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.


hardly worth mentioning
Crashes / Fires:
0 / 2
Injuries / Deaths:
0 / 0
Average Mileage:
53,804 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 4 of 11)

« Read the previous 20 complaints

problem #154

Aug 102011

Trailblazer 6-cyl

  • 74,200 miles


Fuel gauge started fluctuating between full and empty, now it just stays on empty. 09-09-2011 with car in park the idle sometimes goes up to 2100 rpms then will go as low as 600 rpms, recently as of 09-16-2011 I have been noticing a fluctuation in speed on its own or without my assistance.

- Detroit, MI, USA

problem #153

Aug 062011

Trailblazer 6-cyl

  • 40,000 miles
The fuel gauge light went on when the vehicle still had nearly 10 gallons of gas. The fuel gauge will read full for a week and then the fuel light when come on suddenly. There have been multiple occasions when the fuel gauge read empty, but I was only able to fill up with 8 gallons (fuel tank is 20 gallons plus). Fuel gauge has been so inaccurate that I have been forced to use my trip odometer and I don't feel confident taking car on a road trip or out of town.

- Tampa, FL, USA

problem #152

Mar 012011

Trailblazer 6-cyl

  • 50,000 miles
Fuel gauge shows empty, while there is still plenty of fuel in tank. When the vehicle is first started, the gauge reads correctly, but as soon as the vehicle is in motion, the gauge drops to empty. When tank is 100% full, the gauge reads correct until around 100 miles, when the gauge immediately drops to empty. Online research is showing this to be a known issue, possibly with the fuel sending unit attached to the pump.

- Orient, OH, USA

problem #151

Jul 132011

Trailblazer 6-cyl

  • miles


The fuel gauge says full for a couple weeks then goes to empty with the light coming on even if I put a gallon of gas in goes right back to full and stays there the steering also feels like any day something is going to happen to it and its making a loud screeching sound thought it might be power steering the fluid is full.

- East Liverpool, OH, USA

problem #150

Jun 022011


  • 60,000 miles
I own a 2007 Chevy Trailblazer. The fuel gauge started fluctuating erratically and the gas light would come on and stay on. Then eventually it stop working altogether. My wife has ran out of gas in it one time. From the complaints I've been reading. I'm not the only consumer experiencing this same problem. I have called dealerships about this repair and it will be very expensive to fix it. I feel the manufacture should step up and fix their problem. Its obvious that you have one. My family only purchases general motor products. Please let us keep our relationship healthy.

- Wagram, NC, USA

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problem #149

Feb 172011


  • 60,000 miles
The fuel gauge stopped working when you fill it up the gauge shows full than you drive it a little bit and it goes to empty and the low fuel light comes on.

- Arvilla , ND, USA

problem #148

Aug 182011


  • 56,000 miles


Fuel gauge keeps showing empty when I know there is fuel in the vehicle. The faulty gauge goes from half full to the empty light (warning) coming on after driving less than 10 miles. This has been going on for about 3 weeks and just yesterday I received a letter from GM saying they will cover 50% of the cost to repair. It's faulty equipment and GM should put a "recall" in place and cover the total cost to repair!

- Stuart, VA, USA

problem #147

Jun 012011


  • 52,000 miles
The contact owns a 2007 Chevrolet Trailblazer. The contact stated the fuel gauge failed to display an accurate reading with fuel consumed in the fuel tank. The manufacturer mailed a notification offering to reimburse fifty percent towards the fuel level sensor repair expense. The failure was not diagnosed nor was the vehicle repaired. The manufacturer was not notified of the defect. The approximate failure mileage was 52,000.

- Phoenix, AZ, USA

problem #146

Aug 082011

Trailblazer 6-cyl

  • 30,124 miles
Fuel gauge no longer reads correctly. Problems began several weeks ago with a gasoline fill up. The gauge did not read correctly (empty) but righted itself after several miles. The gauge no longer corrects itself and reads empty practically all of the time, even when there is sufficient fuel in the tank.

- Johnstown, PA, USA

problem #145

Aug 312010


  • 51,000 miles
2007 Trailblazer at 51000 mi. Fuel gauge reading incorrectly after filling it would read ok for aprox. 100mi. Then drop to empty. Now 10,000mi later it is permanently on empty. I am driving using the trip meter. I think this should be recalled for safety reasons.

- Graytown, OH, USA

problem #144

Dec 172010

Trailblazer 6-cyl

  • 103,744 miles


Fuel gauge sensor malfunctioning. Fuel gauge sensor malfunctioning and will read empty after filling the tank and cause the service engine and low fuel lights to illuminate.

- Yemassee, SC, USA

problem #143

Aug 012011

Trailblazer 6-cyl

  • 110,000 miles
Fuel gauge on my 2007 Chevy Trailblazer does not give consistent readings. The needle moves up and down and signals the tank is empty while the vehicle is in use regardless of actual fuel level. This occurs every time I drive the vehicle. I am looking to fix the issue.

- Eagan, MN, USA

problem #142

Aug 202011


  • 74,980 miles
Filled by my 2007 Chevy Trailblazer yesterday and the fuel gauge reads empty and the fuel light stays on. Took my vehicle to the dealer and was told that I missed the warranty by 3,000 miles and it will be almost $800 to repair. Have read online that hundreds of consumers are experiencing the same problem with the same type of vehicle from 2005-2007 so there is obviously a defect in the manufacture. This needs to be looked into and handled, it is obvious the dealer needs to recall these vehicles and correct the problem.

- Pembroke Pines, FL, USA

problem #141

Feb 262011

Trailblazer 6-cyl

  • 39,000 miles
Fuel gauge on the 2007 Chevy Trailblazer has failed at less than 40,000 miles. Not knowing the level of fuel is a definite safety hazard. Problem is very common according to dealer. Cost to repair is from $600 to $1,000. GM should be made to recall these vehicles.

- Circleville, OH, USA

problem #140

Jan 202011


  • 650,000 miles
Fuel gage read 1/4 of a tank and ran out of gas on the side of the road in the winter with two small children in the car. Since the incident my fuel gage read all over the board and eventually only reads empty. I have meet many other people with the same make/model with the same issues

- Champlin, MN, USA

problem #139

Aug 082011

Trailblazer 6-cyl

  • 30,000 miles
Inaccurate fuel gauge 2007 Trailblazer will show empty when it is not and full when it is low on fuel, an everyday occurance.

- Post Falls, ID, USA

problem #138

Apr 042011

Trailblazer 8-cyl

  • 73,589 miles
I have had problem with fuel level sensor on a 2007 Chevrolet Trailblazer lt, V-8.does not show fuel level correctly.this was not covered under warranty, but the fuel pump that it is attached to is, I had to pay out of pocket to fix problem.feel I should be reimbursed.the only thing the dealership has done was to send me a 10 percent discount on my next repair.

- Freeport, FL, USA

problem #137

May 012011


  • 34,000 miles
Faulty gas gauge. Needles floats from empty to full. Ran out of gas on thruway in rush hour.

- Buffalo, NY, USA

problem #136

Aug 042011


  • 49,000 miles
My 2007 Chevy Trailblazer has a faulty fuel gauge. I was almost T-boned because the car died in the middle of an intersection and the fuel gauge said it still had fuel in it.

- Everett, WA, USA

problem #135

Feb 012011

Trailblazer 6-cyl

  • 81,000 miles
Faulty fuel gauge/check engine light.

- Harleysville, PA, USA

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