October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Visual/Physical Inspection

WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

Inspect for aftermarket devices which could affect the operation of the systems. Refer to Checking Aftermarket Accessories in Wiring Systems.
Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.