2010 VOLVO S80 brake light

03 Your driving environment
Ignition modes
03
80* Option/accessory, for more information, see Introduction.
Inserting and removing the remote key
Ignition slot with remote key and START/STOP
ENGINE button.
Inserting the remote keyHolding the end of the remote key with the
base of the key blade, insert the remote key
into the ignition slot, with the buttons facing up,
as shown in the illustration.
CAUTION
Foreign objects in the ignition slot can
impair function or damage the lock.
Removing the remote keyThe remote key can be removed from the igni-
tion slot by pressing the key in lightly. It will
then be ejected slightly and can be removedfrom the slot. The gear selector must be in
position P (Park).
Ignition modesThe various ignition modes are accessed with
the remote key in the ignition slot.
Posi-
tionFunction
0Odometer, clock and tempera-
ture gauge are illuminated. Steer-
ing lock is deactivated. The audio
system can be used.
IMoonroof*, power windows,12-
volt sockets, navigation system*,
climate system blower, ECC,
windshield wipers can be used.
IIThe headlights come on. Warn-
ing/indicator lights come on for
5 seconds. All equipment oper-
ates apart from heated seats and
rear window defroster, which
only work when the engine is run-
ning.
IIIThe starter motor will operate
until the engine has started.
NOTE
The brake pedal must not be depressed
when accessing ignition modes I or II.
Ignition mode 0
Insert the remote key in the ignition slot and
press it lightly. It will be drawn into the slot.
Ignition mode I
Press the remote key into the ignition slot
and press START/STOP ENGINE.
Ignition mode II
Press the remote key into the ignition slot
and press START/STOP ENGINE for
approx. 2 seconds.
Ignition mode III (engine start)Start the engine, see page 107.
Stopping the engine
Press START/STOP ENGINE. (If the
engine is running and the vehicle is mov-
ing, keep the button depressed until the
engine stops).
Return to ignition mode 0
Press START/STOP ENGINE to return
from I, II, or III to ignition mode 0.

03 Your driving environment
Lighting
03
92
Brake lights
The brake lights come on automatically when
the brakes are applied.
Emergency brake lights (EBL)Emergency Brake Lights, EBL, activate in the
event of sudden braking or if the ABS system
is activated. This function causes an additional
taillight on each side of the vehicle to illuminate
to help alert vehicles traveling behind.
The EBL function activates if:
•The ABS system activates for more than
approximately a half second
•In the event of sudden braking while the
vehicle is moving at speeds above approx-
imately 6 mph (10 km/h)
When the vehicle has come to a stop, the brake
lights and additional taillights remain on for as
long as the brake pedal is depressed or until
braking force on the vehicle is reduced.
Front fog lights
G014402
Button for front fog lights
The front fog lights can be switched on
together with high/low beams or the parking
lights. However, the fog lights switch off and
remain off while the high beams are on.

Press the button to switch the fog lights on/
off. The light in the button comes on when
the fog lights are on.
NOTE
Regulations regarding the use of the front
fog lights may vary, depending on where
you drive.
Rear fog light
G014403
Button for rear fog light
The single rear fog light is located in the driver's
side taillight cluster. The rear fog light will only
function in combination with the high/low
beam headlights or the optional front fog lights.

Press the button to switch the rear fog light
on/off.
> The rear fog light indicator symbol
on the instrument panel and the
light in the button come on when the
rear fog light is switched on.

03 Your driving environment
Starting the engine
03

* Option/accessory, for more information, see Introduction.107 Start
Ignition switch with remote key inserted (see
page 80 for more information on ignition modes)
WARNING
Before starting the engine:
•Fasten the seat belt.
•Check that the seat, steering wheel and
mirrors are adjusted properly.
•Make sure the brake pedal can be
depressed completely. Adjust the seat
if necessary.
1. Insert the remote key into the ignition slot
with the buttons upward and the metallic
key blade pointing outward (not inserted
into the slot)
1.
G033763
2. Push lightly on the remote key. It will be
automatically drawn into the ignition slot in
the correct position.
3
G033764
3.
Depress the brake pedal2. Press and
release the START/STOP ENGINE button.
The autostart function will operate the
starter motor until the engine starts.
The starter motor operates for a maximum
of 10 seconds. If the engine has not
started, repeat the procedure.
NOTE
Keyless drive*
To start a vehicle equipped with the keyless
drive feature, one of the remote keys must
be in the passenger compartment. Follow
the instructions in step 3 to start the vehicle.
1On vehicles with the optional keyless drive, it is only necessary to have a remote key in the passenger’s compartment.2If the vehicle is moving, it is only necessary to press the START/STOP ENGINE button to start the vehicle.

