DRIVER SUPPORT
344
Rear Collision Warning
The Rear Collision Warning (RCW) function can
help the driver to avoid being hit by a vehicle
approaching from behind.
RCW is activated automatically each time the
engine is started.
The RCW can warn the driver in a vehicle
approaching from behind that a collision is immi-
nent by rapidly flashing the direction indicators.
If, at a speed below 30 km/h (20 mph), the RCW
function detects that the car is in danger of being
hit from behind, the seatbelt tensioners may ten-
sion the front seatbelts and activate the Whiplash
Protection System safety system.
Immediately before a collision from behind, RCW
may also activate the foot brake in order to
reduce the forward acceleration of the car during
the collision. However, the foot brake is only acti-
vated if the car is stationary. The foot brake relea-
ses immediately if the accelerator pedal is
depressed.
Related information
•
Limitations of Rear Collision Warning
(p. 344)
•
Whiplash Protection System (p. 43)
Limitations of Rear Collision
Warning
In certain cases the RCW may have difficulty
helping the driver in the event of a collision risk.
This can be, for example, if:
•
the vehicle approaching from behind is
detected too late
•
the vehicle approaching from behind
changes lane at the last moment
•
the vehicle approaching from behind has a
speed exceeding 80 km/h (50 mph)
•
a trailer, bicycle rack or similar is connected
to the car's electrical system - the RCW
function is then deactivated automatically.
In certain markets, RCW does
not
give a
warning with the direction indicators due to
local traffic regulations - in such cases, this
part of the function is deactivated.
The warning with direction indicators for Rear
Collision Warning is deactivated if the warn-
ing distance for collision warning in the City
Safety function is set at the lowest level
"
Late
".
The seat belt pre-tensioning and braking
functions are, however, still active.
Related information
•
Summary of Contents for S90 TWIN ENGINE
Page 1: ...S90 T W I N E N G I N E OWNER S MANUAL ...
Page 2: ......
Page 17: ...15 ALPHABETICAL INDEX Alphabetical Index 645 ...
Page 18: ......
Page 19: ...OWNER INFORMATION ...
Page 28: ......
Page 29: ...YOUR VOLVO ...
Page 43: ...SAFETY ...
Page 76: ......
Page 77: ...DISPLAYS AND VOICE CONTROL ...
Page 146: ......
Page 147: ...LIGHTING ...
Page 161: ...WINDOWS GLASS AND MIRRORS ...
Page 177: ...SEATS AND STEERING WHEEL ...
Page 191: ...CLIMATE ...
Page 223: ...KEY LOCKS AND ALARM ...
Page 243: ...KEY LOCKS AND ALARM 241 Country Area Type approval Oman Serbia ...
Page 246: ... KEY LOCKS AND ALARM 244 Country Area Type approval Oman Serbia ...
Page 266: ......
Page 267: ...DRIVER SUPPORT ...
Page 403: ...HYBRID INFORMATION ...
Page 424: ......
Page 425: ...STARTING AND DRIVING ...
Page 484: ......
Page 485: ...SOUND MEDIA AND INTERNET ...
Page 539: ...WHEELS AND TYRES ...
Page 565: ...LOADING STORAGE AND PASSENGER COM PARTMENT ...
Page 577: ...MAINTENANCE AND SERVICE ...
Page 629: ...SPECIFICATIONS ...
Page 661: ......
Page 662: ...TP 25059 English Int AT 1746 MY18 Copyright 2000 2017 Volvo Car Corporation ...