2018 VOLVO XC90 parking brake

STARTING AND DRIVING
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Location of the backup reader in the tunnel console.
If the Vehicle key not found message is shown
in the instrument panel at start, place the remote key at the backup reader and then make a newstart attempt.
NOTE
When the remote key is placed in the backup reader, make sure that no other vehicle keys,metal objects or electronic devices (e.g. cellu-lar phones, tablets, laptops or chargers) are inthe backup reader. Multiple vehicle keys closeto each other in the backup reader can dis-rupt their functionality.
CAUTION
If the engine has not responded after 3 attempts – wait for 3 minutes before startinga new attempt. Starting capability increases ifthe starter battery is given time to recover.
WARNING
Never remove the remote control key from
the vehicle while driving or the vehicle is being towed.
WARNING
• Always remove the remote key from the passenger compartment when you leavethe vehicle and make sure the ignition is in mode
0.
• Always put the gear selector in
P and
apply the parking brake before leaving the vehicle. Never leave the vehicle unsu-pervised while the engine is running.
• Always open the garage door fully andmake sure that ventilation is very goodbefore starting the engine in a garage.The exhaust fumes produced by the vehi-cle contain carbon monoxide, which isinvisible and odorless but very toxic.
WARNING
Always take along the remote control key when leaving the vehicle and make sure thatthe vehicle electrical system is in ignition mode
0 – especially if there are children in
the vehicle.
NOTE
With a cold start, idling speed may be consid- erably higher than normal for certain enginetypes. This is done to get the emissions sys-tem up to normal operating temperature asquickly as possible, which minimizes exhaustemissions and protects the environment.
CAUTION
• When starting in cold weather, the auto- matic transmission may shift up at slightlyhigher engine speeds than normal untilthe automatic transmission fluid reachesnormal operating temperature.
• Do not race a cold engine immediatelyafter starting. This could prevent fluidsfrom properly lubricating vital compo-nents in the engine before it has reachedthe proper operating temperature.
• The engine should be idling when thegear selector is moved. Never accelerateuntil the gear is fully engaged. Accelerat-ing rapidly before a gear is properlyengaged could lead to harder wear ofcomponents.
• To help prevent the transmission oil from overheating, select
P or N when idling at
a standstill for prolonged periods of time.

STARTING AND DRIVING
* Option/accessory.
408
Selecting ignition mode
The vehicle's ignition can be put in various modes (levels) to make different functions availa-ble.
Selecting an ignition mode
Start knob in the tunnel console.
• Ignition mode 0
- Unlock the vehicle and
keep the remote key in the passenger com- partment.
NOTE
To set level I or II without engine start – do
not depress the brake pedal (or clutch pedal
for vehicles with manual transmission) when selecting this ignition mode.
• Ignition mode I
- Turn the start knob clock-
wise and release it. The control will automati- cally return to the original position.
• Ignition mode II
- Turn the start knob clock-
wise and hold it there for approx. 5 seconds.Release the knob, which will automaticallyreturn to its original position.
• Back to ignition mode 0
- To return to igni-
tion mode 0 from mode I and II, turn the start
knob clockwise and release it. The controlwill automatically return to the original posi-tion.
Related information
• Starting the vehicle (p. 404)
• Switching off the vehicle (p. 406)
• Ignition modes (p. 407)
• Adjusting the steering wheel (p. 203)
• Jump starting using another battery (p. 447)
Brake functions
The vehicle's brakes are used to reduce speed or prevent the vehicle from rolling.
In addition to the wheel brakes and parking brakes, the vehicle is also equipped with a num-ber of automatic brake assist functions. Thesesystems help the driver by e.g. keeping the vehi-cle stationary when the brake pedal is notdepressed (e.g. at a traffic light or intersection),when starting up a hill or when driving down a hill. Depending on how the vehicle is equipped, the following brake assist functions may be included:
• Auto-hold brakes (Auto Hold)
• Hill Start Assist (Hill Start Assist)
• Braking assist after a collision
• City Safety
• Hill Descent Control (Hill Descent Control)
*
Related information
•Brakes (p. 409)
• Parking brake (p. 411)
• Auto-hold brakes (p. 415)
• Braking assist after a collision (p. 417)
• Hill Start Assist (p. 416)
• City Safety
™ (p. 333)
• Hill Descent Control
* (p. 437)

