To Express Open to Vent

WARNING: This page is about a different car, the 2002 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

To open the power sunroof to the vent position from the closed position, momentarily press the sunroof switch rearward. This will apply the sunroof switch low reference to the sunroof open signal circuit (5 volt reference) input, pulling the reference voltage down to 0 volts. As long as the sunroof module only see a single input request from the sunroof switch (open signal circuit), the sunroof module will automatically (express open) open the sunroof glass to the full vent position, raising the rear of the glass upward. The sunroof glass will stop (soft stop) at the full vent position based on the inputs from the limit switches. The sunshade will have to be manually slid open. To stop the sunroof glass in a desired vent position other than full vent, toggle the sunroof switch to either direction as the sunroof glass is raising upward.