2017 VOLVO XC90 light

DRIVER SUPPORT
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* Option/accessory.267
Distance Alert *
Distance Alert is a function that alerts the driver if the time interval to the vehicle ahead is too short.
Distance Alert is active at speeds above approxi- mately 20 mph (30 km/h) and only reacts to avehicle ahead that is driving in the same direc-tion. No information is provided for vehicles driv-ing toward you, moving very slowly, or at a stand-still.
Warning light (generic illustration)
A warning light in the windshield glows steadily if your vehicle is closer to the one ahead than theset time interval.
NOTE
Strong sunlight, reflections, extreme light con- trasts, the use of sunglasses, or if the driver isnot looking straight ahead may make the vis-ual warning signal in the windshield difficult tosee.
NOTE
Distance Alert only monitors distance to the vehicle ahead while Adaptive Cruise Control isin standby mode or off.
WARNING
Distance Alert only indicates the distance to the vehicle ahead. It does not affect thespeed of your vehicle.
Head-up-display *
Distance Alert symbol in the windshield (generic illustra- tion)
In vehicle is equipped with the head-up display *,
the symbol in the windshield will only appear if the distance to the vehicle ahead is shorter than the preset value. However, the
Show Driver
Support function has to be activated in the Set-
tings menu. See the article "Head-up display" for additional information.
NOTE
Strong sunlight, reflections, extreme light con- trasts, the use of sunglasses, or if the driver isnot looking straight ahead may make the vis-ual warning signal in the windshield difficult tosee.

DRIVER SUPPORT
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* Option/accessory.269
Distance Alert * limitations
Distance Alert uses the same radar sensor as Adaptive Cruise Control * and has several limita-
tions.
WARNING
• The radar sensor has a limited field of vision. In some situations it may detect avehicle later than expected or not detectother vehicles at all.
• The radar sensor cannot cover all drivingsituations and traffic, weather and roadconditions.
• The driver is responsible for maintaining asafe distance and speed and must inter-vene if the various driver support systemsdo not maintain a suitable speed or suita-ble distance to the vehicle ahead.
• Maintenance of radar sensor componentsmay only be performed by a trained andqualified Volvo technician.
• Strong sunlight, reflections from the roadsurface, strong lighting contrasts or usingsunglasses may make the warning light inthe windshield difficult to see.
WARNING
•
Poor weather or winding roads can affect the radar sensor's capacity to detect vehi-cles ahead.
• A vehicle's size (e.g., a motorcycle) canalso affect the radar sensor's capacity todetect another vehicle. This may result inthe warning light illuminating at a shorterdistance than the one that has been setor not illuminating at all.
• High speeds may also result in the warn-ing light illuminating at a shorter distancethan the one that has been set due tolimitations in the radar sensor's range.
For additional information, see also the article"Radar sensor limitations."
Related information
• Radar sensor limitations (p. 297)
• Distance Alert
* (p. 267)
Adaptive Cruise Control (ACC) *
ACC is an optional system designed to assist the driver by maintaining a set speed or a settime interval to the vehicle ahead.
ACC helps provide more relaxed driving on long trips on highways or other major roads in a rela-tively even flow of traffic.
The camera and radar sensor monitor the distance to the vehicle ahead (generic illustration - certain detailsmay vary from model to model)
The driver sets that desired speed and time inter- val to the vehicle ahead. When the camera andradar sensor detects a slower moving vehicleahead, your vehicle's speed is automaticallyadapted. When there are no longer slower mov-ing vehicles ahead, your vehicle will accelerate toresume the set speed. ACC is designed to follow a vehicle ahead in the same lane and maintain a time interval to that

