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SAFETY
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89
Airbag system As an enhancement to the three-point seat belts, your vehicle is equipped with an airbag system.
WARNING
•If the airbag warning light stays on after the engine has started or if it illuminateswhile you are driving, have the vehicleinspected by a trained and qualified Volvoservice technician as soon as possible.
• Never try to repair any component or partof the airbag systems yourself. Any inter-ference in the system could cause mal-function and serious injury. All work onthese systems should be performed by atrained and qualified Volvo service techni-cian.
WARNING
If your vehicle has become flood-damaged in any way (e.g., soaked carpeting/standingwater on the floor of the vehicle), do notattempt to start the vehicle. This may causeairbag deployment which could result in seri-ous injury. Have the vehicle towed to a trainedand qualified Volvo service technician forrepairs. Before attempting to tow the vehicle:
1. Switch off the ignition for at least
10 minutes and disconnect the battery.
2. Follow the instructions for manually over- riding the shiftlock system.
Deployed airbags
WARNING
If any of the airbags have deployed:
• Do not attempt to drive the vehicle. Have it towed to a qualified repair facility.
• If necessary seek medical attentIon.
Driver/passenger side airbags
The front airbags supplement the three-point seat belts. For these airbags to provide the pro-tection intended, seat belts must be worn at alltimes.
Driver's and passenger's side airbags
The front airbag systemThe front airbag system includes gas generators surrounded by the airbags, and deceleration sen-sors that activate the gas generators, causing theairbags to be inflated with nitrogen gas. As the movement of the seats' occupants com- presses the airbags, some of the gas is expelledat a controlled rate to provide better cushioning.Both seat belt pretensioners also deploy, mini-mizing seat belt slack. The entire process, includ-ing inflation and deflation of the airbags, takesapproximately one fifth of a second.
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SAFETY
92
Passenger's side airbag decal
WARNING
•Children must never be allowed in the front passenger's seat.
• Occupants in the front passenger's seatmust never sit on the edge of the seat, sitleaning toward the instrument panel orotherwise sit out of position.
• The occupant's back must be as uprightas comfort allows and be against the seatback with the seat belt properly fastened.
• Feet must be on the floor, e.g., not on thedash, seat or out of the window.
WARNING
•
No objects or accessory equipment, e.g. dashboard covers, may be placed on,attached to, or installed near the air baghatch (the area above the glove compart-ment) or the area affected by airbagdeployment.
• There should be no loose articles, suchas coffee cups on the floor, seat, or dash-board area.
• Never try to open the airbag cover on thesteering wheel or the passenger's sidedashboard. This should only be done by atrained and qualified Volvo service techni-cian.
• Failure to follow these instructions canresult in injury to the vehicle occupants.
Related information
• Seat belts (p. 64)
• Occupant weight sensor (p. 84)
Inflatable curtains
The inflatable curtain is designed to help protect the heads of the occupants of the front seatsand the occupant of the outboard rear seatingpositions in certain side impact collisions.
This system consists of inflatable curtains located along the sides of the roof liners, stretching fromthe center of both front side windows to the rearedge of the rear side door windows. In certain side impacts, both the Inflatable Cur-
tain (IC) and the side Impact Airbag System (SIPS airbag) will deploy. The IC and the SIPSairbag deploy simultaneously.
Page 129 of 546

INSTRUMENTS AND CONTROLS
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127
SymbolExplanation
Lane keeping aid White symbol: lane keeping aid on and marker lines detected. Gray symbol: lane keeping aid on and no marker lines detected. Yellow symbol: lane keeping aid active
Lane keeping aid and rain sen- sor White symbol: lane keeping aid on and marker lines detected. Rainsensor on. Gray symbol: lane keeping aid on and no marker lines detected.Rain sensor on.
AUS models
B Canadian models
C XC90 T8 Twin Engine Plug-in Hybrid only.
Door/hood/tailgate/fuel filler door
reminder
If a door or the hood/tailgate/fuel filler door are not closed properly, the information or warningsymbol will illuminate and a graphic will be dis-played in instrument panel. Stop the vehicle in asafe place as soon as possible and close thedoor, etc.
Related information
• Instrument panel (p. 127)
• Warning symbols in the instrument panel (p. 137)
• Door and seat belt reminders (p. 67)
Instrument panel
The instrument panel displays vehicle- and driv- ing-related information.
The gauges, indicators, symbols and functions displayed in the instrument panel depend on theequipment/systems installed in the vehicle andwhich functions are currently activated. The instrument panel is available in two versions: 12" and 8". Some of the functions listed below are optional.
WARNING
• If the instrument panel is not functioning properly, information about e.g., brakes,airbags or other safety-related messagescannot be displayed and the driver cannotbe alerted to possible problems.
• If the instrument panel turns off, does notactivate when the ignition is switched onor is completely/partially not possible toread, do not drive the vehicle. Contact atrained and qualified Volvo service techni-cian.
Page 352 of 546

STARTING AND DRIVING
350
Braking effect after a collisionIn certain types of collisions, the vehicle's brakes are applied to help prevent or mitigate a secon-dary collision.
Maintaining control of the vehicle after a collision may be difficult. To help avoid or mitigate theeffect of a secondary collision, the brakes areapplied automatically to help bring the vehicle toa stop. The brake lights and hazard warning flashers will be activated and the flashers will remain on afterthe vehicle has come to a standstill. The parkingbrake will then be applied automatically. In a situation where stopping the vehicle may not be desirable, the driver can override this systemby pressing the accelerator pedal. This feature can only function if the brake system is intact after the collision.
Related information
• Brake functions (p. 348)
• Airbag system (p. 89)
• Rear Collision Warning (RCW) (p. 292)
Emergency brake lights
The emergency brake lights activate in the event of hard braking/rapid deceleration at most nor-mal driving speeds or if the ABS system is acti-vated. This function causes an additional taillighton each side of the vehicle to illuminate to helpalert vehicles traveling behind.
Once the emergency brake lights have been acti- vated, if the driver releases the brake pedal, thebrake lights will return to their normal function.
Related information
• Brakes (p. 346)
• Hazard warning flashers (p. 147)
• Brake lights (p. 146)
Hill Descent Control (HDC) HDC is a type of low-speed automatic engine brake and makes it possible to increase ordecrease the vehicle's speed on steep downhillgradients using only the accelerator pedal, with-out applying the brakes. HDC is integrated into the
Off Road drive
mode.
HDC is particularly useful when driving down steep hills with rough surfaces, and where theroad may have slippery patches.
WARNING
HDC does not function in all situations, and is a supplementary braking aid. The driver hasfull responsibility for driving in a safe manner.
FunctionHDC allows the vehicle to roll forward or in reverse at very low speed with enhanced enginebraking. However, speed can be adjusted withthe accelerator pedal. When the acceleratorpedal is released, the vehicle will return to verylow speed. The driver can use the brakes to slow or stop the vehicle at any time. HDC is activated along with Low Speed Control (LSC), which together make driving on slipperysurfaces at low speeds easier.