Volvo 2013 XC70 - Manual (Page 171)

04 Driver support
Driver Alert System*
04
* Option/accessory, for more information, see Introduction. 169
Lane Departure Warning (LDW)–
introduction
This function is designed to help reduce the
risk of accidents in situations where the vehicle
leaves its lane and there is a risk of driving off
the road or into the opposite lane. LDW con-
sists of a camera that monitors the lane’s side
marker lines. The driver is alerted by an audible
signal if the vehicle crosses a side marker line
or the road’s center dividing line.
Operation and function
LDW can be switched on or off by pressing the
button on the center console. A light in the but-
ton illuminates when the function is on.
The trip computer display shows Lane Depart
Warn Standby <40 mph ( Lane Depart Warn
Standby <65 km/h ) when the function is in
standby mode.
When LDW is in standby mode, the function is
activated automatically after the camera has
monitored the road’s side marker lines and the
vehicle’s speed exceeds 40 mph (65 km/h).
Lane Depart Warn Unavailable will be dis-
played.
If the vehicle’s speed falls below 37 mph
(60 km/h), LDW will return to standby mode
and Driver Alert Standby <40 mph will be
displayed.
If the camera can no longer monitor the road’s
side marker lines,
Lane Depart Warn
Unavailable will be displayed.
If the vehicle unexpectedly crosses the lane’s
left or right side marker lines, the driver will be
alerted by an audible signal.
No warning signal will be given in the follow-
ing situations:
• The turn signal is being used
• The driver’s foot is on the brake pedal 1
• The throttle pedal is pressed quickly 1
• If the steering wheel is moved quickly 1
• In sharp turns that cause the vehicle’s
body to sway
See page 162 for information on the camera’s
limitations.
WARNING
The driver will only be warned once for each
time the wheels cross a marker line. No
alarm will be given if a marker line is
between the wheels.
1 When Increased sensitivity has been selected, a warning will be issued if a side marker line is crossed in this situation.