2019 VOLVO S90 TWIN ENGINE parking brake

STARTING AND DRIVING
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Selecting ignition mode
The vehicle's ignition can be put in variousmodes (levels) to make different functions availa-ble.

Selecting an ignition mode
Start knob in the tunnel console.
Ignition mode 0 - Unlock the vehicle andkeep the remote key in the passenger com-partment.

NOTE
To set level I or II without engine start – donot depress the brake pedal (or clutch pedalfor vehicles with manual transmission) whenselecting 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 startknob clockwise and release it. The controlwill automatically return to the original posi-tion.
Related information
Starting the vehicle (p. 426)
Switching off the vehicle (p. 428)
Ignition modes (p. 429)
Adjusting the steering wheel (p. 193)
Jump starting using another battery (p. 466)
Brake functions
The vehicle's brakes are used to reduce speedor prevent the vehicle from rolling.
In addition to the wheel brakes and parkingbrakes, 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, thefollowing brake assist functions may be included:
Auto-hold brakes (Auto Hold)
Hill Start Assist (Hill Start Assist)
Braking assist after a collision
City Safety

Related information
Brakes (p. 431)
Parking brake (p. 434)
Auto-hold brakes (p. 437)
Braking assist after a collision (p. 439)
Hill Start Assist (p. 439)
City Safety™ (p. 333)

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Parking brake
The parking brake helps keep the vehicle sta-tionary by mechanically locking two wheels.
The parking brake controls are located in the tunnelconsole 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 brakeis 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.

Related information
Activating and deactivating the parking brake(p. 434)
Parking on a hill (p. 436)
Parking brake malfunction (p. 436)
Auto-hold brakes (p. 437)
Activating and deactivating theparking brake
Use the parking brake to help keep the vehiclestationary 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.

STARTING AND DRIVING
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Symbol in the instrument panel
Symbol Meaning
A
B
The symbol will be illuminatedwhen the parking brake is acti-vated.
A flashing symbol indicates that afault has been detected. Read themessage in the instrument panel.
AIn Canada.BIn the US.

Automatic activation
The parking brake is applied automatically:
when the ignition is switched off and the set-ting for automatically activating the parkingbrake is activated in the center display.
if the Auto-hold function (automatic brakeapplication 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 asteep hill.

Emergency braking
In an emergency, the parking brake can be acti-vated when the vehicle is moving by pulling and
holding 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 pressthe accelerator pedal.
> The parking brake will release and thesymbol 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. 436)
Parking brake malfunction (p. 436)
Parking brake (p. 434)
Parking on a hill (p. 436)

STARTING AND DRIVING
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Settings for automatically activatingthe parking brake
Choose whether the parking brake should beactivated automatically when the vehicle isswitched off.
This selection is made in the Settings menu inthe center display.
1.Tap Settings in the Top view.
2. Tap My CarParking Brake andSuspension and select or deselect theAuto Activate Parking Brake function.

Related information
Activating and deactivating the parking brake(p. 434)
Parking brake (p. 434)
Parking on a hill
Always use the parking brake when parking on ahill.
WARNING
Always apply the parking brake when parkingon an incline. Selecting a gear or putting theautomatic 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 pointingaway 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 thevehicle 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. 434)
Parking brake malfunction
If you are unable to deactivate or activate theparking brake after several attempts, contact anauthorized Volvo workshop.
A audible warning signal will sound if the parkingbrake is applied while the vehicle is being driven.
If the vehicle must be parked before the problemis rectified, turn the wheels as when parking onan incline and put the gear selector in P.
Low battery charge level
If the battery charge level is too low, it will not bepossible to apply or release the parking brake.Connect an auxiliary battery to the vehicle if thebattery is discharged.

Replacing brake pads
Due 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.

STARTING AND DRIVING
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437

Symbols in the instrument panel
Symbol Meaning
A
B
A flashing symbol indicates that afault has been detected. See themessage in the instrument panel.
A
B
Fault in the brake system. See themessage in the instrument panel.
Information message in the instru-ment panel.
AIn Canada.BIn the US.
Related information
Activating and deactivating the parking brake(p. 434)
Start battery (p. 601)
Volvo's service program (p. 584)
Auto-hold brakes
With the Auto-hold brake function, the driver canrelease 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 activatedautomatically. 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)

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STARTING AND DRIVING
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Symbols in the instrument panel
Symbol Meaning
This symbol illuminates when thefunction is using the normal brakesto keep the vehicle stationary.
A
B
This symbol illuminates when thefunction is using the parking braketo keep the vehicle stationary.
ACanadian models.BUS models.

Related information
Activating and deactivating Auto-hold at astandstill (p. 438)
Brakes (p. 431)
Parking brake (p. 434)
Hill Start Assist (p. 439)
Activating and deactivating Auto-hold at a standstill
The Auto-hold brake function at a standstill isactivated with the button in the tunnel console.
–Press the button in the tunnel console toactivate or deactivate the function.
> The indicator light in the button will illumi-nate when the function is activated. Thefunction will remain active the next timethe vehicle is started.

When shutting off
If the function is active and holding thevehicle stationary using the normalbrakes (A symbol lit), the brake pedalmust be depressed while pressing thebutton 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. 437)

STARTING AND DRIVING
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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 brakepedal in the brake system for several secondsafter the brake pedal has been released.
This temporary braking effect is released after afew seconds or when the driver begins driving.
Hill Start Assist is available even if the Auto-holdbrake function is switched off.

Related information
Auto-hold brakes (p. 437)
Brakes (p. 431)
Braking assist after a collision
In a collision in which the activation level isreached 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 areactivated during braking. When the vehicle hasstopped, 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 riskof being hit by passing traffic, the driver can over-ride the system by depressing the acceleratorpedal.
This function assumes that the brake system isintact after a collision.
Brake assist is part of the Rear Collision Warningand Blind Spot Information safety systems.
Related information
Rear Collision Warning (p. 346)
BLIS* (p. 347)
Brake functions (p. 430)

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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 nextto the gear selector.
Select P when the vehicle is parked or when star-ting the engine. The vehicle must be stationarywhen Park is selected.
To move to another gear from Park, the brakepedal must be depressed and the ignition inmode II.
When parking – apply the parking brake beforeshifting to Park.
WARNING
Always apply the parking brake when parkingon an incline. Selecting a gear or putting theautomatic 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 positionbefore the vehicle can be locked and thealarm set.
Help functions
The system will automatically shift to P:
if the ignition is switched off while D or R isselected.
if the driver unbuckles the seat belt andopens the driver's door while the vehicle isrunning with the gear selector in a gear otherthan P.
To park a vehicle with an unbuckled seat belt andopen door – end P mode by shifting to R or Dagain.
The system will not automatically shift to P if theignition is switched off while the gear selector isin the neutral position (N). This is to make it pos-sible to wash the vehicle in an automatic carwash in which the vehicle is pulled forward onrolling wheels.
Reverse - R
Select R when backing up. The vehicle must bestationary when Reverse is selected.

Neutral - N
No gear is selected and the engine can bestarted. Apply the parking brake if the vehicle isstationary with the gear selector in N.
To move the gear selector from Neutral toanother gear, the brake pedal must be depressedand 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 movedfrom R to D.