ignition FORD MUSTANG 2012 5.G Service Manual

The interior motion detection and vehicle incline sensing systems
will operate only when the vehicle is locked using the remote
keyless entry transmitter or when using the power door lock
control with the accompanying door open and all doors then
become closed. For convertible vehicles, the convertible top must
be in the fully closed and latched position for the interior motion
sensing system to arm. If you lock the vehicle using the key in the
driver door key cylinder, the system will monitor the doors,
trunk, and hood but the interior motion sensing and vehicle
incline sensing will not arm.
Do not arm the interior motion detection system if movement within the
vehicle is likely to occur. Additionally, do not arm the vehicle incline
sensing system when the vehicle is in transport.
For proper operation of the interior motion detection system, ensure all
windows are closed prior to arming the system. This will help prevent
accidental alarm activation due to external influences and ensure proper
interior motion detection. Additionally, the interior motion sensing
system will not arm if either door or the trunk is ajar.
If there is any potential perimeter anti-theft problem with your vehicle,
ensureALL integrated keyhead transmittersare brought to the
authorized dealer to aid in troubleshooting.
Arming the system
When armed, the active anti-theft system is designed to notify you of an
unauthorized entry. When unauthorized entry or towing occurs, the
system will flash the turn signal lamps and interior lamps and will sound
the horn.
The system is ready to arm whenever the key is out of the ignition. Any
of the following actions will arm the alarm system:
•Press the
control on the remote entry transmitter portion of your
integrated keyhead transmitter.
•Lock all doors using the interior power lock switch while the driver or
passenger door is open and then becomes closed.
•Lock the driver door with the key in the key lock cylinder (this will
nothowever arm the interior motion or vehicle incline sensing
systems).
There is a 20 second countdown when any of the above actions occur
before the vehicle becomes armed.
Each door, the hood or the trunk is armed individually, and if any are
open, they must be closed for the system to enter the 20 second
countdown.
Locks and Security
113
2012 05+ Mustang(197)
Owners Guide, 1st Printing
USA(fus)

The turn signal lamps will flash once when all doors, the hood and the
trunk are closed indicating the vehicle is locked and entering the
20 second countdown. If any closure is not properly closed the turn
signal lamps will not flash and that closure will not be armed.
Disarming the system
You can disarm the system by any of the following actions:
•Unlock the doors by using the remote entry transmitter portion of
your integrated keyhead transmitter.
•Turn ignition to the on position with a valid programmed SecuriLock
key or integrated keyhead transmitter (IKT).
•Press the panic control on the remote entry transmitter portion of
your IKT. This will only shut off the horn and turn lamps when the
alarm is sounding. The alarm system will still be armed.
•Use a key in the driver’s door to unlock the vehicle.
Pressing the power door unlock control within the 20 second prearmed
mode will return the vehicle to a disarmed state.
Note:Unlocking the trunk inhibits the motion sensing system but the
system continues to monitor the doors, hood and vehicle incline. Once
the trunk becomes closed the motion sensing system will rearm.
Triggering the anti-theft system
The armed system will be triggered if:
•Any door, the hood or the trunk is opened without using the remote
entry transmitter portion of your IKT or key in driver door cylinder.
•The ignition is turned to the on position with an invalid
unprogrammed SecuriLockkey or IKT.
•The vehicle is towed/inclined.
•Motion is detected in the interior passenger compartment.
Locks and Security
114
2012 05+ Mustang(197)
Owners Guide, 1st Printing
USA(fus)

