2018 FORD MUSTANG service

Action
Message
You have not programmed enough keys to the system.
Not Enough Keys
Learned
The key battery is low. Change the battery as soon as possible.
Key Battery Low Replace
Soon
Inform the driver that they are exiting the vehicle and the engine is on.
Engine ON
Maintenance Action
Message
Stop your vehicle as soon as safely possible and turn off the
engine. Check the oil level. If the warning stays on or continues to come on with your engine running, contact an authorized dealer as soon as possible.
Low Engine Oil Pressure
The engine oil life remaining is 10% or less. See General
Maintenance Information (page 438).
Change Engine Oil Soon
The oil life left is at 0%. See General Maintenance Inform-ation
(page 438).
Oil Change Required
The brake fluid level is low, inspected the brake systemimmediately. See
Brake Fluid Check (page 238).
Brake Fluid Level Low
The brake system needs servicing. Stop your vehicle in a safeplace. Contact an authorized dealer.
Check Brake System
Your vehicle is still in Transport or Factory mode. This may
not allow some features to operate properly. See an author- ized dealer.
Transport / Factory
Mode
The powertrain needs service due to a powertrain malfunction.
See Manual
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 07-08-2017, JR3J 19A321 AA enUSA, Edition date: 201707, Third Printing Information Displays

MyKey
Action
Message
You cannot program a MyKey.
MyKey not Created
MyKey is active.
MyKey Active Drive
Safely
When switching on your vehicle and MyKey is in use, displaysthat the MyKey speed limit is on.
Speed Limited to XX
MPH/km/h
MyKey is in use and the MyKey speed limit is on and the vehiclespeed is approaching 80 mph (130 km/h).
Near Vehicle Top Speed
You have reached the speed limit set for your MyKey.
Vehicle at Top Speed of
MyKey Setting
You have an active MyKey with a programmed set speed limit.
Check Speed Drive
Safely
Belt-Minder turns on with a MyKey in use.
Buckle Up to Unmute
Audio
With a MyKey in use, AdvanceTrac turns on.
AdvanceTrac On -
MyKey Setting
With a MyKey in use, traction control turns on.
Traction Control On -
MyKey Setting
With a MyKey in use, park aid is always on.
MyKey Park Aid Cannot
be Deactivated
Park Aid Action
Message
The system has detected a condition that requires service.
Contact an authorized dealer. See
Rear Parking Aid (page
160).
Check Rear Park Aid
Displays the park aid status.
Rear Park Aid On Off
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 07-08-2017, JR3J 19A321 AA enUSA, Edition date: 201707, Third Printing Information Displays

Starting System
Action
Message
A reminder to apply the brake when starting your vehicle.
To START Press Brake
A reminder to apply the clutch when starting your vehicle.
To START Press Clutch
The starter has exceeded its cranking time in attempting tostart your vehicle.
Cranking Time Exceeded
The starter is attempting to start your vehicle.
Engine Start Pending
Please Wait
The system has cancelled the pending start.
Pending Start Cancelled
Steering System Action
Message
The power steering system has detected a condition thatrequires service. See an authorized dealer.
Steering Fault Service
Now
The power steering system is not working. Stop your vehiclein a safe place. Contact an authorized dealer.
Steering Loss Stop
Safely
The power steering system has detected a condition withinthe power steering system or passive entry or passive start system requires service. Contact an authorized dealer.
Steering Assist Fault
Service Required
The steering lock system has detected a condition thatrequires service. See an authorized dealer.
Steering Lock Malfunc-
tion Service Now
You need to turn your steering wheel while start your vehicleto unlock your steering column.
Steering Column Lock
Remove and re-insert
key while turning wheel to unlock
Suspension System Action
Message
Displays if the adaptive damping system detects a condition
that requires service. Your vehicle speed is limited to 80 mph (130 km/h). Have your vehicle serviced soon.
Suspension Fault Speed
Limited to XX MPH/km/ h
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 07-08-2017, JR3J 19A321 AA enUSA, Edition date: 201707, Third Printing Information Displays

