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 1 of 2)

problem #30

Jun 272010

Trailblazer 6-cyl

  • 53,000 miles


The failure is the fuel gauge, I have ran out of gas three times because of this issue. Nothing has been done with this as of yet, will cost $600 to repair, everyone with this type of truck has this issue.

- Las Vegas, NV, USA

problem #29

Jul 162011


  • 74,521 miles
2007 Chevy Trailblazer. Gas gauge periodically goes from full to empty even though tank is full. No real rhythm to the malfunction which keeps us from knowing how much gas is actually there.

- Cantonment, FL, USA

problem #28

Feb 012010

Trailblazer 6-cyl

  • 60,000 miles
The fuel gauge on my 2007 Chevrolet Trailblazer is faulty.I have ran out of gas several times when the gauge shows a quarter tank or less. No low fuel light, no gauge needle on empty, just a dangerous gauge that should be recalled by GM before someone runs out of gas on the freeway and gets ran over. My vehicle had 60,000 miles on it when the problem started. After some investigation, I discovered I am not the only one with this problem.

- Tennessee, TN, USA

problem #27

Apr 012011

Trailblazer 6-cyl

  • 60,000 miles


The fuel gauge indicator comes on after about 150 miles with more than a half a tan of gas left. The gauge states that I am out of gas with the light on. For the time being I use the trip odometer and refuel about every 200 miles. It still worries me that my gas light is on and says empty. I haven't gone to a repair shop because my Trailblazer is no longer under warranty, but have looked online and saw many complaints of the same problem with quotes ranging anywhere from $400-$1000. This problem started at about 60K miles. I currently have approximately 62K miles.

- Steilacoom, WA, USA

problem #26

Feb 012011

Trailblazer 4WD 6-cyl

  • 50,000 miles
2007 Chevrolet Trailblazer. Fuel gauge indicator remains illuminated after filling with fuel. The gauge and message bar indicated that there is low fuel no matter how full the tank is. As a result, I have to use the trip meter and assume that I need to fill up at around 250 miles. I have run out of gas twice even before that amount of miles. I have called my local dealer and Chevrolet corporate but they will not take responsibility for repairs and state that the vehicle is out of warranty. This is absolutely a manufacturers defect. The failure mileage was 50,000 and current mileage is 60,000.

- Chapel Hill, NC, USA

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problem #25

Mar 122011


  • miles
2007 Chevrolet Trailblazer - fuel gauge is not giving correct information, lead to vehicle stall with no restart until more fuel was put in the tank.

- Waukesha, WI, USA

problem #24

Apr 182011

Trailblazer 8-cyl

  • 45,000 miles


Fuel tank level sensor.

- Charlotte, NC, USA

problem #23

Apr 012011

Trailblazer 4WD 6-cyl

  • 32,000 miles
Fuel gauge issues consistent with the thousands of complaints already out there. Car has 30K miles on it and fuel gauge now is always at empty.

- Wilton, CT, USA

problem #22

Apr 012011


  • 57,000 miles
Gas gauge not accurate and inconsistent. Indicates there is low/no gas in tank when there is approximately 1/4 to a 1/2 of tank of gas.

- Clifton Park, NY, USA

problem #21

Feb 012010

Trailblazer 4WD 6-cyl

  • 60,000 miles
I have a 2007 Chevy Trailblazer that has issues with the gas gauge reading. My gas gauge all of sudden stopped registering the amount of full in the tank at around 60,000 miles. It would show empty when I had just filled it up full. Now my gas gauge always shows empty and this in turn also makes the check engine light come on all the time. I have to fill up every 300 miles just to make sure I don't run out of gas. When I talked to the local dealership they said it was the fuel sensor in the tank but GM hadn't recalled it. I searched all over the internet and found this to be a problem with my year Trailblazer. Many others have experienced the same problem. I have not repaired it because it was over $700. It seems to me that if this is a problem with 2005-2007 Trailblazers that GM would do something about it. I know there are far more people out there who haven't complained.

