2011 FORD MUSTANG check engine

Vehicle Symbol Glossary
Power Windows
Front/Rear
Power Window Lockout
Child Safety Door
Lock/UnlockInterior Luggage
Compartment Release
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
Service Engine SoonEngine Air Filter
Passenger Compartment
Air FilterJack
Check Fuel CapLow Tire Pressure
Warning
Introduction
11
2011 05+ Mustang(197)
Owners Guide, 1st Printing
USA(fus)

Service engine soon:The service
engine soon indicator 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 theMaintenance and Specificationschapter.
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 Specifications
chapter. 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 contact your authorized dealer
as soon as possible.
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.
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, contact your authorized dealer as soon as possible. Illumination
after releasing the parking brake indicates low brake fluid level. Contact
your authorized dealer as soon as possible.
P!
BRAKE
Instrument Cluster
13
2011 05+ Mustang(197)
Owners Guide, 1st Printing
USA(fus)

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. Refer to
Engine coolantin theMaintenance and Specificationschapter.
WARNING:Never remove the coolant reservoir cap while the
engine is running or hot.
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. Refer
toInflating your tiresin theTires, Wheels and Loadingchapter. When
the ignition is first turned to on, the light will illuminate for three
seconds to ensure the bulb is working. If the light does not turn on,
contact your authorized dealer as soon as possible. For more information
on this system, refer toTire pressure monitoring system (TPMS)in
theTires, Wheels and Loadingchapter.
AdvanceTrac
/traction control
active:Flashes when the traction
control is active. If the light remains
on a malfunction has been detected;
contact your authorized dealer as
soon as possible. Refer to theDrivingchapter for more information.
AdvanceTrac
/traction control
off light:Illuminates when the
traction control has been disabled
(by the driver or as a result of a
system failure). Refer to the
Drivingchapter for more
information.
Low fuel (if equipped):
Illuminates when the fuel level in
the fuel tank is at or near empty.
Refer toFuel gaugein this chapter.
Instrument Cluster
15
2011 05+ Mustang(197)
Owners Guide, 1st Printing
USA(fus)

Speed control:Illuminates when
the speed control is engaged. Turns
off when the speed control system
is disengaged.
Door ajar:Illuminates when the
ignition is in the on position and any
of the doors or the hood/trunk are
open.
Anti-theft system:Flashes when
the SecuriLock
passive anti-theft
system has been activated.
Electronic throttle control:
Illuminates when the engine has
defaulted to a “limp-home”
operation. Contact your authorized
dealer as soon as possible.
Grade assist (if equipped):
Illuminates when the overdrive
function of the transmission has
been turned off and the grade assist
function has been turned on, refer
to theDrivingchapter.
Turn signal:Illuminates when the
left or right turn signal or the
hazard lights are turned on. If the
indicators stay on or flash faster, check for a burned out bulb.
High beams:Illuminates when the
high beam headlamps are turned on.
Key-in-ignition warning chime:Sounds when the key is left in the
ignition in the off or accessory position and the driver’s door is opened.
Headlamps on warning chime:Sounds when the headlamps or parking
lamps are on, the ignition is off (the key is not in the ignition) and the
driver’s door is opened.
Instrument Cluster
16
2011 05+ Mustang(197)
Owners Guide, 1st Printing
USA(fus)

range, stop the vehicle, turn off the engine and check the engine oil
level. Add oil if needed. If the oil level is correct, have your vehicle
checked at your authorized dealer.
6.
Battery voltage gauge (optional V6 and GT cluster only):
Indicates the battery voltage when the ignition is in the on position. If
the pointer moves and stays outside the normal operating range, have
the vehicle’s electrical system checked as soon as possible.
Odometer and trip odometer:The odometer is displayed in the
message center and registers the distance of individual journeys. For trip
odometer, refer toMessage centerin this chapter.
MESSAGE CENTER
Your vehicle’s message center allows you to configure/personalize certain
vehicle options to suit your needs.
The message center is also capable of monitoring many vehicle systems
and will alert you to potential vehicle problems and various conditions
with an informational message followed by a long indicator chime.
The message center display is located in the instrument cluster.
Info
Press INFO repeatedly to cycle
through the following features:
TRIP A/B
Registers the distance of individual journeys. Press and release INFO
until the A or B trip appears in the display (this represents the trip
mode). Press and hold RESET for two seconds to reset.
Refer toUNITSlater in this section to switch the display from Metric to
English.
MYKEY MILES (km)
For more information, refer toMyKey™in theLocks and Security
chapter.
MILES (km) TO E
This displays an estimate of approximately how far you can drive with
the fuel remaining in your tank under normal driving conditions.
Remember to turn the ignition off when refueling to allow this feature to
correctly detect the added fuel.
Instrument Cluster
19
2011 05+ Mustang(197)
Owners Guide, 1st Printing
USA(fus)

