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: The 2002-2007 Chevrolet Trailblazer is known for many things, but perhaps it is most famous for its faulty fuel gauge.

This gauge flip-flops more than a politician during election season. Some report that the gauge says "empty" after a fill-up, while others report the gauge says "full" when they're running on fumes. Either way, there's one thing everyone seems to agree on: the darn thing is just wrong.

Following hundreds of complaints and a few accidents allegedly caused by the malfunction, the National Highway Traffic Safety Administration (NHTSA) opened an investigation into the issue in May 2011. Unfortunately for frustrated owners, no recall has been announced.


really awful
Crashes / Fires:
4 / 9
Injuries / Deaths:
3 / 0
Average Mileage:
61,926 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.

2005 Chevrolet Trailblazer electrical problems

electrical problem

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2005 Chevrolet Trailblazer Owner Comments (Page 7 of 20)

« Read the previous 20 complaints

problem #278

Dec 222011


  • 75,000 miles


The contact owns a 2005 Chevrolet trail Blazer. The contact was driving 65 mph when she noticed that the speedometer was providing an inaccurate reading of 100 mph. The vehicle was not taken to the dealer. The manufacturer was contacted but provided no assistance. The failure mileage was 75,000 and the current mileage was 82,000. The VIN was not available.

- Collierville, TN, USA

problem #277

Jul 182010


  • 100,000 miles
The contact owns a 2005 Chevrolet Trailblazer. The contact stated that all of the gauges on the instrument panel malfunctioned. The vehicle was taken to the dealer who diagnosed that the instrument cluster needed to be replaced. The manufacturer was made aware of the failure who did not offer any assistance. The vehicle was not repaired. The failure mileage was 100,000 and the current mileage was 149,000.

- Allendale , MI, USA

problem #276

Jan 012011


  • 65,000 miles
The fuel gauge does not work. This seems to be a very common problem, and GM's only remedy is to screw over consumers by making them pay for a known defective part out of pocket. This should be recalled and fixed at GM's expense, or they should at least offer a discount. Their $800 estimate is silly.

- Pulaski, WI, USA

problem #275

May 092009

Trailblazer 4WD 6-cyl

  • 76,000 miles


At the time of purchase the owners noticed the rear brake lights did not work. The owners immediately return the car to the place of purchase for replacement of the brake lights. Several weeks later there was an issue with the vehicle speakers and that seemed to indicate an issue with the electrical in the car. While listening to the radio at any volume (low, medium or high) a high pitch, frequency or reverberation would happen. This is only when the radio is played, not when listening to cd's. the temporary solution is to firmly hit the middle arm rest to stop the reverberation. It's an annoyance but could potentially lead to other electrical issues and enormous costs. Please advice of either safety recalls, defects and possible service repair to the vehicle.

- Antioch, TN, USA

problem #274

Mar 012012

Trailblazer 6-cyl

  • 84,000 miles
While driving to work my cruise control shut down and my speedometer stopped working. A couple weeks later the speedometer began working and now it has stopped again and stuck on 55 and doesn't move regardless if the vehicle is on or off. The cruise control won't work. I am very frightened to continue driving without knowing what speed I am driving. I can't afford to keep spending money on this vehicle to repair all the problems it's had. Wondering if the speedometer is covered under my 100,000 mile warranty. Please help.

- Amherst, NY, USA

problem #273

Mar 022012

Trailblazer 6-cyl

  • 71,000 miles
Both the speedometer and gas gauge quit working. In doing research, this appears to be a problem with alot of other owners of this vehicle; this should be a recall. This could be a very dangerous combination with the speedometer not working and if fuel runs out on a busy highway for example. I was just quoted over $880 to fix and declined due to the cost.

- Frisco, TX, USA

problem #272

Feb 012012


  • 80,000 miles


Cluster instrument panel failed. RPM odometer doesn't work, speed ranges from 80-off the charts, gas gauge not accurate. Apparently big problem w/over 300 complaints yet no recall. Firestone just quoted me $700 for a remove and replace instrument cluster gauge. $600 for the gauge itself. I can't afford that.

- Des Moines, IA, USA

problem #271

Jan 042010

Trailblazer 6-cyl

  • 62,500 miles
Like many people my 2005 Chevy Trailblazer has several issues regarding the instrumental panel. The first time this occurred was during a cold snap and all of the gauges got stuck on the down or off position. After some time some of the gauges (ie. Speedometer, tachometer, and oil pressure ) starting working again however, the majority of the time the readings were inaccurate. After some time elapsed (this year - 2012) the tachometer and oil pressure gauge stopped working completely. This has become an extremely hazardous situation because no vital information is being provide to the driver and the manufacture will not fix the issue.

