*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Engine and engine coolingFire
The contact owned a 2012 Dodge Ram 3500. The contact stated that while the vehicle was parked, a fire started under the hood. The fire was extinguished by the fire department. The hood was completely consumed by the fire. The fire department declared the vehicle a total loss. The contact stated that inspection by the fire department declared that the fire was an electrical fire that started on the driver's side under the hood. The contact associated the failure with NHTSA Campaign Number: 14V635000 (Engine and Engine Cooling, Fuel System, Diesel); however, the VIN was not included in the recall. The manufacturer was contacted by phone and was made aware of the failure. The failure mileage…
Aug 17, 2026 · 259,500 milesEngine
Driving my 2012 dodge ram 3500, just as I was crossing one of the busiest intersections in my town my truck lost all power and dropped from 35mph to 5 mph. Barley made it acrossed and pulled over. As soon as I pulled over the engine light comes on, checked code, and U010C lost coms with turbo actuator comes up. Turned truck off and rest code and everything back to normal. About a week later it happened again, luckily not as busy of a spot. Called dealer and soonest appointment was in April. Meanwhile I look up code and see hundreds of post for same issue, bad actuator replace. 28 years as a diesel mechanic for the military, so I found the part online and ordered. Replaced the actuator,…
Nov 28, 2025Steering
The contact owns a 2012 Dodge Ram 3500. The contact stated that while driving 70 MPH, the steering wheel was loose. The contact pulled over and discovered that the steering shaft had detached. The vehicle was towed to an independent mechanic, who repaired the steering shaft. The manufacturer was not made aware of the failure. The failure mileage was approximately 151,000.
Apr 3, 2026 · 151,000 milesAir bags
This truck has had to have several high temp burnoffs because of failures in the EGR and Carbon build up. The recent recall for Rams does not cover the 2012, and began at 2013, however, we are experiencing the same exact issues with the same type of system. In addition, we have had repeated airbag issues due to the positioning of the cockspring and wiring getting choked out.
Sep 2, 2025Wheels
Drivers side rear wheel broke loose from hub and bounced into the opposing lane of traffic.
Sep 8, 2025Engine and engine cooling
The contact owns a 2012 Ram 3500. The contact stated that while that while the vehicle was in for service, the independent mechanic discovered fuel leaking from the fuel filter heater assembly. The contact was advised that the fuel filter heater assembly needed to be replaced. The vehicle was not yet repaired. The manufacturer and local dealer were notified of the failure, but no assistance was offered. The contact was informed that the vehicle was previously repaired under NHTSA Campaign Number: 14V635000 (ENGINE AND ENGINE COOLING, FUEL SYSTEM, DIESEL). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 202,000.
Mar 6, 2025 · 202,000 milesElectrical system
The wireless ignition module loses connection internally and the truck will lose power while driving. It usually happens when hitting a small bump and the key in the ignition moves. Truck loses electrical power which shuts the engine off which means loss of power steering and brakes.
Feb 13, 2025Power train › Axle assembly
The contact owns a 2012 Ram 3500. The contact stated that while driving uphill at 55 MPH, the contact became aware that the vehicle was not exceeding 55 MPH. The contact stated that the check engine warning light was illuminated. The contact continued driving to the destination. The vehicle was parked; however, upon inspection, the contact became aware that there were damages on top of the front driverâs side ball joint, the rear driverâs side axle leaf spring shackle, and the driverâs side overload spring. Additionally, there were metal fragments found in the engine oil, and a diagnostic scan retrieved DTC: P0087, P0471, U029D. The vehicle was taken to a local dealer where it was…
Nov 29, 2024 · 215,000 miles
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.