Exhaust-at-Speed
Danger: Never attempt to test the exhaust-at-speed feature or use it in the course of normal driving. This feature is intended for use only in emergency situations where the tractor and/or trailer service brakes are not available while driving. Testing can only be safely performed on a test track with a trained driver. Failure to follow this warning could lead to vehicle damage, property damage, injury, or death. Drivers and maintenance personnel must read and understand the contents of the Intellipark Owner’s Manual before operating the vehicle.
In an emergency, the Intellipark system can be used to initiate a controlled stop of the vehicle if service brakes are not available. Pull and hold the bottom of the yellow parking brake control to slow and stop the vehicle. If the vehicle is towing a trailer, pull and hold the bottom of the red trailer air control switch at the same time to apply the spring brakes to the trailer. When the switches are released the parking and trailer spring brakes automatically release.
This feature has a short delay after the driver pulls the controls while the vehicle is in motion. The delay time increases with vehicle speed; at low speeds no delay is initiated. This function is intended to fulfill emergency braking operation while reducing the likelihood of unintended activations at normal on-road speeds.