Volvo XC90 2019 Owner's Manual page 315

Subfunctions for City Safety
City Safety 14 can help to prevent a collision or
reduce the collision speed. The function con-
sists of several subfunctions.
Ability to reduce speed
If the speed difference between the driver's
car and the obstacle is greater than the follow-
ing specified speeds, the City Safety auto-
brake function cannot prevent a collision but it
can mitigate the consequences of a collision.
Vehicles
For a vehicle in front, City Safety can reduce
the speed by up to 60 km/h (37 mph).
Cyclists
For a cyclist, City Safety can reduce the speed
by up to 50 km/h (30 mph).
Pedestrians
For a pedestrian, City Safety can reduce speed
by up to 45 km/h (28 mph).
Large animals
In the event of a risk of a collision with a large
animal, City Safety can reduce the car's speed
by up to 15 km/h (9 mph).
The brake function for large animals is primar-
ily intended to reduce the force of the impact
at higher speeds and is most effective at
speeds above 70 km/h (43 mph) but less
effective at lower speed.
14 The function is not available in all markets.
The steps of City Safety
City Safety carries out three steps in the fol-
lowing order:
1. Collision warning
2. Brake support
3. Auto Brake
1 - Collision warning
The driver is first warned of a potentially immi-
nent collision.
In cars equipped with a head up display*, the
warning is shown on the windscreen by a
flashing symbol.
Symbol for collision warning on the windscreen
DRIVER SUPPORT
NOTE
Strong sunlight, reflections, extreme light
contrasts, the use of sunglasses, or if the
driver is not looking straight ahead may
make the visual warning signal in the wind-
screen difficult to recognise.
City Safety can detect pedestrians, cyclists or
vehicles that are stationary or moving in the
same direction as the car and are ahead. City
Safety can also detect pedestrians, cyclists or
large animals that are crossing the road in
front of the car.
In the event of a risk of collision with a pedes-
trian, larger animal, cyclist or vehicle, the
driver is alerted by means of a visual, acoustic
and brake pulse warning. There is no brake
pulse warning at lower speeds, sudden driver
braking or acceleration. The brake pulse fre-
quency varies according to the car's speed.
2 - Brake support
If the risk of collision has increased further
after the collision warning then the brake sup-
port is activated.
Brake support reinforces the driver's braking
action if the system considers that the braking
is not sufficient to avoid a collision.
* Option/accessory.
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