2023 Ram 1500 Service and Repair Manual

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Factory-Grade Data

2023 Ram 1500 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

  • TRX Crew Cab Pickup 4-Door
  • SLT Crew Cab Pickup 4-Door
  • Big Horn OffRoad Crew Cab Pickup 4-Door
  • Rebel Crew Cab Pickup 4-Door
  • Laramie Extended Cab Pickup 4-Door
  • HFE Extended Cab Pickup 4-Door
  • Limited Crew Cab Pickup 4-Door
  • Laramie Sport Crew Cab Pickup 4-Door
  • Sport Crew Cab Pickup 4-Door
  • Limited Longhorn Crew Cab Pickup 4-Door
  • Tradesman Extended Cab Pickup 4-Door
  • HFE Crew Cab Pickup 4-Door
  • Tradesman Crew Cab Pickup 4-Door
  • Rebel Extended Cab Pickup 4-Door
  • Lone Star Extended Cab Pickup 4-Door
  • Longhorn Crew Cab Pickup 4-Door
  • Hemi Sport Crew Cab Pickup 4-Door
  • Lone Star Crew Cab Pickup 4-Door
  • Sport Extended Cab Pickup 4-Door
  • Big Horn Extended Cab Pickup 4-Door
  • Big Horn Crew Cab Pickup 4-Door
  • Laramie Crew Cab Pickup 4-Door

Engines covered

  • 6.2L 6166CC 376Cu. In. V8 GAS OHV Supercharged
  • 3.6L 3604CC 220Cu. In. V6 MILD HYBRID EV-GAS (MHEV) DOHC Naturally Aspirated
  • 5.7L 345Cu. In. V8 GAS OHV Naturally Aspirated
  • 5.7L 345Cu. In. V8 MILD HYBRID EV-GAS (MHEV) OHV Naturally Aspirated
  • 3.0L 2987CC 182Cu. In. V6 DIESEL DOHC 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 1500 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 #23V26300013/04/2023Component: FUEL SYSTEM, DIESEL:DELIVERY:FUEL PUMP

Chrysler (FCA US, LLC) is recalling certain 2021-2023 Jeep Wrangler, Gladiator, and 2022-2023 Ram 1500 vehicles equipped with a 3.0L diesel engine. The high pressure fuel pump (HPFP) may fail.

Consequence

Fuel pump failure can result in an engine stall, increasing the risk of a crash.

Remedy

Dealers will replace the HPFP and replace additional fuel system components, as necessary, free of c

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 #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 #11032865

SENSOR KNOCK

TSB #11032864

SENSOR KNOCK

TSB #11032863

SENSOR KNOCK

TSB #11032862

SENSOR KNOCK

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 #11032822

Instrument Panel Cluster (IPC) Flicker Turn By Turn The customer may experience flickering on their Instrument Panel Cluster (IPC) when the turn-by-turn feature is enabled. This issue occurs when using Google Maps for Navigation via CarPlay

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

Showing the 8 most recent of 505 technical service bulletins on file with NHTSA.

20241230Component: AIR BAGSCrash reported2 injured

All Air bags Failed to deploy on impact into a semi tractor at 45 MPH

20241230Component: FORWARD COLLISION AVOIDANCE: WARNINGSCrash reported2 injured

All Air bags Failed to deploy on impact into a semi tractor at 45 MPH

20260521Component: AIR BAGSCrash reported1 injured

Ram 1500 Big Horn Limited 2023 was totaled in accident. Front end collision. None of the air bags deployed.

20250527Component: STRUCTURE:BODYCrash reported

Tailgate unlatched one its own when I was backing up. It dropped and struck another vehicles bumper. Tailgate is smashed now. I was watching the back up camera and the tailgate was closed. It electron

20250527Component: ELECTRICAL SYSTEMCrash reported

Tailgate unlatched one its own when I was backing up. It dropped and struck another vehicles bumper. Tailgate is smashed now. I was watching the back up camera and the tailgate was closed. It electron

Showing the 5 most serious of 305 complaints filed with NHTSA.

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