GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

  1. Turn the ignition switch to the RUN position.
  2. Momentarily press the sunroof switch to the REVERSE/CLOSE VENT position. Release the switch before the sunroof is fully open.

The sunroof moves to the fully open position. In order to abort the express open mode, press the sunroof switch once in any direction.

Power Sunroof Does Not Open

2

Press the sunroof switch to the FORWARD/OPEN VENT position. Release the switch before the sunroof is fully closed.

The sunroof moves toward the closed position. The sunroof stops when the sunroof switch is released.

Power Sunroof Does Not Open to Vent Position

3

Press and hold the sunroof switch to the FORWARD/OPEN VENT position.

The sunroof moves to the closed position and stops.

Power Sunroof Does Not Open to Vent Position

4

  1. Release the sunroof switch.
  2. Press the switch again in the FORWARD/OPEN VENT position.

The sunroof moves to the vent position.

Power Sunroof Does Not Open

5

Momentarily press the sunroof switch to the REVERSE/CLOSE VENT position. Release the switch before the sunroof is fully closed.

The sunroof moves to the closed position and stops.

Power Sunroof Does Not Open

6

  1. Close all vehicle doors.
  2. Turn the ignition switch to OFF.
  3. Operate the sunroof, power windows and radio.
  4. Wait 10 minutes, then attempt to operate the sunroof, power windows and radio.
  1. The sunroof, power windows and radio operate for up to 10 minutes after the ignition switch is turned to OFF. (Retained accessory power is active.)
  2. The vehicle disables the sunroof, power windows and radio after 10 minutes.

Refer to Retained Accessory Power (RAP) System Check

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