in park. Smelt burning smell, and noticed smoke coming from under the hood. Someone raised the hood and noticed the computer electrical box was burning. The cover was melted through from the burning. The vehicle was off and then started back up on it's own. Security lights in dash came on. Vehicle could not be driven. I read on google website that some vehicles had recalls for electrical problems. A Chevrolet place in lynchburg va told the service department where I purchased the vehicle that there were no recalls. That is not what I read on the internet. Me and my daughter and 3 others could have died if this vehicle had of exploded. I would really appreciate some help in this matter. Thanks

- Hurt, VA, USA

problem #325

Jul 012014

Trailblazer 6-cyl

  • 140,000 miles
I was driving along on the highway and doing the speed limit. I hit traffic and checked my check my gas gauge and noticed that my speedometer was reading 120 at full stop. I turned off and then back on the truck and the speedometer still pinned at 120. This is a major safety issue and they need to address it. I called Chevy and they said that there is nothing they can do, but charge me 900 for a new dash cluster.

- Woodbury Heights , NJ, USA

problem #324

Jan 022012

Trailblazer 6-cyl

  • 108,000 miles
Many times while driving this SUV, the engine has just shut off. It will start right back up. However it is scary and we have tried to figure this out for quite some time now. The worst time was when I was getting on a busy interstate and the car cut off. I don't know if the vehicle was doing this prior to our purchase. I can not get any information from carmax in regard to this. It is well maintained and due to this, I rarely take it out on the road anymore.

- Salisbury, NC, USA

problem #323

Nov 302011

Trailblazer 6-cyl

  • 40,000 miles
Beginning with the tachometer in 2011, the remaining gauges on the instrument panel cluster have proceeded to stop working over the next two plus years to the point that none of them work anymore (including the speedometer). We have no idea how fast we are driving nor do we know the status of our fuel level.

- Huntington Beach, CA, USA

problem #322

Mar 012013

Trailblazer 6-cyl

  • 100,000 miles
The dash control panel has stopped working or only certain items showing speed, temp and oil pressure work on occasion. After searching online for repair options there are a number of complaints for the same problems for this specific vehicle.

- Knoxville, TN, USA

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