2012 RAM 3500 Problems: 4 Known Issues
2012 model year · 4,500+ owner reports · Updated October 2026
According to Au7o's analysis of 4,500+ owner reports, the 2012 RAM 3500 has 4 documented known issues, with 1 rated critical. The most serious is 68RFE Automatic Transmission Failure When Towing ($400-$8,000 repair). The most commonly reported issue is 68RFE Automatic Transmission Failure When Towing with 4,500 owner reports. Across all issues with published estimates, repair costs range from $80 to $8,000. DIY maintenance guides at au7o.io.
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All 4 Known Issues
NHTSA Recalls22 recalls
ELECTRICAL SYSTEM:WIRING:RELAYS/SOLENOIDS
Chrysler (FCA US, LLC) is recalling certain 2021-2022 Ram 3500, 2500 pickup trucks, and Ram 3500, 4500, and 5500 cab chassis vehicles equipped with Cummins 6.7L Turbo Diesel engines. An electrical short in the relay may cause a vehicle fire with the ignition on or off.
AIR BAGS:SIDE/WINDOW:CURTAIN
Chrysler (FCA US, LLC) is recalling certain 2021-2022 Ram 2500, Ram 3500, and 2021 Ram 1500 Classic pickup trucks. The side air bag inflatable curtain (SABIC) assemblies may have been manufactured with the incorrect amount of compressed gas, which can result in an improper air bag deployment.
ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
Chrysler (FCA US, LLC) is recalling certain 2025-2026 Ram 1500 Pickup, Ram 2500 Pickup, Ram 3500 Pickup, Ram 3500 Cab Chassis, Ram 4500 Cab Chassis, and Ram 5500 Cab Chassis vehicles. A software error may cause the instrument panel display to fail. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standards numbers 102, "Transmission Shift Position Sequence," 105, "Hydraulic and Electric Brake Systems," 108, "Lamps, Reflective Devices, and Associated Equipment," 126, "Electronic Stability Control Systems for Light Vehicles," 135, "Light Vehicle Brake Systems," 138, "Tire Pressure Monitoring System," and/or 208, "Occupant Crash Protection."
EXTERIOR LIGHTING:BRAKE LIGHTS
Chrysler (FCA US, LLC) is recalling certain 2024-2026 Jeep Wagoneer S, 2025-2026 Ram 1500 Pickup, Ram 2500 Pickup, Ram 3500 Pickup, Ram 3500 Cab Chassis, Ram 4500 Cab Chassis, Ram 5500 Cab Chassis, and 2026 Jeep Cherokee vehicles. Due to an improperly designed trailer tow module, the trailer lights may fail to illuminate and the trailer brakes may fail.
POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL)
Chrysler (FCA US, LLC) is recalling certain Ram 2500 and Ram 3500 vehicles equipped with a 3.5" cluster and column shifter. A software error may cause the gear selection display to be inaccurate. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 101, "Control and Displays."
+ 17 more recalls. Check all on NHTSA.gov
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Frequently Asked Questions
What are the most common RAM 3500 problems?
According to Au7o's analysis of 4,500+ owner reports, the 2012 RAM 3500 has 4 documented issues. The most frequently reported are: 68RFE Automatic Transmission Failure When Towing, Exhaust Manifold Stud Failure (6.7L Cummins), Front Hub Bearing Failure Under Heavy Load. Of these, 1 is rated critical and should be addressed promptly.
Is the RAM 3500 reliable?
The 2012 RAM 3500 has 4 known issues documented across 4,500+ owner reports. 1 issue is rated critical: 68RFE Automatic Transmission Failure When Towing. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common RAM 3500 problems?
Repair costs for known RAM 3500 issues range from $80 to $8,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, 68RFE Automatic Transmission Failure When Towing, typically costs $400-$8,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2007-2018 RAM 3500 68RFE Automatic Transmission Failure When Towing?
The 2007-2018 RAM 3500 with the 68RFE 6-speed automatic transmission suffers from premature failure when towing heavy loads (over 10,000 lbs). The 68RFE is a derivative of the older 545RFE and was not adequately engineered for the torque output of the 6.7L Cummins. The overdrive… Repairs typically run $400-$8,000. Severity: high.
What is the 2010-2025 RAM 3500 Exhaust Manifold Stud Failure (6.7L Cummins)?
The exhaust manifold mounting studs on the 6.7L Cummins break due to repeated thermal expansion and contraction cycles. Broken studs allow the manifold to separate from the cylinder head, creating exhaust leaks that produce a ticking noise and reduce turbo efficiency. The center… Repairs typically run $400-$1,200. Severity: medium.
What is the 2010-2025 RAM 3500 Front Hub Bearing Failure Under Heavy Load?
The front hub bearings (wheel bearing assemblies) in the RAM 3500 fail prematurely, particularly on trucks that carry heavy loads in the bed or tow heavy trailers. The factory hub bearings are adequate for unloaded driving but wear rapidly under sustained heavy GVWR/GCWR conditio… Repairs typically run $300-$700. Severity: medium.
What is the 2010-2025 RAM 3500 Grid Heater Relay Failure (6.7L Cummins)?
The intake grid heater relay fails, preventing the grid heater from warming intake air during cold starts. The grid heater draws significant current (up to 200 amps), and the relay contacts eventually burn and weld or fail open. Without the grid heater, cold-start performance deg… Repairs typically run $80-$250. Severity: medium.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.