2021 Volvo VHD Service and Repair Manual

Regular price $49.99 USD
Covers all 2021 VHD trims — Base Straight Truck - Long Conventional, Base Tractor Truck - Long Conventional ·
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2021 Volvo VHD 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

  • Base Straight Truck - Long Conventional
  • Base Tractor Truck - Long Conventional

Engines covered

  • 12.8L 780Cu. In. 6 DIESEL
  • 10.8L 661Cu. In. l6 DIESEL 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
NHTSA #23V76900015/11/2023Component: SEATS:CRITICAL FASTENERS

Volvo Trucks North America (Volvo Trucks) is recalling certain 2019-2024 VN and VHD vehicles. The passenger side bench seat may be inadequately attached to the floor. As such, these vehicles fail to

Consequence

The attachment points may fail, allowing the bench seat to shift and increasing the risk of injury d

Remedy

Dealers will replace the weld nut with two nuts and a washer, free of charge. Owner letters were ma

NHTSA #20V53500002/09/2020Component: STEERING

Volvo Trucks North America (Volvo Trucks) is recalling certain 2021 VNL, VHD, and VNR vehicles. The king pin nut may not have been installed or properly tightened during axle assembly.

Consequence

If the king pin is missing or not tightened properly, the knuckle may separate from the axle, increa

Remedy

Volvo Trucks will notify owners, and dealers will inspect the vehicle to make sure that the king pin

NHTSA #20V53600002/09/2020Component: SERVICE BRAKES, AIR

Volvo Trucks North America (Volvo Trucks) is recalling certain 2020-2021 VAH, VHD, VNL and VNR vehicles. The die cast pedal plate may break at one of its attachment points, possibly resulting in the

Consequence

A dislodged brake pedal would be inoperable, increasing a risk of a crash.

Remedy

Volvo Trucks will notify owners, and dealers will inspect and replace the pedal plates if required,

TSB #11032065

CBR - Volvo Chassis - Model VHD - Splash Shield Rubbing Lower Cowl - Model Year 2018 - Current.

TSB #11030472

CBR - Z Spring Bracket Wear. Volvo Chassis

TSB #11030470

CBR - No Start Condition After Over the Air Programing - VECU5 No Start "Safe State"

TSB #11028025

CBR - Volvo Chassis - I-Shift Transmission - Moisture / Contamination Found In The Transmission Electronic Control Unit (TECU ) Air Ports And Control Housing.

TSB #11028007

CBR - Volvo DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and US22+OBD23 (DOES NOT APPLY TO VN(4))

TSB #11026966

CBR - 3 Liter Engines ONLY - Engine Coolant Pump Housing Leak; Coolant Found Around The Oil Cooler Duct Cover Or In Between The Coolant Pump Housing And Oil Cooler Housing

TSB #11025998

CBR - Frame or Cab Lean

TSB #11025997

CBR - 13 Liter Engines ONLY - Engine Coolant Pump Housing Leak; Coolant Found Around The Oil Cooler Duct Cover Or In Between The Coolant Pump Housing And Oil Cooler Housing

Showing the 8 most recent of 236 technical service bulletins on file with NHTSA.

No complaints filed No consumer complaints on file with NHTSA for the 2021 Volvo VHD.

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