2008-2016 Volvo Xc70 SUV Driver support -> Adaptive cruise control* - overview User Manual
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Driver support -> Adaptive cruise control* - overview for Your Volvo Xc70 SUV Second Generation (2008-2016)

07 Driver support  
Related information  
Adaptive cruise control* - function  
It consists of a cruise control system and a  
coordinated spacing system.  
WARNING  
Adaptive cruise control* - function  
(p. 207)  
The driver must always be observant with  
regard to the traffic conditions and inter-  
vene when the adaptive cruise control is  
not maintaining a suitable speed or suita-  
ble distance.  
Adaptive cruise control* - overview  
(p. 209)  
Adaptive cruise control* - managing  
speed (p. 210)  
The adaptive cruise control cannot handle  
all traffic, weather and road conditions.  
Adaptive cruise control* - set time interval  
(p. 211)  
Read all the sections about the adaptive  
cruise control in the owner's manual in  
order to learn about its limitations, of  
which the driver should be aware before it  
is used.  
Adaptive cruise control* - temporary  
deactivation, and standby mode (p. 212)  
Adaptive cruise control* - overtaking  
another vehicle (p. 213)  
The driver always bears responsibility for  
maintaining the correct distance and  
speed, even when the adaptive cruise con-  
trol is being used.  
Adaptive cruise control* - deactivate  
(p. 213)  
Adaptive Cruise Control* - queue assis-  
tance (p. 213)  
Adaptive cruise control* - switch cruise  
control functionality (p. 215)  
IMPORTANT  
Maintenance of adaptive cruise control  
components must only be performed at a  
workshop - an authorised Volvo workshop  
is recommended.  
Radar sensor (p. 216)  
Radar sensor - limitations (p. 216)  
Adaptive cruise control* - fault tracing  
and action (p. 218)  
For a limited time after the service, the  
ACC function can have a somewhat lim-  
ited range. The system is calibrated whilst  
driving and full function returns automati-  
cally.  
Adaptive cruise control* - symbols and  
messages (p. 219)  
07  
Automatic gearbox  
Cars with automatic gearbox have enhanced  
functionality with the adaptive cruise control's  
Queue assistance (p. 213) function.  
}}  
207  
* Option/accessory, for more information, see Introduction.  
07 Driver support  
||  
The adaptive cruise control aims to follow the  
vehicle ahead in the same lane according to  
what the driver set for time interval (p. 211). If  
the radar sensor cannot see any vehicle in  
front then the car will instead maintain the  
speed set and stored by the driver. This also  
takes place if the speed of the vehicle in front  
exceeds the stored speed.  
Function overview  
WARNING  
Adaptive cruise control is not a collision  
avoidance system. The driver must inter-  
vene if the system does not detect a vehi-  
cle in front.  
The adaptive cruise control does not brake  
for humans or animals, and not for small  
vehicles such as bicycles and motorcy-  
cles. Nor for low trailers, oncoming, slow  
or stationary vehicles and objects.  
The adaptive cruise control aims to control  
the speed in a smooth way. In situations that  
demand sudden braking the driver must  
brake himself/herself. This applies with large  
differences in speed, or if the vehicle in front  
brakes heavily. Due to limitations in the radar  
sensor (p. 216) braking may come unexpect-  
edly or not at all.  
Do not use the adaptive cruise control, for  
example, in city traffic, in dense traffic, at  
junctions, on slippery surfaces, with a lot  
of water or slush on the road, in heavy  
rain/snow, in poor visibility, on winding  
roads or on slip roads.  
Function overview4.  
Warning lamp - braking by driver required  
Steering wheel keypad (p. 209)  
Radar sensor (p. 216)  
The adaptive cruise control can be activated  
to follow another vehicle at speeds from  
30 km/h5 (20 mph) up to 200 km/h (125 mph).  
If the speed falls below 30 km/h (20 mph) or if  
the engine speed becomes too low, the  
cruise control is set in standby mode (p. 212)  
at which automatic braking ceases - the  
driver must then take over himself/herself to  
maintain a safe distance to the vehicle in  
front.  
Distance to the vehicle ahead (p. 211) is  
measured primarily by a radar sensor  
(p. 216). The cruise control function regulates  
the speed with acceleration and braking. It is  
normal for the brakes to emit a low sound  
when they are being used by the adaptive  
cruise control.  
WARNING  
07  
The brake pedal moves when the adaptive  
cruise control brakes. Do not rest your foot  
beneath the brake pedal - it may then  
become trapped.  
4
NOTE: The illustration is schematic - details may differ depending on car model.  
Queue Assist (p. 213) (in cars with automatic gearbox) can operate in the range 0-200 km/h (0-125 mph).  
5
208  
07 Driver support  
Warning lamp - braking by driver  
required  
Adaptive cruise control has a braking  
capacity that is equivalent to approx. 40% of  
the car's braking capacity.  
Adaptive cruise control* - overview  
NOTE  
The warning lamp may be difficult to see in  
strong sunlight or when wearing sun-  
glasses.  
WARNING  
The adaptive cruise control only warns of  
vehicles which its radar unit has detected -  
hence a warning may not be given, or it  
may be given with a certain delay. Do not  
wait for a warning without braking when so  
required.  
Steep roads and/or heavy load  
Standby mode ceases and the stored  
speed is resumed.  
Bear in mind that the adaptive cruise control  
is primarily intended for use when driving on  
level road surfaces. It may have difficulty in  
keeping the correct distance from the vehicle  
ahead when driving on steep downhill slopes,  
with a heavy load or with a trailer - in which  
case, be extra attentive and ready to slow  
down.  
Cruise control - On/Off or Standby mode.  
Time interval - Increase/decrease.  
Activate and adjust the speed.  
(Not used)  
1. Collision warning system warning lamp and  
warning sound6.  
If the car needs to be braked more heavily  
than the adaptive cruise control capacity and  
the driver does not brake, then the warning  
lamp and warning sound from the Collision  
warning system (p. 231) are used in order to  
alert the driver that immediate intervention is  
required.  
Green marking at stored speed (WHITE =  
standby mode).  
Related information  
Adaptive cruise control - ACC* (p. 206)  
Time distance  
07  
Adaptive cruise control* - deactivate  
(p. 213)  
ACC is active at the GREEN symbol  
(WHITE = standby mode).  
Adaptive cruise control* - overtaking  
another vehicle (p. 213)  
6
NOTE: The illustration is schematic - details may vary depending on car model.  
}}  
209  
* Option/accessory, for more information, see Introduction.  

Related Topics

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