Drivetrain - Rear Differential Fluid Leak Bulletin No.: 03-04-20-006 Date: November 18, 2003 TECHNICAL Subject: Fluid Leak at Rear Axle (Replace Left Differential Side Cover 0-Ring and Left Axle Shaft Seal, Add Sealant to Side Cover Flange) Models:... Read More

Corvette and Cadillac XLR Partway through model year 2003, a new fuel tank system was introduced on the Corvette (fig. 1). This system continues with slight differences in the 2004 Corvette and Cadillac XLR. TIP: For 2003 Corvettes only, this... Read More

This information applies to the 2004 Cadillac XLR and the 2005 Chevrolet Corvette and newer. Use special care when removing or installing the HVAC module for service. The HVAC module is seated between a non-removable upper and lower tie bar (fig. 11 ... Read More

When a 2004 Cadillac XLR is ordered with the optional XM radio, the antenna is shipped loose. It must be installed before delivery of the vehicle (at customer request). A detailed instruction sheet is supplied with the antenna kit. Here are some... Read More

Cross-drilled brake rotors (fig. 16 -attached) are being used on the 2005 1/2 Pontiac Grand Prix GXP, and available on the 2005 Chevrolet C6 Corvette and the upcoming Cadillac XLR-V. If required, these brake rotors can be machined on a lathe in a... Read More

From GM TechLink, August 2004: The 2005 Corvette keyless access system uses a coded transmitter fob. With the transmitter fob inside the passenger compartment, pressing the START button on the instrument panel starts the engine. The engine is turned... Read More

New drive axle boot pliers (fig. 6) CH-48894 have been released for these vehicles: 2005 Cadillac XLR 2005-08 Corvette, Equinox, Impala, Monte Carlo, Grand Prix, Torrent 2006-08 HHR, Hummer H3 2007 Acadia, Outlook, VUE, Rainier, Enclave 2008 VUE... 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

Service Bulletin #:  05-07-30-023 Date: September 2005 Subject:  New Product Announcement -- Hydra-Matic 6L80 Automatic Transmission Model(s): 2006 Cadillac STS-V, XLR-V 2006 Chevrolet Corvette with 6L80 Automatic Transmission (RPO MYC... Read More

Bulletin No:  05-08-46-009 Date:  November, 2006 Subject:  Language Change for OnStar System (U.S. Only) Models: 2006 Buick LaCrosse, Lucerne, Rainier 2006 Cadillac DTS, STS, XLR 2006 Chevrolet Cobalt, Corvette, Equinox, HHR, Impala,... Read More