1998 Mercury Mountaineer key

Replacing the battery
The transmitter is powered by one
coin type three-volt lithium battery
CR2032 or equivalent. Typical
operating range will allow you to
be up to 10 meters (33 feet) away
from your vehicle. A decrease in
operating range can be caused by:
²battery weakness due to time
and use
²weather conditions
²nearby radio towers
²structures around the vehicle
²other vehicles parked next to
the vehicle
To replace the battery:
1. Twist a thin coin between the
two halves of the transmitter near
the key ring. DO NOT TAKE THE
FRONT PART OF THE
TRANSMITTER APART.
2. Place the positive (+) side of
new battery in the same
orientation. Refer to the diagram
inside the transmitter unit.
3. Snap the two halves back
together.
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Replacing lost transmitters
Take all your vehicle's transmitters
to your dealer for reprogramming
if:
²a transmitter is lost or
²you want to purchase additional
transmitters (up to four may be
programmed).
To reprogram the transmitters,
place the key in the ignition and
switch from OFF to ON five times
in rapid succession (within 10
seconds). After doors lock/unlock,
press any button on all
transmitters (up to four). When
completed, switch the ignition to
OFF.
All transmitters must be
programmed at the same time.
Reprogramming transmitters
To reprogram all transmitters,
place the key in the ignition and
switch from OFF to ON eight times
in a row (within 10 seconds). After
doors lock/unlock, press any
button on all transmitters (up to
four). When completed, switch the
ignition to OFF.
All transmitters must be
reprogrammed at the same time.
Illuminated entry
The interior lamps and the puddle
lamps (located on the bottom of
the exterior rear view mirrors)
illuminate when the remote entry
system is used to unlock the
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49

door(s) or sound the personal
alarm.
The system automatically turns off
after 25 seconds or when the
ignition is turned to the START or
ACC position. The dome lamp
switch (if equipped) mustnotbe
set to the OFF position for the
illuminated entry system to
operate.
The inside lights will not turn off
if:
²they have been turned on with
the dimmer control or
²any door is open.
Battery saver will shut off the
interior lamps 45 minutes after the
last door is closed.
Autolock
Autolock is a feature that will
automatically lock all doors when:
²all vehicle doors, liftgate and
liftgate window are fully closed
²the ignition key is in the ON
position
²you shift into or through R
(Reverse)
²the brake pedal is released
The autolock feature repeats when:
²any door is opened and then
closed
²the brake pedal is released
Deactivating autolock
Before following the activation or
deactivation procedures, make sure
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50

that the anti-theft system is not
armed, the ignition is OFF and all
vehicle doors and liftgate window
are closed.
1. Enter the 5 digit entry code.
2. Press and release the 3/4 control
while holding the 7/8 control.
3. Release the 7/8 control.
The horn will chirp once if
autolock was deactivated or twice
(one short and one long chirp) if
autolock was activated.
To reactivate autolock, repeat
steps 1 through 4.
Autolock can also be activated or
deactivated using the following
procedure:
You must complete steps 1 through
5 within 30 seconds or the
procedure will have to be
repeated. If the procedure needs
to be repeated, you must wait
30 seconds.
1. Turn the ignition key to ON.
2. Press the power door unlock
control three times.
3. Turn the ignition key from ON
to OFF.
4. Press the power door unlock
control three times.
5. Turn the ignition key back to
ON. The doors will lock and
unlock.
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6. Press the power door unlock
switch. The horn will chirp once
upon successful toggling of the
Autolock feature.
7. Turn ignition to OFF. The horn
will chirp to confirm procedure is
complete.
Keyless entry system
(if equipped)
With the keyless entry keypad, you
can:
²lock or unlock the vehicle doors
without using the key
²arm and disarm the perimeter
alarm system (if equipped)
²activate/deactivate the autolock
feature
See alsoRemote entry systemand
Perimeter alarm systemin this
chapter for more information.
Your vehicle has a factory-set 5
digit code that operates the
keyless entry system. You can also
program your own 5 digit personal
entry code.
The factory-set code is located:
²on the owner's wallet card in the
glove compartment
²taped to the computer module
When pressing the controls on the
keyless entry keypad, press the
middle of the buttons to ensure a
good activation.
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Programming your own
personal entry code
1. Enter the factory-set code
(keypad will illuminate when
pressed).
2. Press the 1/2 control within five
seconds of step 1.
3. Enter your personal 5 digit
code. Enter each digit within five
seconds of the previous one.
Do not set a code that includes
five of the same number or
presents them in sequential order.
Thieves can easily figure out these
types of codes.
Your personal code does not
replace the permanent code that
the dealership gave you. You can
use either code to unlock your
vehicle. If a second personal code
is entered, the module will erase
the first personal code in favor of
the new code.
If you wish to erase your personal
code, use the following
instructions:
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53

Erasing personal code
1. Enter the factory-set code.
2. Press 1/2 within five seconds of
step one.
3. Press the 7/8 and 9/0 controls at
the same time within five seconds
of step two.
The system will now only respond
to the factory-set code.
Unlocking the doors with the
keyless entry system
To unlock the driver's door, enter
either the factory-set code or
personal code (each digit pressed
within 5 seconds of the prior
digit). The interior lamps will
illuminate.
To unlock all doors, enter the
factory-set code or personal code
(driver door unlocks) and press
the 3/4 control within 5 seconds.
Locking the doors with the
keyless entry system
To lock all the doors, press 7/8 and
9/0 at the same time. It is not
necessary to first enter the keypad
code.
This will arm your perimeter alarm
system (if equipped). Refer to
Perimeter alarm systemin this
chapter for more information.
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Operating your perimeter alarm
system (if equipped) from the
keyless entry pad
The keyless entry system arms by
pressing 7/8 and 9/0.
To disarm or reset a triggered
alarm, enter the five digit code.
All doors must be fully closed for
the alarm system to arm. Refer to
thePerimeter alarm system
section, if equipped, in this chapter
for more details.
PERIMETER ALARM SYSTEM
Arming the system
When armed, this system will help
protect your vehicle from
unauthorized entry. When
unauthorized entry occurs, the
system will flash the headlamps,
parking lamps and the theft
indicator lamp and will chirp the
horn.
The system is ready to arm
whenever the ignition is turned
OFF. Any of the following actions
will prearm the alarm system:
²Press the remote entry lock
control
²Open a door and press the
power door lock control to lock
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