Sunroof Override Position Calibration

The sliding glass panel motor stalls when the glass reaches the fully vented position and the electronic motor module learns that position (hard stop), then counts the number of motor rotation to know where the fully closed and fully open positions of the glass are located. The following procedure causes a previously calibrated and properly operating electronic motor module to relearn the fully vented motor stall position. This routine should be performed after the sunroof position calibration procedure has been performed.

1. Be certain the electrical system voltage is at or above 12.5 volts.
2. Be certain that ignition switch is in the ON position.
3. Be certain the power sunshade is open at least beyond the back of the sliding glass panel opening.
4. Depress and hold the VENT push button of the sunroof switch until the sliding glass panel is in the fully vented position or until the motor will not drive the glass any further towards the fully vented position.
5. Open the drivers side front door.
6. Turn the ignition to the OFF position.
7. Within 2 seconds, turn the ignition back to the ON position.
8. Within 2 seconds, depress and hold the vent push button on the sunroof switch for about ten seconds. At the end of ten seconds, the motor will try to drive the sliding glass panel to the fully vented position. Once the motor stall is detected the electronic module will write that stall position to memory as the new glass position.
9. Verify sliding glass panel motor operation by cycling the glass to fully opened, fully closed, fully vented, then fully closed again.