- Miami, FL, USA

problem #270

Dec 232011


  • 52,000 miles
The contact owns a 2005 Chevrolet Trailblazer. The contact stated that the instrument panel malfunctioned. The contact also stated that the speedometer, battery and temperature gauges were providing erroneous readings. The vehicle was not taken to dealer. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure mileage was 52,000 and the current mileage was 63,000. The VIN was not available.

- Crosby, TX, USA

problem #269

Feb 062006

Trailblazer 6-cyl

  • 5,000 miles
The lighting, both interior and exterior, flickers this causes disorientation and inhibits my ability to drive safely. It has also caused me to be pulled over by police because he thought there was something wrong in the vehicle. I do not even like driving at night anymore because I'm afraid they will go out completely.

- Marion, IA, USA

problem #268

Feb 082008


  • miles


My speedometer does not work at all. The heater and A/C don't work. My fuel gauge does not work. The interior lights inside my car do not work, the right front passenger window does not work. Basically my entire dashboard does not work. What did Chevy do about it?? sent me a letter stating they are willing to pay half of the cost to repair the fuel gage but it would have to be fixed at a Chevy dealership. I could get the same thing fixed at my mechanic and pay the full amount and it would still cost me less than having the dealership fix it and Chevy paying half the costs. Don't think I will be buying another Chevy anytime soon.

- Huntington Beach, CA, USA

problem #267

Sep 182010


  • miles
My gas gauge always reads empty even when the car is full. Engine light always goes on and off between a matter of days. Recently my heat went out in my car we changed the resistor and found out one of the prongs were burnt out. A week later the heat went out again. Looked at the resistor and the same prong was burnt out!! I'm getting really fed up with this vehicle!

- Antioch, IL, USA

problem #266

Feb 032012


  • 55,000 miles
The contact owns a 2005 Chevrolet Trailblazer. The contact stated that the speedometer failed and would display that the vehicle was traveling much faster than the actual speed driven. The contact state that while in a parking lot, the speedometer erroneously displayed that the contact was traveling 30 mph when the accelerator was not being depressed. The failure would recur intermittently. The instrument panel lights would become extremely dim when the failure would occur. The vehicle had not been inspected. The failure mileage was 55,000 and the current mileage was 125,000.

- Rogersville, TN, USA

problem #265

Sep 062011


  • 88,000 miles
Intermittently while driving at various speeds the headlights and dash lights will go dim for a few seconds then return to normal. The voltage gauge also drops, then returns to normal.

- Groton, CT, USA

problem #264

Nov 302011

Trailblazer 6-cyl

  • miles
Speedometer not working gets stuck.

- Newark, DE, USA

problem #263

Aug 012010

Trailblazer 6-cyl

  • 65,000 miles
Fuel gauge is not indicating fuel level. Gauge incorrectly displays as empty or almost empty when fuel tank is full or partially full.

- Denver, CO, USA

problem #262

May 172011


  • 64,000 miles
The contact owns a 2005 Chevrolet Trailblazer. The contact stated that instrument cluster malfunctioned and the fuel gauge provided inaccurate fuel level readings. The contact the ran out of fuel twice due to the faulty fuel gauge. The contact did not take the vehicle to a dealer nor was it repaired. The failure mileage was 64,000.

- Bakersfield, CA, USA

problem #261

Nov 292011

Trailblazer 4WD 6-cyl

  • 71,050 miles
The speedometer in my vehicle suddenly shows over 120 mph no matter what speed I am traveling. I have found this to be a common complaint. The fuel gauge is also very inaccurate never showing more than 1/4 tank of fuel regardless of how much I put in.

- Lexington, SC, USA

problem #260

Nov 252011

Trailblazer 6-cyl

  • 88,900 miles
The speedometer at any given moment will go haywire. Will read over or under what speed you are actually driving. This is caused by a faulty instrument cluster. Safety concern is that you do not notice right away that the speedometer is out of whack so you don't know how fast you are actually going, leaving you vulnerable to driving too fast for road conditions and potentially causing a very serious accident. This is a known problem in the 2005 Chevy Trailblazer and GM will do nothing to repair this.

- Yucaipa, CA, USA

problem #259

Aug 022011

Trailblazer 6-cyl

  • miles
The Trailblazer I bought seem to be more of a headache the a sport vehicle. I wish I had look better at all the information the was out there. I will not purchase another one, or recommend this vehicle to anyone. Sorry I bought it.

- Wingdale, NY, USA

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