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Recent Bulletins

 

BULLETINS

Diagnostic Overview, Starting Point, and Programming

#20-NA-136 - 9T65 Automatic Transmission Replacement Pilot Program (U.S. Only) - (Jun 26, 2020)

Related To: Automatic Transmission / Vehicle DTC Information

#19-NA-249 - Radio Favorites Grayed Out or Unavailable at Times - (Jun 25, 2020)

Related To: Entertainment / Programming and Setup / Displays and Gauges

#20-NA-100 - Engine Control Module Calibration for T1 L3B Engine with DTC P26BB Set - (Jun 24, 2020)

Related To: Vehicle DTC Information / Programming and Setup / Engine Controls and Fuel

Driver Information and Entertainment

#19-NA-249 - Radio Favorites Grayed Out or Unavailable at Times - (Jun 25, 2020)

Related To: Entertainment / Programming and Setup / Displays and Gauges

Engine

#20-NA-138 - Warranty Administration - Engine and Transmission Assembly Replacement (U.S. Only) - (Jun 23, 2020)

Related To: Engine Mechanical / Manual Transmission / Automatic Transmission / Transfer Case

Engine/Propulsion

#20-NA-132 - Warranty Administration - Battery Testing and Warranty Replacement Requirements (North America ONLY) - (Jun 25, 2020)

Related To: General Information / 12 V Starting and Charging / Battery

#17-NA-166 - Rough Idle in Drive - (Jun 25, 2020)

Related To: Engine Mechanical

#20-NA-100 - Engine Control Module Calibration for T1 L3B Engine with DTC P26BB Set - (Jun 24, 2020)

Related To: Vehicle DTC Information / Programming and Setup / Engine Controls and Fuel

#20-NA-138 - Warranty Administration - Engine and Transmission Assembly Replacement (U.S. Only) - (Jun 23, 2020)

Related To: Engine Mechanical / Manual Transmission / Automatic Transmission / Transfer Case

#20-NA-139 - No Crank No Start - (Jun 22, 2020)

Related To: 12 V Starting and Charging / Engine Mechanical

#PIE0572 - Engineering Information - No Restart After Auto-Stop Event, No Crank, DTCs P0617, P26E6 P305D, U0102, U0284, U0285, U0672, U111A, U111E and/or U1348 - (Jun 22, 2020)

Related To: General Information / Engine Mechanical

Engine/Propulsion MD

#20-NA-138 - Warranty Administration - Engine and Transmission Assembly Replacement (U.S. Only) - (Jun 23, 2020)

Related To: Engine Mechanical / Manual Transmission / Automatic Transmission / Transfer Case

General Information

#20-NA-132 - Warranty Administration - Battery Testing and Warranty Replacement Requirements (North America ONLY) - (Jun 25, 2020)

Related To: General Information / 12 V Starting and Charging / Battery

#20-NA-137 - 2021 Chevrolet Suburban, Tahoe, GMC Yukon and Yukon XL New Model Features - (Jun 25, 2020)

Related To: General Information

#PIE0572 - Engineering Information - No Restart After Auto-Stop Event, No Crank, DTCs P0617, P26E6 P305D, U0102, U0284, U0285, U0672, U111A, U111E and/or U1348 - (Jun 22, 2020)

Related To: General Information / Engine Mechanical

Transmission MD

#20-NA-138 - Warranty Administration - Engine and Transmission Assembly Replacement (U.S. Only) - (Jun 23, 2020)

Related To: Engine Mechanical / Manual Transmission / Automatic Transmission / Transfer Case

Transmission/Transaxle

#20-NA-136 - 9T65 Automatic Transmission Replacement Pilot Program (U.S. Only) - (Jun 26, 2020)

Related To: Automatic Transmission / Vehicle DTC Information

#20-NA-138 - Warranty Administration - Engine and Transmission Assembly Replacement (U.S. Only) - (Jun 23, 2020)

Related To: Engine Mechanical / Manual Transmission / Automatic Transmission / Transfer Case

PRELIMINARY INFORMATION

Body Systems

#PIT5756 - Various Electrical Concerns (Inspect UBEC Bolts For Being Loose) - (Jun 26, 2020)

Related To: Antilock Brake System / Lighting Systems / Entertainment / Displays and Gauges / Wiring Systems and Power Management / 12 V Starting and Charging

Brakes

#PIT5756 - Various Electrical Concerns (Inspect UBEC Bolts For Being Loose) - (Jun 26, 2020)

Related To: Antilock Brake System / Lighting Systems / Entertainment / Displays and Gauges / Wiring Systems and Power Management / 12 V Starting and Charging

#PIT5755 - Diagnostic Tip - Service Stability System Message / MIL DTC U0131 - (Jun 26, 2020)

Related To: Antilock Brake System

#PIT3665J - Brake Pedal Moves or Self Applies at Full Turns - (Jun 26, 2020)

