GM Service Manual Online
For 1990-2009 cars only

The vehicle has the MagneRide control system. MagneRide constantly checks speed, wheel position, lift/dive and steering of the vehicle. The damping force for each shock absorber and adjustment level is chosen for the best ride and handling.

MagneRide also works with the tow/haul switch that, when engaged, will provide more firmness from the shock absorbers. This added control gives better ride and handling when carrying heavy loads or towing a trailer. See Tow/Haul Mode Light in your owner's manual for more information.