Print this page 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:
1 / 1
Injuries / Deaths:
0 / 0
Average Mileage:
80,127 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 3 of 4)

« Read the previous 20 complaints

problem #40

Feb 082010


  • miles


After filling up my gas tank the fuel sensor read empty and the gas light was on. Also, whiel driving the fuel sensor would jump around showing empty, full and the gas light would come on. The vehcile was still under warranty at the time so I took it to the dealership to have it repaired. The service rep at the dealership inidcated that it was a common problem with the fuel sensor and it would need to be replaced. He mentioned that I was lucky the vehicle was still under warranty because the repair was very costly. My vehicle occassionaly lurches when it put inot gear from being parked or idle as if it wants to just take off right away. I contacted GM on this and they stated there was nothing they could do, but I have researched and found that many others have has this same problem. Another issude I have had was my speedometer and entire dash cluster failing. While driving on the interstate my speedometer jumped to over 100 mph and then back down to 0. at that point it stopped working for a few minutes then started working properly again. Finally it stopped working altogether. I took it to my mechanic and he replaced the enitre cluster panel which cost me around $800. Again, he did some research and found this to be a common problem. I sent GM a letter with a copy of the repair bill along with documentation of the many complaints I found online with the same issue. I heard nothing. I reached out with a phone call and was told the issue did not warrant a recall. This could be a serious safety issue. Please consider a recall as it apperas this vehicle was just poorly made and many other people are experiencing the same issues.

- Pleasant Garden, NC, USA

problem #39

Mar 252013


  • 105,000 miles
I filled up my car and the fuel indicator went to empty. Now, sometimes it registers some fuel but not where it should be. It usually stays on E. this is a safety hazard because you don't know how much fuel you have. After reading the complaints seems this is a problem with most Trailblazers. The wheel hubs and bearings have also went gone since this happened the parts place says this is also a problem with Trailblazers.

- Fairfax , VA, USA

problem #38

Feb 102012

Trailblazer 6-cyl

  • miles
Fuel gauge reads empty after filling tank, won't reset itself after fueling. Back hatch lock is stuck in lock and has already been replaced once. Sometime when your setting still at a red light or just going slow in traffic, there seems to be a "surge" of power or fuel to where the vehicle lurches forward. When driving at night the lights will flicker or dim on there own.

- Oran, MO, USA

problem #37

Apr 022013


  • 82,564 miles


The fuel gauge in my vehicle stopped working. I did some research and this seems like a common problem to Trailblazers that GM is ignoring. Running out of fuel can be very dangerous especially on busy highways. So I think this should be a safety issue that needs to be addressed as soon as possible.

- Eugene, OR, USA

problem #36

Mar 042013


  • 88,500 miles
Filled up gas tank only to find that it was reading empty. Fluctuated between empty and 1/4 tank. Ran out of gas with children in vehicle at one point in very bad weather. Finally able to save $450 to have it fixed. Is it true that GM will pay for half of the repair bill? very upset with General Motors!!

- Racine, WI, USA

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problem #35

Apr 162011


  • 75,000 miles
The contact owns a 2005 Chevrolet Trailblazer. The contact stated that the fuel gauge read inaccurately numerous times. The vehicle was taken to a dealer for diagnosis and the contact was informed that the fuel pump and/or the computer chip that controls the fuel pump would need to be replaced. The dealer offered to cover half the cost of the repair. The vehicle had not been repaired. The failure mileage was 75,000 and the current mileage was 135,000.

- Morton, MS, USA

problem #34

Oct 092012

Trailblazer 6-cyl

  • 92,000 miles


The fuel guage fluctuates between empty and full and is a safety issue.

- Camas, WA, USA

problem #33

Jun 152012


  • 94,000 miles
Gas gauge is not working properlly.

- Miami, FL, USA

problem #32

Feb 282013

Trailblazer 6-cyl

  • 68,900 miles
My 2005 Chevrolet Trailblazer shows that the fuel level reads empty after refueling to capacity. The fuel sensor light was also illuminated. Once on the interstate for appx 50 miles the level resumes. No telling how much fuel is in tank after filling. The vehicle was taken to the mechanic, who stated that the fuel sensor needs to be replaced. The vehicle was not repaired.

- Arvada, CO, USA

problem #31

Mar 182013

Trailblazer 6-cyl

  • 73,000 miles
I had just filled up my SUV, and while on the highway, my fuel gauge started dropping within a minutes time, to 3/4 tank, 1/2 tank, 1/4 tank, then the fuel light came on and stated I was on empty. I didn't smell gasoline, but the gauge then started going back up, then down and went haywire. After some of the gas was used, it went back up to almost full, but after a bit, it dropped back down to half tank again. Every subsequent time I fill up, the gauge does the same thing. Another incident that has been happening for the last few years is the head lights dim and get brighter. This doesn't happen all the time, but at least three times a week. I didn't think too much about it until I saw other complaints on this website about the same thing.

