brake VOLVO S80 2008 Owner's Manual

Shiftlock override
If the vehicle cannot be driven, for example because of a dead battery, the gear selector must be moved from the P
position so that the vehicle can be moved
1.
Lift away the rubber mat on the floor of the storage compartment behind the center console and open the hatch.
Insert the key blade into the opening as far as possible. Press the key blade down and keep it held down. Move the
gear selector from the P position. For information on the key blade, see page 52
.
1If the battery is dead, the optional electric parking brake cannot be applied or released. Connect an auxiliary battery if the battery voltage is too
low, see page 109
.
112 03 Your driving environment
Transmission
All Wheel Drive - AWD1
Your Volvo can be equipped with permanent All Wheel Drive, which means that power is distributed automatically
between the front and rear wheels. Under normal driving conditions, most of the engine's power is directed to the front
wheels. However, if there is any tendency for the front wheels to spin, an electronically controlled coupling distributes
power to the wheels that have the best traction.
1Standard on certain models.
113 03 Your driving environment
Brakes
Brake system
The brake system is a hydraulic system consisting of two separate brake circuits. If a problem should occur in one of
these circuits, it is still possible to stop the vehicle with the other brake circuit.
If the brake pedal must be depressed farther than normal and requires greater foot pressure, the stopping distance will
be longer.
A warning light in the instrument panel will light up to warn the driver that a fault has occurred.
If this light comes on while driving or braking, stop immediately and check the brake fluid level in the reservoir.

NOTE
Press the brake pedal hard and maintain pressure on the pedal - do not pump the brakes.
WARNING
If the fluid level is below the MIN mark in the reservoir or if a brake system message is shown in the information
display: DO NOT DRIVE. Have the vehicle towed to a trained and qualified Volvo service technician and have the
brake system inspected.
Power brakes function only when the engine is running
The power brakes utilize vacuum pressure which is only created when the engine is running. Never let the vehicle roll
to a stop with the engine switched off.
If the power brakes are not working, the brake pedal must be pressed approximately five times harder than usual to
make up for the lack of power assistance. This can happen for example when towing your vehicle or if the engine is
switched off when the vehicle is rolling. The brake pedal feels harder than usual.
Water on brake discs and brake pads affects braking
Driving in rain and slush or passing through an automatic car wash can cause water to collect on the brake discs and
pads. This will cause a delay in braking effect when the pedal is depressed. To avoid such a delay when the brakes are
needed, depress the pedal occasionally when driving through rain, slush, etc. This will remove the water from the
brakes. Check that brake application feels normal. This should also be done after washing or starting in very damp or
cold weather.
Severe strain on the brake system
The brakes will be subject to severe strain when driving in mountains or hilly areas, or when towing a trailer. Vehicle
speed is usually slower, which means that the cooling of the brakes is less efficient than when driving on level roads.
To reduce the strain on the brakes, shift into a lower gear and let the engine help with the braking. Do not forget that if
you are towing a trailer, the brakes will be subjected to a greater than normal load.
Anti-lock braking system
The Anti-lock Braking System (ABS) helps to improve vehicle control (stopping and steering) during severe braking
conditions by limiting brake lockup. When the system "senses" impending lockup, braking pressure is automatically
modulated in order to help prevent lockup that could lead to a skid.
The system performs a self -diagnostic test when the engine is started and when the vehicle first reaches a speed of
approximately 12 mph (20 km/h). The brake pedal will pulsate several times and a sound may be audible from the
ABS control module. This is normal.
114 03 Your driving environment
Brakes
Cleaning the brake discs
Coatings of dirt and water on the brake discs may result in delayed brake function. This delay is minimized by
cleaning the brake linings.
Cleaning the brake pads is advisable in wet weather, prior to long-term parking, and after the vehicle has been washed.
Do this by braking gently for a short period while the vehicle is moving.
Emergency Brake Assistance