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Controls
Function buttons and symbols (generic illustration)
Increases the set speed or puts ACC back into active mode (previous settings will beresumed)
Puts ACC in active mode and stores the cur- rent speed or puts ACC in standby mode
Reduces the set speed
Increases the time interval/distance to the vehicle ahead
Reduces the time interval/distance to the vehicle ahead
Target vehicle indicator: ACC has detected and is following a target vehicle using the settime interval
Distance/time indicator
Instrument panel
Speed indicators
Set speed
Speed of the vehicle ahead
The current speed of your vehicle
See the article "Adaptive cruise control symbols and messages" for examples of different combi-nations of symbols, depending on the traffic sit-uation.
Collision warning
Warning light in the windshield
Adaptive Cruise Control can exert brake force that is equivalent to approximately 40% of thevehicle's total braking capacity. In situations requiring more brake force than ACC can provide and if the driver does not applythe brakes, an audible signal from the City Safetysystem will sound and warning light will illuminatein the windshield to alert the driver to react.
NOTE
Strong sunlight, reflections, extreme light con- trasts, the use of sunglasses, or if the driver isnot looking straight ahead may make the vis-ual warning signal in the windshield difficult tosee.

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* Option/accessory.
272
WARNING
Adaptive Cruise Control only warns of vehicles detected by the radar sensor. In some casesthere may be no warning or the warning maybe delayed. The driver should always apply thebrakes when necessary.
Head-up-display *
A flashing light alerts the driver
A flashing icon will appear in the head-up display to alert the driver of a collision risk.
NOTE
Strong sunlight, reflections, extreme light con- trasts, the use of sunglasses, or if the driver isnot looking straight ahead may make the vis-ual warning signal in the windshield difficult tosee.
Related information
•Starting and activating Adaptive Cruise Control (ACC)
* (p. 272)
• Changing Adaptive Cruise Control (ACC) speed (p. 275)
• Setting an Adaptive Cruise Control timeinterval (p. 276)
• Changing target vehicles and automaticbraking with Adaptive Cruise Control (ACC)(p. 277)
• Switching between Cruise Control and Adaptive Cruise Control
* (p. 266)
• Passing Assistance with Adaptive Cruise Control or Pilot Assist (p. 277)
• Deactivating/resuming Adaptive CruiseControl (ACC) (p. 273)
• Adaptive Cruise Control (ACC) - trouble-shooting (p. 279)
• Adaptive Cruise Control (ACC) symbols andmessages (p. 281)
• Pilot Assist
* (p. 283)
• Distance Alert
* (p. 267)
• Head-up display (HUD)
* (p. 116)
• Radar sensor limitations (p. 297)
Starting and activating Adaptive Cruise Control (ACC)
*
ACC must first be put in active mode before it can be started in order to regulate speed or aset time interval to the vehicle ahead.
Starting ACC (putting it in standby
mode)
Function buttons and symbols
–Press ◀ (2) or ▶ (3) to scroll to the ACC
(
) function. The symbol (4) will be dis-
played in the instrument panel.
> The symbol indicates that ACC has been
started and is in standby mode . In
standby mode, the vehicle will not main-
tain a set speed or a time interval to the vehicle ahead.

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* Option/accessory.
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Setting an Adaptive Cruise Control time interval
ACC makes it possible to set various time inter- vals to the vehicle ahead.
Different time intervals to the vehicle ahead can be selectedand are shown in the instru-ment panel as 1–5 horizontalbars. The greater the number ofbars, the longer the time inter-val. One bar between the vehi-
cles represents a time interval of approximately1 second; 5 bars is approximately 3 seconds. The same symbol appears if Distance Alert is activated.
• If the symbol shows two vehicle's, ACC is actively following the vehicle ahead (a targetvehicle).
• If only one vehicle is displayed, ACC is
not
actively following another vehicle.
Changing a time interval
Controls for setting a time interval
Reduce the time interval
Increase the time interval
Distance/time indicator
–Press buttons (1) or (2) to reduce or increase the time interval.
> The distance/time indicator (3) shows the current time interval.
In order to follow the vehicle ahead as smoothly as possible, ACC allows the time interval to varyconsiderably in certain situations. At low speeds,when the distance to the vehicle ahead is short,ACC increases the time interval slightly. • If ACC does not seem to react when it is put in active mode, this may be because the set time interval to the vehicle ahead does notallow an increase in speed.
• The higher the speed, the greater the dis-tance to the vehicle ahead for a given timeinterval.
• Only use time intervals permitted by localtraffic regulations.
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
•
Adaptive Cruise Control (ACC)
* (p. 269)
• Starting and activating Adaptive Cruise Control (ACC)
* (p. 272)
• Deactivating/resuming Adaptive Cruise Control (ACC) (p. 273)
• Passing Assistance with Adaptive CruiseControl or Pilot Assist (p. 277)
• Adaptive Cruise Control (ACC) symbols andmessages (p. 281)
• Distance Alert
* (p. 267)

