Express Open

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

The express open will work only with the glass in between the full vent and partial open positions. To express open the power sunroof, turn the ignition ON, with engine OFF. Momentarily press (less than 1.5 seconds) the sunroof switch rearward once, this will apply the sunroof switch low reference to the sunroof switch open signal circuit (5 volt reference) input, pulling it to 0 volts momentarily. The momentary 0 volts input to the sunroof module indicates an express open request. The sunroof glass will slide automatically (express open) above the roof, allowing the wind deflector to raise upward. The sunroof glass will stop (soft stop) at the full open position based on the inputs from the limit switches. As the sunroof glass expresses open so will the sunshade. To stop the sunroof glass in a desired position other than to the express open position, as the sunroof is expressing open, press the sunroof switch again (in either direction) to stop the movement.