2018 VOLVO XC90 T8 parking brake

STARTING AND DRIVING
436
Auto-hold brakesWith 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. 436)
• Brakes (p. 429)
• Parking brake (p. 432)
• Hill Start Assist (p. 437)
Activating and deactivating Auto-hold at a standstill The Auto-hold brake function at a standstill is activated with the button in the tunnel console.
–Press the button in the tunnel console to activate or deactivate the function.
> The indicator light in the button will illumi-
nate when the function is activated. The function will remain active the next timethe vehicle is started.

STARTING AND DRIVING
}}
437
When shutting offIf the function is active and holding the vehicle stationary using the normalbrakes (A symbol lit), the brake pedalmust be depressed while pressing the
button in order to deactivate Auto-hold.
• The function will remain off until it is reactiva- ted.
• When Auto-hold is switched off, Hill StartAssist (HSA) will remain active to help pre-vent the vehicle from rolling backward whenstarting up a hill.
Related information
•Auto-hold brakes (p. 436)
Hill Start Assist
The function for assisting when starting the vehi- cle on inclines, Hill Start Assist (HSA), helpsprevent the vehicle from rolling backward whenstarting on an uphill gradient. When backing upa hill, HSA helps prevent the vehicle from rollingforward.
The function retains pressure from the brake pedal in the brake system for several secondsafter the brake pedal has been released. This temporary braking effect is released after a few seconds or when the driver begins driving. Hill Start Assist is available even if the Auto-hold brake function is switched off.
Related information
• Auto-hold brakes (p. 436)
• Brakes (p. 429)
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.

STARTING AND DRIVING
}}
439
Gear selector positions forautomatic transmissions In vehicles with an automatic transmission, the system selects the optimal gear for the currentdriving conditions. The transmission also has amanual mode.
The instrument panel shows which gear is cur- rently in use:
P, R, N, D or B.
For manual shifting, the gear indicator in the instrument panel displays the gear currentlybeing used (1-8).
Selecting gearsThe gear selector is a shift-by-wire selector,where shifting is done electronically instead ofmechanically. This makes shifting easier and thegear positions more distinct. Select gears by moving the spring-loaded, non-locking gear selector forward or backward.
Gear selector positions
Park -
P
Park is activated using the P button located next
to the gear selector. Select
P when the vehicle is parked or when star-
ting the engine. The vehicle must be stationary when Park is selected. To move to another gear from Park, the brake pedal must be depressed and the ignition in mode II.
When parking – apply the parking brake before shifting to Park.
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.
NOTE
The gear selector must be in the P position
before the vehicle can be locked and the alarm set.

||
STARTING AND DRIVING
* Option/accessory.
440 Help functions The system will automatically shift to
P:
• if the ignition is switched off while
D or R is
selected.
• if the driver unbuckles the seat belt and opens the driver's door while the vehicle isrunning with the gear selector in a gear other than
P.
To park a vehicle with an unbuckled seat belt andopen door – end P mode by shifting to R or D
again.
Reverse - R
Select R when backing up. The vehicle must be
stationary when Reverse is selected.
Neutral - N
No gear is selected and the engine can be started. Apply the parking brake if the vehicle is stationary with the gear selector in N.
To move the gear selector from Neutral to another gear, the brake pedal must be depressed and the ignition in mode II.
D drive mode
D is the normal driving gear position. The trans-
mission shifts up or down automatically depend- ing on acceleration and speed. The vehicle mustbe stationary when the gear selector is moved from R to D.
Brake - B
B can be selected at any time during a drive. In B
mode, the engine braking function is activated when the accelerator pedal is released, whichhelps charge the hybrid battery. This offers addi-tional opportunities to recharge the hybrid bat-tery, since the battery is charged even when thebrake pedal is not depressed.
B mode in the instrument panel.
From B mode, it is possible to manually shift to
lower gears. The currently selected gear (1-8) will be displayed in the instrument panel.
• Pull the gear selector backward once to shiftdown one gear.
• Pull the gear selector backward again to shiftdown to lower gears.
To shift manually to a higher gear, the vehicle must be equipped with steering wheel paddles *. •
Push the gear selector forward to return to
D
mode.
For smooth shifting and engine performance, the
transmission will shift down automatically if the vehicle's speed becomes too low for the selectedgear.
Related information
• Shiftlock (p. 442)
• Using the steering wheel paddles
* to shift
(p. 441)
• The kickdown function (p. 442)
• Gear indicator
* (p. 442)

