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CarComplaints.com 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.

6.8

fairly significant
Typical Repair Cost:
No data
Average Mileage:
103,600 miles
Total Complaints:
5 complaints

Most Common Solutions:

  1. not sure (4 reports)
  2. special warranty coverage 10054 (1 reports)
2007 Chevrolet Trailblazer fuel system problems

fuel system problem

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2007 Chevrolet Trailblazer Owner Comments

problem #5

Sep 122016

Trailblazer LS 4.2L

  • Automatic transmission
  • 112,624 miles

A D V E R T I S E M E N T S

I just bought this used car a week ago and when I filled it up, the gas gauge goes to EMPTY and the low gas light comes on. Then the check engine light comes on the next time I started it.

I get on the internet to find out what is going on and I find to my surprise, these Chevy Trailblazers are known for this problem, GM knows about it, seems it is a faulty fuel sensor and the fuel pump could go out as well since they are both tied together. If GM knows about it, and it is a problem with these vehicles, why do they not do something about it???? It is crazy that we are expected to pay out large sums of money for these vehicles to only find out they are plagued with problems that the maker knows about, but does nothing at all about.

- Carol B., Angola, IN, US

problem #4

Oct 262015

Trailblazer LS 5.3L

  • Automatic transmission
  • 118,000 miles

I recently bought a used 2007 Chevy Trailblazer AFTER I read about the complaints about the fuel gauge. After I bought it, as almost by script, the fuel gauge started reading empty after I filled up the tank. However, like I stated, I knew of the potential problem prior to buying it, but I just needed something cheap to get me from point A to point B, and this fit the bill.

After I got the vehicle and activated the Onstar, I got a diagnostic email, which stated the current condition of the car as well as any warranties pending. Since I had over 100k for mileage, I just knew that all warranties had expired, and they were, except for one. There was a 120k Special Coverage warranty (10054) which covers the faulty fuel gauge. I took it to the local dealership and the problem was fixed AT NO CHARGE. Hopefully if anyone paid to get the problem fixed can be properly reimbursed by GM. Otherwise, if your vehicle is under the warranty period, get it fixed.

- dukela, Gonzales, LA, US

problem #3

Jul 062015

Trailblazer LS V6

  • Automatic transmission
  • 90,258 miles

On the way to work, I saw the empty tank indicator come on twice and the tank is 3/4 FULL. When I turn it off, then on, the indicator comes off and the gauge reads 3/4 FULL.

- Art C., Austin, TX, US

problem #2

Jul 132012

Trailblazer 4.7L

  • Automatic transmission
  • 79,000 miles

This problem with the fuel system and light on when my tank is full is very annoying. All I get from customer service is that my vehicle has not been one of the vehicles chosen for the recall and this thing about special coverages. I think you should let everyone know about special coverages that pertain to the vehicle, no matter if its at the time of purchase or when a problem arises, so that the customer knows which route to take.

- William D., Loris, SC, US

problem #1

Jan 152015

Trailblazer SLT V8

  • Automatic transmission
  • 118,000 miles

I filled up the gas tank last week and got it filled up to 3/4 full. Driven three times since then. The first time it was cold (12 degrees below zero) and I figured gauge was frozen. It went back up after driving it for three miles. The second time I drove it, it showed 1/4 tank. Today driving it the empty fuel light comes on, but I know it is not empty. The three times I drove amounted to about 25 miles. Also put in $10.00 worth of gas after seeing the light, but the light stays on. Is there an investigation on this, a recall or something?

Stabilizer light comes on and off also for the past year and a half when ever we drive in snow. sometimes when this happens and we make a sharp turn, feels like the tires, when driving, are oblong.

- Tom P., Trinidad, CO, US

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