Replacing Keys
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
When the correct number of learned master keys are not available to perform adding keys procedure the 10-minute re-learn procedure must be performed. Refer to Theft Deterrent Control Module Programming and Setup .