Drive Mode Description and Operation: Notes

The ride control system is a customer configurable control that allows the vehicle operator to tailor the vehicle operation and driveabiity parameters based on driving conditions. The ride control is controlled by the vehicle operator through the Ride Control Switch. The Ride Control Switch is a momentary rotary knob with two internal switches and up to four LED indicators. Rotating the knob left or right will change to the next ride control and the corresponding ride control indicator on the switch will illuminate.

The Ride Control Switch is an input to the Engine Control Module. When the knob is rotated, the Engine Control Module will broadcast a message to all modules indicating the requested ride control. Control modules that are involved in changing their operation based on differing ride controls will then change their operating values. The Body Control Module will illuminate the appropriate ride control indicator on the Ride Control Switch.

The components of the ride control are:

• Ride Control Switch
• Engine Control Module
• Body Control Module

Other control modules or components that may respond to the commanded ride control are:

• Electronic Brake Control Module
• Power Steering Control Module
• Rear Differential Clutch Control Module
• Transmission Control Module