service indicator FORD MUSTANG 2003 4.G Owners Manual

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 door is left
open, and 30 minutes after if the trunk is left open
or the dome lamp control is left on.
SECURILOCKPASSIVE ANTI-THEFT SYSTEM
SecuriLock
passive 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 SecuriLock
passive anti-theft system is not
compatible with non-Ford aftermarket remote start
systems. Use of these systems may result in vehicle
starting problems and a loss of security protection.
THEFT INDICATOR
The theft indicator is the flashing red indicator
located on top of the instrument panel.
•When the ignition is in the OFF position, the
indicator will flash once every 2 seconds to
indicate the SecuriLock
system is functioning as
a theft deterrent.
•When the ignition is in the ON position, the
indicator will glow for 3 seconds to indicate
normal system functionality.
If a problem occurs with the SecuriLock
system,
the indicator will flash rapidly or glow steadily when
the ignition is in the ON position. If this occurs, the
vehicle should be taken to an authorized dealer for
service.
Locks and Security
95

Automatic arming
The vehicle is armed
immediately after
switching the ignition
to the 3 (OFF)
position. The
THEFT
indicator in the
instrument cluster will
flash every two
seconds when the vehicle is armed.
Automatic disarming
Switching the ignition to the 4 (ON) position with a
coded keydisarms the vehicle. The
THEFT
indicator will illuminate for three seconds and then
go out. If the
THEFTindicator stays on for an
extended period of time or flashes rapidly, have the
system serviced by your dealership or a qualified
technician.
Key information
Your vehicle is supplied withtwo coded keys.Only
acoded keywill start your vehicle. Spare coded
keys can be purchased from your dealership. Your
dealership can program your key or you can“do it
yourself.”Refer toProgramming spare keys.
The following items may prevent the vehicle from
starting:
•Large metallic objects
•Electronic devices on the key chain that can be
used to purchase gasoline or similar items
•A second key on the same key ring as thecoded
key
If any of these items are present, you need to keep
these objects from touching thecoded keywhile
starting the engine. These objects and devices
cannot damage thecoded key,but can cause a
momentary“no start”condition if they are too close
to the key during engine start. If a problem occurs,
3
2
1
5
4
Locks and Security
96

If a system fault is detected the OFF indicator lamp
on the traction control switch will be illuminated and
your vehicle should be serviced.
TRACTION-LOK AXLE (IF EQUIPPED)
This axle provides added traction on slippery
surfaces, particularly when one wheel is on a poor
traction surface. Under normal conditions, the
Traction-Lok axle functions like a standard rear axle.
Extended use of other than the manufacturer’s
specified size tires on a Traction-Lok rear axle could
result in a permanent reduction in effectiveness.
This loss of effectiveness does not affect normal
driving and should not be noticeable to the driver.
To reduce the risk of injury, never run the
engine with one wheel off the ground, such
as when changing a tire.
AUTOMATIC TRANSMISSION OPERATION
(IF EQUIPPED)
Brake-shift interlock
This vehicle is equipped with a brake-shift interlock
feature that prevents the gearshift lever from being
moved from P (Park) when the ignition is in the ON
position unless brake pedal is depressed.
If you cannot move the gearshift lever out of P
(Park) with ignition in the ON position and the
brake pedal depressed:
1. Apply the parking brake, turn ignition key to
LOCK, then remove the key.
2. Insert the key and turn it to OFF.Apply the
brake pedal and shift to N (Neutral).
In the ignition OFF position, the automatic
transmission shift lever can be moved from
the P (Park) position without the brake pedal
depressed. To avoid unwanted vehicle movement,
always set the parking brake.
Driving
144

•4.6LSOHCV8 engine
•Oil levels above the MAX mark may cause engine
damage. Some oil must be removed from the
engine by a service technician.
7. Put the indicator back in and ensure it is fully
seated.
Adding engine oil
1. Check the engine oil. For instructions, refer to
Checking the engine oilin this chapter.
2. If the engine oil level is not within the normal
range, add only certified engine oil of the
recommended viscosity. Remove the engine oil filler
cap and use a funnel to pour the engine oil into the
opening.
3. Recheck the engine oil level. Make sure the oil
level is not above the MAX mark on the engine oil
level indicator (dipstick).
4. Install the indicator and ensure it is fully seated.
5. Fully install the engine oil filler cap by turning the
filler cap clockwise 1/4 of a turn until three clicks
are heard or until the cap is fully seated.
To avoid possible oil loss, DO NOT operate the
vehicle with the engine oil level indicator
and/or the engine oil filler cap removed.
Maintenance and Specifications
201

