Before Starting The Engine With; Brake Functions; Foot Brake - Volvo V90 Cross country 2020 Owner's Manual

Before starting the engine with the
alcohol lock*
The alcohol lock is activated automatically
and is then ready for use when the car is
opened.
To bear in mind
In order to obtain correct function and as
accurate a measurement result as possible:
Avoid eating or drinking approx. 5 minutes
•
before the breath test.
Avoid excess windscreen washing - the
•
alcohol in the washer fluid may result in an
incorrect measurement result.
NOTE
After a completed period of driving, the
engine can be restarted within 30 minutes
without a new breath test.
Related information
Bypass of the alcohol lock* (p. 420)
•
Alcohol lock* (p. 419)
•
Starting the car (p. 416)
•
Ignition positions (p. 418)
•

Brake functions

The car's brakes are used to reduce the
speed or prevent the car from rolling.
In addition to the foot brake and parking
brake, the car is equipped with several auto-
matic brake assist functions. These can assist
the driver by not needing to keep his/her foot
on the brake pedal when at a traffic light,
when starting on an uphill gradient or when
driving on a downhill gradient.
Depending on the car's equipment, the follow-
ing auto braking functions are available:
Automatic brake when stationary (Auto
•
Hold)
Hill start assist (Hill Start Assist)
•
Auto braking after a collision
•
City Safety
•
Hill descent control (Hill Descent Control)
•
Related information
Foot brake (p. 421)
•
Parking brake (p. 424)
•
Automatic braking when stationary
•
(p. 427)
Auto braking after a collision (p. 429)
•
Help when starting on a hill (p. 428)
•
City Safety™ (p. 346)
•
Hill descent control (p. 452)
•
STARTING AND DRIVING

Foot brake

The foot brake is part of the brake system.
The car is equipped with two brake circuits. If
a brake circuit is damaged, the brake pedal
will engage deeper. Higher pressure on the
pedal will therefore be needed to produce the
normal braking effect.
The driver's brake pedal pressure is assisted
by a brake servo.
WARNING
The brake servo only works when the
engine is running.
If the foot brake is used when the engine is
switched off then the pedal will feel stiff and a
higher pedal pressure must be used to brake
the car.
In very hilly terrain or when driving with a
heavy load the brakes should be relieved by
using engine braking in manual gearshift
mode. Engine braking is most efficiently used
if the same gear is used downhill as up. Use
drive mode Off Road for increased engine
braking while driving on steep downhill gradi-
ents at low speeds.
Anti-lock braking system
The car has anti-lock brakes (ABS
prevents the wheels from locking while brak-
* Option/accessory.
2 ), which
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421