Service Bulletin #:  05-07-31-001A Date: August 17, 2005 Subject:  Clutch Pedal Does Not Return to Up Position During Shifts at Hight Engine RPMs (Inspect Date Code and Replace Clutch Kit) Model(s): 2005 Chevrolet Corvette with Tremec T56 6... Read More

DATE: October 21, 2004 SUBJECT: Service Bulletin 04-07-29-003Mis-Machined Transmission Countershaft SnapRing Groove (Inspect/Replace the Transmission) MODELS: 2005 Chevrolet Corvette2005 Cadillac CTS-V with 6-speed manual transmissionCorvette... Read More

Models: 2006 Chevrolet Corvette with 6L80 Automatic Transmission (RPO MYC) Purpose This bulletin introduces and highlights features of the new Hydra-Matic 6L80 Automatic Transmission. Introduction The Hydra-Matic 6L80 is the first member of a new... Read More

Service Bulletin #:  1741321 Date: December 9, 2005 Subject:  Automatic Transmission, Busy Shifting, MIL Illuminated, DTC P1751 Model(s): 2006 Chevrolet Corvette, 2006 Cadillac XLR-V and STS-V, 2007 Cadillac Escalade, 2007 GMC Yukon... Read More

Owners of some 2005 Chevrolet Corvettes and 2004 - 05 Cadillac XLRs may experience a no-crank condition, with no codes in any module. The concern may be followed by an inoperative transmission range indicator (PRNDL). The Tech 2 will show the... Read More

The following service bulletin was issued by Chevrolet in May of 1986 and contains excellent tips for tracking down hard to find fluid leaks which can be applied to all vehicle lines.Subject: Fluid Leak DetectionSource: Chevrolet Dealer Service... Read More

Subject:  4L60-E, 4L65-E Automatic Transmission Fluid Leak from Oil Pump or Bell Housing Area (Remove Small Burrs on Torque Converter Hub, Pump Drive Slots and Replace Torque Converter Hub-to-Oil Pump Seal Assembly (243)Models:  2006... Read More

Service Bulletin #:  06-07-30-002 Date: January 20, 2006 Subject:  6L80 Automatic Transmission Delayed Engagement From PARK to DRIVE or PARK to REVERSE (Reprogram Transmission Control Module (TCM)) Model(s): 2006 Chevrolet Corvette with... Read More

Service Bulletin #:  02-07-30-024B Date: August 2005 Subject:  Diagnosis of Cracked or Broken Transmission Case Model(s): 2006 and Prior Cars and Light Duty Trucks2006 and Prior Hummer H22006 Hummer H32005-2006 Saab 9-7Xwith 4L60/4L60-E... Read More

Service Bulletin #:  02-07-30-001D Date: December 2005 Subject:  Diagnostic Information on Diagnostic Trouble Code (DTC) P0894 and P1870 Model(s): 2000-2006 GM Passenger Cars and Light Duty Trucks2003-2006 Hummer H22006 Hummer H32005-2006... Read More