Transmission Control Systems: Technical Service Bulletins

• Customer Interest
  • AWD/4WD System - Delayed Front Wheel Engagement
  • 4X4 System - Service 4WD Lamp ON/4WD Inoperative
  • Drivetrain - 4X4 Lamp Flashing/4WD Inoperative/DTC's Set
  • AWD/4WD - AWD/4WD Lamps/System Inop./DTC C0550
  • Audio System - Buzzing From Rear Speakers
  • Drivetrain - Service 4WD Light/DTC C0374 Set
  • Drivetrain - Transfer Case Grinds In 4WD/AWD
• By Symptom
  • Customer Interest
    • AWD/4WD System - Delayed Front Wheel Engagement
    • 4X4 System - Service 4WD Lamp ON/4WD Inoperative
    • Drivetrain - 4X4 Lamp Flashing/4WD Inoperative/DTC's Set
    • AWD/4WD - AWD/4WD Lamps/System Inop./DTC C0550
    • Audio System - Buzzing From Rear Speakers
    • Drivetrain - Service 4WD Light/DTC C0374 Set
    • Drivetrain - Transfer Case Grinds In 4WD/AWD
  • Erratic Operation
    • AWD/4WD System - Delayed Front Wheel Engagement
  • False instrument warning light/gauges
    • 4X4 System - Service 4WD Lamp ON/4WD Inoperative
  • Inoperative
    • 4X4 System - Service 4WD Lamp ON/4WD Inoperative
    • Drivetrain - 4X4 Lamp Flashing/4WD Inoperative/DTC's Set
    • AWD/4WD - AWD/4WD Lamps/System Inop./DTC C0550
  • Noise
    • Audio System - Buzzing From Rear Speakers
    • Drivetrain - Transfer Case Grinds In 4WD/AWD
• All Technical Service Bulletins
  • Engine Controls - Non-GM Engine/Transmission Calibration ID
    • Overview
    • Table of Contents
    • Sections
      • Section 1
      • Section 2
      • Section 3
      • Section 4
      • Section 5
      • Section 6
      • Section 7
      • Section 8
      • Section 9
      • Section 10
      • Section 11
      • Section 12 - Waranty Information
  • A/T Controls - Snapshot Data With Tech2(R) Information
  • AWD/4WD System - Delayed Front Wheel Engagement
  • 4X4 System - Service 4WD Lamp ON/4WD Inoperative
  • Drivetrain - 4X4 Lamp Flashing/4WD Inoperative/DTC's Set
  • AWD/4WD - AWD/4WD Lamps/System Inop./DTC C0550
  • Audio System - Buzzing From Rear Speakers
  • Drivetrain - Transfer Case Control Module Replacement
  • Drivetrain - Updated Transfer Case Speed Sensor Conn.
  • A/T - Shift Lock Control Actuator Available
  • Drivetrain - Service 4WD Light/DTC C0374 Set
  • Drivetrain - Transfer Case Grinds In 4WD/AWD