
Insert the first new battery with the + side upward.
Insert the plastic spacer over the battery.
Insert the second new battery on top of the plastic spacer, with the + side downward.
Re-assembling the remote key
1. Press the remote key's cover into place.
2. Hold the remote control with the slot for the key blade up.
3. Carefully slide the key blade into its groove.
4. Gently press the key blade in the groove until it clicks into place.
Old batteries should be properly recycled.
60 02 Locks and alarm
Keyless drive
Keyless drive (models with Personal Car Communicator only)
Keyless locking and unlocking
This system makes it possible to unlock and lock the vehicle without having to press any buttons on the Personal Car
Communicators (PCC). It is only necessary to have a keyless drive remote control in your possession to operate the
central locking system.
NOTE
The buttons on the keyless drive remote control can also be used to lock and unlock the vehicle. See page 54
for
more information.
Both of the PCCs provided with the vehicle have the keyless function, and additional ones can be ordered. The system
can accommodate up to six PCCs.
The red rings in the illustration indicate the area around the vehicle covered by the keyless drive antennas.
Unlocking the vehicle
A keyless drive remote control must be on the same side of the vehicle as the door to be opened, and be within 5
feet (1.5 meters) of the lock or the trunk opening control (see the shaded areas in the illustration).

Pull a door handle to unlock and open the door or press the trunk opening control on the trunk lid.
The number of doors that are unlocked at the same time can be set in the vehicle's menu system, under Car settings
Lock settings Keyless entry. See page 123 for a description of the menu system.
NOTE
If the PCC does not function normally (weak battery, etc.), the vehicle can be unlocked with the detachable key
blade. See page 57
.
Locking the vehicle
The doors and the trunk can be locked by pressing the lock button in any of the outside door handles.
NOTE
On keyless drive vehicles, the gear selector must be in the Park ( P) position and the ignition must be switched off
before the doors/trunk can be locked.
Keyless drive remote control and driver's seat/door mirror memory
When you leave the vehicle with a PCC in your possession and lock any door, the position of the driver's seat will
be stored in the seat's memory.
The next time a door is opened by a person with the same PCC in his/her possession, the driver's seat and door
mirrors will automatically move to the position that they were in when the door was most recently locked.
NOTE
If several people carrying PCCs approach the vehicle at the same time, the driver's seat and door mirrors will assume
the positions they were in for the person who opens the driver's door.
61 02 Locks and alarm
Keyless drive
See also page 83 for information on adjusting and storing the seat's position in the seat memory.
Keyless drive information messages
If anyone leaves the vehicle with the only keyless drive remote control in his or her possession while the ignition is
switched on, a message will be shown in the information display and an audible signal will sound.
NOTE
This message will only be displayed if the start control is in mode I or II.
The message will be erased from the display and the audible signal will stop when the PCC has been returned to the
vehicle and one of the following has occurred:
A door has been opened and closed
The PCC has been inserted in the ignition slot
The READ button (see page 124 for the location of this button) has been pressed.

The S80 is equipped with a florescent handle on the inside of the trunk lid, which can be used in an emergency
situation to open the trunk from the inside. Pull the handle down to release the trunk lid. After use, the handle must be
pushed back into its original position before the trunk can be closed.
This handle is not intended to be used to anchor the trunk lid when long loads are being transported.
66 02 Locks and alarm
Locks
WARNING
Keep vehicle doors and trunk locked and keep keys out of a child's reach. Unsupervised children could lock
themselves in an open trunk and risk injury. Children should be taught not to play in vehicles.
On hot days, the temperature in the trunk or vehicle interior can rise very quickly. Exposure of people to these
high temperatures for even a short period of time can cause heat-related injury or death. Small children are
particularly at risk.
67 02 Locks and alarm
Alarm
The alarm system
The alarm is automatically armed whenever the vehicle is locked with the remote key or optional Personal Car
Communicator.
When armed, the alarm continuously monitors a number of points on the vehicle. The following conditions will trigger
the alarm:
The hood is forced open.
The trunk is forced open.
A door is forced open.
The ignition slot is tampered with
An attempt is made to start the vehicle with a non-approved key (a key not coded to the car's ignition).
If there is movement in the passenger compartment (if the vehicle is equipped with the accessory movement sensor).
The vehicle is lifted or towed (if the vehicle is equipped with the accessory inclination sensor)
The battery is disconnected (while the alarm is armed).
The siren is disconnected when the alarm is disarmed.
A message will appear in the information display if a fault should occur in the alarm system. Contact an authorized

