Page 41 of 240
Replacing front parking lamp/turn signal bulbs
1. Make sure the headlamp control is in the OFF
position and open the hood.
2. At the back of the
headlamp, pull two
retainer pins up to
release the headlamp
assembly.
3. Pull headlamp
assembly forward and
rotate the bulb socket
counterclockwise and remove from lamp assembly.
4. Pull the bulb straight
out from the socket
and push in the new
bulb.
Install the new bulb in reverse order.
Replacing high-mount brakelamp bulbs
1. Make sure the
headlamp switch is in
the OFF position and
then open the trunk.
2. Inside trunk, locate
access hole under the
rear decklid.
3. Rotate the bulb
socket
counterclockwise and
pull it out of the lamp assembly.
4. Carefully pull the bulb straight out of socket.
Install the new bulb in reverse order.
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Lights
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Page 42 of 240
Replacing foglamp bulbs
1. Make sure the
headlamp switch is in
the OFF position.
2. Rotate the foglamp
bulb socket
counterclockwise and
remove from foglamp.
3. Disconnect the
electrical connector and pull the bulb straight out.
Install the new bulb in reverse order.
Replacing license plate lamp bulbs
1. Make sure the
headlamp switch is in
the OFF position and
then open trunk and
remove bulb socket
from the trunk lid by
turning it
counterclockwise.
2. Pull the bulb straight out of the socket.
Install the new bulb in reverse order.
Replacing tail lamp/backup bulbs
For bulb replacement, see a dealer or qualified
technician.
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Lights
42
Page 45 of 240

AUXILIARY POWER POINT
The power point is an
additional power
source for electrical
accessories. A power
point is located in front
of the center console
storage bin.
Do not plug optional
electrical accessories into the cigarette lighter. Use
the power point.
Do not use the power point for operating the
cigarette lighter element.
The Maximum power each power point can supply
depends on the fuse rating. For example: a 20A fuse
should supply a maximum of 240 Watts, a 15A fuse
should supply a maximum of 180 Watts and a 10A
fuse should supply a maximum of 120 Watts.
Exceeding these limits will result in a blown fuse.
Always keep the power point caps closed when not
being used.
Power outlets are designed for accessory plugs
only. Do not hang any type of accessory or
accessory bracket from the plug. Improper use
of the power outlet can cause damage not
covered by your warranty.
POWER WINDOWS
When closing
the power
windows, you should
verify they are free
of obstructions and
ensure that children
and/or pets are not in
the proximity of the
window openings.
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Driver Controls
45
Page 51 of 240

To lower the convertible top:
1. Bring vehicle to a complete stop. Engage the
parking brake. Key must be in the ON position.
2. Check the convertible top stowage compartment
behind the rear seat to be sure it is empty and ready
to receive the top.
3. Unclamp the top from the windshield header at
both the right and left sides by pulling each clamp
rearward until the hook in the windshield header is
free. The clamps are flush with the header when in
the closed position.
4. Close the windshield header clamps immediately
after disengagement, to avoid cutting the top
material and to permit installation of the vinyl boot.
5. If the top has not
been lowered for some
time and sticks to the
windshield header,
push the front of the
top up slightly with
your hand to loosen it.
6. Push the convertible
top switch on the
console in front of the
armrest and hold until
the top is completely
stored.
7. Disengage the
parking brake.
Installation of the boot (if equipped)
1. Push boot rearward
and engage boot under
the body molding at
the rear and sides.
SETPARKBRAKE
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Driver Controls
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Page 55 of 240
To open the luggage
compartment door (lid)
from within the
luggage compartment,
pull the illuminated“T”
shaped handle and
push up on the trunk
lid. The handle is
composed of a material
that will glow for hours
in darkness following
brief exposure to
ambient light.
The“T”shaped handle will be located either on the
luggage compartment door (lid) or inside the
luggage compartment near the tail lamps.
Keep vehicle
doors and
luggage compartment
locked and keep keys
and remote
transmitters out of a
child’s reach.
Unsupervised
children could lock
themselves in the
trunk and risk injury.
Children should be
taught not to play in
vehicles.
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Locks and Security
55
Page 60 of 240

