brake sensor VOLVO XC60 2017 Owner´s Manual

DRIVER SUPPORT
204•
City Safety – symbols and messages (p. 208)
• City Safety – Laser sensor (p. 209)
City Safety – function
Function
Location of the laser sensor in the windshield 6
City Safety
™ monitors traffic ahead of you using
a laser sensor mounted in the upper section of the windshield. If a collision is imminent, City Safety ™ will automatically apply the brakes,
which may feel like hard braking. If the difference in speed between your vehicle and the vehicle ahead is more than approximately 9 mph (15 km/h), City Safety ™ alone cannot
prevent a collision from taking place. The driver must apply the brakes to help avoid a collision orreduce its effect. When the function activates and applies the brakes, a message will appear in the information display to indicate that the system is/has beenactive.
NOTE
•
When City Safety
™ applies the brakes,
the brake lights will illuminate.
• In cases where City Safety
™ has stopped
the vehicle, the system will then release the brakes. The driver must apply thebrakes to keep the vehicle at a standstill.
Related information
• City Safety – introduction (p. 203)
• City Safety – operation (p. 205)
• City Safety – limitations (p. 205)
• City Safety – troubleshooting (p. 206)
• City Safety – symbols and messages (p. 208)
• City Safety – Laser sensor (p. 209)
6
The illustration is generic; certain details may vary from model to model

DRIVER SUPPORT
208
City Safety – symbols and messages
Symbols and messages in the display
When City Safety™ automatically applies the
brakes, one or more of the symbols in the main instrument panel may illuminate and its associ- ated message will be displayed. A text message can be erased by pressing briefly on the
OK button on the turn signal lever.
SymbolMessageMeaning/action required
Auto braking by City SafetyCity Safety ™ is applying/has applied the brakes automatically.
Windscreen Sensors blockedThe laser sensor is temporarily not functioning due to an obstruction.
• Remove the obstruction and/or clean the windshield in front of the sensor(s).
For more information on the sensor

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.
212
Collision warning * – function
Function overview
Audio-visual warning signals, collision risk
Radar sensor
Camera
Collision WarningThe radar sensor and the camera work together to detect a pedestrian, a cyclist, stationary vehi-cles and vehicles that are moving in the samedirection as your vehicle. If there is a risk of colli-sion with a vehicle, a cyclist or a pedestrian, thedriver is alerted by a flashing red warning lightand an audible warning signal. The system isactive at speeds above 3 mph (4 km/h).
Brake SupportIf the risk of collision continues to increase afterthe collision warning has been given, Brake Sup-port is activated. Brake Support prepares thebrake system to react quickly, and the brakes areapplied slightly. This may be experienced as alight tug. If the brakes are applied quickly, full braking effect will be provided. Brake Support alsoincreases brake force if the system determinesthat the driver has not applied adequate pressureon the brake pedal.
Auto-brakeIf a collision is imminent and the driver has notapplied the brakes or begun to steer around thevehicle, pedestrian or a cyclist, the auto-brakefunction is activated without the driver pressingthe brake pedal. Full brake force is applied tohelp reduce the vehicle

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.217
WARNING
•In certain situations, the system cannot provide warnings or warnings may bedelayed if traffic conditions or other exter-nal factors make it impossible for theradar sensor or camera to detect apedestrian, a cyclist or a vehicle ahead.
• Warnings may not be provided if the dis-tance to the vehicle ahead is short, or ifmovements of the steering wheel/brakepedal are great, such as during activedriving.
• The sensor system has a limited range forpedestrians/cyclists and provides warn-ings and braking effect most effectively atspeeds up to 30 mph (50 km/h). For sta-tionary or slow-moving vehicles, the sys-tem functions best if your vehicle

