Volvo S 90, Owner'S Manual

Page: 330 / 548

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction. 328
Road Sign Information (RSI)
*
limitations
The RSI function may be limited in certain situa-
tions.
RSI may have difficulty reading signs that are:
•
Faded
•
Located in a curve
•
Twisted or damaged
•
Positioned high above the road
•
Obstructed (by bushes, etc.)
•
Partially covered by snow, ice, etc.
•
If the digital maps used by the Sensus
Navigation system
*
are not up-to-date or do
not contain speed information
7
.
The camera used by RSI has certain limitations.
See the article "Camera limitations" for additional
information.
NOTE
RSI may perceive certain types of bicycle
holders (with wiring attached to the trailer
electrical socket) as a trailer, which may result
in faulty speed limit information to the driver.
Related information
•
Road Sign Information (RSI)
*
(p. 326)
•
Road Sign Information (RSI)
*
operation
(p. 326)
•
Camera limitations (p. 303)
Driver Alert Control (DAC)
DAC is intended to alert the driver if his/her driv-
ing becomes erratic due to e.g., distraction or
fatigue.
DAC is designed to help detect a slowly chang-
ing driving pattern. It is primarily intended to be
used on main roads and is not meant for use in
city traffic.
The function activates initially when the vehicle's
speed first exceeds 40 mph (65 km/h) and
remains active as long the speed remains above
approx. 38 mph (60 km/h)
A camera monitors the traffic lane's side marker
lines and compares the direction of the road with
the driver’s movements of the steering wheel.
7 Speed information is not available in all markets.