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Fuel systemPart report

2012 GMC Sierra 2500 Fuel system Problems

Complaints
5about this part
Share
16%of 31 total for the year
Median mileage
68,500miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 5 complaints about the fuel system of the 2012 GMC Sierra 2500, 16% of the 31 complaints for this model year. Where a mileage was given, the median is 68,500 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.

“While traveling on the interstate at speed and passing slower traffic; engine power fell off, change fuel filter now, engine derate, and check engine lite, occured. I had to maneuver with no power through the traffic to get out of the travel lanes. I was then stranded on the interstate as the truck would not start. I was able to get a mechanic to come and change the fuel filter on the side of the highway, but the truck would not start. The truck was eventually towed to a shop where it was diagnosed with a catastrophic failure of the fuel pump (diesel motor driven pump).”

NHTSA complaint #11366632, filed 2020-10, 70,000 miles

“Fuel filter housing contains a primer pump. Needed for a diesel. Seals within that pump failed allowing air into the system. Vehicle is 8 years old and only has 67k miles on it. This caused the motor to quit while in motion. In yellowstone park.”

NHTSA complaint #11355268, filed 2020-09, 67,000 miles

“Driving east bound on i70 coming into denver. Truck shut off with no warning at 80mph on steep downhill grade causing loss of all power facilities in the truck. No brakes, no power steering. I endangered the lives of every single person on the road thanks to this failed fuel pump. Further investigation shows bosch (the pump manufacturer) had instructed GM to use a lift pump on this item and they have disregarded that recommendation leaving people in danger of serious injury or death. …”

NHTSA complaint #11123431, filed 2018-08, 150,000 miles

“Truck is a diesel. Fuel pump blew up and died in the middle of the street. Now I'm being told the Fuel system needs completely re done and will cost me 10g. I also found a lawsuit for this issue as well.”

NHTSA complaint #11541273, filed 2023-08

“The contact owns a 2012 Gmc SIERRA 2500. While driving approximately 35 MPH, the check engine warning indicator illuminated. The following day, while driving approximately 35 MPH, the service exhaust fluid system , see owners manual now , and 97 miles before 65 MPH nax speed messages appeared. The contact drove the vehicle to the dealer (trice hughs GM in princeton, kentucky) where it was diagnosed that the in tank fuel sensor, three glow plugs, and the nox sensor had shorted and needed replacement. The vehicle was repaired. The manufacturer was notified of the failure. …”

NHTSA complaint #11054571, filed 2017-12, 39,000 miles

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
202617%
202514%
202498%
202249%
202124%
202023%
2019619%
2018617%
201738%
20161220%
20151213%
2014310%
2013920%
2012516%
201135%
200926%
200846%
200734%
200623%
200533%
200486%
2003159%
2002129%
2001129%
200024%
199926%
1998213%
199717%

Other parts of the 2012 GMC Sierra 2500

Air bags
8 complaints
Other or unknown
7 complaints
Electrical system
4 complaints
Body and structure
4 complaints
Transmission and drivetrain
4 complaints
Engine
3 complaints
Tires
2 complaints
Suspension
1 complaints
Vehicle speed control
1 complaints
Wheels
1 complaints

← All problems reported for the 2012 GMC Sierra 2500

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