A steering column assembly (18) of the type for controlling one or more
steerable wheels in a motor vehicle includes a steering wheel (14)
interface secured to the free end of a steering column (20). The steering
column assembly (18) includes powered telescope adjust and tilt adjust
features which a driver (16) uses to adjust the position of the steering
wheel (14) for maximum comfort. One or more condition sensors (48)
monitor numerous parameters about the vehicle. When an emergency
condition is detected, such as the seat belt warning, a door that is
ajar, various engine conditions, or erratic driving activity, a haptic
controller (50) rapidly vibrates the steering wheel (14) through the
telescoping and tilt adjusting motors (32, 40) as a means of alerting the
driver (16) to the emergency condition. These warnings can be given
priority so that a first warning is communicated by steering wheel (14)
vibrations in one direction, and a second warning is communicated by
vibrations in both the first direction and a second direction
simultaneously. In addition, a third warning can be given emphasis by
increasing the power of the vibration to a resonance mode to cause an
audible warning.