effectiveness of the safety belts. In frontal collisions, the safety belt
pretensioners can be activated alone or, if the collision is of sufficient
severity, together with the front airbags.
Front safety belt energy management retractors
The front outboard safety belt energy management retractors allow
webbing to be pulled out of the retractor in a gradual and controlled
manner in response to the occupant’s forward momentum. This helps
reduce the risk of force-related injuries to the occupant’s chest by
limiting the load on the occupant.
Determining if the Personal Safety System is operational
The Personal Safety System uses a warning light in the instrument
cluster or a back-up tone to indicate the condition of the system. Refer
to theWarning lights and chimessection in theInstrument Cluster
chapter. Routine maintenance of the Personal Safety System is not
required.
The Restraints Control Module (RCM) monitors its own internal circuits
and the circuits for the airbag supplemental restraints, crash sensor(s),
safety belt pretensioners, front safety belt buckle sensors, front
passenger sensing system, and the driver seat position sensor. In
addition, the RCM also monitors the restraints warning light in the
instrument cluster. A difficulty with the system is indicated by one or
more of the following.
•The warning light will either flash or stay lit.
•The warning light will not illuminate immediately after ignition is
turned on.
•A series of five beeps will be heard. The tone pattern will repeat
periodically until the problem and warning light are repaired.
If any of these things happen, even intermittently, contact your
authorized dealer as soon as possible. Unless serviced, the system may
not function properly in the event of a collision.
SAFETY BELT SYSTEM
WARNING:Always drive and ride with your seatback upright
and the lap belt snug and low across the hips.
WARNING:To reduce the risk of injury, make sure children sit
where they can be properly restrained.
Seating and Safety Restraints
128
2012 05+ Mustang(197)
Owners Guide, 1st Printing
USA(fus)

Use only extensions manufactured by the same supplier as the safety
belt. Manufacturer identification is located at the end of the webbing on
the label. Also, use the safety belt extension only if the safety belt is too
short for you when fully extended.
WARNING:Do not use extensions to change the fit of the
shoulder belt across the torso.
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.
Conditions of operation
If... Then...
The driver’s safety belt is not
buckled before the ignition
switch is turned to the on
position...The safety belt warning light
illuminates 1-2 minutes and the
warning chime sounds 4-8 seconds.
The driver’s safety belt is
buckled while the indicator
light is illuminated and the
warning chime is sounding...The safety belt warning light and
warning chime turn off.
The driver’s safety belt is
buckled before the ignition
switch is turned to the on
position...The safety belt warning light and
indicator chime will remain off.
Belt-Minder
The Belt-Minderfeature is a supplemental warning to the safety belt
warning function. This feature provides additional reminders by
intermittently sounding a chime and illuminating the safety belt warning
light in the instrument cluster when the driver’s and front passenger’s
safety belt is unbuckled.
The Belt-Minderfeature uses information from the front passenger
sensing system to determine if a front seat passenger is present and
therefore potentially in need of a warning. To avoid activating the
Belt-Minderfeature for objects placed in the front passenger seat,
warnings will only be given to large front seat occupants as determined
by the front passenger sensing system.
Seating and Safety Restraints
134
2012 05+ Mustang(197)
Owners Guide, 1st Printing
USA(fus)

Both the driver’s and passenger’s safety belt usages are monitored and
either may activate the Belt-Minderfeature. The warnings are the same
for the driver and the front passenger. If the Belt-Minderwarnings have
expired (warnings for approximately five minutes) for one occupant
(driver or front passenger), the other occupant can still activate the
Belt-Minderfeature.
If... Then...
The driver’s and front
passenger’s safety belts are
buckled before the ignition
switch is turned to the on
position or less than
1-2 minutes have elapsed since
the ignition switch has been
turned to on...The Belt-Minderfeature will not
activate.
The driver’s or front
passenger’s safety belt is not
buckled when the vehicle has
reached at least 3 mph
(5 km/h) and 1-2 minutes have
elapsed since the ignition
switch has been turned to on...The Belt-Minderfeature is activated
- the safety belt warning light
illuminates and the warning chime
sounds for six seconds every
30 seconds, repeating for
approximately five minutes or until
the safety belts are buckled.
The driver’s or front
passenger’s safety belt becomes
unbuckled for approximately
one minute while the vehicle is
traveling at least 3 mph
(5 km/h) and more than
1-2 minutes have elapsed since
the ignition switch has been
turned to on...The Belt-Minderfeature is activated
- the safety belt warning light
illuminates and the warning chime
sounds for six seconds every
30 seconds, repeating for
approximately five minutes or until
the safety belts are buckled.
Seating and Safety Restraints
135
2012 05+ Mustang(197)
Owners Guide, 1st Printing
USA(fus)

