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.


hardly worth mentioning
Crashes / Fires:
0 / 2
Injuries / Deaths:
0 / 0
Average Mileage:
62,288 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 fuel system problems

fuel system problem

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2005 Chevrolet Trailblazer Owner Comments (Page 17 of 22)

« Read the previous 20 complaints

problem #108

Jul 022005

Trailblazer 6-cyl

  • 74,000 miles


2005 Chevrolet Trailblazer gas gauge is showing incorrect readings. When the tank is filled, it will read empty and the warning light/signal comes on. The gauge will then read incorrectly and go back and forth from empty to about a quarter of a tank full. I never know for sure how much full I have in the tank after I fill it. I must go on mileage. This is a great safety concern.

- Charleston, SC, USA

problem #107

Jul 102010


  • 98,970 miles
Fuel sending unit failing. Multiple complaints posted online concerning the repeated failure of the fuel sending unit. Gauge needle moves up and down and primarily registers empty.

- Stephens City, VA, USA

problem #106

Jan 142010


  • 66,280 miles
My 2005 Chevrolet Trailblazer gas gauge is showing incorrect readings. When the tank is filled with fuel the gauge shows empty and the warning signal continually goes off. With fuel in the tank the gauge goes up and down constantly displaying incorrect readings. This can result in a serious car accident as the driver does not actually know how much fuel is in the tank. I have small children and this concerns me greatly.

- Bay Harbor Islands, FL, USA

problem #105

Jul 042010


  • miles


Fuel warning light comes on and off at will. Fuel gauge works when it feels like it should. No consistency.

- Gallatin, TN, USA

problem #104

Jan 102010


  • miles
Defective/faulty fuel level sensor in 2005 Chevrolet Trailblazer resulting in continually reading gauge as empty.

- Redmond, WA, USA

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problem #103

Jun 212010

Trailblazer 6-cyl

  • 70,000 miles
I own a 2005 Chevrolet Trailblazer. Recently, my gas gauge began acting up. It states that the gas tank is empty right after I fill up. It constantly readjusts itself. I never know exactly how much gas is in my car. It is a very frustrating problem and an expensive repair. Extensive internet research shows that this is a problem for other Trailblazer owners as well. I do not understand why GM has not recalled this.

- Acworth, GA, USA

problem #102

May 102010

Trailblazer 4WD

  • 59,601 miles


2005 Chevy Trailblazer 4X4 fuel gauge no matter how much gas you put in it will show maybe from half to whatever then while sitting it will drop down to empty and lights will blink showing empty on gas, when just put gas in the vehicle.

- Eldorado, IL, USA

problem #101

Jan 092010

Trailblazer 6-cyl

  • 70,936 miles
Trailblazer 2005 fuel gauge failure, speedometer intermittent failure, vehicle lunges at idol or shuts off approaching stop/brake. Almost causing accident. Been to repair and intermittent problem not identified. Fuel system flushed. Speedometer issue same. Fuel gauge currently not working properly, unreliable.

- Jacksonville , FL, USA

problem #100

Jun 122007


  • miles
Fuel gauge sensor on a 2005 Trailblazer has gone out, fuel gauge reads empty at all time. This could potentially cause a serious accident especially if the vehicle were to run low on fuel at highway speeds and be hit by another car from behind. Even more dangerous for those who may be using the vehicle to travel somewhere for medical attention. This is a known problem among GM vehicles and yet they have issued no recall as of yet. There is a website here; with over 200 Trailblazer owners with the identical problem and I'm sure there are many many many more.

- Mission, KS, USA

problem #99

May 052010


  • 93,800 miles
Chevy trailbazer 05... gas gauge keeps moving from low to empty back to full, sometimes it stays at empty. Check engine light stays on. Fuel sending unit keeps failing. Unit was replaced in 2007 at dealership. Sending unit has gone bad again. Very expensive labor needed to fix this. When I fixed the first time I had warranty now it has expired. I checked online and it seems like everyone with a Chevy Trailblazer is having the same problem also my knowledge this is a completely defect of the car. My major fear is to run out of gas on the highway and my car to stall. Leading to an accident.....also the instrument panel light keep getting darker..sometimes several lights come on.