- Middleburg Hts, OH, USA

problem #30

Mar 012013


  • 76,000 miles


The contact owns a 2005 Chevrolet Trailblazer. The contact stated that the fuel tank displayed a fuel level reading of empty after refueling to capacity. The fuel sensor light was also illuminated. The vehicle was taken to the dealer, who stated that the fuel sensor needed to be replaced. The vehicle was not repaired. The manufacturer was not notified. The failure mileage was 76,000.

- Hilliard, OH, USA

problem #29

Mar 072011

Trailblazer 6-cyl

  • 112,539 miles
The oil pressure gauge stopped working. Second incident at a later date, the speedometer stopped working correctly, third incident at a different time, the fuel gauge reads incorrectly, fourth incident, the battery gauge is working sporadically. Most of the time the gauges do not function properly or not at all.

- Harrison, AR, USA

problem #28

Oct 012012

Trailblazer 6-cyl

  • 95,000 miles
Gas gauge does not work properly. Will not register gas in tank.

- Reno, NV, USA

problem #27

Jan 152013

Trailblazer 6-cyl

  • 107,000 miles
While waiting in line of a car wash my Chevy Trailblazer shut off and a strong smell of gas filled the vehicle while what appeared to be gas leaked from under the driver seat. After doing some reading on the issue I'm discovering this is happening regularly to Chevrolet vehicles and recalls are not being made. Had we been on the highway or a busy street where people constantly flick cigarettes out the window, this could have played out differently. I understand that it can be costly to have a recall but my whole family was in the SUV and from the sound of it so were other family's. I have had no major problems with my vehicle and very upset that this is a problem that could have been avoided and cost less if a recall had been issued. I will never buy another Chevrolet for not valuing their customers!

- Mililani, HI, USA

problem #26

Jul 202011

Trailblazer 6-cyl

  • 55,000 miles
Refueled with gas and gauge did not go up. Ever since, gauge does not show proper level of gas in tank. Got a letter from GM but they want me to pay half to repair it which total cost is $266 my cost is $133 GM knows this is a problem and should offer a total recall instead of a rip-off of 50-50 to the customer.

- Spooner, WI, USA

problem #25

Sep 082011


  • 42,000 miles
In 2007 I paid off my vehicle and now became the proud owner of my truck. In 2009, I noticed some problems with my truck. First, the gas gauge would say "F" full, but really it was on "E" empty. Then the mileage gauge " I can be on the expressway going as fast as the other cars, but my car reads 20 mph. This is crazy!!!! I called at 800-number for GMC and was informed that there was no recalls or any others calls for the 2005 Trailblazer, which I knew was a huge lie!!!! I decided to go on line and google the make and model of my car. Wow? guesses what I seen" there were over 41,000 people who have the same problems that I had for their 2005 Trailblazer. Again, the problem with my truck has gotten worst. In 2010, I called again and was informed that their still wasn't any other calls or concerns with my truck and that I should take it to an authorize Chevy dealership. Well, I did... in 2011, I called again.. same script same story!!! I received a letter for a emission test for my car. Well, let me tell you when I took my vehicle up to the emission testing it failed!!!. I got an estimate cost of $ 1900, plus they found 3 additional codes.. well, I got a 2008 Chevy Impala. I went from paying no car note, to $381 a month note. The week of September 4th, 2011.. I receive a letter from Chevrolet addressing the issues with the 2005 Chevy Trailblazers, and offering 50% on repairs for the same problems that I have been calling on for 2 years. [xxx] information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Chicago, IN, USA

problem #24

Nov 192012

Trailblazer 6-cyl

  • 74,600 miles
The fuel gauge on my 2005 Trailblazer has started to register the fuel incorrectly. When the vehicle is filled the gauge drops to empty, and then will vary from there sometimes showing fuel, sometimes not. I am hearing this is a common issue with this vehicle.

- Maple Grove, MN, USA

problem #23

Oct 272012

Trailblazer 6-cyl

  • 100,000 miles
Fuel gauge always reads empty.

- Cedar Rapids, IA, USA

problem #22

Oct 252012

Trailblazer 6-cyl

  • 112,045 miles
I was refueling on gas, when I started that truck back up, my fuel indicator light came on stating that the truck was empty of fuel. Now mind you I just placed $44.50 into the gas tank which at the time the gas pump click to let me know the tank was full of fuel. It took about 2 days for the fuel indicator to show the correct amount of fuel in the truck. Now ever time I fill up the fuel indicator light states it is empty after turning the truck back on and off on the fourth time then the indicator light will shut off and fuel gauge will show that correct amount of gas.

- Kansas City, KS, USA

problem #21

Mar 122012

Trailblazer 6-cyl

  • 78,887 miles
Fuel gauge reads empty, with the low fuel light on, after filling the fuel tank. Sometimes, while driving or after starting the vehicle, the gauge needle moves up and reads non-empty and then back to empty triggering the low fuel light and the low fuel bell.

- Divide, CO, USA

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