DRIVER SUPPORT
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219
Collision warning – troubleshooting
Fault tracing and actionsIf the message Windscreen Sensors blockedis displayed, this means that the camera isobscured and cannot detect pedestrians, cyclists, vehicles or road marker lines in front of the vehi-cle. This, in turn, means that Pedestrian and Cyclist Detection with Full Auto Brake, Driver Alert Con-trol, Lane Departure Warning or Lane KeepingAid will not have full functionality. The table lists possible causes for this message being displayed, and suitable actions.
CauseAction
The surface of the windshield in front of the camera is dirty or covered with ice or snow.Clean or clear the section of the windshield in front of the camera.
Fog, heavy rain or snow is interfering with the function of the camera.No action possible. Heavy precipitation may affect the function of the cam- era.
The surface of the windshield is clean but the message remains in the display.Wait a short time. It may take several minutes for the camera to register vis- ibility.
The surface between the inside of the windshield and the camera is dirty.Contact an authorized Volvo retailer or service technician to have this sur- face cleaned.

DRIVER SUPPORT
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* Option/accessory, for more information, see Introduction.235
Front park assist
The distance monitored in front of the vehicle is approximately 2.5 ft (0.8 m). The audible signalcomes from the audio system's front speakers. It may not be possible to combine auxiliary head- lights and front park assist since these lightscould trigger the system's sensors.
NOTE
Front park assist is deactivated when the parking brake is applied and or when the gear selector is in the P position.
Related information
• Park assist – introduction (p. 233)
• Park assist – limitations (p. 236)
• Park assist – operation (p. 235)
• Park assist – troubleshooting (p. 237) •
Rear Park Assist Camera (PAC) – function (p. 238)
Park assist – operation
Function
Park assist and CTA
* button
The system is activated automatically when the vehicle is started. The indicator light in the buttonin the center console illuminates when the sys-tem is on. • The front park assist system is active from the time the engine is started until the vehi-cle exceeds a speed of approximately 6 mph(10 km/h). It is also active when the vehicleis backing up.
• Rear park assist is active when the engine isrunning and reverse gear has been selected.

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DRIVER SUPPORT
236
Activating/deactivating
The system is activated automatically when the vehicle is started.
–Press the Park assist button on the center console to temporarily deactivate the sys-tem(s).
> The indicator light in the button will go outwhen the system has been deactivated.
Park assist will be automatically reactivated the next time the engine is started, or if the button ispressed (the indicator light in the button will illu-minate).
NOTE
Park assist is disengaged automatically when the parking brake is applied.
Related information
• Park assist – introduction (p. 233)
• Park assist – limitations (p. 236)
• Park assist – function (p. 233)
• Park assist – troubleshooting (p. 237)
• Rear Park Assist Camera (PAC) – function (p. 238)
Park assist – limitations
Cleaning the sensorsThe sensors must be cleaned regularly to ensure that they work properly. Clean them with waterand a suitable car washing detergent.
G031402
Location of the front sensors
Location of the rear sensors
Ice and snow covering the sensors may cause incorrect warning signals.
NOTE
If the sensors are obstructed by e.g., dirt, snow, or ice, this could result in false warningsignals from the park assist system or thesystem may not function at all.
Related information
•Park assist – introduction (p. 233)
• Park assist – function (p. 233)
• Park assist – operation (p. 235)
• Park assist – troubleshooting (p. 237)
• Rear Park Assist Camera (PAC) – function (p. 238)

