2018 Ram 5500 Service and Repair Manual

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Factory-Grade Data

2018 Ram 5500 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

  • Tradesman Cab & Chassis 4-Door
  • Base Cab & Chassis - Conventional 2-Door
  • SLT Cab & Chassis 2-Door
  • Laramie Cab & Chassis 4-Door
  • Base Cab & Chassis - Crew Cab
  • ST Cab & Chassis 4-Door
  • SLT Cab & Chassis 4-Door
  • Tradesman Cab & Chassis 2-Door
  • ST Cab & Chassis 2-Door

Engines covered

  • GAS
  • 6.7L 408Cu. In. l6 DIESEL Turbocharged
  • 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

2018 Ram 5500 Recalls & Complaints

NHTSA #19V25500028/03/2019Component: EXTERIOR LIGHTING:BRAKE LIGHTS

Blanchat Mfg., Inc. (Blanchat) is recalling one 2018 B-27 Minuteman vehicle built on a RAM 5500 chassis and equipped with Whelen brake lights recalled under 18E-063. Depending on the specific wiring

Consequence

If the brake lights incorrectly illuminate, it can confuse other drivers, possibly increasing the ri

Remedy

Blanchat has notified the owner, and will replace the brake lights, free of charge. The recall bega

NHTSA #19V35900013/05/2019Component: EXTERIOR LIGHTING:BRAKE LIGHTS

Unruh Fire, Inc. (Unruh Fire) is recalling one 2018 Dodge 5500-based fire truck equipped with Whelen brake lights. Depending on the specific wiring of the vehicle, these brake lights may illuminate w

Consequence

If the brake lights incorrectly illuminate, it can confuse other drivers, possibly increasing the ri

Remedy

Unruh Fire has notified the owner and will provide replacement brake lights, free of charge. The re

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 #11031241

Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.

TSB #11030026

SPEAKER - NONE

TSB #11030025

SPEAKER - NONE

TSB #11027838

Seatbelt Slow Retraction.

TSB #11022027

Verify Reman part number availability. Order the "R" part number for all orders: Warranty, Mopar, customer pay and service contract. Order "68" part number for New unsold units only.

TSB #11021585

LAMP - DOME

TSB #11019776

LAMP - DOME

Showing the 8 most recent of 297 technical service bulletins on file with NHTSA.

20190226Component: UNKNOWN OR OTHERCrash reported

I PARKED MY TRUCK AND TURNED IT OFF. WENT INSIDE AND ABOUT 15 MINUTES LATER MY TRUCK ROLLED DOWN A HILL AND WENT ACROSS A BUSY ROUTE 15 . THE TRUCK WAS STILL IN PARK AND THE ENGINE WAS OFF AND THE WHE

20260507Component: SERVICE BRAKES

recall C4B hydraulic control unit still not addressed as of may 7 2026 recall received on

20260504Component: SERVICE BRAKES

Ref NHTSA 24v-896, Recall C4B The problem started back in 2021 when the anti-lock brake Hydraulic Control Unit failed. It was replaces and then it failed again in Dec 2024 while on vacation. When retu

20260504Component: SUSPENSION

Ref NHTSA 24v-896, Recall C4B The problem started back in 2021 when the anti-lock brake Hydraulic Control Unit failed. It was replaces and then it failed again in Dec 2024 while on vacation. When retu

20260429Component: SERVICE BRAKES, HYDRAULIC

The contact owns a 2018 Ram 5500. The contact received notification of NHTSA Campaign Number: 24V896000 (Service Brakes, Hydraulic); however, the part to do the recall repair was not yet available. Th

Showing the 5 most serious of 47 complaints filed with NHTSA.

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