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Operation
Controls and display
Resume previous settings.
Off/On/Standby mode
Decrease/increase time interval
Put in active mode and set a speed (each additional press increases/decreasesspeed by 1 mph (approximately 2 km/h))
Set speed (shown in green when active,
shown in white when in standby mode)
Time interval
ACC active ( green symbol) or in standby
mode ( white symbol)
Related information
•Toggling between ACC and CC (standard Cruise Control) (p. 171)
• Cruise control (CC) – introduction (p. 169) •
Adaptive Cruise Control – troubleshooting(p. 185)
• Adaptive Cruise Control – symbols andmessages (p. 183)
• Adaptive Cruise Control – setting timeinterval (p. 177)
• Adaptive Cruise Control – setting speed(p. 176)
• Radar sensor (p. 181)
• Adaptive Cruise Control (ACC) – QueueAssist (p. 179)
• Adaptive Cruise Control – passinganother vehicle (p. 179)
• Adaptive Cruise Control – limitations(p. 181)
• Adaptive Cruise Control – function(p. 173)
• Adaptive Cruise Control – engaging(p. 175)
• Adaptive Cruise Control – deactivating(p. 177)
Adaptive Cruise Control – function
Function
Function overview 1
Warning light, braking by driver required
Controls in steering wheel
Radar sensor in front grille
Adaptive Cruise Control consists of: • A cruise control system to maintain a set speed
• A system to maintain a set distance to thevehicle ahead, which is expressed as atime interval. For example, you canchoose to remain approximately 2 sec-onds behind the vehicle ahead. Theactual distance required to maintain a2-second interval will vary according thespeed of the vehicles.
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WARNING
Adaptive Cruise Control only warns of vehicles detected by the radar sensor, seeAdaptive Cruise Control – limitations(p. 181). In some cases there may be nowarning or the warning may be delayed.The driver should always apply the brakeswhen necessary.
Steep inclines and/or heavy loadsACC is primarily intended for use on fairly level roads. The system may have difficultymaintaining the correct distance to a vehicleahead on steep inclines, if the vehicle is car-rying a heavy load or is towing a trailer. Inthese situations, the driver should always beprepared to apply the brakes if necessary.
Related information
•Adaptive Cruise Control – introduction (p. 172)
Adaptive Cruise Control – engaging
Putting ACC in standby modeBefore ACC can be used to regulate speed and/or the distance to a vehicle ahead, itmust first be put in standby mode. To do so:
Controls and display
Off/On/Standby mode
• Press
(2).
> The same symbol (7) appears (in white) in
the instrument panel to indicate that ACC is in standby mode.
NOTE
The driver's door must be closed and the driver's seat belt must be fastened beforeACC can be put in active mode. If the driv-er's seat belt is taken off or if the driver'sdoor is opened, ACC will return to standbymode.
Related information
• Adaptive Cruise Control – introduction (p. 172)
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Adaptive Cruise Control – setting speed
Setting a speedOnce ACC has been put in standby mode:
Controls and display
Put in active mode and set a speed (each additional press increases/decreasesspeed by 1 mph (approximately 2 km/h))
• Press
or (4).
> The set speed, for example 60 mph (5), will be magnified for several seconds and the frame around the speed will changecolors from white to green to indicate
that this speed has been stored (set).
When this symbol has changed col-ors from white to green , ACC is in
active mode and the vehicle will
maintain the set speed.
This symbol indicates that you are approaching a vehi-cle ahead. ACC will switch from main- taining a set speed to main-
taining a set distance from
that vehicle.
When this happens, a speed range will be indicated on
the speedometer: The higher speed (the cur-
rently set speed (5)) will be marked in green.
The lower speed in the range is the speed of
the vehicle ahead.
Changing the set speed
• After a speed has been set, it can be increased or decreased by briefly press- ing the
or buttons. Each time one
of these buttons is pressed, the vehicle's speed changes by 5 mph or 5 km/h. If thespeed is increased by pressing the accel-erator pedal, the vehicle's speed whenthe button is pressed will be set.
• Press and hold one of these buttons toincrease/decrease the speed in 1-mph or1-km/h increments. Release the buttonwhen you have reached the desiredspeed.
NOTE
•If one of the Adaptive Cruise Control buttons is pressed for more thanapproximately one minute, ACC will bedeactivated. The engine must then beswitched off and restarted to resetACC.
• In some situations Adaptive CruiseControl cannot be put in active mode.
Cruise control Unavailable is shown
in the display, see Adaptive Cruise Control – symbols and messages(p. 183).
Related information
• Adaptive Cruise Control – introduction (p. 172)
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Adaptive Cruise Control – setting time interval
Setting a time interval
Controls and display
Decrease/increase time interval
The set time interval to vehicles ahead can be increased by pressing
and decreased by
pressing
. The current time interval is
shown briefly in the display following adjust- ment. Different time intervals canbe selected and are shown in the instrument panel
2
as 1–5
horizontal bars. The greater the number of bars, thelonger the time interval. Onebar represents a time interval
of approximately 1 second; 5 bars is approxi-mately 3 seconds.
To set/change a time interval:
• Press the
/ buttons (3).
At low speeds, when the distance to the vehi- cle ahead is short, ACC increases the timeinterval slightly. In order to follow the vehicleahead as smoothly as possible, ACC allowsthe time interval to vary considerably in cer-tain situations.
