2008 VOLVO S80 service

NOTE
If you do not receive confirmation when locking the vehicle, check whether a door or the trunk is ajar, or if this
feature has been turned off in the menu.
This function can be activated or deactivated under Car settings
Light settings Lock confirmation, light , or Car
settings
Light settings Unlock confirmation, light . See page 123 for a description of the menu system.
Immobilizer (start inhibitor)
Each of the keys supplied with your vehicle contains a coded transponder. The code in the key is transmitted to an
antenna in the ignition slot where it is compared to the code stored in the start inhibitor module. The vehicle will start
only with a properly coded key. If you misplace a key, take the other keys to a trained and qualified Volvo service
technician for reprogramming as an antitheft measure.
CAUTION
Never use force when inserting the remote key in the ignition slot. The vehicle cannot be started if the transponder is
damaged.
USA -FCC ID: LTQWFS 125VO
This device complies with part 15 of the FCC rules. Operation is subject to the following condition: (1) This device
may not cause harmful interference, and (2) this device must accept any interference received, including interference
that may cause undesired operation.
54 02 Locks and alarm
Remote key and key blade
Canada-IC: 3659A-WFS125VO
Operation is subject to the following conditions: (1) this device may not cause interference, and (2) this device must
accept any interference, including interference that may cause undesired operation of the device.
See page 107
for information on starting the vehicle.
Replacing the battery in the remote key

Information button
Indicator lights
Pressing the information button
provides certain information about the vehicle with the help of the indicator lights
.
Using the information button
1. Press the information button
.
2. All of the indicator lights
will flash sequentially for approximately 7 seconds to indicate that the PCC is receiving
information from the vehicle. If any of the buttons are pressed during this 7-second period, transmission of
56 02 Locks and alarm
Remote key and key blade
information to the PCC will be interrupted.
NOTE
If none of the indicator lights flash when the information button has been pressed several times from different places
in relation to the vehicle, contact an authorized Volvo service technician.
The indicator lights
provide information according to the illustration below.
Steady green light: the vehicle is correctly locked.
Steady yellow light: the vehicle is not locked.
Steady red light: the alarm has been triggered.

By utilizing the remote key with the key blade removed, the valet locking feature enables you to block access to the
trunk and glove compartment for e.g., valet parking or when the vehicle is brought to the retailer for service.
With the valet locking function activated:
The vehicle's doors can be locked or unlocked with the remote
The engine can be started
The glove compartment cannot be unlocked
Access to the trunk is blocked (the trunk lid cannot be unlocked or opened with the remote, and the rear seat
backrests cannot be lowered
Activating the valet locking function
1. Remove the key blade from the remote control.
2. Turn the key blade 180° clockwise in the glove compartment lock to lock the glove compartment and disconnect the
trunk lock from the central locking system. Valet lock activated will appear in the information display.
Deactivating the valet locking function
Turn the key blade 180° counterclockwise in the glove compartment lock to deactivate valet locking.
See page 64
for information on locking the glove compartment normally, without activating the valet parking function.
59 02 Locks and alarm
Remote key and key blade
Replacing the battery in the remote key

Volvo service technician.
NOTE
Do not attempt to repair any of the components in the alarm system yourself. This could affect the insurance policy
on the vehicle.
The alarm indicator light
The status of the alarm system is indicated by the indicator light on the dashboard (see illustration):
Indicator light off - the alarm is not armed
The indicator light flashes at one -second intervals - the alarm is armed
The indicator light flashes rapidly before the remote key is inserted in the ignition slot - the alarm has been
triggered.
Arming the alarm
Press the Lock button on the remote key. One long flash of the turn signals will confirm that the alarm is armed.
Alarm confirmation settings can be changed under Car settings
Lock settings Keyless entry . See page 123 for a
description of the menu system.
USA FCC ID: MAYDA 5823(3)
This device complies with part 15 of the FCC rules. Operation is subject to the following conditions: (1) This device
may not cause harmful interference, and (2) this device must accept any interference received, including interference
that may cause undesired operation.
Canada IC: 4405A-DA 5823(3)
Movement sensor DA5823 by Dynex Operation is subject to the following conditions: (1) this device may not cause
interference, and (2) this device must accept any interference, including interference that may cause undesired
operation of the device.
68 02 Locks and alarm
Alarm
Disarming the alarm