Tire Mobility Kit
Action
Message
This message appears when the tire sealing compound in theTemporary Mobility Kit expires and you need to replace it.
Service Tire Mobility Kit
Tire Pressure Monitoring System Action
Message
One or more tires on your vehicle has low tire pressure. SeeTire Pressure Monitoring System (page 279).
Tire Pressure Low
The tire pressure monitoring system is malfunctioning. If thewarning stays on or continues to come on, contact an
authorized dealer.
See Tire Pressure Monitoring System (page 279).
Tire Pressure Monitor
Fault
A tire pressure sensor is malfunctioning or your spare tire is inuse. See
Tire Pressure Monitoring System (page 279). If
the warning stays on or continues to come on, contact an authorized dealer as soon as possible.
Tire Pressure Sensor
Fault
Traction Control Action
Message
The status of the traction control system after you switchedit off or on. See
Using Traction Control (page 156).
Traction Control Off /
Traction Control On
A spinout has occurred and the hazards are on.
Spinout Detected
Hazards Activated
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 07-08-2017, JR3J 19A321 AA enUSA, Edition date: 201707, Third Printing Information Displays

Transmission
Action
Message
See your authorized dealer.
Transmission Malfunc-
tion Service Now
The transmission is overheating and needs to cool. Stop in asafe place as soon as it is possible.
Transmission Over-
heating Stop Safely
The transmission has overheated and needs to cool. Stop ina safe place as soon as it is possible.
Transmission Over
Temperature Stop Safely
See your authorized dealer.
Transmission Service
Required
Transmission is getting hot. Stop to let it cool.
Transmission Too Hot
Press Brake
Displays when the transmission has overheated and haslimited functionality.
Transmission Limited
Function See Manual
Transmission is too cold. Wait for it to warm up before you drive.
Transmission Warming
Up Please Wait
Displays as a reminder to shift into park.
Transmission Not in Park
Displays as a reminder to press the brake pedal in order toselect a gear.
Press Brake Pedal
Displays when the transmission has adjusted the shiftstrategy.
Transmission Adjusted
Displays when the transmission is adjusting the shift strategy.
Transmission Adapt-
Mode
Displays when the transmission shift lever is locked and unable to select gears.
Transmission Indicat-
Mode Lockup On
Displays when the transmission shift lever is unlocked andfree to select gears.
Transmission Indicat-
Mode Lockup Off
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 07-08-2017, JR3J 19A321 AA enUSA, Edition date: 201707, Third Printing Information Displays

EMISSION LAW
WARNING
Do not remove or alter the original
equipment floor covering or
insulation between it and the metal
floor of the vehicle. The floor covering and
insulation protect occupants of the vehicle
from the engine and exhaust system heat
and noise. On vehicles with no original
equipment floor covering insulation, do not
carry passengers in a manner that permits
prolonged skin contact with the metal
floor. Failure to follow these instructions
may result in fire or personal injury. U.S. federal laws and certain state laws
prohibit removing or rendering inoperative
emission control system components.
Similar federal or provincial laws may
apply in Canada. We do not approve of any
vehicle modification without first
determining applicable laws.
Tampering with emissions
control systems including
related sensors or the Diesel
Exhaust Fluid system can result in reduced
engine power and the illumination of the
service engine soon light. Tampering With a Noise Control
System
Federal laws prohibit the following acts:
•
Removal or rendering inoperative by
any person other than for purposes of
maintenance.
• Repair or replacement of any device or
element of the design incorporated into
a new vehicle for the purpose of noise
control prior to its sale or delivery to
the ultimate purchaser or while it is in
use.
• The use of the vehicle after any person
removes or renders inoperative any
device or element of the design.
The U.S. Environmental Protection Agency
may presume to constitute tampering as
follows:
• Removal of hood blanket, fender apron
absorbers, fender apron barriers,
underbody noise shields or acoustically
absorptive material.
• Tampering or rendering inoperative the
engine speed governor, to allow engine
speed to exceed manufacturer
specifications.
If the engine does not start, runs rough,
experiences a decrease in engine
performance, experiences excess fuel
consumption or produces excessive
exhaust smoke, check for the following:
• A plugged or disconnected air inlet
system hose.
• A plugged engine air filter element.
• Water in the fuel filter and water
separator.
• A clogged fuel filter.
• Contaminated fuel.
• Air in the fuel system, due to loose
connections.
• An open or pinched sensor hose.
• Incorrect engine oil level.
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 07-08-2017, JR3J 19A321 AA enUSA, Edition date: 201707, Third Printing Engine Emission Control