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WARNING
At speeds above 20 mph (30 km/h), if ACC
changes targets from a moving vehicle to a stationary one, the system will not react to the
stationary vehicle and will accelerate to the previously set speed. The driver must actively apply the brakes to slow/stop the vehicle.
Automatic standby mode when changing targets
ACC disengages and goes into standby mode if:
• your vehicle's speed goes below approx. 3 mph (5 km/h) and ACC cannot determineif the target object is a stationary vehicle orsome other type of object such as a speedbump, etc
• the vehicle's speed goes below approx.3 mph (5 km/h) and the vehicle aheadchanges lanes or turns so that ACC nolonger has a target vehicle to follow.
Auto-hold brake functionIn slow-moving, stop-and-go traffic or when stop-ped at a traffic light, driving will resume automati-cally if the vehicle is not stopped for more thanapprox. 3 seconds. If it takes more than3 seconds for the vehicle ahead to begin movingagain, ACC will go into standby mode and theauto-hold brake function will activate.
–The driver will then have to reactivate ACC in one of the following ways:
• Press the
button on the left-side
steering wheel keypad.
• Press the accelerator pedal.
> ACC will resume following the vehicle ahead (target vehicle) if it begins to move within approx. 6 seconds.
NOTE
ACC can keep the vehicle at a standstill for up to 5 minutes, after which the parking brakewill be set and ACC will go into standbymode. The parking brake has to be released before ACC can be reactivated.
Deactivation of the auto-hold brake function
In certain situations, auto-hold will be deactivated when the vehicle is at a standstill and ACC will gointo standby mode. This means that the brakes will be released and the vehicle can begin to roll. The driver must actively apply the brakes to keep the vehicle at a standstill. This can occur in the following situations: • the driver presses the brake pedal
• the parking brake is set •
the gear selector is moved to the
P, N or R
positions
• the driver puts ACC in standby mode.
Automatically setting the parking brakeIn certain situations, the parking brake is set automatically to help keep the vehicle at a stand-still. This occurs if ACC keeps the vehicle at a stand- still with the brakes and:
• the driver unbuckles the seat belt or opensthe door
• ACC has kept the vehicle at a standstill formore than approx. 5 minutes
• the brakes overheat
• the engine is turned off.
Related information
•
Adaptive Cruise Control (ACC)
* (p. 269)
• Auto-hold brake function (p. 356)
• Parking brake (p. 360)

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285
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
Warning light in the windshield
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.
NOTE
Strong sunlight, reflections, extreme light con- trasts, the use of sunglasses, or if the driver isnot looking straight ahead may make the vis-ual warning signal in the windshield difficult tosee.
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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* Option/accessory.
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Head-up-display *
A flashing symbol alerts the driver
If the vehicle is equipped with a head-up display, a flashing symbol in the windshield will alert thedriver.
NOTE
Strong sunlight, reflections, extreme light con- trasts, the use of sunglasses, or if the driver isnot looking straight ahead may make the vis-ual warning signal in the windshield difficult tosee.
Related information
•Starting and activating Pilot Assist (p. 286)
• Changing Pilot Assist speed (p. 288)
• Setting a Pilot Assist time interval (p. 289) •
Changing target vehicles and automatic braking with Pilot Assist (p. 292)
• Deactivating/resuming Pilot Assist (p. 290)
• Passing Assistance with Adaptive CruiseControl or Pilot Assist (p. 277)
• Pilot Assist limitations (p. 293)
• Pilot Assist symbols and messages (p. 295)
• Adaptive Cruise Control (ACC)
* (p. 269)
• Distance Alert
* (p. 267)
• Head-up display (HUD)
* (p. 116)
• Radar sensor limitations (p. 297)
• Camera limitations (p. 301)
Starting and activating Pilot Assist
Pilot Assist has to be started and then activated before it can provide steering assistance andregulate speed and the distance to the vehicleahead.
Function buttons and symbols