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 11 of 11)

« Read the previous 20 complaints

problem #14

Feb 282010


  • 53,000 miles


Filled my tank and drove away the morning of the incident. While driving later that day my fuel gauge started going down while driving. It went to empty the low gas indicator light came on and it stayed that way for a few minutes before returning to full. This only happened 1X so far recently. I've also had problem with all the gauges going out while driving. Speedometer/fuel/ electrical/tach etc. Had to turn off the vehicle and restart to reset these functions in the past. 2-3X an had onstar run diagnostics. The electric stability control has also been coming on/off intermittently quite frequently at startup and at other times while driving. I've seen similar complaints on chat boards but few have take the steps to document them beyond the postings. There are many similar complaints on the web. Thank you

- Camp Hill, PA, USA

problem #13

Feb 262010


  • 47,000 miles
Fuel gauge working incorrectly.

- Clarksville, TN, USA

problem #12

Feb 052010


  • 36,100 miles
At 36,101 miles I went to the gas station and filled up. Started the vehicle and the gas gauge read empty. I spoke with gas attendant and he said this is a common problem with Trailblazers. I have had the vehicle shut off on the highway because the gauge will read half full and be empty. Multi Chevrolet in union NJ. Told me that it was a common problem and the warranty was up at 36,000 miles and it would cost $800 dollars. If it is common it is a defect that should be recalled.

- North Plainfield, NJ, USA

problem #11

Jan 242010

Trailblazer 6-cyl

  • Automatic transmission
  • 93,115 miles


The contact owns a 2007 Chevrolet Trailblazer which was purchased on March 2007. She stated that the fuel gauge became inoperable. She added fuel to the vehicle and upon starting it, she noticed that the fuel gauge indicated empty and the low fuel warning light illuminated on the warning panel. The dealer stated the fuel sending system needed to be replaced. There were no recalls for the failure. The vehicle will be repaired. The failure mileage was 93,115 updated 02/17/10. Updated 02/18/10

- Ridgeway, VA, USA

problem #10

Nov 242009


  • 35,400 miles
I own a 2007 Chevrolet Trailblazer 6 cylinder. Recently the gas gauge begin to malfunction showing empty sometimes when it was not. Within 2 weeks the gas gauge has quit working completely. Now today the check engine light came on. The result is that I never know how much gas I have left and unless I keep filling it up every couple of days I risk running out of gas. In researching this on the internet it appears to be a faulty fuel sending unit and scores of people who own Trailblazers from 2005 on are having this problem.

- Thornton, CO, USA

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problem #9

Dec 012009


  • 35,500 miles
Fuel gauge will not rise past empty indicator. Low level fuel light is stuck on. Tank has a full tank of fuel.

- Middle Island, NY, USA

problem #8

Nov 082009


  • 58,000 miles


I have only owned my "07" Trailblazer for one year. Purchased it from a dealer in augusta Maine. Two things are a problem with this vehicle already and one of which several have complained on your site about. The fuel gauge is now dropping even when full, not allowing me to know when I have enough gas or possibly someone has tapped into my tank overnight and helped themselves & the second is my passenger side tires are wearing quite rapidly. I have taken the vehicle into be looked at and discovered my ball joints need to be replaced! I was quite shocked as again, I have only had this vehicle 1 year. I am in hopes that what is written here is enough to drive Chevy to a recall. I found this site through my insr. Company and will alert many to check it before purchasing what they think may be a great vehicle. If I had known, I would have done so myself.

- Winslow, ME, USA

problem #7

Aug 252009


  • 54,500 miles
Fuel gauge starts to drop rapidly after driving 100 miles after a fill up then the low level indicator turns on. If I shut the vehicle off and restart, the tank will go back up to half full and then drop back down to the low level indicator after 5-10 minutes. When filling up the tank it only allows me to put in no more than 13 gallons. Gauge is obviously broken. My company has a fleet of 20 Trailblazers and I am the 8th person to have this problem.

- York, PA, USA

problem #6

Jul 182009


  • 47,150 miles
I have a 2007 Chevy Trailblazer which I just purchased in September of 2008. For the past couple of days here, I am having problems with the fuel gage fluctuating on me. I just put a full tank in 2 days ago and it is still reading past full. On occasion it will go all the way down to empty, and then back up to full and then back down again. This is all when either running or driving when this all happens. This is very irritating to me, considering this is our only vehicle right now. It seems to me that this problem is very popular in the 05-06, but now I am having problems in my 07 and I have 47,000 miles on mine. I think Chevy should recall this. It's ridiculous!

- North Fond Du Lac, WI, USA

problem #5

Jun 142009


  • 55,000 miles
I have a 2007 Chevy trail Blazer. I filled up with gas and a few days later thinking I had gas went on my way. Not 20 minutes later my whole truck shut down on the toll road, with my 8 and 5 year old children. Due to the fact my gas gage is now no longer working? I had to call my husband to go get gas and put some in. I almost crashed into a stone cinder block due to this.

- Crete, IL, USA

problem #4

May 182009


  • 9,500 miles


Throttle body does not kick down when coming off freeway. You have to put a lot of pressure on the brakes to slow vehicle down. Driving in the city is fine but idle stays high when coming off of the freeway.

- Fresno, CA, USA

problem #3

Apr 072009


  • 40,100 miles
My wife filled the Trailblazer up with gas and when she got back in and started the vehicle the low fuel warning sounded and the message came across on the message center. After driving for a while she noticed that the fuel sensor was moving up and the low fuel message had gone away. Although, when she reentered her SUV after work the same thing happened again the same day just a few hours later.

- Blue Springs, MO, USA

problem #2

Mar 012009


  • 50,000 miles
2007 Trailblazer fuel sensor problem. Chevy knows about the problem with the fuel level sensors, fuel from any vendor causes the fuel sensor to gum up with sulfur and other chemicals making it stick and read empty most of the time. It also sends a code to the monitoring system (check engine light). This light will not allow the vehicle to pass inspection at any time. Chevy knows about the problem due to the 35 dollar bottle of cleaning fluid that was only carried by the Chevy itself, their response states that this should cure the problem. Understanding should cure the problem tell me (a mechanic) that this is absolutely not the first time this has occurred.

- Clayton, NY, USA

problem #1

Mar 032009


  • 48 miles
My 2007 new Trailblazer started on fire while it was off and parked for over 12 hours in may of 2008. After 2 and 1/2 months of not having my truck it was determined to be an electrical short. GM admitted it was a fault of theirs seeing as my truck was not even a year old and purchased new. Ever since the car was returned back to me the indicator lights go on and off and today I was driving and the check engine came on. I immediately took it in to have it looked at and was told that there is an electrical short and a fire could have started again had I not brought this in sooner. So for the 2nd time I am risking my life everytime I drive this truck!

- Peotone, IL, USA

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