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.


definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
42,177 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.

2007 Chevrolet Trailblazer fuel system problems

fuel system problem

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2007 Chevrolet Trailblazer Owner Comments (Page 2 of 2)

« Read the previous 20 complaints

problem #10

Dec 282009


  • 38,000 miles


The electronics on my 2007 Chevy Trailblazer have gone out which includes the brake lights and the fuel gauge. The repair on the brake lights was minimal but it will cost over $800 to repair the fuel guage. Chevrolet has known about these problems for years but has not attempted to fix them or recall the vehicles.

- Downingtown, PA, USA

problem #9

Jan 012010


  • 36,000 miles
The gas sensor on the 2007 Trailblazer goes out and the vehicle is not able to pass emission test required by state law. I have researched on line and found several of the same complaints from other Trailblazer owners.

- Douglasville, GA, USA

problem #8

May 012010


  • 15,000 miles
Gas gauge sensor alarm signals gauge is empty when tank is 3/4 full; have not gotten an answer as to whether the vehicle will become disabled and have to stop to just put in a few gallons. The low fuel indicator signal is very distracting and goes off constantly. Repair cost is $400-$600 for the sensor and is not covered under vehicle or extended vehicle warranty. It is an obvious manufacturing defect and the vehicle should require a recall.

- Pittsford, NY, USA

problem #7

Feb 012010


  • 52,000 miles


I have a 2007 Chevrolet Trailblazer ls, the gas gauge at 52,000 miles began to fluctuate from E to F. this does not give an accurate reading. I understand this may not seem like a pressing safety issue but it can lead to stranded motorist which can be safety related. It now occurs every day. I have not repaired the part yet but reading various forums online state it is a common occurrence that ranges from a $600 to $800 procedure. I also looked at the complaint results in the last 3 years on this year model alone vehicle and the ntsa has received several complaints. I am positive if you researched every year model of the Trailblazer you will find a trend. Please do the job of the government and make sure General Motors rectifies the situation.

- Auburn, AL, USA

problem #6

Dec 012009


  • 44,000 miles
The gas gauge on my 2007 Chevy Trailblazer will not read above empty and the light stays on constantly. I have searched several online forums and found that this is apparently a very common problem that GM charges $500 or more to fix even though they are well aware of the problem.

- Cincinnati, OH, USA

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problem #5

Apr 012008


  • 36,000 miles
This Trailblazer was purchased as a demo from a local md dealer. Around 36000 miles I noticed was fuel gauge was continually moving, it would go from a full tank to empty, for no reason. That problem lasted about 2 weeks, from then on my fuel gauge did not work at all, the gauge sits on empty, regardless of how much fuel is in the tank. Also the low fuel indicator rings constantly a random times. Also the check engine light goes on and off. I took my truck to a local dealer and they quoted a price of approx $600 to fix. I have researched this problem, apparently it is a very common one.

- Welch, WV, USA

problem #4

Jan 312009


  • miles


Fuel gauge detect on 07 Chevrolet Trailblazer (40,000).

- Ellenwood, GA, USA

problem #3

Jan 152009


  • 41,000 miles
1. fuel gauge fails to read correctly drop to empty when fuel still in tank 2. as soon as the fuel level drop below 1/2 tank 3. contacted dealer informed not covered by warranty.

- Cicero, NY, USA

problem #2

Jan 032009


  • 33,000 miles
While operating my 2007, Chevrolet Trailblazer, I notice that the vehicle was leaning on the right side, I stopped the vehicle and after checking the tires I found no flats, and no air missing, as I drove away I began to feel a wobble in the front tires, which led me to meyer Chevrolet, where he found that the shock absorbers where still good several weeks later the leaning and the wobble continued and I took it to my mechanic where he found that all the shocks where leaking and had worn out at 33000, miles, before replacing the shocks I called General Motors to see if they can set up an appointment with another dealer which they stated that I should return it to the dealer I purchased it from. I then returned the vehicle again to meyer Chevrolet where again I was told that they where good and not bad, I continued to drive the vehicle and the tires where so bad that I decided to take it to my mechanic for an inspection of the front end which he found that the four shocks where bad the tires, and the alignment where bad, I then called Chevrolet to ask for there assistance in the costly repairs and they stated that because I had my repairs done elsewhere they could not help, so 1400 dollars later my car is running good again lets see how long before something else goes wrong. Last year while driving to Virginia beach, I stopped to refuel and when I got in the car again the gauge had stopped working, the little yellow light came on and would not shut off giving me false gas readings that the tank was empty, when I arrived in Virginia beach I called the dealers for an appointment and no one would repair it they said take it back to New York city for repairs. I then placed a call to on-star and they said unless you get stuck you will have no choice but to take it back to New York for repairs, we will send you a tow truck at that point and left me with a car that I didn't know whether there was gas inside or not. GM get it together.

- Corona , NY, USA

problem #1

Jan 012007


  • 1,000 miles
I own a 2007 Chevrolet Trailblazer ls. The vehicle in no way get the mileage it is supposed to. The windshield states 14 mpg in city/highway but in no way have I ever gotten this. The dealer checked it over and said that everything was to spec and nothing could be done. In driving the best I can get is about 15 mpg. The current mileage is 9600. The dealer told me it should get better by 10000. This car is not a keeper.

- Elsmere, KY, USA

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