Symptoms - Cruise Control: Notes

WARNING: This page is about a different car, the 2003 GMC Safari and 2003 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.

Important: The following steps must be completed before using the symptom tables.

Perform the Diagnostic System Check before using the symptom table in order to verify that all of the following are true:

There are no DTCs set.
The module(s) can communicate via the serial data link.
Review the system operation in order to familiarize yourself with the system functions. Refer to CRUISE CONTROL DESCRIPTION AND OPERATION .