Illuminated entry
The interior lamps illuminate when the remote entry
system is used to unlock the door(s) or sound the
personal alarm.
The illuminated entry system will turn off the
interior lights if:
•the ignition switch is turned to the ON position,
or
•the remote transmitter lock control is pressed, or
•after 25 seconds of illumination.
The dome lamp control (if equipped) mustnotbe
set to the OFF position for the illuminated entry
system to operate.
The inside lights will not turn off if:
•they have been turned on with the dimmer
control, or
•any door is open.
The battery saver will shut off the interior lamps 30
minutes after the ignition has been turned to the
OFF position, 10 minutes after if the last door is left
open, and 30 minutes after if the trunk is left open
or the dome lamp switch is left on.
SECURILOCKPASSIVE ANTI-THEFT SYSTEM
SecuriLockpassive anti-theft system is an engine
immobilization system. This system is designed to
prevent the engine from being started unless a
coded key programmed to your vehicleis used.
The use of the wrong type of coded key may lead to
a“no-start”condition.
Your vehicle comes with two coded keys; additional
coded keys may be purchased from your dealer. The
dealer can program your spare keys to your vehicle
or you can program the keys yourself. Refer to
Programming spare keysfor instructions on how
to program the coded key.
Note:The SecuriLockpassive anti-theft system is
not compatible with non-Ford aftermarket remote
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Locks and Security
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Page 63 of 240

1. Insert a previously
programmed coded key
into the ignition.
2. Turn the ignition
from the 3 (OFF)
position to the 4 (ON)
position. Keep the
ignition in the 4 (ON)
position for at least one second, but no more than
10 seconds.
3. Turn the ignition to the 3 (OFF) position, and
remove the coded key from the ignition.
4. Within ten seconds of removing the previously
programmed coded key, insert the other previously
programmed coded key into the ignition.
5. Turn the ignition from the 3 (OFF) position to the
4 (ON) position. Keep the ignition in the 4 (ON)
position for at least one second but not more than
10 seconds.
6. Turn the ignition to the 3 (OFF) position, and
remove the second key from the ignition.
7. Within twenty seconds of removing the previously
programmed coded key, insert the unprogrammed
key (new/valet key) into the ignition.
8. Turn the ignition from the 3 (OFF) position to the
4 (ON) position. Keep the ignition in the 4 (ON)
position for at least one second.
9. Your new unprogrammed key is now programmed.
If the key has been successfully programmed it will
start the vehicle’s engine and the theft indicator light
will illuminate for three seconds and then go out. If
the key was not successfully programmed, it will not
start your vehicle’s engine and the theft indicator
light will flash on and off rapidly. If failure repeats,
bring your vehicle to your dealer to have the new
key(s) programmed.
To program additional new unprogrammed key(s),
repeat this procedure from step 1 for each additional
key.
3
2
1
5
4
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Locks and Security
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Page 73 of 240

Disconnect the combination lap/shoulder belt and
allow it to retract completely to disengage the
automatic locking mode and activate the vehicle
sensitive (emergency) locking mode.
After any vehicle collision, the front
passenger and rear outboard seat belt
systems must be checked by a qualified technician
to verify that the“automatic locking retractor”
feature for child seats is still functioning properly.
In addition, all seat belts should be checked for
proper function.
BELT AND RETRACTOR ASSEMBLY MUST
BE REPLACED if the seat belt assembly
“automatic locking retractor”feature or any other
seat belt function is not operating properly when
checked according to the procedures in Workshop
Manual.
Failure to replace the Belt and Retractor
assembly could increase the risk of injury in
collisions.
Safety belt warning light and indicator
chime
The safety belt warning light illuminates in the
instrument cluster and a chime sounds to remind
the occupants to fasten their safety belts.
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Seating and Safety Restraints
73