Volvo XC90 Owner's Manual page 283

Stability system
The Roll Stability Control (RSC
helps reduce the risk of a rollover in the event
of e.g. a sudden evasive maneuver or if the
vehicle begins to skid.
The system monitors the lateral angle at which
the vehicle is leaning and registers any
changes. Using this information, the system
calculates the likelihood of a rollover. If there is
an imminent risk of a rollover, Electronic Sta-
bility Control is activated, engine torque is
reduced and brakes are applied to one or more
of the wheels until the vehicle has regained
stability.
WARNING
The vehicle's stability systems help
improve vehicle safety but do not replace
the driver's responsibility for operating the
vehicle in a safe manner. Speed and driving
style should always be adapted to the cur-
rent road, traffic and weather conditions.
Posted speed limits should always be
respected.
Related information
Electronic Stability Control (p. 277)
•
10 Roll Stability Control
11 Distance Alert
Distance Alert*
10 ) system
The Distance Alert function can help the
driver become aware if the time interval to
the vehicle in front is too short. The vehicle
must be equipped with a head-up display* in
order to display Distance Alert.
Symbol for Distance Alert on the windshield with
head-up display
In vehicles equipped with a head-up display, a
symbol will be displayed on the windshield as
long as the time interval to the vehicle ahead
is shorter than the set time interval. However,
the Show Driver Support
activated under Settings in the vehicle's menu
system.
Distance Alert is active at speeds
above 30 km/h (20 mph) and only reacts for
11
function must be
DRIVER SUPPORT
vehicles ahead moving in the same direction
as your vehicle. No distance information is
provided for oncoming, slow-moving or sta-
tionary vehicles.
Distance Alert warning light on the windshield.
Even if the vehicle is not equipped with head-
up display, a warning light will be displayed on
the windshield and glow steadily if the time
interval to the vehicle ahead is shorter than the
set time interval.
* Option/accessory.
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