BATTERY
Your vehicle is
equipped with a
Motorcraft
maintenance-free
battery which normally
does not require
additional water during
its life of service.
However, for severe usage or in high temperature
climates, check the battery electrolyte level. Refer to
the scheduled maintenance guide for the service
interval schedules.
Keep the electrolyte level in each cell up to the
“level indicator”. Do not overfill the battery
cells.
If the electrolyte level in the battery is low, you can
add plain tap water to the battery, as long as you do
not use hard water (water with a high mineral or
alkali content). If possible, however, try to only fill
the battery cells with distilled water. If the battery
needs water often, have the charging system
checked.
If your battery has a cover/shield, make sure it
is reinstalled after the battery has been
cleaned or replaced.
For longer, trouble-free operation, keep the top of
the battery clean and dry. Also, make certain the
battery cables are always tightly fastened to the
battery terminals.
If you see any corrosion on the battery or terminals,
remove the cables from the terminals and clean with
a wire brush. You can neutralize the acid with a
solution of baking soda and water.
Maintenance and Specifications
203

•You may need to cycle the ignition from OFF to
ON several times after refueling, to allow the fuel
system to pump the fuel from the tank to the
engine.
•Your“Service Engine Soon”indicator may come
on. For more information on the“Service Engine
Soon”indicator, refer to theInstrument cluster
chapter.
Fuel Filter
For fuel filter replacement, see your dealer or a
qualified service technician. Refer to the scheduled
maintenance guide for the appropriate intervals for
changing the fuel filter.
Replace the fuel filter with an authorized
Motorcraft part. The customer warranty may
be void for any damage to the fuel system if an
authorized Motorcraft fuel filter is not used.
ESSENTIALS OF GOOD FUEL ECONOMY
Measuring techniques
Your best source of information about actual fuel
economy is you, the driver. You must gather
information as accurately and consistently as
possible. Fuel expense, frequency of fill-ups or fuel
gauge readings are NOT accurate as a measure of
fuel economy. We do not recommend taking fuel
economy measurements during the first 1,600 km
(1,000 miles) of driving (engine break-in period).
You will get a more accurate measurement after
3,000 km–5,000 km (2,000 miles-3,000 miles).
Filling the tank
The advertised fuel capacity of the fuel tank on your
vehicle is equal to the rated refill capacity of the fuel
tank as listed in theRefill capacitiessection of this
chapter.
The advertised capacity is the amount of the
indicated capacity and the empty reserve combined.
Indicated capacity is the difference in the amount of
Maintenance and Specifications
219

If the vehicle’s powertrain system or its battery has
just been serviced, the on-board diagnostics system
is reset to a“not ready for I/M test”condition. To
ready the on-board diagnostics system for I/M
testing, a minimum of 30 minutes of city and
highway driving is necessary as described below:
•First, at least 10 minutes of driving on an
expressway or highway.
•Next, at least 20 minutes driving in stop-and-go,
city-type traffic with at least four idle periods.
Allow the vehicle to sit for at least eight hours
without starting the engine. Then, start the engine
and complete the above driving cycle. The engine
must warm up to its normal operating temperature.
Once started, do not turn off the engine until the
above driving cycle is complete.
CHECKING AND ADDING POWER STEERING
FLUID
Check the power steering fluid. Refer to the
scheduled maintenance guide for the service interval
schedules. If adding fluid is necessary, use only
MERCONAT F.
If your vehicle is
equipped with the
3.8L V6 engine,check
the power steering
fluid level with the
engine at normal
operating temperature.
1. Start the engine and
let it run until it
reaches normal
operating temperature
(the engine coolant
temperature gauge
indicator will be near
the center of the
normal area between H
and C).
FILL
HOT
Maintenance and Specifications
225

Jump-starting your
vehicle ...................... 170
K
Keys ..................... 95–97
key in ignition
chime ....................... 14
positions of the
ignition .................. 133
removing from
the ignition ............ 153
L
Lamps
bulb replacement
specifications
chart ........................ 71
cargo lamps ............. 68
daytime running
light .......................... 67
fog lamps ................. 67
headlamps ......... 67, 72
headlamps, flash
to pass ..................... 68
instrument panel,
dimming ................... 68
interior lamps ... 70, 72
replacing
bulbs .................. 71–75
Lane change indicator
(see Turn signal) ...... 70
Lights, warning and
indicator .................... 10
air bag ...................... 11
anti-lock brakes
(ABS) .............. 13, 141
anti-theft ................. 11
brake ........................ 14
charging system ...... 11
fuel cap light ........... 12high beam ............... 10
low fuel .................... 13
overdrive off ............ 13
safety belt ............... 10
service engine
soon ......................... 11
traction control
active ....................... 13
turn signal
indicator .................. 10
Limited slip axle
(see Traction Loc) .. 144
Load limits ............... 154
GAWR .................... 154
GVWR .................... 154
trailer towing ........ 154
Locks
doors ........................ 89
Lubricant
specifications ... 240, 242
Lug nuts,
anti-theft .................. 169
Lumbar support,
seats ......................... 100
M
Manual
transmission ............ 150
fluid capacities ...... 238
lubricant
specifications ........ 242
reverse ................... 152
Mirrors
side view mirrors
(power) ................... 80
Motorcraft
parts ................. 219, 237
O
Octane rating .......... 217
Index
252