Ram Trucks 2015 Chassis Cab Commercial - Owner Manual - Manual (Page 48)

Window LOCKOUT Switch (4–Door Models Only)
The window LOCKOUT switch on the driver’s door
allows you to disable the window control on the rear
passenger doors. To disable the window controls on the
rear passenger doors, push the window LOCK button
into the latched or down position. To enable the window
controls, push the window LOCK button again and
return the switch to the released or up position.
Window Lockout Switch
46 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE