One problem related to other fuel system tank assembly has been reported for the 2012 GMC Sierra 2500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 GMC Sierra 2500 based on all problems reported for the 2012 Sierra 2500.
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. The approximate failure mileage was 39,000.
| Other Fuel System Pump problems | |
| Other Fuel System Tank Assembly problems | |
| Other Fuel System problems |