- San Jose, CA, USA

problem #98

Feb 262006

Trailblazer 6-cyl

  • miles


2005 Chevy Trailblazer gas light constantly on and showing empty. Replacement will be between 700-1000 dollars for the fix. Must use mileage to gauge when I need fuel. This has been this way since 2006. This seems to be a huge problem with this vehicle. Thankfully, I have not had an accident or been rear-ended, but this needs to be investigated and fixed by Chevy.

- Murfreesboro, TN, USA

problem #97

Apr 152010


  • 85,000 miles
I have a 2005 Chevy Trailblazer and the fuel gauge does not work. For a brief period after fill ups, it would stick on empty and a chime would ding. Eventually it would start to work. However, now it is completely not functioning. This creates a huge safety concern as one never knows the fuel level of the vehicle. I have done extensive search on the internet and this is a common problem in many Chevy Trailblazers. A local dealer said that it was a sensor and could cost between 800-1200 dollars. I think a recall is order since this is such a common problem. A simple google search "2005 Chevy Trailblazer fuel gauge problem" is sufficient evidence to conclude that GM should recall this part.

- White House, TN, USA

problem #96

May 272010

Trailblazer 6-cyl

  • 68,000 miles
I have a 2005 Chevy Trailblazer. My fuel gauge no longer works. The only way I can track how much gas I have is by keeping up with my mileage. When I took it to my local dealer I was told that this was a very common problem in Trailblazers and that it would cost $500-$600 to repair. When I did a quick search online I found hundreds and hundreds of other Trailblazer owners with the same complaint! I believe this is a safety issue and want to know why this wasn't a recall! I got no assistance from the General Motors and was only told to "go through my dealer."dealer didn't care. One minute it says I have gas then the next, empty.

- San Antonio, TX, USA

problem #95

Mar 192010


  • 80,000 miles
I was putting gas in my 2005 Chevy Trailblazer.. when I left the gas station the empty light stayed on.... now it is stuck on empty.

- Fresno, CA, USA

problem #94

May 082010


  • miles
Chevy Trailblazer '05 fuel gauge defective. Causes vehicle to run out of gas, which on highways and intersections is a vital danger, not to mention single women driving at night being stranded on the road! just read a blog, 388 posted the exact same problem. The fuel sensor is defective and we request a recall.

- New Orlans, LA, USA

problem #93

May 192010


  • miles
Fuel gauge in my 05 Chevy Trailblazer just quit working causing me to run out of fuel on the freeway.

- Galena, OH, USA

problem #92

Apr 192010

Trailblazer 6-cyl

  • 38,000 miles
My 2005 Chevy Trailblazer is at the dealership at this moment due to malfunction in the instrument cluster panel. First my gas gauge went out 3 months ago and now my speedometer is broken - shows I am going 60 when I am at a stop or it may go down to 30 at times. It will cost $500 for the cluster and $550 for the fuel sensor. I called GM to see if they will pay for repairs but have not heard a response yet.

- Houston, TX, USA

problem #91

Jan 152010


  • 43,000 miles
Fuel level sensor installed on model 2005 Chevrolet Trailblazer vehicles is defective and could result in vehicle running out of gas.

- San Angelo, TX, USA

problem #90

Apr 252010


  • 96,500 miles
About 3 weeks ago, I stopped at a local gas station and filled up my 2005 Chevrolet Trailblazer. When I crank the truck, I noticed my gas light was on even after I fully filled the stop. I was baffled by this knowing I'd just spent $50 for a fill-up and I had begin to think there may have possibly been something wrong with my gas tank. I searched and asked other Trailblazer owners and learned that it's my fuel sensor that's the problem as they have experienced the same issue with their vehicle. This seem to be a issue with this make an model and I shouldn't have to pay out of pocket for Chevrolet's problem.

- Madison, MS, USA

problem #89

May 042010

Trailblazer 6-cyl

  • miles
I have a '05 Chevrolet Trailblazer and about a week ago my gas gauge start to go crazy. I fill it up with gas and the needle went to empty. It start moving up and it went back to empty and stay there. I don't know how much gas I have now and went it is empty or not. Please look in to this. I know I'm not the only one with this problem.

- Mobile, AL, USA

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