HILL DESCENT CONTROL
Controlling vehicle speed when maneuvering down a steep hill can be a challenge. On the 2016 TITAN XD, the hill descent control system is available as standard equipment only for the PRO-4X grade models. This feature is designed to help control vehicle speed, allowing the driver to concentrate on steering.
Hill Descent Control:
- Can only be activated when the 4H or 4LO switch is engaged.
- Helps maintain vehicle speed when driving under 15 mph (24 km/h) on downhill grades that have approximatively 10% or steeper slope.
- Is useful when engine braking alone cannot control vehicle speed
- Applies the vehicle brakes to control vehicle speed, allowing the driver to concentrate on steering while reducing the burden of brake and accelerator operation.
Operating Conditions for Hill Descent Control:
- Vehicle speed below 15 mph (24 km/h).
- Driving on a grade of approximately 10% or steeper.
- 4H or 4LO activated.
- Transmission shift lever in a forward or reverse gear.
- Hill descent control switch turned ON.
- If the hill descent control indicator light is ON steadily, the system is ON and engaged, controlling vehicle speed.
- If the hill descent control indicator light is blinking, the system is ON, but not engaged, not controlling vehicle speed.
System Operation
- The brake lights illuminate while the hill descent control system applies the brakes to control vehicle speed.
- If the accelerator or brake pedal is depressed while the hill descent control system is engaged, the system will disengage (stop functioning temporarily). As soon as the accelerator or brake pedal is released, the hill descent control system re-engages and begins to function again as long as the operating conditions are met.
- The hill descent control indicator light blinks if the switch is ON and all operating conditions are not met or if the system becomes disengaged for any reason.
- To turn OFF the hill descent control system, push the switch to the OFF position.
Note:
- The vehicle speed must be kept below 15 mph (24 km/h) for hill descent control to be engaged and control vehicle speed.
- For the best results, when descending steep downhill grades, the hill descent control switch should be ON and the shift lever should be in M1 (1st) for engine braking.
- Sounds may be heard or slight vibrations may be felt through the brake pedal (similar to ABS operation) when the hill descent control functions. This is normal.
System Diagram
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