Engine Brake
The engine brake is enabled by a dash-mounted ON/OFF Switch with a separate intensity switch to select (HI/MED/LO or, in some cases HI/LO) braking power.
Caution: LOSS OF VEHICLE CONTROL
To avoid injury from loss of vehicle control, do not activate the Engine Brake system under the following conditions:
- On wet or slippery pavement, unless the vehicle is equipped with ABS (anti-lock braking system) and you have had prior experience driving under these conditions.
- When driving without a trailer (bobtailing) or pulling an empty trailer.
- If the tractor drive wheels begin to lock or there is fishtail motion after the Engine Brake is activated, deactivate the brake system immediately if this occurs.
The engine brake will only operate when the accelerator pedal is fully released. Disengaging the clutch will prevent the engine brake from operating.
The engine brake will supply braking power even when in Cruise Control. The Motor Control Module will control the amount of engine braking with respect to the Cruise Control set speed. The maximum amount of braking (HI/MED/LO) is selected with the dash or steering wheel switches.