1993 Cadillac DeVille Owner's Manual - Page 104

Window Lock When the switch is in the "On" position, an amber indicatorlight will illuminate. Only the driver's window control switches will operate thepower windows. This feature is useful when you're transporting small children and you don't want them using the power windows. ~ When your vehicle is in the Retained Accessory Power(RAP) mode, the window lock function will not lock the windows. HORN To sound the horn, justpress the centerof the steeringwheel. TILT WHEEL A tilt steering wheel allows youto adjust the steeringwheel before you drive. You can also raise it to thehighest level to give your legs more room when you exit and enter the vehicle.