•The ignition switch is in the off position
•The driver and front passenger safety belts are unbuckled
WARNING:While the design allows you to deactivate your
Belt-Minder, this system is designed to improve your chances of
being safely belted and surviving an accident. We recommend you
leave the Belt-Mindersystem activated for yourself and others who
may use the vehicle. To reduce the risk of injury, do not
deactivate/activate the Belt-Minderfeature while driving the vehicle.
1. Turn the ignition switch to the on position. DO NOT START THE
ENGINE.
2. Wait until the safety belt warning light turns off (approximately one
minute).
•Step 3 must be completed within 30 seconds after the safety belt
warning light turns off.
3. For the seating position being disabled, buckle then unbuckle the
safety belt three times at a moderate speed, ending in the unbuckled
state. Step 3 must be completed within 30 seconds after the safety belt
warning light turns off.
•After Step 3, the restraint system warning light (airbag light) will be
turned on for three seconds.
4. Within approximately seven seconds of the light turning off, buckle
then unbuckle the safety belt.
•This will disable the Belt-Minderfeature for that seating position if it
is currently enabled. As confirmation, the restraint system warning
light will flash four times per second for three seconds.
•This will enable the Belt-Minderfeature for that seating position if it
is currently disabled. As confirmation, the restraint system warning
light will flash four times per second for three seconds, followed by
three seconds with the light off, then followed by the restraint system
warning light flashing four times per second for three seconds again.
Seating and Safety Restraints
138
2012 05+ Mustang(197)
Owners Guide, 1st Printing
USA(fus)

The front passenger sensing system
uses apassenger airbag offor
pass airbag offindicator which will
illuminate and stay lit to remind you
that the front passenger frontal
airbag is disabled. The indicator
lamp is located on the front edge of the map lamps.
Note: The indicator lamp will illuminate for a short period of time when
the ignition is turned to the on position to confirm it is functional.
When the front passenger seat is not occupied (empty seat) or in the
event that the front passenger frontal airbag is enabled (may inflate), the
indicator lamp will be unlit.
The front passenger sensing system is designed to disable (will not
inflate) the front passenger’s frontal airbag when a rear facing infant
seat, a forward-facing child restraint, or a booster seat is detected.
•When the front passenger sensing system disables (will not inflate)
the front passenger frontal airbag, the indicator lamp will illuminate
and stay lit to remind you that the front passenger frontal airbag is
disabled.
•If the child restraint has been installed and the indicator lamp is not
lit, then turn the vehicle off, remove the child restraint from the
vehicle and reinstall the restraint following the child restraint
manufacturer’s instructions.
The front passenger sensing system is designed to enable (may inflate)
the front passenger’s frontal airbag anytime the system senses that a
person of adult size is sitting properly in the front passenger seat.
•When the front passenger sensing system enables the front passenger
frontal airbag (may inflate), the indicator will be unlit and stay unlit.
If a person of adult size is sitting in the front passenger’s seat, but the
passenger airbag offorpass airbag offindicator lamp is lit, it is
possible that the person isn’t sitting properly in the seat. If this happens:
•Turn the vehicle off and ask the person to place the seatback in the
full upright position.
•Have the person sit upright in the seat, centered on the seat cushion,
with the person’s legs comfortably extended.
•Restart the vehicle and have the person remain in this position for
about two minutes. This will allow the system to detect that person
and enable the passenger’s frontal airbag.
Seating and Safety Restraints
144
2012 05+ Mustang(197)
Owners Guide, 1st Printing
USA(fus)

