Transmission and Drivetrain: Technical Service Bulletins

• Customer Interest
  • A/T - Harsh Shifts/Slipping/DTCs P0741/P0742/P0757/P842
  • A/T- Slips/Overheats/Won't Shift/MIL ON/DTCs P0218/P0894
  • A/T - 4T65E Fluid Leaking From A/T Vent
  • A/T - Key Cannot Be Removed/No Shift From Park
  • Steering - Growl Type Noise Coming from Front of Vehicle
  • A/T - 1-2 Shift Shudder at Light to Moderate Accel.
  • A/T - 4T80-E (MH1) Left Front. Axle Seal Leak, Slipping
• By Symptom
  • Customer Interest
    • A/T - Harsh Shifts/Slipping/DTCs P0741/P0742/P0757/P842
    • A/T- Slips/Overheats/Won't Shift/MIL ON/DTCs P0218/P0894
    • A/T - 4T65E Fluid Leaking From A/T Vent
    • A/T - Key Cannot Be Removed/No Shift From Park
    • Steering - Growl Type Noise Coming from Front of Vehicle
    • A/T - 1-2 Shift Shudder at Light to Moderate Accel.
    • A/T - 4T80-E (MH1) Left Front. Axle Seal Leak, Slipping
  • Difficult gear selection
    • A/T - Key Cannot Be Removed/No Shift From Park
  • Erratic Shifting
    • A/T - 1-2 Shift Shudder at Light to Moderate Accel.
  • Hard Shifting
    • A/T - Harsh Shifts/Slipping/DTCs P0741/P0742/P0757/P842
  • Leaks
    • A/T - 4T65E Fluid Leaking From A/T Vent
    • A/T - 4T80-E (MH1) Left Front. Axle Seal Leak, Slipping
  • No shift/Incorrect gear engagement
    • A/T- Slips/Overheats/Won't Shift/MIL ON/DTCs P0218/P0894
  • Noise
    • Steering - Growl Type Noise Coming from Front of Vehicle
  • Overheating
    • A/T- Slips/Overheats/Won't Shift/MIL ON/DTCs P0218/P0894
  • Slipping
    • A/T - Harsh Shifts/Slipping/DTCs P0741/P0742/P0757/P842
    • A/T- Slips/Overheats/Won't Shift/MIL ON/DTCs P0218/P0894
    • A/T - 4T80-E (MH1) Left Front. Axle Seal Leak, Slipping
• All Technical Service Bulletins
  • Drivetrain - Information on Driveline Clunk Noise
  • Vehicle - Engine And Sub Systems Flushing Info. (CANADA)
  • Vehicle - Engine And Sub-Systems Flushing Recommendations
  • M/T - Operating Characteristics Information
  • A/T - Fluid Oil Cooler Flow Test
  • A/T - 2-3 Upshift or 3-2 Downshift Clunk Noise
  • A/T - Slight Vehicle Movement In Park At Start Up
  • Engine/Transmission - Aftermarket Calibrations
  • A/T - 4L60-E/4L65-E/4L70-E Production Update
  • A/T - Revised Case Cover and Dowel Pins
  • A/T - Harsh Shifts/Slipping/DTCs P0741/P0742/P0757/P842
  • A/T- Slips/Overheats/Won't Shift/MIL ON/DTCs P0218/P0894
  • A/T - Torque Converter Replacement Information
  • A/T - 4T65E Fluid Leaking From A/T Vent
  • A/T - Revised Converter Check Valve/Cooler Line Fitting
  • A/T Control - DTC P0756 Diagnostic Tips
  • END OF NEED FOR INFORMATION
  • A/T - Key Cannot Be Removed/No Shift From Park
  • A/T - Goodwrench Transmission Replacement
  • 08-06-04-033D - BULLETIN CANCELLATION NOTIFICATION
  • A/T - Water Or Coolant Contamination Information
  • Engine, A/T - Identification Information
  • A/T - DEXRON(R)-VI Fluid Information
  • Steering - Growl Type Noise Coming from Front of Vehicle
  • A/T Controls - Snapshot Data With Tech2(R) Information
  • A/T - 1-2 Shift Shudder at Light to Moderate Accel.
  • A/T - Normal Maintenance or Warranty on 4T40, 4T45, 4T65, 4L60
  • 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 - 4T80-E (MH1) Left Front. Axle Seal Leak, Slipping