Page 2 of 240
Seating and Safety Restraints 64
Seating 64
Safety restraints 68
Air bags 79
Child restraints 84
Driving 99
Starting 99
Brakes 104
Traction control 107
Transmission operation 108
Vehicle loading 117
Trailer towing 120
Roadside Emergencies 122
Getting roadside assistance 122
Hazard flasher switch 124
Fuel pump shut-off switch 124
Fuses and relays 125
Changing tires 130
Jump starting 136
Wrecker towing 141
Customer Assistance 142
Reporting safety defects (U.S. only) 152
Cleaning 153
Maintenance and Specifications 161
Engine compartment 164
Engine oil 167
Battery 171
Fuel information 182
Part numbers 215
Refill capacities 215
Lubricant specifications 218
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Table of Contents
2
Page 7 of 240

•the use of restraint systems including seat belts
by the driver and passengers,
•information about the performance of various
systems and modules in the vehicle, and
•information related to engine, throttle, steering,
brake or other system status.
Any of this information could potentially include
information regarding how the driver operates the
vehicle, potentially including but not limited to
information regarding vehicle speed, brake or
accelerator application, or steering input. This
information may be stored during regular operation
or in a crash or near crash event.
This stored information may be read out and used
by:
•Ford Motor Company.
•service and repair facilities.
•law enforcement or government agencies.
•others who may assert a right or obtain your
consent to know such information.
Notice to owners of Cobra vehicles
Before you drive your vehicle, be sure to read the
“SVT Cobra Owner’s Guide Supplement.”This book
contains important operation and maintenance
information.
MIDDLE EAST/NORTH AFRICA VEHICLE
SPECIFIC INFORMATION
For your particular global region, your vehicle may
be equipped with features and options that are
different from the ones that are described in this
Owner Guide; therefore, a supplement has been
supplied that complements this book. By referring to
the pages in the provided supplement, you can
properly identify those features, recommendations
and specifications that are unique to your vehicle.
Refer to this Owner Guide for all other
required information and warnings.
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Introduction
7
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
8
Page 10 of 240

WARNING LIGHTS AND CHIMES
Base instrument cluster
Optional instrument cluster
Mach 1 instrument cluster
Warning lights and gauges can alert you to a vehicle
condition that may become serious enough to cause
expensive repairs. A warning light may illuminate
when a problem exists with one of your vehicle’s
functions. Many lights will illuminate when you start
your vehicle to make sure the bulb works. If any
light remains on after starting the vehicle, have the
respective system inspected immediately.
P! BRAKE
L
0
00000 00
C
E
FH
LH
10 203020 406080100
120
140
160
180
405060 70
80
90
100
11 0
1204
5
6
7 3
2
1
H
THEFT
RPMX1000
FUEL DOORSELECT/RESET
LOW
FUELO/D
OFF AIR
BAGSERVICE
ENGINE
SOON
MPH km/h
ABS
.
CHECK
FUEL
CAP
P! BRAKE
L
0
00000 00
C
E
FH
LH
102040608020 40608010 012 0 14 0
160
180
200
220
240
100
120
140
305070 90
110
13 0
1504
5
6
7
8 3
2
1
H
THEFT
RPMX1000
FUEL DOORSELECT/RESET
LOW
FUELO/D
OFF AIR
BAGSERVICE
ENGINE
SOONCHECK
FUEL
CAP
MPH km/h
ABS
.
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Instrument Cluster
10
Page 11 of 240