Press the Unlock button on the remote key. Two short flashes from the car's direction indicators confirm that the alarm
has been deactivated and that all doors are unlocked.
Turning off (stopping) the alarm
If the alarm is sounding, it can be stopped by pressing the Unlock button on the remote control or by inserting the
remote key in the ignition slot. Two short flashes from the car's direction indicators confirm that the alarm has been
turned off.
Other alarm-related functions
Automatic re-arming
If the doors are unlocked, the locks will automatically reengage (re-lock) and the alarm will re-arm after 2 minutes
unless a door or the trunk has been opened.
Audible/visual alarm signal
An audible alarm signal is given by a battery powered siren. The alarm cycle lasts for 30 seconds.
The visual alarm signal is given by flashing all turn signals for approximately 5 minutes or until the alarm is turned
off.
Remote key not functioning
If the remote key is not functioning properly, the alarm can be turned off and the vehicle can be started as follows:
1. Open the driver's door with the key blade. This will trigger the alarm.
2. Insert the remote key into the ignition slot. This will turn off the alarm.
69 02 Locks and alarm
Alarm
Reduced alarm function
Turning off the accessory alarm sensor(s)
In certain situations it may be desirable to turn off the accessory inclination and movement alarm sensors if, for
example, you drive your vehicle onto a ferry where the rocking of the boat could trigger the alarm or if a pet is left in
the vehicle with the doors locked.
Press the button shown in the illustration above (within 1 minute after the ignition has been switched off).
A message will be displayed for 10 seconds or until the vehicle is locked, indicating that the sensors are disconnected.

Insert the remote key in the ignition 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 moving, 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.
NOTE
During towing, ignition mode II should be used so that the lighting can be switched on.
81 03 Your driving environment
Ignition modes
Functions with timer
The audio system can be operated without a key for 15 minutes at a time by pressing the POWER button. The power
windows work for several minutes after the key has been removed, although not after the door has been opened.
NOTE
Use the POWER button for the audio system when the engine is not running to avoid discharging the battery.

Operating
Manual up/down
Auto up/down.
All power windows can be operated using the control panel in the driver's door. The control panels in the other doors
only operate the window in the respective doors.
For the power windows to function, the ignition must be in at least mode I . When the vehicle has been running, the
power windows can be operated for several minutes after the remote key has been removed from the ignition slot, or
until a door has been opened.
NOTE
Movement of the windows will stop if they are obstructed in any way.
To reduce buffeting wind noise if the rear windows are opened, also open the front windows slightly
Manual up/down
Move one of the controls up/down gently. The power windows move up/down as long as the control is held in
position.
Auto up/down
Move one of the controls up/down as far as possible and release it. The window will open or close completely.
Resetting
If the battery has been disconnected, the auto open function must be reset so that it will work properly.
1. Gently raise the front section of the button to close the window and hold it for one second.
2. Release the button briefly.
3. Raise the front section of the button again for one second.
98 03 Your driving environment
Power windows
Laminated glass (option on certain markets only)

remote control is in the passenger's compartment). It is activated when the ignition is switched off and the driver's door is opened.
109 03 Your driving environment
Starting the engine
Jump starting
Follow these instructions to jump start your vehicle's dead battery or to jump start another vehicle's dead battery using
your vehicle. If the 12-volt auxiliary battery to be used is in another vehicle, check that the vehicles are not touching to
prevent premature completion of a circuit. Be sure to follow jump starting instructions provided for the other vehicle.
To jump start your vehicle:
1. Switch off the ignition (set the ignition to mode 0, see page 80
).
2. First connect the red jumper cable to the auxiliary battery's positive (+) terminal
.
3. Fold back the cover over the positive (+) terminal on your vehicle's battery
, marked with a "+" sign, located
under a folding cover.
4. Connect the black jumper cable to the auxiliary battery's negative (-) terminal
and to the ground point in your
vehicle's engine compartment (right engine mount at the top, on the outer screw)
.
5. Start the engine in the assisting vehicle, then start the engine in the vehicle with dead battery.
6. After the engine has started, first remove the negative (-) terminal jumper cable (black). Then remove the positive
(+) terminal jumper cable (red).
WARNING
PROPOSITION 65 WARNING!
Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the state of
California to cause cancer and reproductive harm. Wash hands after handling.
CAUTION
Connect the jumper cables carefully to avoid short circuits with other components in the engine compartment.
WARNING

Do not connect the jumper cable to any part of the fuel system or to any moving parts. Avoid touching hot
manifolds.
Batteries generate hydrogen gas, which is flammable and explosive.
Battery fluid contains sulfuric acid. Do not allow battery fluid to contact eyes, skin, fabrics or painted surfaces. If
contact occurs, flush the affected area immediately with water. Obtain medical help immediately if eyes are affected.
Never expose the battery to open flame or electric spark.
Do not smoke near the battery.
Failure to follow the instructions for jump starting can lead to injury.
110 03 Your driving environment
Transmission
Automatic transmission
Depress the button on the front of the gear selector knob to move the gear selector between the R , N, D, and P
positions.
The gear selector can be moved freely between the Geartronic (manual shifting) and Drive ( D) positions while driving.
Park position (P)
Select the P position when starting or parking.
1The information display (see page 74) shows the gear selector's position or the selected gear by displaying the following: P, R, N, D, 1, 2, 3, 4, 5,
or 6.
Keylock
To remove the remote key from the ignition slot, the gear selector must be in the P position. The remote key is locked
in the slot in all other positions.
Shiftlock
When P has been selected, the transmission is mechanically blocked in this position. The brake pedal must be
depressed before the gear lever can be moved from the P position.
Always apply the parking brake when the vehicle is parked, see page 116
. If the vehicle is equipped with the optional
electric parking brake, press the control to apply the brake, see page 116
.
CAUTION