STARTING AND DRIVING
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Braking on salted roads When driving on salted roads, a layer of salt may form on the brake discs and brake pads.
This could increase stopping distance. Maintain an extra large safety distance to the vehicleahead. Make sure to also:
• Apply the brakes from time to time to helpremove salt. Make sure braking does notpose a risk to any other road users.
• Gently apply the brakes when you have fin-ished driving and before driving again.
Related information
• Brakes (p. 409)
• Braking on wet roads (p. 410)
Maintenance of the brake system
Regularly check the brake system components for wear.
To keep the vehicle as safe and reliable as possi- ble, follow the Volvo service schedule specified inthe Warranty and Maintenance Records Informa-tion booklet. New and replaced brake pads andbrake discs do not provide optimal braking effectuntil they are "broken in" by driving a few hun-dred kilometers (miles). Compensate for thereduced braking effect by applying greater pres-sure to the brake pedal. Volvo recommends onlyusing brake pads approved for your Volvo.
CAUTION
The brake system's components should be regularly checked for wear. Contact a workshop for advice on how to do this or let a workshop perform the inspection- an authorized Volvo workshop is recom-mended.
Related information
• Brakes (p. 409)
Parking brake The parking brake helps keep the vehicle sta- tionary by mechanically locking two wheels.
The parking brake controls are located in the tunnel console between the seats.
When the electric parking brake is being applied, a faint sound can be heard from the brake's elec-tric motor. This sound can also be heard duringthe automatic function check of the parkingbrake. If the vehicle is stationary when the parking brake is applied, it will only be applied to the rearwheels. If it is applied while the vehicle is moving,the normal brakes will be used on all four wheels.Braking will be transferred to only the rearwheels when the vehicle is almost stopped.

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STARTING AND DRIVING
412
Related information
•Activating and deactivating the parking brake (p. 412)
• Parking on a hill (p. 414)
• Parking brake malfunction (p. 414)
• Auto-hold brakes (p. 415)
Activating and deactivating theparking brake Use the parking brake to help keep the vehicle stationary when it is parked.
Activating the parking brake
1. Pull up the control.
> The symbol in the instrument panel willilluminate when the parking brake is acti- vated.
2. Make sure the vehicle is stationary.
Symbol in the instrument panel
SymbolMeaning
A
B The symbol will be illuminated when the parking brake is acti-vated. A flashing symbol indicates that a fault has been detected. Read themessage in the instrument panel.
A
Canadian models.
B US models.
Automatic activation
The parking brake is applied automatically:
• if the Auto-hold function (automatic brake application when the vehicle is stationary) isactivated and the vehicle has been stationaryfor a prolonged period of time (5-10minutes).
• when the gear selector is moved to
P on a
steep hill.
• when the ignition is switched off and the set-ting for automatically activating the parkingbrake is activated in the center display.

STARTING AND DRIVING
413
Emergency braking
In an emergency, the parking brake can be acti- vated when the vehicle is moving by pulling andholding up the control. The braking process iscanceled when the control is released or if theaccelerator pedal is depressed.
NOTE
In case of emergency braking at high speeds, a signal sounds during the brake procedure.
Deactivating the parking brake
Deactivating manually
1. Depress the brake pedal firmly.
2. Press the control.> The parking brake will release and thesymbol in the instrument panel will go out.
Deactivating automatically
1. Fasten your seat belt.
2. Depress the brake pedal firmly.
3. Start the vehicle.4. Move the gear selector to D or R and press
the accelerator pedal.
> The parking brake will release and the symbol in the instrument panel will go out.
NOTE
When the vehicle is initially started, the park- ing brake could disengage automatically evenif the driver's seat belt is not buckled.
Related information
• Settings for automatically activating the park- ing brake (p. 413)
• Parking brake malfunction (p. 414)
• Parking brake (p. 411)
• Parking on a hill (p. 414)
Settings for automatically activatingthe parking brake
Choose whether the parking brake should be activated automatically when the vehicle isswitched off.
This selection is made in the Settings menu in the center display. 1. Tap
Settings in the Top view.
2. Tap
My CarParking Brake and
Suspension and select or deselect theAuto Activate Parking Brake function.
Related information
• Activating and deactivating the parking brake (p. 412)
• Parking brake (p. 411)

