Visual/Physical Inspection

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Inspect for aftermarket devices which can affect the operation of the cruise control system. Refer to Checking Aftermarket Accessories .
Inspect the accessible system components or the visible system components for obvious damage or for obvious conditions which can cause the symptom.