Service engine soon:
TheService engine
soonindicator light
illuminates when the
ignition is first turned to the ON position to check
the bulb. Solid illumination after the engine is
started indicates the On Board Diagnostics System
(OBD-II) has detected a malfunction. Refer toOn
board diagnostics (OBD-II)in theMaintenance
and Specificationschapter. If the light is blinking,
engine misfire is occurring which could damage your
catalytic converter. Drive in a moderate fashion
(avoid heavy acceleration and deceleration) and
have your vehicle serviced immediately.
Under engine misfire conditions, excessive
exhaust temperatures could damage the
catalytic converter, the fuel system, interior floor
coverings or other vehicle components, possibly
causing a fire.
Check fuel cap:
Illuminates when the
fuel cap may not be
properly installed.
Continued driving with this light on may cause the
Service engine soon light to come on. Refer toFuel
filler capin theMaintenance and Specifications
chapter.
Brake system
warning light:To
confirm the brake
system warning light is
functional, it will momentarily illuminate when the
ignition is turned to the ON position when the
engine is not running, or in a position between ON
and START, or by applying the parking brake when
the ignition is turned to the ON position. If the
brake system warning light does not illuminate at
this time, seek service immediately from your
dealership. Illumination after releasing the parking
SERVICE
ENGINE
SOON
CHECK
FUEL
CAP
P!
BRAKE
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Instrument Cluster
11
Page 12 of 240

brake indicates low brake fluid level and the brake
system should be inspected immediately by your
servicing dealership.
Driving a vehicle with the brake system
warning light on is dangerous. A significant
decrease in braking performance may occur. It will
take you longer to stop the vehicle. Have the
vehicle checked by your dealer immediately.
Anti-lock brake
system:If the ABS
light stays illuminated
or continues to flash, a
malfunction has been detected, have the system
serviced immediately. Normal braking is still
functional unless the brake warning light also is
illuminated.
Air bag readiness:If
this light fails to
illuminate when
ignition is turned to ON, continues to flash or
remains on, have the system serviced immediately. A
chime will also sound when a malfunction in the
supplemental restraint system has been detected.
Safety belt:Reminds
you to fasten your
safety belt. A chime
will also sound to
remind you to fasten your safety belt.
Charging system:
Illuminates when the
battery is not charging
properly.
Low fuel:Illuminates
when the fuel level in
the fuel tank is at or
near empty. Refer to
Fuel gaugein this chapter).
ABS
AIR
BAG
LOW
FUEL
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Instrument Cluster
12
Page 14 of 240
GAUGES
Base instrument cluster gauges
Optional instrument cluster gauges
Mach 1 instrument cluster gauges
Speedometer:Indicates the current vehicle speed.
•Base instrument
cluster
P! BRAKE
L C
EFH
LH
10 203020 406080100
120
140
160
180
405060 70
80
90
100
11 0
1204
5
6
7 3
2
1
H
THEFT
RPMX1000
FUEL DOORSELECT/RESET
LOW
FUELO/D
OFF AIR
BAGSERVICE
ENGINE
SOON
MPH km/h
ABS
00000 00.
CHECK
FUEL
CAP
P! BRAKE
0
00000 00
FH
H
102040608020 40608010 012 0 14 0
160
180
200
220
240
100
120
140
305070 90
110
13 0
1504
5
6
7
8 3
2
1
H
THEFT
RPMX1000
FUEL DOORSELECT/RESET
LOW
FUELO/D
OFF AIR
BAGSERVICE
ENGINE
SOON
MPH km/h
ABS
.
L
LCHECK
FUEL
CAP
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Instrument Cluster
14
Page 35 of 240
HEADLAMP CONTROL
•The first position
turns on the parking,
tail, license plate and
side marker lamps.
•The outer position
turns on the
headlamps.
Foglamp control (if equipped)
The foglamps can be
turned on when the
ignition is in the ON
position and the
headlamp control is in
either of the following
positions:
•Parking lamps
•Low beams
Press the foglamp control to activate the foglamps.
Press the foglamp control again to deactivate the
foglamps.
When the highbeams are activated, the foglamps will
not operate.
Daytime running lamps (DRL) (if equipped)
Turns the headlamps on with a reduced output. To
activate:
•the ignition must be turned on
•the headlamp control is in the OFF or Parking
lamps position
•the high beam headlamps must be turned off
•the parking brake is released
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Lights
35