Volvo 2016 XC 90 Twin Engine, Owner'S Manual

Page: 330 / 582

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction. 328
Driving lane assistance
The
Lane Departure Warning
(LDW) and
Lane
Keeping Aid
(LKA)
*
functions are designed to
help reduce the risk of accidents in situations
where the vehicle unintentionally leaves its lane
on highways or other major roads.
Driving lane assistance systems: LDW
or LKA
There are two versions of the driving lane assis-
tance system:
•
LDW (
Lane Departure Warning
): provides
an audible signal or vibrations in the steering
wheel.
•
LKA (
Lane Keeping Aid
): actively steers the
vehicle to help keep it in its traffic lane
and/or alerts the driver using an audible sig-
nal or through vibrations in the steering
wheel.
The driving lane assistance systems are active at
speeds from approx. 40 mph (65 km/h) up to the
vehicle's permitted top speed on roads with
clearly visible traffic lane marker lines.
On narrow roads, the systems may not function
and will go into standby mode. They will return to
active mode if the road becomes sufficiently
wide.
A camera monitors the road/traffic lane's marker lines
Both LDW and LKA provide vibrations in the steering
wheel
6
LKA attempts to steer the vehicle back into its lane
Depending on the version and settings used,
driving lane assistance functions in different
ways:
•
If the system is activated (either LDW or
LKA): if the driver does not react and the
vehicle is moving out of its traffic lane, an
audible signal and/or vibrations in the steer-
ing wheel will be provided.
•
If the system is activated (LKA only): when
the vehicle approaches a traffic lane marker
line, LKA will provide active steering assis-
tance to help steer it back into the lane.
6 The level of vibrations varies; the longer the vehicle is over a lane marker line, the greater the number of vibrations: