GM Service Manual Online
For 1990-2009 cars only

Power/Heated Mirrors System Check

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

  1. Turn ON the ignition switch.
  2. Select the LH mirror.
  3. Operate the LH mirror UP, DOWN, LEFT and RIGHT using the LH mirror switch.

The LH mirror will move as commanded.

Power Mirrors Inoperative - Left Side

2

  1. Select the RH mirror.
  2. Operate the RH mirror UP, DOWN, LEFT and RIGHT using the LH mirror switch.

The RH mirror will move as commanded.

Power Mirrors Inoperative - Right Side

3

  1. Turn ON the igntion switch, engine running.
  2. Turn ON the rear window defogger.
  3. The RH and LH heated mirror feature will activate.

The RH and LH mirrors both heat.

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