GM Service Manual Online
For 1990-2009 cars only

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

Refer to the system description and operation in order to familiarize yourself with the system functions:  Heated/Cooled Seats Description and Operation.

Visual/Physical Inspection

    • Inspect for aftermarket devices which could affect the operation of the heated and cooled seats. Refer to Checking Aftermarket Accessories.
    • Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.

Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections.

Symptom List

Refer to a symptom diagnostic procedure in order to diagnose the symptom:  Heated/Cooled Seats Inoperative.