Ride Control Description and Operation

The drive mode system is a customer configurable control that allows the vehicle operator to tailor the vehicle operation and driveability parameters based on driving conditions. The drive mode is controlled by the vehicle operator through the Drive Mode Select Switch. The Drive Mode Select Switch is a momentary switch that enables or disables the selected drive mode. When a drive mode change is requested by the driver through the Drive Mode Select Switch, the K9 Body Control Module will broadcast a message to all modules indicating the requested drive mode. Control modules that are involved in changing their operation based on differing drive modes will then change their operating values.

The components of the drive mode select system are:

• S48E Multifunction Switch Center Console
• S70R Steering Wheel Control Switch-Right
• K20 Engine Control Module
• K9 Body Control Module

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

• K19 Suspension Control Module
• K20 Engine Control Module
• K43 Power Steering Control Module
• K71 Transmission Control Module