PRINCIPLE OF OPERATION
WARNINGS
Hill descent control cannot controldescent in all surface conditions andcircumstances, such as ice orextremely steep grades. Hill descentcontrol is a driver assist system and cannotsubstitute for good judgment by the driver.Failure to do so may result in loss of vehiclecontrol, crash or serious injury.
Hill descent control does not providehill hold at zero miles per hour (0kilometers per hour). When stopped,the parking brake must be applied or thevehicle must be placed in P (Park) or itmay roll away.
Hill descent control allows the driver to setand maintain vehicle speed whiledescending steep grades in various surfaceconditions.
Hill descent control can maintain vehiclespeeds on downhill grades between 2 mph(3 km/h) and 12 mph (20 km/h). Above 20mph (32 km/h), the system remainsarmed, but descent speed cannot be setor maintained.
Hill descent control requires a coolingdown interval after a period of sustaineduse. The amount of time that the featurecan remain active before cooling varieswith conditions. The system will provide awarning in the message center and a chimewill sound when the system is about todisengage for cooling. At this time,manually apply the brakes as needed tomaintain descent speed.
USING HILL DESCENT
CONTROL
1.Press and release the hill descentbutton located on the center console.Switching on this feature will light thebutton and sound a tone.
2.Press the accelerator pedal to increasedescent speed until you have reachedthe desired speed.
3.Press the brake pedal to decreasedescent speed until you have reachedthe desired speed.
Note:Once you have reached the desireddescent speed, remove your feet from thepedals to maintain the chosen vehiclespeed.
See the Information Displays chapter ofyour Owner’s Manual for hill descentmode messages.
Disabling Hill Descent Control
To switch off the hill descent control, pressthe button located on the center consolea second time. The light will turn off andthe information display will indicate thatyou have switched this off.
8F150 (TF6)Terrain ResponseE168102
