2017 VOLVO XC90 ECU

DRIVER SUPPORT
* Option/accessory.279
Adaptive Cruise Control (ACC) - troubleshooting
If this symbol is displayed in the instru- ment panel and the message
Windscreen sensor Sensor
blocked, see Owner's manual
appears, the ACC radar sensor is blocked and cannot detect vehicles ahead.
This message also indicates that the following systems may have reduced functionality:
• Distance Alert
• City Safety
• Driver Alert Control
• Pilot Assist
• Lane Keeping Aid (LKA) •
Road Sign Information (RSI)
The following table lists possible causes for this message being displayed and suitable actions:
Cause Action
The windshield in front of the radar is dirty or covered with snow/ice. Clean/clear the windshield in front of the radar.
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 thefunction of the radar.
The windshield in front of the radar is clean but the message remains in thedisplay. Wait a short time. It may take several minutes for the radar to detect that it isno longer obstructed.
A text message can be erased by briefly pressing the
O button on the right-side steering wheel
keypad. If the message recurs, contact a trained and authorized Volvo service technician orretailer.
Related information
• Adaptive Cruise Control (ACC)
* (p. 269)

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Symbol Message Explanation
Adaptive cruise Service requiredThe system is not functioning properly. Contact a trained and qualified Volvo Service tech- nician.
Windscreen sensor Sensor blocked, see
Owner's manualClean the windshield in front of the camera/radar sensor.
A text message can be erased by briefly pressing the O button on the right-side steering wheel
keypad. If the message recurs, contact a trained and authorized Volvo service technician orretailer.
Related information
• Adaptive Cruise Control (ACC)
* (p. 269)
• Road Sign Information (RSI)
* (p. 324)

DRIVER SUPPORT
315
City Safety symbols and messages
A number of City Safety-related messages may be displayed in the instrument panel.
Several examples are provided in the following table:
Message Explanation
Automatic intervention City SafetyWhen City Safety is braking or has applied the brakes, one of more symbols may illuminate in the instrument panel and a text message will be displayed.
City Safety Reduced functionality Service requiredThe system is not functioning properly. Contact a trained and authorized Volvo service technician.
A text message can be erased by briefly pressing the O button on the right-side steering wheel
keypad. If the message recurs, contact a trained and authorized Volvo service technician orretailer.
Related information
• City Safety
™ (p. 304)

DRIVER SUPPORT
* Option/accessory.323
Blind Spot Information (BLIS) * with
Cross Traffic Alert (CTA) * symbols
and messages
In situations where Blind Spot Information and/or Cross Traffic Alert are not functioning properly or if the function is interrupted, a sym-bol and a text message may be displayed in theinstrument panel. Follow the instructions provi-ded.
The following table lists several symbols and messages:
Message
Explanation
Blind spot sensor Service requiredThe system is not functioning properly. Contact a trained and qualified Volvo service technician
Blind spot system off Trailer attachedBLIS and CTA have been deactivated because a trailer has been connected to teh vehicle's electrical system.
A text message can be erased by briefly pressing the O button on the right-side steering wheel
keypad. If the message recurs, contact a trained and authorized Volvo service technician orretailer.
Related information
• Cross Traffic Alert (CTA)
* (p. 319)
• Blind Spot Information (BLIS)
* (p. 317)

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Symbols and messagesThe following table lists several LKA-related symbols and messages.
SymbolMessage Explanation
Driver support system Reduced functionality Service requiredThe system is not functioning properly. Contact a trained and qualified Volvo service techni- cian.
Windscreen sensor Sensor blocked, see Owner's manualThe camera's functionality is limited.
Lane Keeping Aid Apply steeringLKA's steering assistance does not function if the driver's hands are not on the steering wheel. Steer the vehicle actively.
Lane Keeping Aid Standby until steering appliedLKA's steering assistance is in standby mode until the driver actively steers the vehicle.
A text message can be erased by briefly pressing the O button on the right-side steering wheel
keypad. If the message recurs, contact a trained and authorized Volvo service technician orretailer.Related information
• Driving lane assistance (p. 328)
• Activating/deactivating Lane Keeping Aid(LKA) (p. 330)

