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Fuel systemPart report

2014 GMC Sierra Fuel system Problems

Complaints
1about this part
Share
1%of 101 total for the year
Median mileage
5,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the fuel system of the 2014 GMC Sierra, 1% of the 101 complaints for this model year. Where a mileage was given, the median is 5,000 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

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

“The truck was averaging about 20 mpg but shifting erratically like it couldn't decide what gear to be in. After using the 4wd the first time the mpg dropped off to about 17 and has been declining steadily currently I get 14 to 15 mpg and drive 150 miles per day mostly highway. I have taken it back to the dealer twice they said the computer couldn't get used to my driving style and reprogrammed the computer. When I took it back about the mileage a guy came out and said he could tell if something was stuck and switched the 4wd a few time and said it was fine. …”

NHTSA complaint #10676277, filed 2015-01, 5,000 miles

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
201712%
201524%
201411%
201338%
201125%
201013%
200913%
200823%
200712%
200624%
200554%
200484%
200373%
200231%
2001166%
2000225%
1999264%
1998126%
1997125%
1996198%
199531%
1994158%
199334%
199213%
1989213%

Other parts of the 2014 GMC Sierra

Exterior lighting
63 complaints
Transmission and drivetrain
10 complaints
Electrical system
9 complaints
Engine
8 complaints
Body and structure
8 complaints
Steering
7 complaints
Air bags
5 complaints
Suspension
5 complaints
Visibility (wipers, defrost, mirrors)
5 complaints
Other or unknown
2 complaints
Seats
2 complaints
Electronic stability control
1 complaints

← All problems reported for the 2014 GMC Sierra

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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