03 Your driving environment
Brakes
03
114
Brake system
The brake system is a hydraulic system con-
sisting of two separate brake circuits. If a prob-
lem 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 run-
ning. Never let the vehicle roll to a stop with the
engine switched off.
If the power brakes are not working, consider-
ably higher pressure will be required on the
brake pedal to compensate for the lack of
power assistance. This can happen for exam-
ple 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 occa-
sionally 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 systemThe brakes will be subject to severe strain
when driving in mountains or hilly areas, or
when towing a trailer. Vehicle speed is usuallyslower, 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 systemThe 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 auto-
matically modulated in order to help prevent
lockup that could lead to a skid.
The system performs a brief self-diagnostic
test when the engine has been started and
driver releases the brake pedal. Another auto-
matic test may be performed when the vehicle
first reaches a speed of approximately 25 mph
(40 km/h). The brake pedal will pulsate several
times and a sound may be audible from the
ABS control module. This is normal.
Cleaning the brake discsCoatings 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 brak-

03 Your driving environment
Parking brake
03
116
Electric parking brake
An electric parking brake has the same func-
tion 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 voltageIf 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.
Applying the electric parking brake
G021354
Parking brake control
1. Press firmly on the brake pedal.
2. Push the control.
3. Release the brake pedal and ensure that
the vehicle is at a standstill.
4. When the vehicle is parked, the gear selec-
tor 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.

04 Comfort and driving pleasure
Collision warning with Auto-brake*
04

* Option/accessory, for more information, see Introduction.161 Introduction
Collision Warning with Auto-brake is designed
to assist the driver if there is a risk of a collision
with the vehicle ahead, if that vehicle is at a
standstill or moving in the same direction as
your vehicle. Auto-brake helps reduce the col-
lision speed.
Collision Warning consists of the following
three functions:
•Collision warning warns the driver of the
imminent risk of a collision.
•Brake support helpsthe driver brake effi-
ciently in a critical situation.
•Auto-brake brakes the vehicle automati-
cally if a collision cannot be avoided.
WARNING
The auto-brake function cannot prevent a
collision but instead is intended to reduce
speed at the moment of impact. For full
braking effect, driver must apply the brakes.
WARNING
•The collision warning system does not
work in all driving situations, and traffic,
weather and road conditions.
•The collision warning system is not
designed to detect pedestrians.
•Warnings are only provided when the
risk of collision is high. The Function
section provides information about lim-
itations that the driver must be aware of
before use.
•Never wait for a collision warning. This
system is designed to be a supplemen-
tary driving aid. It is not, however,
intended to replace the driver's atten-
tion and judgement. The driver is
responsible for maintaining a safe dis-
tance and speed, even when the colli-
sion warning system is in use.
•Maintenance of the collision warning
system components must only be per-
formed by a trained and qualified Volvo
technician.
Function
G017382
Function overview
Visual warning signal, collision risk
Radar sensor
Camera
Collision warningThe radar sensor and the camera work
together to detect stationary vehicles and vehi-
cles that are moving in the same direction as
your vehicle. If there is a risk of collision, the
driver is alerted by a flashing red warning light
and an audible warning signal. Collision warn-
ing is active at speeds above 5 mph (7 km/h).
Brake supportIf the risk of collision continues to increase after
the collision warning has been given, brake

