2021 Ram 3500 Service and Repair Manual
2021 Ram 3500 service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Designed for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.
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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 wi
An air bag that deploys improperly can increase the risk of injury in a crash.
Dealers will replace the SABIC assemblies, free of charge. Owner notification letters were mailed J
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 sh
A vehicle fire increases the risk of injury.
Owners are advised to park these vehicles outside of buildings or structures, and not near other veh
Chrysler (FCA US, LLC) is recalling certain 2021 Ram 2500, 3500, and 3500, 4500, and 5500 Cab Chassis vehicles equipped with a Cummins 6.7L Turbo Diesel engine. An electrical short may occur in the S
A vehicle fire increases the risk of injury.
Dealers will inspect and, if needed, replace the Solid State Intake Heater Grid Relay ("Relay"); if
FCA US, LLC (Chrysler) is recalling certain 2020-2023 Ram 2500 and 2020-2022 Ram 3500 vehicles. A build-up of pressure and heat inside the transmission may result in a transmission fluid leak from th
Leaking transmission fluid may contact an ignition source within the engine compartment, increasing
Dealers will replace the transmission dipstick and transmission vent assembly, free of charge. Owne
Chrysler (FCA US, LLC) is recalling certain 2019-2022 Ram 2500 and 2021-2022 Dodge Durango vehicles, and 2019-2022 3500 cab chassis with GVWR less than 10,000 lbs. The ABS control module software may
An ESC malfunction indicator light that fails to illuminate during an electronic stability control p
Dealers will update the ABS control module software, free of charge. Owner notification letters wer
Chrysler (FCA US, LLC) is recalling certain 2021-2023 Ram 2500, 3500, 3500 Cab Chassis, and 4500, 5500 Cab Chassis vehicles equipped with a Cummins 6.7L Turbo Diesel engine. An electrical short may o
An electrical short in the relay can result in an engine compartment fire with the ignition on or of
Owners are advised to park outside and away from structures until the recall repair is complete. De
Chrysler (FCA US, LLC) is recalling certain 2019-2022 Ram 1500, 2500, and 3500 pickup trucks. The tailgate may not latch properly due to misaligned tailgate strikers, which could result in the tailga
An unintended tailgate opening while driving may result in a loss of unsecured cargo, possibly creat
Dealers will inspect the tailgate striker alignment to the box latch and adjust, if necessary, free
Chrysler (FCA US, LLC) is recalling certain 2021-2022 Ram 1500, Ram 2500, Ram 3500, Ram 4500, and Ram 5500 vehicles. The steering column control module may cause the driver's side air bag not to deplo
A driver's side air bag that does not deploy as intended increases the risk of injury in a crash.
Dealers will replace the steering column control module, free of charge. Owner notification letters
Radio Message "Power Surge On USB Detected" Customers may comment on the following: The radio displays the message: Power surge on USB hub detected Fig. 1. NOTE: After the message appears, no USB devices function in the hub (no charging, no
Replace K1 Clutch / Input Shaft Assembly Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): P0731-00 - Gear 1 Shift Incorrect Ratio (This D
Radio Message "Power Surge On USB Detected" Customers may comment on the following: The radio displays the message: Power surge on USB hub detected Fig. 1. NOTE: After the message appears, no USB devices function in the hub (no charging, no
Replace K1 Clutch / Input Shaft Assembly Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): P0731-00 - Gear 1 Shift Incorrect Ratio (This D
Radio Message "Power Surge On USB Detected" Customers may comment on the following: The radio displays the message: Power surge on USB hub detected Fig. 1. NOTE: After the message appears, no USB devices function in the hub (no charging, no
Squeak Or Squawk Noise Coming From Either Side Door Of The Vehicle, It Could Be Just One Door Or More. The Noise Can Be Present In Either The Upper Or The Lower Hinge.
Light Random Tick Noise From The Engine.
Diagnostic Trouble Code (DTC) P2459-00 Particulate Filter Regeneration Too Frequent Setting in the Powertrain Control Module (PCM) or Under Fueling or Over Fueling Condition After Fuel Injector(s) Replacement
Showing the 8 most recent of 561 technical service bulletins on file with NHTSA.
The contact filed the complaint on behalf of the customer, who was the owner of a 2021 Ram 3500. The contact stated that while the owner was driving at an undisclosed speed, the vehicle caught on fire
On [XXX] while I was driving in Reno Nevada with the truck without warning smoke started to come out of the hood, fluid was coming out from under truck, fire department came made sure fire was extingu
Our vehicle was involved in a total loss fire from the engine compartment while driving. We were driving the unit and noticed smoke, when we were merging to pull of the road flames started coming up a
Our vehicle was involved in a total loss fire from the engine compartment while driving. We were driving the unit and noticed smoke, when we were merging to pull of the road flames started coming up a
The transmissionâs light came on saying that it was heated. I parked as soon as possible and thatâs when the flames were coming out of the hood. I did burned my hands trying to put out the fire wi
Showing the 5 most serious of 87 complaints filed with NHTSA.
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