STARTING AND DRIVING
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Parking on a hill
Always use the parking brake when parking on a hill.
WARNING
Always apply the parking brake when parking on an incline. Selecting a gear or putting the automatic transmission in P may not be suffi-
cient to keep the vehicle stationary in all sit- uations.
If the vehicle is pointing uphill: • Turn the front wheels so they are pointing away from
the curb.
If the vehicle is pointing downhill:
• Turn the front wheels so they are pointingtoward
the curb.
Heavy load uphill
Heavy loads, such as a trailer, could cause the vehicle to roll backward when the parking brakeis released automatically on steep uphill gradi-ents. To help avoid this, pull the control upwardwhile you are driving away. Release the controlwhen the vehicle gains traction.
Related information
•Activating and deactivating the parking brake(p. 412)
Parking brake malfunction
If you are unable to deactivate or activate the parking brake after several attempts, contact anauthorized Volvo workshop.
A audible warning signal will sound if the parking brake is applied while the vehicle is being driven. If the vehicle must be parked before the problem is rectified, turn the wheels as when parking on an incline and put the gear selector in P.
Low battery charge levelIf the battery charge level is too low, it will not be possible to apply or release the parking brake.Connect an auxiliary battery to the vehicle if thebattery is discharged.
Replacing brake padsDue to the design of the electric parking brake,the rear brake pads must be replaced by a work-shop. An authorized Volvo workshop is recom-mended.
Symbols in the instrument panel
SymbolMeaning
A
B A flashing symbol indicates that a fault has been detected. See themessage in the instrument panel.
A
B
Fault in the brake system. See the message in the instrument panel.
Information message in the instru- ment panel.
A
Canadian models.
B US models.

STARTING AND DRIVING
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Related information
•Activating and deactivating the parking brake (p. 412)
• Start battery (p. 598)
• Volvo's service program (p. 576)
Auto-hold brakes
With the Auto-hold brake function, the driver can release the brake pedal and the brakes willremain applied, for example, when the vehiclehas stopped at a traffic light or intersection.
When the vehicle stops, the brakes are activated automatically. The function can use either thenormal brakes or the parking brakes to keep thevehicle stationary and works on flat surfaces orhills. When driving off, the brakes will be automat-ically released if the driver's seat belt is buckled.
NOTE
When braking to a stop on an uphill or down- hill gradient, depress the brake pedal withslightly more force than usual before releas-ing to ensure that the vehicle cannot move atall.
The parking brake is activated if: • the vehicle is switched off
• the driver's door is opened
• the driver's seat belt is removed
• the vehicle has been stationary for a pro- longed period of time (5-10 minutes)
Symbols in the instrument panel
SymbolMeaning
This symbol illuminates when the function is using the normal brakesto keep the vehicle stationary.
A
B This symbol illuminates when the function is using the parking braketo keep the vehicle stationary.
A
Canadian models.
B US models.
Related information
• Activating and deactivating Auto-hold at a standstill (p. 416)
• Brakes (p. 409)
• Parking brake (p. 411)
• Hill Start Assist (p. 416)

STARTING AND DRIVING
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* Option/accessory.417
Braking assist after a collision In a collision in which the activation level is reached for the pyrotechnic seat belt tensionersor airbags, or if a collision with a large animal isdetected, the vehicle's brakes will be automati-cally activated. This function is intended to helpprevent or reduce the effects of any subsequentcollision.
After a serious collision, it may no longer be pos- sible to control and steer the vehicle. In order toavoid or mitigate a possible further collision witha vehicle or an object in the vehicle's path, thebrake assist system is activated automatically tohelp stop the vehicle safely. The brake lights and hazard warning flashers are activated during braking. When the vehicle has stopped, the hazard warning flashers will con-tinue to flash and the parking brake will beapplied. If braking is not appropriate, e.g. if there is a risk of being hit by passing traffic, the driver can over-ride the system by depressing the acceleratorpedal. This function assumes that the brake system is intact after a collision. Brake assist is part of the Rear Collision Warning and Blind Spot Information safety systems.
Related information
•Rear Collision Warning (p. 345)
• BLIS
* (p. 346)
• Brake functions (p. 408)
Transmission The transmission is part of the vehicle's driveline (power transmission) between the engine andthe drive wheels. The function of the transmis-sion is to change gears depending on speedand power needs.
The vehicle has an 8-speed automatic transmis- sion. The number of gears allows the engine'storque and power band to be effectively utilized.Two of the gears are overdrive gears that savefuel when driving at a constant engine speed.Manual shifting is also possible. The instrumentpanel shows the gear currently in use.
CAUTION
Check the operating temperature of the transmission to help avoid damage to any ofthe drive system components. If there is a riskof overheating, a warning symbol will appearin the instrument panel and a text messagewill be displayed. Follow the recommenda-tions given.
Symbols in the instrument panelIf a problem should occur with the transmission, a symbol and a message will appear in the instru-ment panel.