GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

  1. Place the ignition in the RUN position.
  2. Depress the heated mirror pushbutton on the heater and A/C controller.

The heated mirror pushbutton LED will light and both mirrors will be warm to the touch.

If both mirrors are warm, but the heated mirror pushbutton LED does not light, Go to Control Assembly Replacement

    • Go to Heated Mirrors Inoperative
    • Go to Heated Mirrors Inoperative

2

Place the ignition switch in the OFF position.

The heated mirror pushbutton LED will extinguish and both mirrors will become cooler.

Go to Heated Mirrors Always On

* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.