STARTING AND DRIVING
}}
* Option/accessory.445
Drive modes
Drive modes affect the vehicle's driving charac- teristics in different ways to enhance and sim-plify the driving experience in certain types of sit-uations.
Drive modes enable easy access to the vehicle's many functions and settings in different drivingsituations. The following systems are adapted tohelp optimize driving characteristics in each drivemode: • Steering
• Engine/transmission/all-wheel drive
• Brakes
• Pneumatic suspension
* and shock absorbers
• Instrument panel
• Climate control settings
Select the drive mode that is best suited to the current driving conditions. Keep in mind that notall drive modes are available in all situations.
Available drive modes
WARNING
Keep in mind that the vehicle does not emit any engine noise when using the electricmotor and may therefore be difficult to detectfor children, pedestrians, cyclists or animals.This is particularly true at low speeds, e.g. inparking lots.
WARNING
Do not leave the vehicle in an unventilated area with a drive mode activated and the com-bustion engine switched off. The engine willstart automatically if the charge level in thehybrid battery is low and the resulting exhaustgases can be very harmful to people and ani-mals.
HYBRID
• This is the default mode in which the electric motor and combustion engine work together.
The vehicle starts in Hybrid mode. The control system uses both the electric motor and the gas-oline engine - separately or in tandem - and cal-culates optimal utilization with regard to perform-ance, fuel consumption and comfort. At highspeeds, ground clearance is automatically low- ered 4
to reduce air resistance. Driving capacity on
the electric motor alone is determined by factors such as the hybrid battery's charge level, the need for heat/cooling in the passenger compart-ment, etc. If there is sufficient charge in the battery, it is possible to drive solely on electric power. Whenthe accelerator pedal is pressed, only the electricmotor will be activated until the battery reaches acertain charge level. Above this level, the currentin the battery cannot supply the power requestedby the accelerator pedal and the combustionengine will start. When the hybrid battery's charge level is low, the combustion engine will start more frequently tosave the remaining current in the battery. Chargethe hybrid battery from a 120-240 volt outlet using a charging cable, or activate
Charge in
Function view to reset the option of only using the electric motor. This drive mode is designed for low energy con- sumption with an optimized mix between theelectric motor and gasoline engine, without com-promising on climate comfort or driving experi-ence. When faster acceleration is requested bythe driver, the electric driveline will be utilized tohelp provide maximum additional power. Thevehicle also monitors the driving conditions andautomatically engages all-wheel drive if neces-sary. All-wheel drive and extra electric power arealways available regardless of the battery'scharging status.
4 For vehicles with pneumatic suspension.

STARTING AND DRIVING
}}
* Option/accessory.453
Leveling control settings *
The vehicle can be lowered or raised to make it easier to load or for passengers to get in andout. Turn off leveling control before lifting the vehicle with a jack to help avoid problems with thepneumatic suspension.
Adjusting loading mode
Use the buttons in the cargo compartment to raise or lower the rear section of the vehicle tofacilitate loading or unloading the vehicle or con-necting or disconnecting a trailer.
Center display settings
Easy Entry and Exit Suspension Control
The vehicle can be lowered to make it easier to get in and out. Activating easy entry in the center display: 1.
Tap
Settings in the Top view.
2. Tap
My CarMirrors and Convenience.
3. Select
Easy Entry and Exit Suspension
Control.
> When the vehicle is parked and the engine is turned off, the level is lowered. (Level adjustment will stop if a side dooris opened and will resume after a slightdelay when the door has been closed.)When the engine is started and the vehi-cle begins to move, the level will be raisedto the height set by the selected drivemode.
Disable Leveling Control
In certain situations, this function must be turned off, e.g. before the vehicle is raised using a jack *.
The level difference caused by raising the vehicle with a jack could cause problems with the pneu-matic suspension. Turning off the function in the center display:1. Tap
Settings in the Top view.
2. Tap
My CarParking Brake and
Suspension.
3. Select
Disable Leveling Control.
Related information
• Leveling control
* and suspension (p. 450)
• Loading recommendations (p. 586)
Low Speed Control The low-speed function, Low Speed Control (LSC), facilitates and improves control and trac-tion on rough roads and slippery surfaces, e.g.when towing a trailer on grass or up boat ramps. The function is included in the Off Road drive mode.
Low Speed Control is designed for driving on rough roads and when towing trailers at lowspeeds, up to approximately 40 km/h (25 mph). When driving at low speeds, LSC prioritizes low gears and all-wheel drive to help avoid wheel spinand improve traction on all wheels. The accelera-tor pedal will be less responsive to improve trac-tion and speed control at low speeds. The function is activated together with Hill Descent Control (HDC), which makes it possibleto control speed going down steep hills using theaccelerator pedal and reduces the need to usethe brake pedal. The system makes it possible tomaintain a low and uniform speed when drivingdown steep hills.