WARNING
• Only use a time interval that is suitable in current traffic conditions.
• A short time interval gives the driverlimited reaction time if an unexpectedsituation occurs in traffic.
Related information
•
Adaptive Cruise Control – introduction (p. 172)
Adaptive Cruise Control – deactivating
Standby mode (temporary deactivation)To temporarily deactivate ACC (put it in standby mode):
Controls and display
Resume previous settings.
Off/On/Standby mode
• Press
(2).
This symbol and the marking for the set speed with change colors from green to
white. The previously set speed and time interval are resumed by pressing
(1).
2 The same symbol appears if Distance Alert (see Distance Alert – introduction (p. 186)) is activated
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WARNING
The vehicle may accelerate quickly after
has been pressed if its current speed is
considerably lower than the set speed.
Standby mode due to action by the driver
ACC is temporarily deactivated and put in standby mode:
• if the brakes are applied
• if the gear selector is moved to
N
• if the driver drives faster than the set speed for more than
1 minute.
In this happens, the driver will have to regu- late the vehicle's speed.
NOTE
If the accelerator pedal is only depressed for a short time, such as when passinganother vehicle, ACC is deactivated tem-porarily and is reactivated when the pedalis released.
Automatic standby modeACC is linked to other systems such as the stability system. If this system is not function-ing properly, ACC will switch off automati-cally. In the event of automatic deactivation, an audible signal will sound and the message
Cruise control Cancelled is shown in the
instrument panel. The driver must then inter- vene and adapt the vehicle's speed to thesurrounding traffic and regulate the distanceto the vehicle ahead. An automatic switch to standby mode may be caused if:
• engine speed (rpm) is too high/low
• The driver's door is opened
• The driver unbuckles his/her seat belt
• the vehicle's speed goes below 18 mph (30 km/h)
• the wheels lose traction
• brake temperature is high
• the radar sensor is obstructed by, forexample, wet snow or rain.
Resuming the set speedIf ACC is in standby mode, it can be reactiva- ted by pressing the
button on the steering
wheel keypad. The vehicle will return to the most recently set speed.
WARNING
The vehicle may accelerate quickly after
has been pressed if its current speed is
considerably lower than the set speed.
Turning ACC off completely
Controls and display
Resume previous settings.
Off/On/Standby mode
• From standby mode, press (2)
once.
• From active mode, press (2)
twice.
The set speed and time interval are then cleared from the system's memory and can- not be resumed by pressing (1)
.
Related information
• Adaptive Cruise Control – introduction (p. 172)
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Adaptive Cruise Control – symbols and messages
Symbols and messages in the displayA text message can be erased by pressing briefly on the OK button on the turn signal
lever.
SymbolMessageDescription
Green symbolA speed has been set.
White symbolACC is in standby mode but no speed has been set.
-Standard cruise control has been selected manually.
-Set ESC to Normal to enable CruiseACC cannot be put in active mode until the stability system is switched normal operating mode, see Stability system – introduction (p. 162) for more information.
-Cruise control Cancel- ledACC has been automatically switched off. The driver has to regulate the vehicle’s speed/distance to the vehicle ahead.
-Cruise control Unavail- ableACC cannot be put in active mode. This may be due to: • high brake temperature
• the radar sensor is obstructed (by heavy rain, snow, etc.)
Radar blocked See manualACC has been temporarily disconnected because the radar is obstructed in some way and cannot detect other vehicles. In this situation, the driver can switch to standard cruise control, see Toggling between ACC and CC (standard Cruise Control) (p. 171) See Adaptive Cruise Control – limitations (p. 181) for information on the radar sensor’s limitations.
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SymbolMessageDescription
-Cruise control Service requiredACC is not functioning. Contact a trained and qualified Volvo service technician.
-Press Brake To hold +
an audible signalThe vehicle is at a standstill and ACC will release the brakes before the parking brake engages to keep the vehicle stopped but a problem with the parking brake means that the vehicle may begin to roll. The driver will have to apply the brakes. The message will remain in the display and the audible signal will continue until the driver applies the brakes or presses the accelerator pedal.
-Below 30 km/h Only followingThis is displayed if you try to activate ACC at speeds below approx. 18 mph (30 km/h) without a vehicle ahead within range (approx. 100 ft/30 meters).
Related information
• Adaptive Cruise Control – introduction (p. 172)
07 Driver support
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Adaptive Cruise Control – troubleshooting
If the message Radar blocked See manualis displayed, this means that the radar signalsfrom the sensor have been obstructed and that a vehicle ahead cannot be detected. This, in turn, means that the functions of the ACC, Distance Alert, and Collision Warning
System with Auto-brake and PedestrianDetection will not function. The table lists possible causes for this mes- sage being displayed, and suitable actions.
CauseAction
The surface of the radar in the grille is dirty or obstructed in some way.Clean the radar surface, or remove the object causing the obstruction.
Heavy rain or snow is interfering with the radar signals.No action possible. Heavy precipitation may affect the function of the radar.
Swirling water or snow from the surface of the road may interfere with the radar signals.No action possible. A very wet or snow-covered road surface may affect the function of the radar.
The surface of the radar is clean but the message remains in the display.Wait a short time. It may take several minutes for the radar to detect that it is no longer obstructed.
Related information
•
Adaptive Cruise Control – introduction (p. 172)