Rear Window Lockout Feature
The rear window lockout switch is built into the Driver Door Switch Assembly
(DDSA). The lockout function is used to prevent both rear
windows from being operated from their locally mounted switches When the lockout switch is pressed momentarily, the LED indicator is illuminated, and the DDSA receives the switch signal. The DDSA sends the switch status, via class 2 serial data message, to the Left Rear Door Module
(LRDM) and the Right Rear Door Module
(RRDM). The LRDM and RRDM then prohibit the rear windows from being operated from the rear door window switches. When the lockout function has been activated, both rear door windows can still be operated from the driver door by using the window switches built into the DDSA.