Volvo XC90 T8 TwinEngine Plug-In Hybrid, Руководство пользователя

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STARTING AND DRIVING
342
Braking effect after a collision
In certain types of collisions, the vehicle's brakes
are applied to help prevent or mitigate a secon-
dary collision.
Maintaining control of the vehicle after a collision
may be difficult. To help avoid or mitigate the
effect of a secondary collision, the brakes are
applied automatically to help bring the vehicle to
a stop.
The brake lights and hazard warning flashers will
be activated and the flashers will remain on after
the vehicle has come to a standstill. The parking
brake will then be applied automatically.
In a situation where stopping the vehicle may not
be desirable, the driver can override this system
by pressing the accelerator pedal.
This feature can only function if the brake system
is intact after the collision.
Related information
•
Brake functions (p. 340)
•
Airbag system (p. 87)
•
Rear Collision Warning (RCW) (p. 284)
Emergency brake lights
The emergency brake lights activate in the event
of hard braking/rapid deceleration at most nor-
mal driving speeds or if the ABS system is acti-
vated. This function causes an additional taillight
on each side of the vehicle to illuminate to help
alert vehicles traveling behind.
Once the emergency brake lights have been acti-
vated, if the driver releases the brake pedal, the
brake lights will return to their normal function.
Related information
•
Brakes (p. 338)
•
Hazard warning flashers (p. 144)
•
Brake lights (p. 143)
Hill Descent Control (HDC)
HDC is a type of low-speed automatic engine
brake and makes it possible to increase or
decrease the vehicle's speed on steep downhill
gradients using only the accelerator pedal, with-
out applying the brakes. HDC is integrated into
the
Off Road
drive mode.
HDC is particularly useful when driving down
steep hills with rough surfaces, and where the
road may have slippery patches.
WARNING
HDC does not function in all situations, and is
a supplementary braking aid. The driver has
full responsibility for driving in a safe manner.
Function
HDC allows the vehicle to roll forward or in
reverse at very low speed with enhanced engine
braking. However, speed can be adjusted with
the accelerator pedal. When the accelerator
pedal is released, the vehicle will return to very
low speed.
The driver can use the brakes to slow or stop the
vehicle at any time.
HDC is activated along with Low Speed Control
(LSC), which together make driving on slippery
surfaces at low speeds easier.
When HDC and LSC are activated, this changes
the response from the accelerator pedal and
engine.