Related To: Hydraulic Brakes / Power Steering

#PIP4902N - Procedure For Emailing Global Diagnostic System 2 (GDS2) Session Log To GM TAC (US and Canada Dealers Only) - (Jun 26, 2020)

Related To: Engine Controls / Antilock Brake System / Automatic Transmission / Engine Controls and Fuel

#PIT5509G - Diagnostic Tip - Check and/or Service Trailer Brake System message DTC C1114 - (Jun 23, 2020)

Related To: Trailer Brake Controls

Driver Information and Entertainment

#PIT5756 - Various Electrical Concerns (Inspect UBEC Bolts For Being Loose) - (Jun 26, 2020)

Related To: Antilock Brake System / Lighting Systems / Entertainment / Displays and Gauges / Wiring Systems and Power Management / 12 V Starting and Charging

Engine

#PIP4902N - Procedure For Emailing Global Diagnostic System 2 (GDS2) Session Log To GM TAC (US and Canada Dealers Only) - (Jun 26, 2020)

Related To: Engine Controls / Antilock Brake System / Automatic Transmission / Engine Controls and Fuel

#PIP5528F - Information Assistance for HFV6 Re-Manufactured Engine Drivability Diagnosis Immediately Following Installation - (Jun 26, 2020)

Related To: Engine Controls / Engine Controls and Fuel

#PIP4912G - Duramax Intermittent High Idle Or Elevated Idle Descriptions - (Jun 26, 2020)

Related To: Engine Controls / Engine Controls and Fuel

Engine/Propulsion

#PIT5756 - Various Electrical Concerns (Inspect UBEC Bolts For Being Loose) - (Jun 26, 2020)

Related To: Antilock Brake System / Lighting Systems / Entertainment / Displays and Gauges / Wiring Systems and Power Management / 12 V Starting and Charging

#PIP4902N - Procedure For Emailing Global Diagnostic System 2 (GDS2) Session Log To GM TAC (US and Canada Dealers Only) - (Jun 26, 2020)

Related To: Engine Controls / Antilock Brake System / Automatic Transmission / Engine Controls and Fuel

#PIP5528F - Information Assistance for HFV6 Re-Manufactured Engine Drivability Diagnosis Immediately Following Installation - (Jun 26, 2020)

Related To: Engine Controls / Engine Controls and Fuel

#PIP4912G - Duramax Intermittent High Idle Or Elevated Idle Descriptions - (Jun 26, 2020)

Related To: Engine Controls / Engine Controls and Fuel

#PIP5675E - MIL illuminated with DTC P1098 and/or P26BB - (Jun 25, 2020)

Related To: Engine Heating and Cooling

#PIP5742 - Belt Chirp Noise and-or Harmonic Balancer Rubbing on Timing Cover - (Jun 23, 2020)

Related To: Engine Mechanical

#PIP5740 - Proactive Alert Identifier SAC004 - (Jun 22, 2020)

Related To: 12 V Starting and Charging

Power and Signal Distribution

#PIT5756 - Various Electrical Concerns (Inspect UBEC Bolts For Being Loose) - (Jun 26, 2020)

Related To: Antilock Brake System / Lighting Systems / Entertainment / Displays and Gauges / Wiring Systems and Power Management / 12 V Starting and Charging

Steering

#PIT3665J - Brake Pedal Moves or Self Applies at Full Turns - (Jun 26, 2020)

Related To: Hydraulic Brakes / Power Steering

Transmission/Transaxle

#PIP4902N - Procedure For Emailing Global Diagnostic System 2 (GDS2) Session Log To GM TAC (US and Canada Dealers Only) - (Jun 26, 2020)

Related To: Engine Controls / Antilock Brake System / Automatic Transmission / Engine Controls and Fuel

#PIP5697D - DTC P0747 Setting At Engine Shut Down When The Transmission Is In Park/Neutral With No Hydraulic/Mechanical Transmission Concern - (Jun 26, 2020)

Related To: Automatic Transmission

#PIP5504E - Diagnosing Fishbite Chuggle Misfire Feeling Or Shudder Vibration, With A Light Tip In - (Jun 25, 2020)

Related To: Automatic Transmission

#PIP5743 - 2.5L LCV 6L50 MYB Rough Idle Or Vibration While In Gear After A Cold Start 800 to 1000 RPM And Or A Short Vibration At A Launch - (Jun 24, 2020)

Related To: Automatic Transmission

#PIP5741 - 2015 2018 8L45 8L90 No Movement After Valve Body Replacement. - (Jun 22, 2020)

Related To: Automatic Transmission

#PIP5738 - 2021 Cadillac Chevrolet GMC Full Size Utility 10 Speed Transmission Restriction - (Jun 22, 2020)

Related To: Automatic Transmission

#PIP5704D - Only 11 Digit PUN (Part Unique Number) Found On Service Solenoid Body Assembly GF9 9T45/50/60/65 - (Jun 22, 2020)

Related To: Automatic Transmission