2017 VOLVO S90 instrument panel

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The
time interval to the vehi-
cle ahead will only be shown when two vehicles are dis-played.
A speed interval will also be indicated:
• The higher speed is the one set in ACC
• The lower one is the speed of the vehicle ahead (the target vehicle).
Related information
•
Adaptive Cruise Control (ACC)
* (p. 261)
• Setting an Adaptive Cruise Control timeinterval (p. 267)
• Deactivating/resuming Adaptive CruiseControl (ACC) (p. 265)
Deactivating/resuming Adaptive Cruise Control (ACC)
ACC can be put temporarily in standby mode and then reactivated.
Function buttons and symbols
To temporarily deactivate and put Adaptive Cruise Control in standby mode:
–Press the button (2).
> The
symbol in the instrument panel
will change colors from WHITE to GRAY and the set speed in the center of thespeedometer will change from BEIGE toGRAY.
WARNING
When ACC is in standby mode, the driver has to control the vehicle's speed and distance toa vehicle ahead. When ACC is in standby mode, the driver will be alerted if the distance to the vehicle aheadis too short by the Distance Alert function.See the article "Distance Alert" for additionalinformation.
Standby mode due to action by the driver
ACC is temporarily deactivated and put in standby mode if:
• the brakes are applied
• The gear selector is moved to
N
• the vehicle is driven faster than the setspeed for more than 1 minute.
In these cases, the driver will have to regulate thevehicle's speed. A temporary increase in speed, such as when passing another vehicle, does not affect the ACCset speed. The vehicle will return to the set speedwhen the accelerator pedal is released.

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Adaptive Cruise Control (ACC) symbols and messages A number of ACC symbols and/or messages may appear in the instrument panel or the head- up display*.
Several examples 2
are provided here.
This illustration 3
shows that ACC is set at a
speed of 68 mph (110/km/h) and that there is no vehicle ahead to follow.
This illustration 3
shows that ACC is set at a
speed of 68 mph (110/km/h) and is following another vehicle traveling at the same speed.
The following table lists several ACC-related symbols and messages.
Symbol Message Explanation
WHITE symbolACC is in active mode and maintaining the set speed.
GRAY symbol and UnavailableACC is in standby mode.
2
In the following illustrations, the optional RSI (Road Sign Information) function is indicating that the posted speed limit is 80 mph (130 km/h).
3 The illustration is generic. 110 km/h is approx. 68 mph.

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277
Function symbol
Distance and target vehicle symbol
Steering assistance symbol
Instrument panel
Speed indication (generic illustration)
Set speed
Speed of the vehicle ahead
Your vehicle's current speed.
See also the article "Pilot assist symbols and messages" for additional information.
Collision warning
Audible/visual warning signals
Audible warning signal
Visual warning signal
Monitoring distance with the camera and radar sensor
Pilot Assist can exert brake force that is equiva-lent to approximately 40% of the vehicle's totalbraking capacity. In situations requiring more brake force than Pilot Assist can provide and if the driver does notapply the brakes, an audible signal and warninglight will illuminate in the windshield to alert thedriver to react.
WARNING
Pilot Assist only provides warnings for vehi- cles that its radar sensor and camera havedetected. For this reason, a warning may begiven later than expected or not at all. Thedriver should never wait for a warning beforeapplying the brakes.

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• the lane is at the top of a hill, on an uneven road surface or over a bump.
• bad weather conditions (rain, snow, fog,slush, poor visibility, backlighting, etc).
The driver should also be aware that Pilot Assist has the following limitations: • High curbs, barriers and temporary obsta- cles (cones, barriers etc) may not bedetected or could be detected incorrectlyas side marker lines, which may create arisk of collision. The driver must ensure asafe distance to these obstacles.
• The camera or radar sensor may not beable to detect objects if there are pot-holes or if there are stationary objectspartially or completely blocking the road.
• Pilot Assist does not "see" pedestrians,animals, etc.
• Pilot Assist's steering capacity is limitedand may not always be able to help thedriver keep the vehicle in the lane.
Hands on the steering wheel
Pilot Assist only functions when the driver's hands are on the steering wheel
, which is con-
tinuously monitored by the system. If this is notthe case, the driver will be alerted by a text mes-sage in the instrument panel. If the driver's handsare not returned to the steering wheel, an audiblesignal will sound. If the driver does not return his/her hands to thesteering wheel after the audible signal, PilotAssist will go into standby mode and must be reactivated by pressing
.
Related information
•
Pilot Assist
* (p. 275)
• Changing Pilot Assist speed (p. 280)
• Setting a Pilot Assist time interval (p. 281)
• Changing target vehicles and automatic braking with Pilot Assist (p. 284)
• Deactivating/resuming Pilot Assist (p. 282)
• Passing Assistance with Adaptive CruiseControl or Pilot Assist (p. 268)
• Pilot Assist limitations (p. 285)
• Pilot Assist symbols and messages (p. 287)
Changing Pilot Assist speed
Different speeds can be set for Pilot Assist.
Function buttons and symbols
–Change a set speed by pressing the (1)
or — (3) buttons briefly or by pressing and
holding them:
• Press briefly
: changes speed in
+/– 5 mph (+/– 5 km/h) increments. Each press changes the vehicle's speedby +/– 5 mph (+/– 5 km/h).
• Press and hold
: changes the speed
+/– 1 mph (+/– 1 km/h) at a time.Release the button when the set speedindicator (4) has moved to the desiredspeed.
If speed is increased by pressing the accelerator pedal before the
button is pressed, the vehi-
cle's speed when the button is pressed will

