GM Service Manual Online
For 1990-2009 cars only

Power Sunroof System Check

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

  1. Turn the ignition to ON
  2. Momentarily press the Power Sunroof Slide Switch to the EXPRESS OPEN position.

Sunroof slides to the fully open position. To abort express mode, press Sunroof switch to any position.

Sunroof does not slide open.

2

Press and hold the Power Sunroof Slide Switch to the CLOSE position.

Sunroof slides to the fully closed position.

Sunroof does not slide closed.

3

Press and hold the Power Sunroof Vent Switch to the OPEN position.

Sunroof rear moves to the fully opened position.

Sunroof does not open to the vent position.

4

Press and hold the Power Sunroof Vent Switch to the CLOSE position.

Sunroof rear moves to the fully closed position.

Sunroof will not close from the open vent position.

5

Press and hold the Power Sunroof Slide Switch to the OPEN position.

Sunroof slides to the fully open position.

Sunroof does not slide open.

Note: After the system check has been performed, return the sunroof to the flush CLOSE position to continue diagnostics.

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