TIMER
Timer displays the trip elapsed drive time.
To operate, do the following:
1. Press and release RESET in order to start the timer.
2. Press and release RESET to pause the timer.
3. Press and hold RESET until the timer resets.
Blank Screen
The message center display will be blank after cycling through all of the
Info menu items.
System check and vehicle feature customization
Press the SETUP button repeatedly
to cycle the message center through
the following features:
RESET FOR SYSTEM CHECK
When this message appears, press
the RESET button and the message
center will begin to cycle through
the following systems and provide a
status of the item if needed.
1. XXX% OIL LIFE
2. DOORS STATUS
3. TRUNK CLOSED
4. BRAKE SYSTEM
5. FUEL LEVEL
6. MYKEY DISTANCE (if MyKey™ is programmed)
7. MYKEY(S) PROGRAMMED
8. 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 message center and
according to the recommended maintenance schedule. USE ONLY
RECOMMENDED ENGINE OILS.
Instrument Cluster
21
2011 05+ Mustang(197)
Owners Guide, 1st Printing
USA(fus)

CHECK BRAKE SYSTEM— Displayed when the brake system needs
servicing. If the warning stays on or continues to come on, contact your
authorized dealer as soon as possible.
DRIVER DOOR AJAR— Displayed when the driver’s door is not
completely closed.
PASSENGER DOOR AJAR— Displayed when the passenger side door
is not completely closed.
FUEL LEVEL LOW— Displayed as an early reminder of a low fuel
condition.
CHECK FUEL FILL INLET— Displayed when the fuel fill inlet may
not be properly closed. Refer toEasy Fuel™ “no cap” fuel systemin
theMaintenance and Specificationschapter.
CHECK CHARGING SYSTEM— Displayed when the electrical system
is not maintaining proper voltage. If you are operating electrical
accessories when the engine is idling at a low speed, turn off as many of
the electrical loads as soon as possible. If the warning stays on or comes
on when the engine is operating at normal speeds, contact your
authorized dealer as soon as possible.
BRAKE FLUID LEVEL LOW— Indicates the brake fluid level is low
and the brake system should be inspected immediately. Refer toBrake
fluidin theMaintenance and Specificationschapter.
LOW TIRE PRESSURE— Displayed when one or more tires on your
vehicle has low tire pressure. Refer toInflating your tiresin theTires,
Wheels and Loadingchapter.
TIRE PRESSURE MONITOR FAULT— Displayed when the tire
pressure monitoring system is malfunctioning. If the warning stays on or
continues to come on, contact your authorized dealer as soon as
possible.
TIRE PRESSURE SENSOR FAULT— Displayed when a tire pressure
sensor is malfunctioning, or your spare tire is in use. For more
information on how the system operates under these conditions, refer to
Tire Pressure Monitoring System (TPMS)in theTires, Wheels and
Loadingchapter. If the warning stays on or continues to come on,
contact your authorized dealer as soon as possible.
POWER STEERING ASSIST FAULT— The power steering system
has disabled power steering assist due to a system error; service is
required.
SERVICE POWER STEERING— The power steering system has
detected a condition that requires service.
Instrument Cluster
25
2011 05+ Mustang(197)
Owners Guide, 1st Printing
USA(fus)

SERVICE POWER STEERING NOW— The power steering system
has detected a condition that requires service immediately.
SERVICE ADVANCETRAC— Displayed when the AdvanceTrac

system has detected a condition that requires service.
ENGINE OIL CHANGE SOON— Displayed when the engine oil life
remaining is 10% or less.
OIL CHANGE REQUIRED— Displayed when the oil life left reaches
0%.
TO STOP ALARM START VEHICLE— Displayed when the perimeter
alarm system is armed and the vehicle is entered using the key on the
driver’s side door. In order to prevent the perimeter alarm system from
triggering, the ignition must be turned to start or on before the
12 second chime expires. SeePerimeter alarm systemin theLocks and
Securitychapter.
SECURITY EVENT OCCURRED (if equipped)— Displayed when
the active anti-theft system (if equipped) was activated since the prior
ignition cycle.
MYKEY ACTIVE DRIVE SAFELY— Displayed at startup when
MyKey™ is in use. Refer toMyKey™in theLocks and Securitychapter
for more information.
KEY COULD NOT PROGRAM— Displayed when an attempt is made
to program a spare key using two existing MyKeys. Refer toMyKey™in
theLocks and Securitychapter for more information.
VEHICLE SPEED 80 MPH MAX— Displayed when a MyKey™ is in
use and the Admin has enabled the MyKey speed limit and the vehicle
speed is 80 mph (130 km/h). Refer toMyKey™in theLocks and
Securitychapter for more information.
SPEED LIMITED TO 80 MPH— Displayed when starting the vehicle
and MyKey™ is in use and the MyKey speed limit is on. Refer to
MyKey™in theLocks and Securitychapter for more information.
CHECK SPEED DRIVE SAFELY— Displayed when a MyKey™ is in
use and the optional setting is on and the vehicle exceeds a preselected
speed. Refer toMyKey™in theLocks and Securitychapter for more
information.
VEHICLE NEAR TOP SPEED— Displayed when a MyKey™ is in use
and the MyKey speed limit is on and the vehicle speed is approaching
80 mph (130 km/h). Refer toMyKey™in theLocks and Security
chapter for more information.
Instrument Cluster
26
2011 05+ Mustang(197)
Owners Guide, 1st Printing
USA(fus)