2018-Navigator-Owners-Manual

Hill Descent Control (If Equipped)

Note: You may observe noise from the ABS pump motor during hill descent control operation. This is a normal characteristic of the ABS and should be no reason for concern. Hill Descent Modes • At speeds between 2 mph (3 km/h) and 20 mph (32 km/h): Your vehicle maintains the speed you desire while in this mode. • At speeds between 20 mph (32 km/h) and 40 mph (64 km/h): Your vehicle does not maintain the speed you desire and you cannot set your descent speed. • At speeds above 40 mph (64 km/h): You need to switch this feature back on to use. Refer to the Information Display for additional hill descent control messages. See Information Messages (page 126).

Hill descent control requires a cooling down interval after a period of sustained use. The amount of time that the feature can remain active before cooling varies with conditions. The system provides a warning in the message center and a tone sounds when the system is about to disengage for cooling. At this time, manually apply the brakes as needed to maintain descent speed. USING HILL DESCENT CONTROL You can switch the hill descent control on and off through the information display. To increase descent speed, press the accelerator pedal until you reach the desired speed. To decrease descent speed, press the brake pedal until you reach the desired speed. Whether accelerating or decelerating, once you reach the desired descent speed, remove your feet from the pedals and hill descent control maintains the chosen vehicle speed.

PRINCIPLE OF OPERATION

WARNINGS Hill descent control cannot control descent in all surface conditions and circumstances, such as ice or extremely steep grades. Hill descent control is a driver assist system and cannot substitute for good judgment by the driver. Failure to do so may result in loss of vehicle control, crash or serious injury. Hill descent control does not provide hill hold at zero miles per hour (0 kilometers per hour). When stopped, you must apply the parking brake or place the vehicle in P (Park), or it may roll away. Hill descent control allows you to set and maintain vehicle speed while descending steep grades in various surface conditions. Hill descent control can maintain vehicle speeds on downhill grades between 2 mph (3 km/h) and 12 mph (20 km/h). Above 20 mph (32 km/h), the system remains armed, but you cannot use the system to set or maintain the descent speed.

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Navigator (TB9) Canada/United States of America, enUSA, Edition date: 201708, First Printing