2023 Ram 2500 Service and Repair Manual

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Factory-Grade Data

2023 Ram 2500 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.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Wiring diagrams and electrical sections
  • Powertrain, brakes, steering, suspension, HVAC and more

Trims covered

  • Rebel Crew Cab Pickup 4-Door
  • Limited Longhorn Extended Crew Cab Pickup 4-Door
  • Big Horn Extended Crew Cab Pickup 4-Door
  • Big Horn Standard Cab Pickup 2-Door
  • Limited Crew Cab Pickup 4-Door
  • Limited Longhorn Crew Cab Pickup 4-Door
  • Lone Star Extended Crew Cab Pickup 4-Door
  • Limited Extended Crew Cab Pickup 4-Door
  • Tradesman Crew Cab Pickup 4-Door
  • SLT HD Crew Cab Pickup 4-Door
  • HD Limited Crew Cab Pickup 4-Door
  • Lone Star Crew Cab Pickup 4-Door
  • Lone Star Standard Cab Pickup 2-Door
  • Big Horn Crew Cab Pickup 4-Door
  • Laramie Crew Cab Pickup 4-Door
  • Laramie Extended Crew Cab Pickup 4-Door
  • Power Wagon Crew Cab Pickup 4-Door
  • Tradesman Standard Cab Pickup 2-Door

Engines covered

  • 6.4L 6424CC 392Cu. In. V8 GAS OHV Naturally Aspirated
  • 6.7L 408Cu. In. l6 DIESEL OHV Turbocharged

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams

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Vehicle Safety Data

2023 Ram 2500 Recalls & Complaints

NHTSA #23V79900028/11/2023Component: STEERING:STEERING CONTROL MODULE

Chrysler (FCA US, LLC) is recalling certain 2023 Ram 1500 Classic, Ram 3500 Classic, 3500 Cab Chassis, 2023-2024 Ram 2500, 4500/5500 Cab Chassis, and Ram 3500 vehicles. The steering column control mo

Consequence

Turn signals and/or high beams that do not function as intended may cause confusion or reduced visib

Remedy

Dealers will update the steering column control module (SCCM) software, and inspect and replace the

NHTSA #23V65400028/09/2023Component: BACK OVER PREVENTION:DISPLAY FUNCTION

Chrysler (FCA US, LLC) is recalling certain 2022-2023 Ram 1500, Ram 3500 Cab Chassis with GVWR less than 10,000 lbs., and 2022-2024 Ram 2500 vehicles. The radio software may prevent the rearview imag

Consequence

A rearview camera that does not display an image reduces the driver's rear view, increasing the risk

Remedy

Dealers will update the radio software, free of charge. Owner notification letters were mailed Octo

NHTSA #24V19900014/03/2024Component: AIR BAGS:FRONTAL:DRIVER CLOCKSPRING/SPIRAL CASSETTE

Chrysler (FCA US, LLC) (Stellantis) is recalling certain 2023-2024 Ram 1500, Jeep Wrangler, Jeep Wagoneer, Jeep Grand Wagoneer, Chrysler Pacifica, Ram 3500, Ram 3500 cab chassis, Ram 2500, Ram 4500 ca

Consequence

An air bag that does not deploy in a crash can increase the risk of injury.

Remedy

Dealers will inspect and replace the steering column control module, as necessary free of charge. S

NHTSA #22V83500010/11/2022Component: POWER TRAIN:AUTOMATIC TRANSMISSION

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

Consequence

Leaking transmission fluid may contact an ignition source within the engine compartment, increasing

Remedy

Dealers will replace the transmission dipstick and transmission vent assembly, free of charge. Owne

NHTSA #23V05900009/02/2023Component: BACK OVER PREVENTION:DISPLAY FUNCTION

Chrysler (FCA US, LLC) is recalling certain 2021-2023 Ram 1500 and 2023 Ram 2500 vehicles. The trailer reverse steering control module (TRSCM) may prevent the rearview image from displaying when the

Consequence

A rearview image that does not display while in reverse decreases the driver's visibility of the rea

Remedy

Dealers will update the TRSCM software, free of charge. Owner notification letters were mailed Marc

NHTSA #23V06000009/02/2023Component: ELECTRICAL SYSTEM:WIRING:RELAYS/SOLENOIDS

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

Consequence

An electrical short in the relay can result in an engine compartment fire with the ignition on or of

Remedy

Owners are advised to park outside and away from structures until the recall repair is complete. De

NHTSA #26V28800007/05/2026Component: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

Chryser (FCA US LLC) is recalling certain 2023-2026 Ram 2500 Pick up trucks. A software error in the powertrain control module may improperly allow the vehicle speed to exceed the tire speed rating, w

Consequence

Loss of vehicle control increases the risk of a crash.

Remedy

Dealers will update the powertrain control module software, free of charge. Owner notification lette

NHTSA #24V41300006/06/2024Component: POWER TRAIN:AUTOMATIC TRANSMISSION

Chrysler (FCA US, LLC) is recalling certain 2023 Ram 1500, 2500, and 3500 vehicles. An insufficient weld in the transmission control unit can allow transmission fluid to leak on to electrical compone

Consequence

A loss of drive power or a loss of park function increase the risk of a crash.

Remedy

Dealers will replace the valve body and control unit, free of charge. Owner notification letters ar

TSB #11032842

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

TSB #11032824

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

TSB #11032647

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

TSB #11032344

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.

TSB #11031693

No Wireless Charging Or Slow Wireless Charging

TSB #11031683

1) If the fog lamp contains moisture, do not replace it immediately. Turn the fog lamp on for one hour and inspect it afterward. Refer to 23-008-25 Rev.A. Exterior Front Lamps Condensation Clearing Procedure for details. 2) If the fog lamp(

TSB #11031471

Light Random Tick Noise From The Engine.

TSB #11031466

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 319 technical service bulletins on file with NHTSA.

20260221Component: AIR BAGSCrash reported

Head on collision on February 19, 2026 in a 2023 Ram 2500 Rebel. Air bags did not deploy anywhere in the vehicle even though driver was traveling 55-60 MPH. Significant damage occurred in front of veh

20241210Component: AIR BAGSCrash reported

I was in a bad frontal/passenger front wreck and none of my airbags deployed

20240705Component: UNKNOWN OR OTHERCrash reported

Soft close tailgate opened as I was backing up to hook up to my pontoon trailer. I had closed it prior to backing up. Because the tailgate was down, the rear camera did not correctly identify how cl

20240506Component: SERVICE BRAKESCrash reported

I was involved in an accident on May 3rd. 2024. As a result of this accident, I have filed an insurance claim. My brakes failed to stop the truck properly. I was pushing the brake pedal as hard as I

20260108Component: ELECTRICAL SYSTEMFire reported

The contact owned a 2023 Ram 2500. The contact stated that while the vehicle was parked in his driveway, it had spontaneously caught fire. The contact had been alerted by a neighbor when the contact o

Showing the 5 most serious of 63 complaints filed with NHTSA.

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