2013 FORD MUSTANG check engine light

SYMBOL GLOSSARY
WARNING:You risk death or serious injury to yourself and
others if you do not follow the instruction highlighted by the
warning symbol.
These are some of the symbols you may see on your vehicle.
Symbol Description Symbol Description Symbol Description
Safety alertSee Owner’s
ManualAnti-lock
braking
system
Avoid
smoking,
flames, or
sparksBatteryBattery acid
Brake fluid –
non
petroleum
baseBrake systemCabin air
filter
Check fuel
capChild Safety
Door Lock
and UnlockChild seat
lower anchor
Child seat
tether anchorCruise
controlDo not open
when hot
Engine air
filterEngine
coolantEngine
coolant
temperature
Engine oilExplosive gasFan warning
Fasten safety
beltFront airbagFront fog
lamps
Fuel pump
resetFuse
compartmentHazard
warning
flasher
10Introduction
2013 05+ Mustang(197)
Owners Guide gf, 1st Printing
USA(fus)

Anti-lock brake system
If the ABS light stays illuminated or continues to flash, a
malfunction has been detected. Contact your authorized dealer
as soon as possible. Normal braking is still functional unless the
brake warning light also is illuminated.
Anti-theft system
Flashes when the SecuriLockpassive anti-theft system has
been activated.
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 it illuminates when you are driving, check that the parking brake is not
engaged. If the parking brake is not engaged, this indicates low brake
fluid level or a brake system malfunction. Have the system checked
immediately by your authorized dealer.
WARNING: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 authorized dealer as soon as possible. Driving
extended distances with the parking brake engaged can cause brake
failure and the risk of personal injury.
Charging system
Illuminates when the battery is not charging properly. If it stays
on while the engine is running, there may be a malfunction with
the charging system. Contact your authorized dealer as soon as
possible. This indicates a problem with the electrical system or a related
component.
92Instrument Cluster
2013 05+ Mustang(197)
Owners Guide gf, 1st Printing
USA(fus)

Door ajar
Displays when the ignition is on and any door is not completely
closed.
Engine oil pressure
Illuminates when the oil pressure falls below the normal range.
Engine coolant temperature
Illuminates when the engine coolant temperature is high. Stop
the vehicle as soon as possible, switch off the engine and let
cool.
High beams
Illuminates when the high-beam headlamps are on.
Low fuel
Illuminates when the fuel level in the fuel tank is at or near
empty.
Low tire pressure warning
Illuminates when your tire pressure is low. If the light remains
on at start up or while driving, the tire pressure should be
checked. When the ignition is first turned to on, the light will
illuminate for 3 seconds to ensure the bulb is working. If the light does
not turn on or begins to flash, contact your authorized dealer as soon as
possible.
Powertrain malfunction/reduced power
Illuminates when a powertrain fault has been detected. Contact
your authorized dealer as soon as possible.
Instrument Cluster93
2013 05+ Mustang(197)
Owners Guide gf, 1st Printing
USA(fus)

Safety belt
Reminds you to fasten your safety belt. A Belt-Minderchime
will also sound to remind you to fasten your safety belt.
Service engine soon
Theservice engine soonindicator light illuminates when the
ignition is first turned to the on position to check the bulb and
to indicate whether the vehicle is ready for
Inspection/Maintenance (I/M) testing. Normally, the “service engine soon”
light will stay on until the engine is cranked, then turn itself off if no
malfunctions are present. However, if after 15 seconds the “service
engine soon” light blinks eight times, it means that the vehicle is not
ready for I/M testing. See theReadiness for inspection/maintenance
(I/M) testingin theFuel and Refuelingchapter.
Solid illumination after the engine is started indicates the on-board
diagnostics system (OBD-II) has detected a malfunction. Refer to
On-board diagnostics (OBD-II)in theFuel and Refuelingchapter. 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 by your
authorized dealer.
WARNING: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.
Speed control (if equipped)
The speed control system indicator light changes color to
indicate what mode the system is in:
•On (amber light): Illuminates when the speed control system is turned
on. Turns off when the speed control system is turned off.
•Engaged (green light): Illuminates when the speed control system is
engaged. Turns off when the speed control system is disengaged.
94Instrument Cluster
2013 05+ Mustang(197)
Owners Guide gf, 1st Printing
USA(fus)

RESET FOR SYSTEM CHECK
When this message appears, press
the RESET button and the
information display will begin to
cycle through the following systems
and provide a status of the item if
needed.
1. XXX% OIL LIFE
2. CHARGING SYSTEM
3. DOORS STATUS
4. TRUNK STATUS
5. BRAKE SYSTEM
6. FUEL LEVEL
7. MYKEY DISTANCE (if MyKeyis programmed)
8. MYKEY(S) PROGRAMMED
9. ADMIN KEYS PROGRAMMED
Note:Some systems show a message only if a condition is present.
OIL LIFE
This displays the remaining oil life.
An oil change is required whenever indicated by the information center
and according to the recommended maintenance schedule. USE ONLY
RECOMMENDED ENGINE OILS.
To reset the oil monitoring system to 100% after each oil change perform
the following:
1. Press and release SETUP to display “OIL LIFE XXX% HOLD RESET =
NEW”.
2. Press and hold RESET for two seconds and release to reset the oil life
to 100%.
STEERING FEEL
This feature allows three modes of steering feel.
Press RESET to cycle through the settings of:
•STANDARD–Provides a balance between a comfort and sport feel.
•SPORT–Slightly higher effort required for steering with more road
force felt through the steering wheel. See note below.
98Information Displays
2013 05+ Mustang(197)
Owners Guide gf, 1st Printing
USA(fus)

