GM Service Manual Online
For 1990-2009 cars only

The Real Time Damping/AutoRide™ system consists of the following components: A control module, four dampers, and four position sensors. In addition, 15 series vehicles equipped with Real Time Damping/AutoRide™ have an integrated Automatic Level Control (ALC) system. The ALC consists of the rear automatic level control dampers and the automatic level control air compressor

The Real Time Damping/AutoRide™ system is fully automatic and uses a computer controller to continuously monitor vehicle speed, wheel to body position, lift/dive and steering position of the vehicle. The controller then sends signals to each damper to independently adjust the damping level.

The Real Time Damping/AutoRide™ system also interacts with the Tow/Haul switch. When engaged the Tow/Haul mode will provide additional control of the dampers.

The ALC is fully automatic and will provide a level ride under a variety of passenger and loading conditions. The ALC system utilizes inputs from the Real Time Damping/AutoRide™ position sensors to the ALC air compressor to raise or lower the rear dampers and maintain the proper vehicle height.