Tailgate Window

Electrically operated window controlled by a key operated switch in exterior locking handle, and by a switch on instrument panel. On 3-seat suburbans, an additional roof rail switch provided for passenger control of window. Optional "Child Guard" control for 3-seat surburbans consists of an up relay, a down relay, and a vacuum switch in one of the rear doors. Vacuum switch controls roof rail switch. When rear door is locked, vacuum switch is open, roof switch is not grounded, and is inoperative. However, window can be controlled from lock or instrument panel switches in the usual manner.