STARTING AND DRIVING
* Option/accessory.473
CAUTION
•Bumper-attached trailer hitches must not be used on Volvos, nor should safetychains be attached to the bumper.
• Trailer hitches attaching to the vehiclerear axle must not be used.
• Never connect a trailer's hydraulic brakesystem directly to the vehicle brake sys-tem, nor a trailer's lighting system directlyto the vehicle lighting system. Consultyour nearest authorized Volvo retailer forcorrect installation.
• When towing a trailer, the trailer's safetychains or wire must be correctly fastenedto the attachment points provided in thetrailer hitch on the vehicle. The safetychain or wire must never be fastened toor wound around the towing ball.
NOTE
The optional detachable trailer hitch may not be available in all markets or on all models.Consult your Volvo retailer.
NOTE
Extreme weather conditions, towing a trailer, driving at high altitudes and fuel quality arefactors that significantly increase a vehicle'sfuel consumption.
Trailer weights
WARNING
Please adhere to the recommendations provi- ded for trailer weight. If the recommendationsare not followed, the vehicle and trailer maybe difficult to control during evasive maneu-vers and braking.
NOTE
The specified maximum trailer weights are those permitted by Volvo. National vehicleregulations may set additional restrictions ontrailer weight and speed. The trailer hitchesmay be certified for higher towing weightsthan the vehicle is permitted to tow.
Self-leveling suspension
*The vehicle's self-leveling system attempts to keep the vehicle at a constant level, regardless ofload (up to the maximum permitted weight).When the vehicle is stationary, the rear end of thevehicle will be slightly lowered, which is normal.
Driving in hilly terrain or hot weatherIn certain conditions, there is a risk of overheat-ing when driving with a trailer. If overheating ofthe engine and drive system is detected, a warn-ing symbol will illuminate in the instrument panelalong with a message. The automatic transmission selects the optimalgear for the current load and engine speed.
Steep inclines
Do not lock the automatic transmission into a higher gear than what the engine can handle
‒ it
is not always preferable to drive in high gears at low rpm.
Parking on a hill
1. Depress the brake pedal.
2. Apply the parking brake.3. Put the gear selector in P.
4. Release the brake pedal.Put chocks behind the wheels when the vehicle is parked on a hill with a trailer attached.
Starting on a hill
1. Depress the brake pedal. 2. Put the gear selector in D.
3. Release the parking brake.
4. Release the brake pedal and start driving.
Related information
• Trailer Stability Assist
* (p. 474)
• Checking trailer lights (p. 475)
• Towing capacity and tongue weight (p. 660)
• Overheating of engine and transmission (p. 468)

STARTING AND DRIVING
}}
* Option/accessory.477
Remove the cover - press the marker with your finger while prying open the oppositeside/corner open with a coin or similar.
> The cover turns along its center line and
can then be removed. 3. Screw in the towing eyelet until it reaches its
stop. Fasten the eyelet securing by, for exam- ple, inserting a lug wrench * through it and
using this as a lever.
CAUTION
It is important that the towing eye is screwed in securely as far as possible.
Removing the towing eyelet:
–After use, unscrew the towing eyelet and return it to its storage location. Replace the cover on the bumper.
Related information
• Towing using a towline (p. 476)
• Recovery (p. 477)
• Tool kit (p. 564)
Recovery
This section refers to transporting the vehicle with a tow truck or similar vehicle.
Call a professional towing service for assistance. In certain conditions, the towing eyelet can be used to pull the vehicle onto a flatbed tow truck.
CAUTION
Note that vehicles with Twin Engine must always be towed raised with all wheels on thetow truck.
For vehicles equipped with leveling control *:
If the vehicle is equipped with pneumatic suspen- sion, this feature must be turned off before thevehicle is lifted onto a tow truck. Turning off thefunction in the center display. 1. Tap
Settings in the Top view.
2. Tap
My CarParking Brake and
Suspension.
3. Select
Disable Leveling Control.
The vehicle's location and ground clearance determine if it can be lifted onto a tow truck. Ifthe incline of the tow truck is too steep or if theground clearance under the vehicle is insufficient,attempting to pull it up may result in damage. Inthis case, the vehicle should only be lifted withthe tow truck's lifting equipment.