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STARTING AND DRIVING
278nents, altering emission system components or location or removing components, and/orrepeated use of leaded fuel.
NOTE
Unleaded fuel is required for vehicles with three-way catalytic converters.
Heated oxygen sensorsThe heated oxygen sensors monitor the oxygen content of the exhaust gases. Readings are fedinto a control module that continuously monitorsengine functions and controls fuel injection. Theratio of fuel to air into the engine is continuouslyadjusted for efficient combustion to help reduceharmful emissions.
Related information
•
Information displays – warning symbols(p. 75)
• Engine and cooling system (p. 271)
Economical driving
Better driving economy may be obtained by thinking ahead, avoiding rapid starts and stopsand adjusting the speed of your vehicle to imme-diate traffic conditions.
Economical driving conserves natural
resources
Observe the following rules: • Bring the engine to normal operating tem- perature as soon as possible by driving witha light foot on the accelerator pedal for thefirst few minutes of operation. A cold engineuses more fuel and is subject to increasedwear.
• Whenever possible, avoid using the vehiclefor driving short distances. This does notallow the engine to reach normal operatingtemperature.
• Drive carefully and avoid rapid accelerationand hard braking.
• Use the transmission's Drive (
D) position as
often as possible and avoid using kick-down.
• Using the transmission's Sport mode mayincrease fuel consumption somewhat. Use the transmission's Drive (
D) position as often
as possible. For additional information about Sport mode, see Transmission – Geartronic(p. 254).
• Do not exceed posted speed limits. •
Avoid carrying unnecessary items (extra load)in the vehicle.
• Maintain correct tire pressure. Check tirepressure regularly (when tires are cold).
• Remove snow tires when threat of snow orice has ended.
• Note that roof racks, ski racks, etc, increaseair resistance and also fuel consumption.
• At highway driving speeds, fuel consumptionwill be lower with the air conditioning on andthe windows closed than with the air condi-tioning off and the windows open.
• Using the onboard trip computer's fuel con-sumption modes can help you learn how todrive more economically.
Other factors that decrease gas mileage are:
• Dirty air cleaner
• Dirty engine oil and clogged oil filter
• Dragging brakes
• Incorrect front end alignment
Some of the above mentioned items and othersare checked at the standard maintenance inter-vals.

MAINTENANCE AND SERVICING
* Option/accessory, for more information, see Introduction.355
PosFunctionA
Accelerator pedal sensor, auto- dim mirror function, heated rear seats*7.5
-
Brake lights5
Laminated panoramic roof *20
Immobilizer5
Related information
•Fuses – engine compartment (p. 350)
• Fuses – cargo area/trunk (p. 356)
• Fuses – engine compartment cold zone (Start/Stop only) (p. 357)

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MAINTENANCE AND SERVICING
360
CAUTION
•Avoid waxing or polishing plastic or rub- ber components
• Polishing chromed strips can wear awayor damage the surface
• Polishes containing abrasive substancesshould not be used
Related information
• Polishing and waxing (p. 361)
• Cleaning the interior (p. 361)
Automatic car wash
The vehicle should be washed at regular inter- vals since dirt, dust, insects and tar spotsadhere to the paint and may cause damage. Tohelp prevent corrosion, it is particularly importantto wash the car frequently in the wintertime.
• We do NOT recommend washing your car in an automatic wash during the first fewmonths (because the paint will not havehardened sufficiently).
• An automatic wash is a simple and quick wayto clean your car, but it is worth rememberingthat it may not be as thorough as when youyourself go over the car with sponge andwater. Keeping the underbody clean is mostimportant, especially in the winter. Someautomatic washers do not have facilities forwashing the underbody.
NOTE
Condensation may form temporarily on the inside of the lenses of exterior lights such asheadlights, fog lights, or taillights. This is nor-mal and the lights are designed to withstandmoisture. Normally, condensation will dissi-pate after the lights have been on for a shorttime.
CAUTION
•
Before driving into an automatic car wash, turn off the optional rain sensor toavoid damaging the windshield wipers.
• Make sure that side view mirrors, auxiliarylamps, etc, are secure, and that anyantenna(s) are retracted or removed. Oth-erwise there is risk of the machine dis-lodging them.
• Chromed wheels:
Clean chrome-plated
wheels using the same detergents usedfor the body of the vehicle. Aggressivewheel-cleaning agents can permanentlystain chrome-plated wheels.
WARNING
• When the vehicle is driven immediately after being washed, apply the brakes,including the parking brake, several timesin order to remove any moisture from thebrake linings.
• Engine cleaning agents should not beused when the engine is warm. This con-stitutes a fire risk.
Related information
•
Polishing and waxing (p. 361)
• Cleaning the interior (p. 361)
• Washing the car (p. 359)