DTC Descriptor
WARNING: This page is about a different car, the 2006 Isuzu Ascender, 2006 GMC Envoy XL, 2006 GMC Envoy, 2006 Chevrolet TrailBlazer, and 2006 Buick Rainier. However, it is still accessible from the selected car via links, so may be relevant.
This diagnostic procedure supports the following DTC:
DTC P0568 Cruise Control Set Switch Circuit