Vauxhall Vivaro C Owner's Manual page 204

202 Driving and operating
The counting of driving time alert is
reset if one of the following conditions
is met:
● The vehicle has been stationary
for more than 15 minutes with the
engine running.
● The ignition has been switched
off for a few minutes.
● The driver's seat belt has been
unfastened and the driver's door
is open.
Notice
If the vehicle speed drops below
40 mph, the system is paused. The
driving time is counted again once
the speed is above 40 mph.
Driver drowsiness detection
The system monitors the driver's level
of vigilance. A camera at the top of the
windscreen detects variations in
trajectory compared to the lane
markings. This system is particularly
suited to fast roads (speed higher
than 40 mph).
If the trajectory of the vehicle
suggests a certain level of
drowsiness or inattention by the
driver, the system triggers the first
level of alert. The driver is notified by
a message and an audible signal is
given.
After three first level alerts, the
system triggers a new alert with a
message, accompanied by a more
pronounced audible signal.
In certain driving conditions (poor
road surface or strong winds), the
system may give alerts independent
of the driver's level of vigilance.
The driver drowsiness detection is
reinitialised when the ignition has
been switched off for a few minutes or
the speed remains below 40 mph for
a few minutes.
System limitations
In the following situations, the system
may not operate properly or even not
operate at all:
● poor visibility caused by
inadequate lighting of the
roadway, falling snow, heavy
rain, dense fog etc.
● dazzle caused by headlamps of
oncoming vehicles, low sun,
reflections on damp roads,
leaving a tunnel, alternating
shade and light etc.
● windscreen area in front of the
camera covered by dirt, snow,
stickers etc.
● no lane markings detected or
multiple lane markings due to
roadworks
● close vehicles ahead
● winding roads or narrow roads