Transmission Models Bulletin # Subject

1 IMPORTANT BULLETINS AND PIs FOR Transmission TECHNICIANS. The listing below is accurate as of August 31, 2012 and will change with time. It is important to follow strategy-based diagnosis and check eSI for the latest bulletins and PIs. This list is also published in TechLink, September 2012. TechLink can be accessed through the eSI home page. TRAINING. TECHNICAL ASSISTANCE. Transmission Training Classes 877-446-8227. available in Transmission Models Bulletin # Subject 2011 & Prior - All 02-07-30-052H Automatic Transmission Oil Cooler Flow Test Essential Tool J-45096 TransFlow . Product Quality Center (PQC) Information for Engine, Transmission and Transfer Case Assembly 02-07-30-029R. All Replacement Authorization Request Process 2013 & Prior - All Information for Dealers Not Required to Contact Product Quality Center (PQC) for Transmission 12-07-30-001. Replacement Authorization 2011 - 2013 Silverado, Sierra PIP4560L Allison LCT1000 TAC TCM Part Restriction Check Engine Light and a Condition of No Reverse a Neutral or a High Gear Start with Codes P0761 and Allison 2011 - 2012 Silverado, Sierra PIP4994.

2 P0873. Clunk Noise or Harsh 6-5 Downshift at 50 - 70 MPH Harsh 4-3 Downshift or Harsh 3-2 Downshift at Lower 2012 Silverado, Sierra PIP5012B. Speeds 2012 & Prior - All 01-07-30-042G Information on 2-3 Upshift or 3-2 Downshift Clunk Noise 4L60 Replace The Internal Transmission Wiring Harness And TCC Enable Solenoid Anytime The Transmission Is 2012 - All PIP5009E. In For Service Malfunction Indicator Lamp (MIL) With DTC P0741 Set Intermittent Service Engine Soon (SES) Lamp Illumination During Light Throttle Operation, DTC P0843. 08-07-30-018. 2007 - 2008 - All (Inspect for Torn Torque Converter O-Ring). 4T45 PIP4416A Intermittent Stall When Coming To A Stop or Engine Chuggles prior to a Stop 2008 - All 08-07-30-034 No Reverse, Binds in Reverse, No Movement, DTC P0756. 2007 - 2009 - All PIP4651 Soft Shifts, Erratic Shifts, DTC P1811. Transmission Oil Leaking From Transmission Vent (Replace Transmission Case Cover (Channel Plate). 1997 - 2009 All 01-07-30-032E. Gasket). 4T65 2001 - 2011 All 06-07-30-023E 1-2 Shift Shudder at Light to Moderate Acceleration (Replace 2nd Clutch Plates and Sealing Rings).

3 Information On 4T65-E MN7, M15 and M76 Front Wheel Drive Automatic Transmission Valve Body 2001 - 2008 All 08-07-30-002A. Reconditioning Page 1. IMPORTANT BULLETINS AND PIs FOR Transmission TECHNICIANS. Transmission Models Bulletin # Subject Left Front Axle Seal Leak, Transmission Slips in Gear (Replace Third Clutch Housing with Revised Service 2001 - 2008 All 08-07-30-009B. Part). Tick or Buzz Type Noise from Center of Instrument Panel Area When TCC is Applied (Install Transmission 2007 - 2009 DTS 08-07-30-043A. 4T80 Range Selector (Shift) Cable Dampener). 2007 - 2010 Lucerne, DTS 10-07-30-006B Transmission Moan/Whine Noise from Final Drive Carrier Assembly at Low Speeds 24-48 km/h (15-30 mph). 2010 - 2011 Lucerne, DTS PI0331A Transmission Final Drive Gear Whine Noise at Low Speeds Between 24-48 km/h (15-30 mph). Slips in Reverse or Third, Delayed Reverse or Drive Engagement, DTC P0776, P2715, P2723, Harsh 2-3 Shifts 2006 - 2009 All 09-07-30-004. (Inspect 1-2-3-4 / 3-5-R Housing and Pump Seal Rings).

4 2010-2012 All PI0488 Diagnostic Information for Transmission No Forward, No Reverse, Slips, Cracked/Split Fluid Filter Tick or Rattle Noise from Front of Dash, Transmission Filler Tube Cracked or Broken (Inspect Filler Tube, 2007-2011 Full Size Trucks PI0522. Replace Tube as Necessary). 6L80 Transmission Over Temperature, Malfunction Indicator Lamp (MIL) Illuminated, DTC U0101 Set (Inspect 2011 - 2012 Silverado, Sierra w/6L90 PI0531. Transmission Cooler Lines). 2012 CTS, Camaro w/V6 Engine PI0700A Shudder Feel While Driving in 40-50 MPH Range 2006-2012 All PI0773 Diagnostic Tips for DTC P0796, Slip or No 4th, 5th or 6th Gear 2007 - 2012 All RWD w/6L46/6L50 PIP4554 Clunk Noise After Shifting From Reverse To Drive Or Drive To Reverse And Then Accelerating 2009 - 2012 All PI0075 Automatic Transmission Fluid (ATF) Appears Dark 2011 - 2013 All PI0324 No Forward, No Reverse, No Crank, Engine Cranks But Will Not Start (Inspect Transmission Pump). Malfunction Indicator Lamp (MIL) Illuminated, DTC P2714, Slip or Flare when Shifting in 2nd or 6th Gear 2011 All PI0376.

5 6T40 (Inspect Channel Plate and Spacer Plate). PI0604B Information on 6T30/6T40/6T45/6T50 Automatic Transmission Product Updates 2012 All PI0667 DTC P0713, P06AE Set After Replacement of Control Solenoid Valve (TEHCM). PI0670 Diagnostic Tips for DTC P0776, Slips in or No Reverse, Third, Fifth 2011 Equinox, Terrain PI0724 Harsh 2-3 Shift No Reverse, 3rd or 5th, Check Engine Light Illuminated, DTC P0776 (Replace 3-5 Reverse Clutch Plate 09-07-30-012. (Waved). 2007 - 2009 All 3-5-R Wave Plate - Emerging Issues Video On Demand, February, 2011 PIP4952 Possible No Drive And Or Default 5th Gear And DTC P2723 May Be Set After A Transmission Repair 6T70. Malfunction Indicator Lamp (MIL) Illuminated, DTC P0741, Transmission Slips after a Transmission Repair 2008 - 2010 All PI0380. (Inspect Upper Channel Plate). 2007 - 2011 All PI0448 Malfunction Indicator Lamp (MIL) Illuminated, DTC P0752, P0872, P0877 and/or P0989 Set 2007 - 2012 All PI0475 Diagnostic Information for Transmission Overtemperature DTCs P0218 or P0634.)

6 Manual 2013 & Prior All 03-07-29-004H Manual Transmission Operating Characteristics transmissions 2011-2012 Cruze PI0421B Fluid Leak after Clutch Actuator Replacement 12-04-21-001A Transfer Case Identification First Design vs. Second Design PI0396 Revised Transfer Case Front Output Shaft Seal and Slinger Installation Tool 2007-2012 FST w/NQF, NQG, NQH or NP0. PI0615 Transfer Case Output Shaft Slinger and Seal Revision Transfer Cases PIP4975 Transmission Fluid Leak From Transfer Case Adapter To Transmission 2007-2013 Silverado, Sierra w/NQG PIP4885E NQG 4WD Models With Noise Vibration On Dry Pavement 2012 & Prior All PIP3300E 4WD Models With Noise, Vibration On Dry Pavement Page 2.