Page 8 of 240
These are some of the symbols you may see on your
vehicle.
Vehicle Symbol Glossary
Safety Alert
See Owner’s Guide
Fasten Safety BeltAir Bag-Front
Air Bag-SideChild Seat
Child Seat
Installation WarningChild Seat Lower
Anchor
Child Seat Tether
AnchorBrake System
Anti-Lock Brake
SystemBrake Fluid -
Non-Petroleum
Based
Traction ControlAdvanceTrac
Master Lighting
SwitchHazard Warning
Flasher
Fog Lamps-FrontFuse Compartment
Fuel Pump ResetWindshield
Wash/Wipe
Windshield
Defrost/DemistRear Window
Defrost/Demist
Power Windows
Front/RearPower Window
Lockout
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Introduction
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Page 9 of 240
Vehicle Symbol Glossary
Child Safety Door
Lock/Unlock
Interior Luggage
Compartment
Release Symbol
Panic AlarmEngine Oil
Engine CoolantEngine Coolant
Temperature
Do Not Open When
HotBattery
Avoid Smoking,
Flames, or SparksBattery Acid
Explosive GasFan Warning
Power Steering
FluidMaintain Correct
Fluid LevelMAX
MIN
Emission SystemEngine Air Filter
Passenger
Compartment Air
FilterJack
Check fuel capLow tire warning
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Introduction
9
Page 40 of 240
Replacing headlamp bulbs
To remove the headlamp bulb:
1. Make sure headlamp switch is in the OFF
position, then 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
disconnect the
electrical connector from the bulb by pulling
rearward.
4. Remove the bulb
retaining ring by
rotating it
counterclockwise and
slide off the plastic
base.
5. Remove the old bulb
from the lamp assembly
by pulling it straight
out of the lamp
assembly.
Handle a halogen headlamp bulb carefully
and keep out of children’s reach. Grasp the
bulb only by its plastic base and do not touch the
glass. The oil from your hand could cause the bulb
to break the next time the headlamps are
operated.
Install the new bulb in reverse order.
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Lights
40
Page 54 of 240
KEYS
The key operates all locks on your vehicle. In case of
loss, replacement keys are available from your
dealer.
You should always carry a second key with you in a
safe place in case you require it in an emergency.
Refer toSecuriLockPassive Anti-Theft System
for more information.
POWER DOOR LOCKS
Press U to unlock all
doors and L to lock all
doors.
INTERIOR LUGGAGE COMPARTMENT
RELEASE
Your vehicle is equipped with a mechanical interior
luggage compartment release handle that provides a
means of escape for children and adults in the event
they become locked inside the luggage
compartment.
Adults are advised to familiarize themselves with the
operation and location of the release handle.
UL
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Locks and Security
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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
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Page 56 of 240

On hot days, the temperature in the trunk
or vehicle interior can rise very quickly.
Exposure of people or animals to these high
temperatures for even a short time can cause
death or serious heat-related injuries, including
brain damage. Small children are particularly at
risk.
REMOTE ENTRY SYSTEM
This device complies with part 15 of the FCC rules
and with RS-210 of Industry Canada. Operation is
subject to the following two 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.
Changes or modifications not expressly
approved by the party responsible for
compliance could void the user’s authority to
operate the equipment.
Your vehicle is equipped with a remote entry system
which allows you to:
•unlock the vehicle
doors without a key.
•lock all the vehicle
doors without a key.
•activate the personal
alarm.
•release the decklid.
These features will not operate when the ignition is
in the RUN or START position.
If there is any potential remote keyless entry
problem with your vehicle, ensureALL remote
entry transmittersare taken to the dealership, to
aid in troubleshooting.
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Locks and Security
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Page 70 of 240

2. To unfasten, push
the release button and
remove the tongue
from the buckle.
Energy Management Feature
•This vehicle has a safety belt system with an
energy management feature at the front seating
positions to help further reduce the risk of injury
in the event of a head-on collision.
•This safety belt system has a retractor assembly
that is designed to pay out webbing in a
controlled manner. This feature is designed to
help reduce the belt force acting on the
occupant’s chest.
After any vehicle collision, the safety belt
system at all outboard seating positions
(except driver, which has no“automatic locking
retractor”feature) 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 safety belts should be
checked for proper function.
BELT AND RETRACTOR ASSEMBLY MUST
BE REPLACED if the safety belt assembly
“automatic locking retractor”feature or any other
safety 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.
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Seating and Safety Restraints
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The front and rear outboard safety restraints in the
vehicle are combination lap and shoulder belts. The
front passenger and rear seat outboard safety belts
have two types of locking modes described below:
Vehicle sensitive mode
This is the normal retractor mode, which allows free
shoulder belt length adjustment to your movements
and locking in response to vehicle movement. For
example, if the driver brakes suddenly or turns a
corner sharply, or the vehicle receives an impact of
approximately 8 km/h (5 mph) or more, the
combination safety belts will lock to help reduce
forward movement of the driver and passengers.
Automatic locking mode
The automatic locking mode is not available on the
driver safety belt.
When to use the automatic locking mode
In this mode, the shoulder belt is automatically
pre-locked. The belt will still retract to remove any
slack in the shoulder belt. The automatic locking
mode is not available on the driver safety belt.
This mode should be usedany timea child safety
seat is installed in a passenger front or outboard
rear seating position. Children 12 years old and
under should be properly restrained in the rear seat
whenever possible. Refer toSafety restraints for
childrenorSafety seats for childrenlater in this
chapter.
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Seating and Safety Restraints
71