04 Comfort and driving pleasure
Collision warning with Auto-brake*
04
162* Option/accessory, for more information, see Introduction.
support is activated. Brake support prepares
the brake system to react quickly, and the
brakes are applied slightly. This may be expe-
rienced as a light tug.
If the brakes are applied quickly, full braking
effect will be provided, even if pressure on the
brake pedal is light.
Auto-brakeIf a collision is imminent and the driver has not
applied the brakes, the auto-brake function is
activated without the driver pressing the brake
pedal. Limited brake force is applied to reduce
the vehicle’s speed when the collision occurs.
WARNING
The auto-brake function cannot prevent a
collision but instead is intended to reduce
speed at the moment of impact. For full
braking effect, driver must apply the brakes.
NOTE
The auto-brake function is always on and
cannot be turned off.
Operation
Some settings are controlled from the center
console via a menu system. For information on
how the menu system is used, see page 122.
On and offTo switch Collision Warning on or off, go into
the menu Car settings
Collision warning
settings and select On or Off. When the engine
is started, the setting that was selected when
it was switched off will be used.
Activating/deactivating warning signalsThe collision warning system’s audible and vis-
ual signals are activated automatically when
the engine is started if the collision warning
system is activated.
The audible warning signal can be activated/
deactivated by selecting the alternative
On or
Off in Car settingsCollision warning
settings
Warning sound.
Setting a warning distanceThis setting determines the distance at which
the visual and audible warnings are triggered.
Select
Long, Normal or Short under Car
settings
Collision warning settings
Warning distance
The warning distance determines the level of
sensitivity used by the system. The warning
distance
Long provides an earlier warning.
Begin by using Long and if the system gives
too many warnings, try changing to
Normal.
WARNING
•The setting Short should only be used
in situations where traffic is light and
moving at low speeds.
•Collision Warning alerts the driver to the
risk of a collision but this function can-
not reduce the driver’s reaction time.
•For Collision Warning to be as effective
as possible, it is recommended that Dis-
tance Alert be set to 4 or 5, see
page 174.
NOTE
•When adaptive cruise control is used,
the warning light and signal will be used
by cruise control, even if they have been
deactivated by the driver.
•In situations where traffic is moving at
considerably different speeds, or if the
vehicle ahead brakes suddenly, warn-
ings may be considered to be late, even
if the setting
Long has been selected.
Checking settingsThe current Collision Warning settings can be
checked by going into the menu system at Car
settings
Collision warning settings. See
page 122 for more information on the menu
system.

04 Comfort and driving pleasure
Collision warning with Auto-brake*
04

* Option/accessory, for more information, see Introduction.163
LimitationsStrong sunlight, reflections, extreme light con-
trasts, the use of sunglasses, or if the driver is
not looking straight ahead may make the visual
warning signal in the windshield difficult to see.
For this reason, always activate the audible
warning signal in such conditions.
NOTE
The visual warning signal may be temporar-
ily disengaged in the event of high passen-
ger compartment temperature due to strong
sunlight, etc. If this occurs, the audible
warning signal will be used, even if it has
been deactivated in the menu system.
Warnings may not appear if the distance to the
vehicle ahead is very small or if steering wheel
and pedal movements are great, for example,
due to a very active driving style.
WARNING
•In certain situations, the system cannot
provide warnings or warning may be
delayed if traffic conditions or other
external factors make it impossible for
the radar sensor or camera to detect the
vehicle ahead.
•Warnings may not be provided if the
distance to the vehicle ahead is short,
or if movements of the steering wheel/
brake pedal are great, such as during
active driving.
•The sensor system has a limited range
for stationary or slow-moving vehicles
and may therefore give delayed or no
warnings if your vehicle’s speed is
above approximately 45 mph
(70 km/h).
•Warnings for stationary or slow-moving
vehicles may not be provided in dark
conditions.
The Collision Warning system uses the same
radar sensors as Adaptive Cruise Control. For
more information on the radar sensor and its
limitations, see page 170.
If no warning is given, or if a warning is delayed,
Auto-brake will also not be provided or will be
delayed.
NOTE
If warnings are given too frequently, the
warning distance can be reduced (see
page 162. This causes the system to pro-
vide later warnings, which decreases the
total number of warnings provided.
The camera’s limitationsThe camera is used by Collision Warning with
Auto-brake, Driver Alert Control (see
page 177), and Lane Departure Warning (see
page 180).
NOTE
•To help protect the camera in very hot
conditions, it may be temporarily
switched off for approximately 15
minutes after the engine has been
started.
•Keep the section of the windshield in
front of the camera clean and free of ice,
snow, or condensation.