may need correcting. When this happens, please have your vehicle checked by a trained and qualified Volvo service
technician as soon as possible.
A malfunction indicator (CHECK ENGINE) light may have many causes. Sometimes, you may not notice a change in
your car's behavior. Even so, an uncorrected condition could hurt fuel economy, emission controls, and drivability.
Extended driving without correcting the cause could even damage other components in your vehicle.
Canadian models are equipped with this symbol:
Anti-lock Brake System (ABS) warning light
If the warning light comes on, there may be a malfunction in the ABS system (the standard braking system will still
function). Check the system by:
1. Stopping in a safe place and switching off the ignition.
76 03 Your driving environment
Instruments and controls
2. Restart the engine.
3. If the warning light goes off, no further action is required.
If the warning light remains on, the vehicle should be driven to a trained and qualified Volvo service technician for
inspection. See page 113
for additional information.
Canadian models are equipped with this symbol:
Rear fog light
This symbol indicates that the rear fog light (located in the driver's side tail light cluster) is on.
Stability system
This indicator symbol flashes when the DSTC (Dynamic Stability and Traction Control system) is actively working to
stabilize the vehicle. See page 151
for more detailed information.
Tire pressure monitoring system (TPMS) - option
This symbol illuminates to indicate that tire pressure in one or more tires is low. See page 242
for detailed information.
Low fuel level
When this light comes on, there are approximately 2.1 US gallons (8 liters) of fuel remaining in the tank.
Information symbol
The information symbol illuminates and a text message is displayed if a fault is detected in one of the vehicle's
systems. The message can be erased and the symbol can be turned off by pressing the READ button (see page 124
for
information) or this will take place automatically after a short time (the length of time varies, depending on the
function affected).
The information symbol may also illuminate together with other symbols.
High beam indicator

This symbol illuminates when the high beam headlights are on, or if the high beam flash function is used.
Left turn signal indicator
Right turn signal indicator
NOTE
Both turn signal indicators will flash when the hazard warning flashers are used.
If either of these indicators flash faster than normal, the direction indicators are not functioning properly.
Indicator and warning symbols
Low oil pressure
If the light comes on while driving, stop the vehicle, stop the engine immediately, and check the engine oil level. If the
oil level is normal and the light stays on after restart, have the vehicle towed to the nearest trained and qualified Volvo
service technician. This is normal, provided it goes off when the engine speed is increased.
Parking brake applied
This symbol illuminates when the parking brake is applied. On models
77 03 Your driving environment
Instruments and controls
equipped with the electric parking brake, this symbol flashes while the brake is being applied and then glows steadily.
A flashing symbol means that a fault has been detected. See the message in the information display.
Canadian models are equipped with this symbol:
NOTE

This symbol also comes on when the mechanical parking brake is only slightly applied.
Airbags - SRS
If this light comes on while the vehicle is being driven, or remains on for longer than approximately 10 seconds after
the vehicle has been started, the SRS system's diagnostic functions have detected a fault in a seat belt lock or
pretensioner, a front airbag, side impact airbag, and/or an inflatable curtain. Have the system(s) inspected by a trained
and qualified Volvo service technician as soon as possible.
Seat belt reminder
This symbol comes on for approximately 6 seconds if the driver has not fastened his or her seat belt.
Generator not charging
This symbol comes on during driving if a fault has occurred in the electrical system. Contact an authorized Volvo
workshop.
Engine temperature
Engine overheating can result from low oil or coolant levels, towing or hard driving at high heat and altitude, or
mechanical malfunction. Engine overheating will be signaled with text and a red warning triangle in the middle of the
instrument display. The exact text will depend on the degree of overheating. It may range from " HIGH ENGINE
TEMP - SLOW DOWN " to "HIGH ENGINE TEMP - STOP ENGINE ." If appropriate, other messages, such as
" COOLANT LEVEL LOW " will also be displayed. If your engine does overheat so that you must stop the engine,
always allow the engine to cool before attempting to check oil and coolant levels.
Fault in brake system
If this symbol lights, the brake fluid level may be too low. Stop the vehicle in a safe place and check the level in the
brake fluid reservoir, see page 211
. If the level in the reservoir is below MIN , the vehicle should be transported to an
authorized Volvo workshop to have the brake system checked.
If the brake and ABS symbols come on at the same time, there may be a fault in the brake force distribution system.
1. Stop the vehicle in a safe place and turn off the engine.
2. Restart the engine.
If both symbols extinguish, continue driving.
If the symbols remain on, check the level in the brake fluid reservoir. See page 211. If the brake fluid level is
normal but the symbols are still lit, the vehicle can be driven, with great care, to an authorized Volvo workshop to
have the brake system checked.
If the level in the reservoir is below MIN , the vehicle should be transported to an authorized Volvo workshop to
have the brake system checked.
WARNING
If the fluid level is below the MIN mark in the reservoir or if a warning message is displayed in the text window:
DO NOT DRIVE. Have the vehicle towed to a trained and qualified Volvo service technician and have the brake
system inspected.
If the ABS and Brake system lights are on at the same time, there is a risk of reduced vehicle stability.
78 03 Your driving environment
Instruments and controls

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