IGNITION SWITCH
A. Off – the ignition is off.Note:In
order to switch off the engine while
the vehicle is in motion, shift to
neutral and use the brakes to bring
the vehicle to a safe stop. After the
vehicle has stopped, shift into park
and turn the engine off. Then, turn
the key to the accessory or off
position.
B. Accessory – allows the electrical accessories such as the radio to
operate while the engine is not running.
C. On – all electrical circuits operational. Warning lights illuminated. Key
position when driving.
D. Start – cranks the engine. The engine may continue cranking for up to
10 seconds or until the vehicle starts. Release the key as soon as the
engine starts.
Note:Do not store the key in the ignition after the vehicle is turned off
and you have left the vehicle. This could cause a drain on the battery.
STARTING A GASOLINE ENGINE
When the engine starts, the idle RPM runs faster to warm the engine. If
the engine idle speed does not slow down automatically, have the vehicle
checked.
Before starting the vehicle:
•Make sure all occupants buckle their safety belts.
•Make sure the headlamps and electrical accessories are off.
•If starting a vehicle with an automatic transmission, make sure the
gearshift is in P (Park) and the parking brake is set.
•If starting a vehicle with a manual transmission, make sure the parking
brake is set, then push the clutch pedal to the floor.
•Turn the key to on without turning the key to start.
Some warning lights will briefly illuminate.
Note:Do not touch the accelerator pedal.
1. Select park or neutral.
2. Fully press the brake pedal.
C
D
B
A
Starting and Stopping the Engine153
2013 05+ Mustang(197)
Owners Guide gf, 1st Printing
USA(fus)

3. Turn the key to start the engine. The engine may continue cranking
for up to 15 seconds or until the vehicle starts.
Note:If the engine does not start on the first try, wait for a short period
of time and try again.
If you have difficulty starting the engine when the temperature is below
-13
oF (-25oC), press the accelerator pedal slightly and try again.
If the engine does not start after three attempts, wait 10 seconds and
follow this flooded engine procedure.
1. Select park or neutral.
2. Fully press the accelerator pedal and hold it there.
3. Fully press the brake pedal.
4. Start the engine.
Guarding Against Exhaust Fumes
WARNING:If you smell exhaust fumes inside your vehicle, have
this checked immediately. Do not drive your vehicle if you smell
exhaust fumes. Carbon monoxide is present in exhaust fumes. Take
precautions to avoid its dangerous effects.
Important Ventilating Information
If you stop your vehicle and leave the engine idling for long periods of
time, we recommend that you do one of the following:
•Open the windows at least 1 inch (2.5 cm).
•Set your climate control to outside air.
ENGINE BLOCK HEATER (IF EQUIPPED)
WARNING:Failure to follow engine block heater instructions
could result in property damage or physical injury.
WARNING:Do not use your heater with ungrounded electrical
systems or two-pronged (cheater) adapters. There is a risk of
electrical shock.
Note:The heater is most effective when outdoor temperatures are below
0°F (-18°C).
154Starting and Stopping the Engine
2013 05+ Mustang(197)
Owners Guide gf, 1st Printing
USA(fus)

Safety Chains
Always connect the safety chains to the vehicle’s hook retainers. To
connect the safety chains, cross them under the trailer tongue and allow
slack for turning corners.
If you use a rental trailer, follow the rental agency’s instructions.
Note:Never attach safety chains to the bumper.
Trailer Brakes
WARNING:Do not connect a trailer’s hydraulic brake system
directly to your vehicle’s brake system. Your vehicle may not have
enough braking power and your chances of having a collision greatly
increase.
Electric brakes and manual, automatic or surge-type trailer brakes are safe
if installed properly and adjusted to the manufacturer’s specifications. The
trailer brakes must meet local and Federal regulations.
The braking system of the tow vehicle is rated for operation at the
GVWR not GCWR.
Trailer Lamps
Trailer lamps are required on most towed vehicles. Ensure all running
lights, brake lights, turn signals and hazard lights are working. Contact
your authorized dealer or trailer rental agency for proper instructions
and equipment for hooking up the lamps.
Before Towing a Trailer
Practice turning, stopping and backing-up to get the feel of the
vehicle-trailer combination before starting on a trip. When turning, make
wider turns so the trailer wheels will clear curbs and other obstacles.
When Towing a Trailer
•Do not drive faster than 70 mph (113 km/h) during the first 500 miles
(800 kilometers) and do not make full-throttle starts.
•Check your hitch, electrical connections and trailer wheel lug nuts
thoroughly after you have traveled 50 miles (80 kilometers).
•Place the gearshift lever in P (Park) to aid in engine and transmission
cooling and A/C efficiency during hot weather while stopped in traffic.
•Turn off the speed control. The speed control may turn off
automatically when you are towing on long, steep grades.
Towing195
2013 05+ Mustang(197)
Owners Guide gf, 1st Printing
USA(fus)