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Fuel systemPart report

2007 Chevrolet Trailblazer Fuel system Problems

Complaints
311about this part
Share
42%of 732 total for the year
Median mileage
56,000miles
Trend
FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.

NHTSA recorded 311 complaints about the fuel system of the 2007 Chevrolet Trailblazer, 42% of the 732 complaints for this model year. Where a mileage was given, the median is 56,000 miles. 3 a fire, according to the filers.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Fuel gauge will drop to empty once it hits my half tank reading. I fill tank up and once the fuel gauge reaches half a tank, it will drop to empty as I am driving. It will move erratic while driving. Cannot tell how much gas I have once it reaches 1/2 tank. Afraid to stall while driving and running out of gas. Cannot afford to be filling up gas tank!!”

NHTSA complaint #10479304, filed 2012-10, 74,000 miles

“I filled the tank on may 6, drove 4 miles, got into the car on may 8, 2014 and the gauge showed no fuel and the warning statement on the dashboard said low fuel . I drove to the gas station and was told the tank was full. Took the car in for service and was told that the fuel sensor had to be replaced.”

NHTSA complaint #10587853, filed 2014-05, 44,000 miles

“Driving to work gas gauge showed 1/4 tank of gas. Engine stalled and had to wait for 2 hours before tow truck came. Tow truck operator asked if I ran out of gas. I told him I had a quarter tank left. He suggested putting in 2 gallons and try to start, which it did. Fuel gauge started showing erratic behavior and has since stopped working entirely.”

NHTSA complaint #10399100, filed 2011-05, 102,000 miles

“Like many other owners of the 2007 Trailblazer, I have experienced failure of the fuel gauge. This is the second time it needs replacement in the four years I have owned this vehicle, and GM is not covering it under the warranty. The gauge goes down to zero and the low fuel indicator chimes. Last time around the check engine light also came on.”

NHTSA complaint #10378767, filed 2011-01, 75,000 miles

“I have a 2007 Chevrolet Trailblazer with a faulty gas gauge. The gauge will show how much fuel there is and then it will slowly go down to e . I have to keep records of how much fuel that I put into the vehicle so that I do not run out of gas. This vehicle also has a faulty horn, where I need to turn the steering wheel for the horn to function.”

NHTSA complaint #10398524, filed 2011-05, 34,000 miles

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
202334%
202276%
2021189%
200914%
200884%
200731142%
200660755%
200561142%
200414814%
200318020%
200213211%
200028%

Other parts of the 2007 Chevrolet Trailblazer

Electrical system
200 complaints
Exterior lighting
151 complaints
Visibility (wipers, defrost, mirrors)
82 complaints
Air bags
27 complaints
Steering
23 complaints
Engine
22 complaints
Electronic stability control
17 complaints
Other or unknown
16 complaints
Transmission and drivetrain
15 complaints
Brakes
12 complaints
Engine cooling
12 complaints
Body and structure
11 complaints

← All problems reported for the 2007 Chevrolet Trailblazer

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology