Volvo XC90 Owner's Manual page 169

Function
Function overview
Visual warning signal, collision risk
Radar sensor
Camera
Collision Warning
The radar sensor and the camera work
together to detect a pedestrian, stationary
vehicles and vehicles that are moving in the
same direction as your vehicle. If there is a risk
of collision with a vehicle or a pedestrian, the
driver is alerted by a flashing red warning light
and an audible warning signal. Collision warn-
ing is active at speeds above 3 mph (4 km/h).
Collision warning with Full Auto-brake and Pedestrian Detection*
Brake Support
If the risk of collision continues to increase after
the collision warning has been given, Brake
Support is activated. Brake Support prepares
the brake system to react quickly, and the
brakes are applied slightly. This may be expe-
rienced as a light tug.
If the brakes are applied quickly, full braking
effect will be provided. Brake Support also
increases brake force if the system determines
that the driver has not applied adequate pres-
sure on the brake pedal.
Auto-brake
If a collision is imminent and the driver has not
applied the brakes or begun to steer around the
vehicle or pedestrian, the auto-brake function
is activated without the driver pressing the
brake pedal. Full brake force is applied to help
reduce the vehicle's speed when the collision
occurs or limited brake force is applied if this
is sufficient to avoid the collision.
NOTE
The auto-brake and brake support functions
are always on and cannot be turned off.
I n f o r m a t i o n P r o v i d e d b y :
04 Comfort and driving pleasure
Operation
Settings are made by pressing MY CAR on the
center console control panel and using the
menus displayed.
On and off
To switch Collision Warning on or off, press MY
CAR on the center console control panel and
go to Settings
warning On/Off. If Collision Warning is on,
the system will perform a self-test each time
the engine is started by briefly illuminating the
warning light. See page 129 for more informa-
tion about the menu system.
When the engine is switched on, the Collision
Warning setting that was being used when it
was switched off will be the default setting.
Activating/deactivating warning signals
The collision warning system's visual signals
are activated automatically when the engine is
started if the collision warning system is
switched on.
The audible warning signal can be activated/
deactivated by pressing MY CAR on the center
console control panel and going to
Car settings
Warning sound
*
Option/accessory, for more information, see Introduction.
Car settings Collision
Settings
Collision warning
On/Off.
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