Windows and Glass: Description and Operation

Glass, Frames and Mechanisms

NOTE: The Smart Junction Box (SJB) may also be identified as the Generic Electronic Module (GEM).

Power Window System

The power window system operates under the control of the accessory relay. The SJB grounds the relay coil to provide power to the power window system when the ignition is in the RUN or ACC position.

Power Window Control

The power window system can be operated from the driver window control switch or from the window control switch located on the passenger door panel. The driver window control switch has 2 modes of operation for the driver power window, manual and auto. The passenger window operates in the manual mode only.

Manual mode moves the window downward until the switch is released. The driver power window will operate in the manual mode when the driver window control switch is pressed to the first detent position.

Auto mode provides the one-touch down feature for the driver front power window. The one-touch down function allows the driver front power window to be completely lowered when the driver window control switch is pressed to the second detent position and then released. One-touch down is controlled by the driver window control switch.

Quarter Glass

The quarter glass is standard on SuperCab vehicles. The fixed quarter glass is held in place using nuts and uses urethane adhesive for wind/water sealing.

Back Window Glass

The back window glass is standard plastic and glass laminate safety glass. The back window glass may be split with a sliding window or a one-piece window.

Windshield Glass

The windshield glass is standard plastic and glass laminate safety glass. The windshield glass is bonded to the window opening flange with urethane adhesive.

Front Door Glass

The front door glass is standard plastic and laminate safety glass. The front door glass is lowered and raised manually or with the optional power window controls.