DRIVER SUPPORT
* Option/accessory.339
Park assist symbols and messages
A number of messages relating to Park Assist will appear in the instrument panel.
The following table provides some examples.
Message Explanation
Park Assist System Unavailable Service requiredThe system is not functioning properly. Contact a trained and qualified Volvo service technician.
Park Assist System Sensors blocked, cleaning neededOne or more of the system's sensors are blocked. Check and clean the sensors as soon as possible.
A text message can be erased by briefly pressing the O button on the right-side steering wheel
keypad. If the message recurs, contact a trained and authorized Volvo service technician orretailer.
Related information
• Park Assist limitations (p. 338)
• Park Assist
* (p. 336)
• Activating/deactivating Park Assist (p. 337)

DRIVER SUPPORT
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352
Park Assist Pilot (PAP) * symbols
and messages
Park Assist Pilot uses graphics and text mes- sages to indicate if there is a problem with thesystem.Various PAP-related combinations of graphics and text messages are displayed in the instru-ment panel and sometimes also include suitableactions.
The following table provides some examples.
Message Explanation
Park Assist System Unavailable Service requiredThe system is not functioning properly. Contact a trained and qualified Volvo service technician.
Park Assist System Sensors blocked, cleaning neededOne or more of the system's sensors are blocked. Check and clean the sensors as soon as possible.
A text message can be erased by briefly pressing the O button in the center of the right-side steer-
ing wheel keypad. Contact a Volvo retailer or a trained and qualified Volvo service technician If a message indicatingthat PAP is not functioning properly remains dis-played or recurs.
Related information
• Park Assist Pilot (PAP)
* (p. 346)
• Using Park Assist Pilot (PAP)
* (p. 347)
• Park Assist Pilot (PAP)
* limitations (p. 350)

STARTING AND DRIVING
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367
Winter driving
Check your vehicle before the approach of cold weather.
The following advice is worth noting:
• Make sure that the engine coolant contains 50 percent antifreeze. Any other mixture willreduce freeze protection. This gives protec-tion against freezing down to –31 °F(–35 °C). The use of "recycled" antifreeze isnot approved by Volvo. Different types ofantifreeze must not be mixed.
• Volvo recommends using only genuine Volvoantifreeze in your vehicle's radiator.
• Try to keep the fuel tank well filled – thishelps prevent the formation of condensationin the tank. In addition, in extremely coldweather conditions it is worthwhile to addfuel line de-icer before refueling.
• The viscosity of the engine oil is important.Oil with low viscosity (thinner oil) improvescold-weather starting as well as decreasingfuel consumption while the engine is warm-ing up. Full synthetic 0W-30 oil is recom-mended for driving in areas with sustainedlow temperatures.
• The load placed on the battery is greater dur-ing the winter since the windshield wipers,lighting, etc., are used more often. Moreover,the capacity of the battery decreases as thetemperature drops. In very cold weather, apoorly charged battery can freeze and be damaged. It is therefore advisable to checkthe state of charge more frequently andspray an anti-rust oil on the battery posts.
• Volvo recommends the use of snow tires onall four wheels for winter driving.
• To prevent the washer fluid reservoir fromfreezing, add washer solvents containingantifreeze. This is important since dirt is oftensplashed on the windshield during winterdriving, requiring the frequent use of thewashers and wipers. Volvo Washer Solventshould be diluted as follows: Down to 14 °F(–10 °C): 1 part washer solvent and 4 partswater Down to 5 °F (–15 °C): 1 part washersolvent and 3 parts water Down to 0 °F(–18 °C): 1 part washer solvent and 2 partswater Down to –18 °F (–28 °C): 1 partwasher solvent and 1 part water.
• Use Volvo Teflon Lock Spray in the locks.
• Avoid using de-icing sprays as they cancause damage to the locks.
Related information
•Snow tires and chains (p. 459)
Towing eyelet
When used, the towing eyelet should always be securely attached in the openings on the rightside of the front and rear bumpers. There arecovers over these attachment points.
Using the towing eyelet
Take out the towing eyelet, which is stored under the floor in the cargo compartment.