2012 Dodge Ram 2500 fuel/propulsion system problems
24 owner complaints filed with NHTSA name the fuel/propulsion system on the 2012 Dodge Ram 2500 — 8% of all complaints for this model year.
What owners report
“My passenger headlights keeps going in and out. The wiring harness has been replaced twice and it still does it. My check engine light keeps coming on for the evap system even though its been replaced.”
filed Jan 4, 2026
“Our 2012 RAM 2500 truck with 135k miles, had it's fuel tank fail. The dealership in Oak Ridge, TN tested the vehicle and found that the gas tank tubes were broken causing us to not be able to fill the tank. The dealership recommended "NEED TO REPLACE GAS TANK". Mopar aka Stellantis does not make…”
filed Nov 6, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Fuel/propulsion System problems in other Ram 2500 years
| Year | Reports | Share |
|---|---|---|
| 2011 Ram 2500 | 17 | 6% |
| 2010 Ram 2500 | 8 | 3% |
| 2009 Ram 2500 | 3 | 1% |
| 2008 Ram 2500 | 3 | 1% |
| 2007 Ram 2500 | 4 | 1% |
| 2006 Ram 2500 | 11 | 2% |
| 2005 Ram 2500 | 3 | 1% |
| 2004 Ram 2500 | 10 | 2% |
| 2003 Ram 2500 | 2 | 0% |
| 2002 Ram 2500 | 2 | 1% |
| 2001 Ram 2500 | 3 | 1% |
| 2000 Ram 2500 | 2 | 1% |
Other reported problem areas on the 2012 Dodge Ram 2500
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.