2006 GMC Sierra 3500 Service and Repair Manual

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Factory-Grade Data

2006 GMC Sierra 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.

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

  • WT Crew Cab Pickup 4-Door
  • SLT Crew Cab Pickup 4-Door
  • WT Extended Cab Pickup 4-Door
  • SLE Extended Cab Pickup 4-Door
  • WT Cab & Chassis 4-Door
  • SL Crew Cab Pickup 4-Door
  • SL Extended Cab Pickup 4-Door
  • SLE Cab & Chassis 4-Door
  • SL Cab & Chassis 2-Door
  • WT Cab & Chassis 2-Door
  • SLE Cab & Chassis 2-Door
  • SLE Crew Cab Pickup 4-Door
  • SL Standard Cab Pickup 2-Door
  • SLT Extended Cab Pickup 4-Door
  • WT Standard Cab Pickup 2-Door
  • SL Cab & Chassis 4-Door
  • SLE Standard Cab Pickup 2-Door

Engines covered

  • 6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged
  • 6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirated
  • 8.1L 496Cu. In. V8 GAS OHV Naturally Aspirated

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

2006 GMC Sierra 3500 Recalls & Complaints

No active recalls The 2006 GMC Sierra 3500 has no recalls on file with NHTSA.
TSB #11020816

This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.

TSB #11019074

This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.

TSB #11019073

This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.

TSB #11019072

This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.

TSB #11017252

This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.

TSB #11012907

This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.

TSB #11010544

This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.

TSB #11008956

This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. and Canada Dealers Only).

Showing the 8 most recent of 165 technical service bulletins on file with NHTSA.

20151007Component: AIR BAGSCrash reported1 injured

INVOLVED IN ACCIDENT, VEHICLE DRIVEN INTO REAR OF PICK-UP AND U-HAUL TRAILER ON HIGHWAY 50 CANYON CITY,CO ,LEFT FRONT SIDE OF GMC 3500 DESTROYED ALONG WITH HOOD AREA AND THE AIRBAGS DID NOT DEPLOY.

20080215Component: ENGINE AND ENGINE COOLING:ENGINEFire reported

TL*THE CONTACT OWNS A 2006 GMC SIERRA 3500. WHILE DRIVING 10-75 MPH, THE ENGINE STALLED. THERE WAS A LOSS OF POWER STEERING AND BRAKES. THE VEHICLE WOULD RESTART BY ITSELF AFTER DRIFTING FOR 50 YAR

20080215Component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEMFire reported

TL*THE CONTACT OWNS A 2006 GMC SIERRA 3500. WHILE DRIVING 10-75 MPH, THE ENGINE STALLED. THERE WAS A LOSS OF POWER STEERING AND BRAKES. THE VEHICLE WOULD RESTART BY ITSELF AFTER DRIFTING FOR 50 YAR

20260130Component: AIR BAGS

The front impact sensor, also known as a crash sensor (part # 10370150), is no longer functional. It detects rapid vehicle deceleration during a frontal collision and sends an immediate signal to the

20170511Component: SERVICE BRAKES

TL* THE CONTACT OWNS A 2006 GMC SIERRA 3500. WHILE THE VEHICLE WAS STATIONARY, THE POWER STEERING FLUID LEAKED INTO THE BRAKING SYSTEM AND CAUSED THE BRAKES TO SEIZE. THE VEHICLE WAS REPAIRED AND ALL

Showing the 5 most serious of 14 complaints filed with NHTSA.

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