Engaging Creep Mode with a Detroit Transmission
Note: Creep mode is a feature available with Detroit and Eaton automatic transmissions.
To activate creep mode and the on/off screen, see an authorized Western Star service facility.
The creep mode function allows the vehicle to maintain a constant speed at engine idle without the driver holding the throttle pedal position. This mode is useful for very low-speed maneuvering and applications where steady vehicle speed is required. The vehicle speed is determined by the selected gear ratio operating at governed low engine idle speed. Any available gear may be selected, though the transmission will downshift or exit creep mode to prevent stalling if the engine lugs due to load conditions.
Make sure creep mode is on under the Transmission menu. See Fig..
Fig. 1, eCoast and Creep Mode Settings, ICUC
To activate creep mode for the first time within the current driving cycle, press the accelerator pedal to launch the vehicle, thereby modulating the clutch and allowing it to slip.
Once the vehicle is stopped via the service brakes, the vehicle will begin to creep again, without the accelerator pedal actuation, as soon as the service brakes are released.
To begin using creep mode (once active) from a parked position, shift from neutral to either drive or reverse, release the service brakes, and briefly depress the accelerator pedal. The vehicle’s urge to move can then be felt.
Important: When slowing down from higher speeds in drive or reverse, remember that creep mode will be in effect at lower speeds. Use the service brakes to stop the vehicle.