EBA is designed to provide full brake effect immediately in the event of sudden, hard braking. The system is activated
by the speed with which the brake pedal is depressed.
When the EBA system is activated, the brake pedal will go down and pressure in the brake system immediately
increases to the maximum level. Maintain full pressure on the brake pedal in order to utilize the system completely.
EBA is automatically deactivated when the brake pedal is released.
NOTE
When the EBA system is activated, the brake pedal will go down and pressure in the brake system immediately
increases to the maximum level. You must maintain full pressure on the brake pedal in order to utilize the system
completely. There will be no braking effect if the pedal is released. EBA is automatically deactivated when the brake
pedal is released.
When the vehicle has been parked for some time, the brake pedal may sink more than usual when the engine is
started. This is normal and the pedal will return to its usual position when it is released.
Symbols in the instrument panel
WARNING
If
and come on at the same time and the brake level is below the MIN mark in the reservoir or if a
brake system-related message is shown in the information display: DO NOT DRIVE. Have the vehicle towed to a
trained and qualified Volvo service technician and have the brake system inspected.
115 03 Your driving environment
Parking brake
Manual parking brake

The parking brake pedal is located under the dashboard, to the left of the brake pedal. When the brake is applied, an
indicator light illuminates in the instrument panel.
NOTE
The indicator light will light up even if the parking brake has only been partially applied.
Applying the parking brake
1. Press firmly on the brake pedal.
2. Press down pedal 1 firmly to its full extent.
3. Release the brake pedal and ensure that the vehicle is at a standstill.
4. If the vehicle rolls, the parking brake pedal must be pushed down more firmly.
5. When parking a vehicle always put the gear selector in P .
WARNING
Press down the parking brake pedal firmly to its full extent.
Parking on a hill
If the vehicle is pointing uphill, turn the front wheels so that they point away from the curb.
If the vehicle is pointing downhill, turn the front wheels so that they point toward the curb.
Releasing the parking brake
1. Press firmly on the brake pedal.
1. Pull handle
.
116 03 Your driving environment
Parking brake
Electric parking brake (option1)
An electric parking brake has the same function as a manual parking brake.
NOTE

A faint sound from the parking brake's electric motor can be heard when the parking brake is being applied. This
sound can also be heard during the automatic function check of the parking brake.
The brake pedal will move slightly when the electric parking brake is applied or released.
Low battery voltage
If the battery voltage is too low, the parking brake cannot be applied or released. Connect an auxiliary battery if the
battery voltage is too low, see page 109
.
1The electric parking brake is available as an option on certain models.
Applying the electric parking brake
1. Press firmly on the brake pedal.
2. Press the control.
3. Release the brake pedal and ensure that the vehicle is at a standstill.
4. When the vehicle is parked, the gear selector must be in position P .
The
symbol in the instrument panel flashes while the parking bake is being applied, and glows steadily when
the parking brake has been fully applied.
NOTE
In an emergency the parking brake can be applied when the vehicle is moving by holding in the control. Braking
will be interrupted when the accelerator pedal is depressed or the control is released.
An audible signal will sound during this procedure if the vehicle is moving at speeds above 6 mph (10 km/h).
Parking on a hill
If the vehicle is pointing uphill, turn the front wheels so that they point away from the curb.
If the vehicle is pointing downhill, turn the front wheels so that they point toward the curb.
117 03 Your driving environment
Parking brake
Releasing the electric parking brake

Manual release
1. Fasten the seat belt.
2. Insert the remote key in the ignition slot.
3. Press firmly on the brake pedal.
4. Pull the parking brake control.
Vehicles with Keyless drive (option)
1. Press the START/STOP ENGINE button.
2. Press firmly on the brake pedal.
3. Pull the parking brake control.
Automatic release
1. Start the engine.
2. Fasten the seat belt.
NOTE
For safety reasons, the parking brake is only released automatically if the engine is running and the driver is
wearing a seat belt.
The electric parking brake will be released immediately when the accelerator pedal is pressed and the gear selector
is in position D or P.
3. Move the gear selector to position D or R and press the accelerator pedal. The parking brake will release when the
vehicle begins to move.
Heavy load uphill
A heavy load, such as a trailer, can cause the vehicle to roll backward when the parking brake is released
automatically on a steep incline. To help avoid this:
1. Keep the electric parking brake lever pushed in with the left hand while shifting into Drive with the right.
2. While pressing the throttle pedal to pull away, release the parking brake lever only after the vehicle begins to move.
Symbols

Messages
Parking brake not fully released - A fault is preventing the parking brake from being released. Contact an authorized
Volvo workshop.
118 03 Your driving environment
Parking brake
If you drive off with this error message showing, a warning signal sounds.
Parking brake not applied - A fault is preventing the parking brake from being applied. Try to apply and release.
Contact a Volvo workshop if the message remains.
Parking brake Service required - A fault has arisen. Contact a Volvo workshop if the fault remains.
WARNING
If the vehicle must be parked before the fault has been corrected, always put the gear selector in P and turn the
wheels so that they point away from the curb if the vehicle is pointing uphill or toward the curb if it is pointing
downhill.
119 03 Your driving environment
This page left intentionally blank.