- Kansas City, MO, USA

problem #20

Feb 172009

Trailblazer 6-cyl

  • 58,000 miles


Fuel gauge does not register properly. Indicator remains on empty and low fuel indicator light stays on even after filling up.

- Stone Mountain, GA, USA

problem #19

Aug 072009

Trailblazer 4WD 6-cyl

  • 40,000 miles
The fuel gauge in our 2007 Chevy Trailblazer stopped working 18 months ago. The fuel gauge will randomly oscillate between empty and full as well. This has caused us to run out of fuel twice because we thought we had adequate supply.

- Canandaigua, NY, USA

problem #18

Mar 052011

Trailblazer 4WD 6-cyl

  • 52,000 miles
2007 Chevy Trailblazer gas sensor level. Gas gage always reads empty even when totaly full.

- Sedalia, MO, USA

problem #17

Dec 052010

Trailblazer 4WD 8-cyl

  • 27,000 miles
Fuel sender/gauge does not function. I bought this 07 Trailblazer brand new and it only has 31K miles. Problem started to occur around 27K miles and the dealer advised it was not covered under warranty!!! you would think with 70 complaints about this same issue, Chevy would do something about it!!! very disappointing. I just wish that was the only problem...tire monitor doesn't work, the A/C electrical system failed, and the check engine light is always on.

- Thornton, CO, USA

problem #16

Feb 282011

Trailblazer 4WD 6-cyl

  • 54,525 miles
Gas gauge does not work so we never really know exactly how much gas we have left which can result in it running out of gas on the highway putting myself or my wife and children in danger...

- Overland Park, KS, USA

problem #15

Dec 292010

Trailblazer 4WD 6-cyl

  • 55,000 miles
2007 Trailblazer lt 58,000 mi. Fuel gauge only reads correctly when the tank is full. Anything less that 3/4 of a tank and the fuel gauge reads empty and warning light illuminates. Gauge will occasionally fluctuate between accurate reading and empty but more often than not just stays at empty. Never really sure how much gas is in the tank so have to go by the odometer reading. Vehicle is beyond warranty and dealer claims nothing wrong with part.

- Buffalo, NY, USA

problem #14

Jul 182010


  • miles
I own a 2007 Chevy Trailblazer. 2 thousand miles after the warranty expired my fuel level sensor went out. I have come to find this is a huge problem with this vehicle and there should be a recall for such a common problem.

- Acme, PA, USA

problem #13

Oct 192010

Trailblazer 6-cyl

  • 65,000 miles
2007 Trailblazer fuel level sensor failure causes my fuel gauge to give incorrect reading. I would fill up the car with gas and the gauge would go to 1/4 tank or empty at times and then back to full. I brought this vehicle brand new and at 65,000 miles this issue started. My extended warranty ended at 60,000. I ran out of gas once because the fuel level display showed that I had 1/4 tank when I was on empty. I took the vehicle to a local Chevy dealership and was told there's a shortage in the sensor and it has to be replaced, but since my warranty is no longer it would cost over $600. I know of 3 other people with the same sensor failure and after reading reviews online I believe Chevy needs to recall this sensor.

- Baltimore, MD, USA

problem #12

Sep 292010

Trailblazer 6-cyl

  • 63,257 miles
Fuel level sending unit quit working or reports false level. Particularly happens when I fill up. Check engine light also has come on and when it was checked showed problem with the fuel sending unit.

- Columbia, SC, USA

problem #11

Jul 012010


  • 63,000 miles
2007 Chevy Trailblazer with 64,000 miles. Fuel gauge will move around no matter how much gas in it. Could have a full tank & one minute it will read full, next minute low fuel light is coming on. 3 times now, my Trailblazer shut off going down the road, which means no power steering or power brakes. It thinks it's out of fuel, when there is fuel in it. After sitting a few minutes along side the road, I start it up & I'm good to go. I have to keep it filled all the time, because the gauge will not read correctly. Sometime sitting at idle I've watched it go to empty & back up while I'm just sitting there.

- Mt. Sterling, IL, USA

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