Determining if the system is operational
The SRS uses a readiness light in the instrument cluster or a tone to
indicate the condition of the system. Refer to theWarning lights and
chimessection in theInstrument Clusterchapter. Routine maintenance
of the airbag is not required.
A difficulty with the system is indicated by one or more of the following:
•The readiness light will either
flash or stay lit.
•The readiness light will not
illuminate immediately after
ignition is turned on.
•A series of five beeps will be heard. The tone pattern will repeat
periodically until the problem and/or light are repaired.
If any of these things happen, even intermittently, contact your
authorized dealer as soon as possible. Unless serviced, the system may
not function properly in the event of a collision.
SOS Post-Crash Alert System™
The system automatically flashes the turn signal lamps and sounds the
horn three times at four second intervals in the event of a serious impact
that deploys an airbag (front, side, side curtain [if equipped] or Safety
Canopy[if equipped]) or the safety belt pretensioners.
The system can be turned off when any one of the following actions are
taken by the driver or any other person:
•pressing the hazard control button,
•or pressing the panic button on the remote entry transmitter.
The feature will continue to operate until the vehicle runs out of power.
Disposal of airbags and airbag equipped vehicles
See authorized dealer. Airbags MUST BE disposed of by qualified
personnel.
Seating and Safety Restraints
150
2012 05+ Mustang(197)
Owners Guide, 1st Printing
USA(fus)

STARTING
Positions of the ignition
1. Off — locks the automatic
transmission gearshift lever and
allows key removal.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, turn the engine
off and shift into park. Then, turn
the key to the accessory or off
position.
Note:The ignition key cannot be removed from the ignition unless the
gearshift lever is securely latched in P (Park).
2. Accessory — allows the electrical accessories such as the radio to
operate while the engine is not running.
3. On — all electrical circuits operational. Warning lights illuminated. Key
position when driving.
4. Start — cranks the engine. Release the key as soon as the engine
starts.
Preparing to start your vehicle
Engine starting is controlled by the powertrain control system.
This system meets all Canadian interference-causing equipment standard
requirements regulating the impulse electrical field strength of radio
noise.
When starting a fuel-injected engine, don’t press the accelerator before
or during starting. Only use the accelerator when you have difficulty
starting the engine. For more information on starting the vehicle, refer to
Starting the enginein this chapter.
WARNING:Extended idling at high engine speeds can produce
very high temperatures in the engine and exhaust system,
creating the risk of fire or other damage.
Driving
203
2012 05+ Mustang(197)
Owners Guide, 1st Printing
USA(fus)

BRAKES
Occasional brake noise is normal. If a metal-to-metal, continuous grinding
or continuous squeal sound is present, the brake linings may be worn-out
and should be inspected by an authorized dealer. If the vehicle has
continuous vibration or shudder in the steering wheel while braking, the
vehicle should be inspected by an authorized dealer.
Refer toWarning lights and
chimesin theInstrument Cluster
chapter for information on the brake
system warning light.
Four-wheel anti-lock brake system (ABS)
Your vehicle is equipped with an anti-lock braking system (ABS). This
system helps you maintain steering control during emergency stops by
keeping the brakes from locking. Noise from the ABS pump motor and
brake pedal pulsation may be observed during ABS braking; any
pulsation or mechanical noise you may feel or hear is normal.
Using ABS
When hard braking is required, apply continuous force on the brake
pedal. Do not pump the brake pedal since this will reduce the
effectiveness of the ABS and will increase your vehicle’s stopping
distance. The ABS will be activated immediately, allowing you to retain
steering control during hard braking and on slippery surfaces. However,
the ABS does not decrease stopping distance.
ABS warning lamp
The ABS lamp in the instrument
cluster momentarily illuminates
when the ignition is turned on. If
the light does not illuminate during
start up, remains on or flashes, the
ABS may be disabled and may need to be serviced.
Even when the ABS is disabled,
normal braking is still effective. If
your BRAKE warning lamp
illuminates with the parking brake
released, have your brake system
serviced immediately.
P!
BRAKE
ABS
P!
BRAKE
Driving
209
2012 05+ Mustang(197)
Owners Guide, 1st Printing
USA(fus)