2 0 0 8
VOLVO S80
120 04 Comfort and driving pleasure
Menus and messages 122
Climate system126
Audio system134
Trip computer147
Compass149
Stability system151
Active chassis system-Four C153
Cruise control154
Adaptive Cruise Control-ACC156
Distance Alert163
Collision Warning with Auto-brake (option)166
Driver Alert System -option171
Park assist (option)176
Blind Spot Information System (option)179
Passenger compartment convenience183
121 04 Comfort and driving pleasure
122 04 Comfort and driving pleasure
Menus and messages
Center console
Certain functions are controlled from the center console via the menu system or from the optional keypad in the
steering wheel. Each function is described under its respective section.
The current menu level is shown at the top right of display in the center console.

Temporarily switching off Spin control
1. Turn the thumbwheel
until the DSTC menu is shown.
2. Hold down the RESET button
to toggle between DSTC SPIN CONTROL ON or OFF .
Messages in the information display
DSTC Temporarily OFF - system function has been temporarily reduced due to high brake disc temperature. The
function is activated automatically when the brakes have cooled.
DSTC Service required - the system has been disabled due to a fault. If this occurs:
152 04 Comfort and driving pleasure
Stability system
1. Stop the vehicle in a safe place and turn off the engine.
2. Restart the engine.
If the message remains when the engine is restarted, drive to an authorized Volvo workshop to have the system
inspected.
Symbols in the instrument panel
If the symbols
and are displayed at the same time, read the message in the information display.
If the symbol
appears alone, it may appear as follows:
If the symbol flashes, this indicates that the stability system is actively functioning to help counteract wheel spin
and/or a skid.
If the symbol remains on for approximately 2 seconds after the engine has been started, this indicates that the system
is performing a self -diagnostic test.
WARNING
The stability system is intended to help improve driving safety. It supplements, but can never replace, the driver's
judgment and responsibility when operating the vehicle. Speed and driving style should always be adapted to traffic
and road conditions.
153 04 Comfort and driving pleasure

Adjusting the set speed
After a speed has been set, it can be increased or decreased by using the
or buttons.
Press and hold down or until the vehicle reaches the desired speed. This will become the set speed when the
button is released.
Press or for approximately a half second and release the button to increase or decrease vehicle speed by
approximately 1 mph (1.6 km/h).
NOTE
A temporary increase in speed by pressing the accelerator pedal, for less than 1 minute (e.g. when passing another
car), does not affect the current cruise control setting. The vehicle will automatically return to the previously set
speed when the accelerator pedal is released.
If one of the cruise control buttons is kept depressed for more than approx. 1 minute cruise control is disengaged.
The engine must then be switched off in order to reset cruise control.
Automatic deactivation
Cruise control is automatically deactivated temporarily if one of the following occurs:
If the speed drops below approximately 20 mph (30 km/h).
When the brake pedal is depressed.
If the gear selector is moved to position N.
During wheel spin or wheel lock-up.
If the vehicle's speed is increased by using the accelerator pedal for more than 1 minute.
The currently set speed will be saved in the system's memory.
155 04 Comfort and driving pleasure
Cruise control
Temporary deactivation
The driver can temporarily deactivate cruise control by pressing 0. The saved speed is shown in brackets in the
information display.
Resume set speed
If cruise control has been deactivated temporarily, it can be reactivated by pressing
. The vehicle's speed returns to
the most recently set speed.
WARNING
There may be a significant increase in speed after the
button has been pressed.
Deactivation
Cruise control is disengaged with CRUISE , by putting the gear selector in Neutral, or by switching off the engine. The
set speed is cleared.
WARNING
Cruise control should not be used in heavy traffic or when driving on wet or slippery roads. Cruise control may not