Get Driving -> Adaptive Cruise Control Guide for Aston Martin Dbx SUV 2020

Adaptive Cruise Control (ACC) with Speed

Limiter

High Speed Height Adjustment

High Speed Stage One

Warning: Only use ACC or the variable speed limiter if

road and traffic conditions are appropriate for maintaining a

steady speed for a prolonged period. If you do not, the

vehicle may cause an accident or collision resulting in death

or serious injury.

Standard ride height for Sport and Sport+ modes.

If the vehicle is driven above 160 km/h (100 mph) for more than

10 seconds whilst at standard ride height, the suspension will

lower by 15 mm. The suspension will raise when vehicle speed

drops below 80 km/h (50 mph) for 20 seconds, or immediately if

the speed drops below 50 km/h (30 mph).

Warning: Both ACC and the variable speed limiter are

aids and cannot take into account road, weather or traffic

conditions. You are responsible for vehicle speed, braking,

controlling the distance to any vehicle(s) in front and for

staying in the correct lane.

High Speed Stage Two

If the vehicle is driven above 200 km/h (125 mph) for more than

5 seconds, the suspension will lower by a further 5 mm. The

suspension will raise when vehicle speed drops below 130 km/h

(80 mph) for 20 seconds, or immediately if the speed drops

below 50 km/h (30 mph).

The ACC system should not be used when:

• road and traffic conditions do not allow you to maintain a

constant speed, e.g. in heavy traffic or on winding roads.

• driving on smooth or slippery roads. Braking or accelerating

can cause the drive wheels to lose traction and the vehicle

could then skid.

• visibility is poor, such as fog, heavy rain or snow.

Driving 5.11

Selecting ACC or Variable Speed Limiter

Operation

ACC can be used to maintain a selected vehicle speed without

having to use the accelerator and maintains a set distance

between your vehicle and the vehicle in front of you.

The variable speed limiter brakes automatically so that you do

not exceed the set speed. This feature is an aid only and cannot

take into account road, weather or traffic conditions. You are

responsible for vehicle speed, as well braking in good time and

for staying in the lane.

Both ACC and variable speed limiter only operate at speeds

above 20 km/h (13 mph).

[1] ACC/VARIABLE SPEED LIMITER SELECT: Press switch

between Adaptive Cruise Control (ACC) and variable speed

limiter function.

[2] SPEED SET ROCKER SWITCH: Push up to increase or down

to decrease the set speed for the ACC or variable speed limiter.

Press the rocker switch to resume the set speed.

[3] CAN: Press to cancel the set speed.

[4] INCREASE DISTANCE: Increases the set distance between

the vehicle in front and your vehicle.

[5] DECREASE DISTANCE: Decreases the set distance between

the vehicle in front and your vehicle.

5.12 Driving

Setting A Speed

Setting a Distance in the ACC

Lightly push the speed selector switch (2) up to increase speed,

or down to decrease speed in 1 km/h (1 mph) increments. A hard

press in either direction will increase in 10 km/h (5mph)

increments. Pressing the switch in either direction will set a new

vehicle speed in the cruise control or new vehicle speed limit.

Warning: ACC does not compensate traffic, road or

weather conditions. The driver is responsible for vehicle

speed and braking in emergency situations. Do not use ACC

in conditions that do not permit a constant speed such as

heavy traffic, winding roads or slippery roads due to weather

conditions.

ACC will automatically disengage when the brake pedal is

pressed or when the vehicle speed falls below 20 km/h (13 mph).

The ACC system will maintain a set distance from the vehicle in

front. If the vehicle begins to brake, your vehicle will also slow

down to match, and increase speed to match up to the speed set

in the cruise control. The distance between the two vehicles can

be set with the distance controls (4) and (5).

The variable speed limiter is not deactivated when the brake

pedal is pressed.

Resuming the Set Speed

Warning: Set speed should only be resumed if the driver

is aware of the set speed and intends to return to it.

The ACC system may not be able to detect narrow vehicles

such as motorcycles or vehicles driving on a different line.

Detection of obstacles can also be affected by dirty or obscured

sensors.

ACC will not resume at speeds below 20 km/h (13 mph).

Press the speed selector switch (2) to resume the set ACC speed

or variable speed limit.

If the vehicle is accelerated above the set speed, then the set ACC

speed will be resumed when the accelerator pedal is released.

If the ACC is deactivated, or the brake pedal is pressed, ACC will

disengage but the set speed memory will be kept. Press the speed

selector switch again and the vehicle will return to the set speed.

Driving 5.13

Hill Descent Control (HDC)

Deactivating ACC or Variable Speed Limiter

Warning: Hill Descent Control is an aid only and does not

replace the need for driver awareness. It is the driver's

responsibility to be aware of their surroundings. Always

make sure that there is a suitable distance to the side of your

vehicle for other road users and obstacles.

Press the CAN button (3) to deactivate ACC or variable speed

limiter.

The ACC and variable speed limiter set speeds will also be

cleared when the ignition is set to OFF.

ACC will automatically deactivate when:

Warning: If there is a difference in speed between the set

speed and actual speed when HDC is activated on a slippery

road surface, it is possible the wheels can lose traction. This

can increase the risk of the vehicle skidding and having an

accident. Be aware of the road surface conditions before

activating the HDC system.

• The brake pedal is pressed.

• The park brake is applied.

• Vehicle speed drops below 20 km/h (13 mph).

• Neutral, Park or Reverse gear positions are selected.

• The traction control system is activated.

• The variable speed limiter system is activated.

• A fault occurs in the ACC system. The system will not operate

until the fault is cleared.

Active Cruise Control and Active Brake Assist are disabled

when HDC is active.

HDC is intended to be used with All-Season tires (Refer to ’All

Season Tires’, page 11.18).

Hill Descent Control (HDC) uses the ABS system to control the

speed of the vehicle on downhill roads and terrain. The braking

effect used by the HDC system increase as the downhill gradient

becomes steeper. HDC will only operate with the transmission in

D (Drive), R (Reverse) and only in GT, Terrain and Terrain+

modes.

5.14 Driving

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Driving -> Adaptive Cruise Control for Your Aston Martin Dbx SUV 2020

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