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become the set speed assuming that the accel- erator pedal is still depressed when the button ispressed. A temporary increase in speed, such as when passing another vehicle, does not affect thespeed set for Pilot Assist. The vehicle will returnto the set speed when the accelerator pedal isreleased. Pilot Assist can follow another vehicle from a standstill up to a speed of approx. 125 mph(200 km/h). Always observe posted speed limits. The lowest speed that can be set/stored for Pilot Assist is 20 mph (30 km/h). However, PilotAssist can monitor and react to the speed of thevehicle ahead down to a standstill. The highest speed that can be set/stored is approx. 125 mph (200 km/h). Always observeposted speed limits.
Related information
•
Pilot Assist
* (p. 275)
• Starting and activating Pilot Assist (p. 278)
• Setting a Pilot Assist time interval (p. 281)
• Changing target vehicles and automaticbraking with Pilot Assist (p. 284)
• Deactivating/resuming Pilot Assist (p. 282)
• Passing Assistance with Adaptive CruiseControl or Pilot Assist (p. 268)
• Pilot Assist limitations (p. 285) •
Pilot Assist symbols and messages (p. 287)
Setting a Pilot Assist time interval
Different time intervals to the vehicle ahead can be selected and are shown in the instrumentpanel as 1–5 horizontal bars.
Changing the time intervalThe greater the number of bars, the longer the time interval.One bar between the vehiclesrepresents a time interval ofapproximately 1 second; 5 barsis approximately 3 seconds.
NOTE
When the graphic in the instrument panel shows a vehicle and a steering wheel, PilotAssist is following a vehicle ahead using theset time interval. If only a steering wheel is displayed, there is no vehicle ahead within a reasonable dis-tance.

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Time interval controls
Press to reduce the time interval to the vehi- cle ahead
Press to increase the time interval to the vehicle ahead
Distance indicator
In order to follow the vehicle ahead as smoothly as possible, Pilot Assist allows the time interval tovary considerably in certain situations. At lowspeeds, when the distance to the vehicle aheadis short, Pilot Assist increases the time intervalslightly.
• If Pilot Assist does not seem to react when itis put in active mode, this may be becausethe set time interval to the vehicle aheaddoes not allow an increase in speed.
• The higher the speed, the greater the dis-tance to the vehicle ahead for a given timeinterval.
WARNING
• Only use a time interval that is suitable in current traffic conditions.
• A short time interval gives the driver lim-ited reaction time if an unexpected situa-tion occurs in traffic.
Related information
•
Pilot Assist
* (p. 275)
• Starting and activating Pilot Assist (p. 278)
• Changing Pilot Assist speed (p. 280)
• Changing target vehicles and automaticbraking with Pilot Assist (p. 284)
• Deactivating/resuming Pilot Assist (p. 282)
• Passing Assistance with Adaptive CruiseControl or Pilot Assist (p. 268)
• Pilot Assist limitations (p. 285)
• Pilot Assist symbols and messages (p. 287)
Deactivating/resuming Pilot Assist Pilot Assist can be temporarily deactivated, put in standby mode and then reactivated.
Deactivating and putting Pilot Assist in standby mode
Function buttons and symbols (generic illustration)
–Press the button (2).
> Pilot Assist will go into standby mode (8). The symbol
in the instrument panel
will change colors from WHITE to GRAY and the set speed in the center of thespeedometer will change from BEIGE toGRAY.
or
–Press the ◀ button (3).
> Pilot Assist will be turned off and shift to Adaptive Cruise Control in active mode.

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Pilot Assist symbols and messages
A number of Pilot Assist symbols and/or mes- sages may appear in the instrument panel or the head-up display *.
Several examples 4
are provided here.
In this illustration, Pilot Assist is set at 65 mph (110 km/h) and there is no target vehicle ahead. In this example, Pilot Assist will not provide steer- ing assistance because it cannot detect the traf-fic lane's side marker lines.
In this illustration, Pilot Assist is set at 65 mph (110 km/h) and there is a target vehicle aheadthat is traveling at the same speed. In this example, Pilot Assist will not provide steer- ing assistance because it cannot detect the traf-fic lane's side marker lines.In this illustration, Pilot Assist is set at 65 mph (110 km/h) and there is a target vehicle aheadthat is traveling at the same speed. In this example, Pilot Assist also provides steer- ing assistance because it is able to detect thetraffic lane's side marker lines.
4 In the following illustrations, the optional RSI (Road Sign Information) function is indicating that the posted speed limit is 80 mph (130 km/h).

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Radar sensor limitations
The radar sensor used by several of the driver support systems has certain limitations, whichalso affect the systems using it.
Obstructions
The marked area must not be obstructed in any way. This area of the windshield should always be kept clean
The radar sensor is located at the upper, center section of the windshield along with the camera.
WARNING
Never place any objects, decals, electronic toll devices, window tinting films etc., on the wind-shield in front of or around the camera/radarsensor. This could reduce or block these com-ponents' functions, and could cause one ormore of the systems that utilize them to stopfunctioning. This can also result in certain functions being reduced or disabled, or they may respondincorrectly. If this symbol and the message
Windscreen Sensors blockedappear in the instrument panel, this indicates that the camera and/or radar
sensor cannot detect other vehicles ahead.
The following table shows some of the situations that can cause the message to be displayed andsuggested actions.
Cause Action
The area of the windshield in front of the camera/radar sensor is dirty or covered by ice or snow. Clean the windshield or remove the ice/ snow.
Thick fog or heavy rain/snow reduces the camera/radar sensor's range of visibility. No action. The driver should be extra alert in conditions of this type.
Water or snow on the surface of the road swirl up and block radar signals or the camera'sview. No action. The driver should be extra alert in conditions of thistype.
There is dirt between the inside of the windshield and the camera/radar sensor. Have the area of the windshield cleaned by a trained and quali- fied Volvo service technician.