Symptoms - Lighting: Notes

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2009 GMC Savana Special, 2009 GMC Savana Camper Special, 2009 GMC Savana, 2009 Chevrolet RV Cutaway, and 2009 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: The following steps must be completed before doing the Symptom tables.

Perform the Diagnostic System Check - Vehicle .
- No DTCs are set.
- The control modules can communicate via the serial data link.
Review the system operation in order to familiarize yourself with the system functions. Refer to the following:
- Exterior Lighting Systems Description and Operation
- Interior Lighting Systems Description and Operation