Principle of Operation

All window operation request signals are digital inputs to the GM.

• Comfort Closing of the windows from the driver's or passenger's lock cylinder when held in the locking position.
• When the ignition key is in accessory or "ON" press the switch to open or close the windows. Window operation is possible with the ignition switched off until a front door is opened or 16 minutes (maximum) has elapsed.
• Power protection against a jammed or seized motor is monitored by the hall sensors in the window motors. The GM will interrupt the power to a jammed motor. Rear windows utilize current sensing for shut off.
• The one-touch function is activated by momentarily pressing the window switch to the second detent. Window travel will cease when the full up or down position has been reached. One-touch can be canceled by pressing the window switch a second time. Anti-trap is provided by the GM monitoring the door glass movement from the hall sensor. If the door glass encounters resistance in the closing direction (>100N.m) the motor will stop and reverse direction for 50 mm of travel.