•
Incorrect fuel for climatic conditions.
• Incorrect engine oil viscosity for
climactic conditions.
Note: Some vehicles have a lifetime fuel
filter that is integrated with the fuel tank.
Regular maintenance or replacement is not
needed.
Note: If these checks do not help you
correct the concern, have your vehicle
checked as soon as possible.
Noise Emissions Warranty,
Prohibited Tampering Acts and
Maintenance
On January 1, 1978, Federal regulation
became effective governing the noise
emission on trucks over 10,000 lb
(4,536 kg) Gross Vehicle Weight Rating
(GVWR). The preceding statements
concerning prohibited tampering acts and
maintenance, and the noise warranty
found in the Warranty Guide, are
applicable to complete chassis cabs over
10,000 lb (4,536 kg)
GVWR.
CATALYTIC CONVERTER WARNINGS
Do not park, idle or drive your vehicle
on dry grass or other dry ground
cover. The emission system heats up
the engine compartment and exhaust
system, creating the risk of fire. The normal operating temperature
of the exhaust system is very high.
Never work around or attempt to
repair any part of the exhaust system until
it has cooled. Use special care when
working around the catalytic converter.
The catalytic converter heats up to a very
high temperature after only a short period
of engine operation and stays hot after the
engine is switched off. WARNINGS
Exhaust leaks may result in entry of
harmful and potentially lethal fumes
into the passenger compartment. If
you smell exhaust fumes inside your
vehicle, have your vehicle inspected
immediately. Do not drive if you smell
exhaust fumes. Your vehicle has various emission control
components and a catalytic converter that
enables it to comply with applicable
exhaust emission standards.
To make sure that the catalytic converter
and other emission control components
continue to work properly:
•
Do not crank the engine for more than
10 seconds at a time.
• Do not run the engine with a spark plug
lead disconnected.
• Do not push-start or tow-start your
vehicle. Use booster cables. See Jump
Starting the Vehicle (page 207).
• Use only the specified fuel listed.
• Do not switch the ignition off when your
vehicle is moving.
• Avoid running out of fuel.
• Have the items listed in scheduled
maintenance information performed
according to the specified schedule.
Note: Resulting component damage may
not be covered by the vehicle Warranty.
The scheduled maintenance items listed
in scheduled maintenance information are
essential to the life and performance of
your vehicle and to its emissions system.
If you use anything other than Ford,
Motorcraft or Ford-authorized parts for
maintenance replacements or for service
of components affecting emission control,
such non-Ford parts should be equivalent
to genuine Ford Motor Company parts in
performance and durability.
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 07-08-2017, JR3J 19A321 AA enUSA, Edition date: 201707, Third Printing Engine Emission Control

Illumination of the service engine soon
indicator, charging system warning light or
the temperature warning light, fluid leaks,
strange odors, smoke or loss of engine
power could indicate that the emission
control system is not working properly.
An improperly operating or damaged
exhaust system may allow exhaust to
enter the vehicle. Have a damaged or
improperly operating exhaust system
inspected and repaired immediately.
Do not make any unauthorized changes to
your vehicle or engine. By law, vehicle
owners and anyone who manufactures,
repairs, services, sells, leases, trades
vehicles, or supervises a fleet of vehicles
are not permitted to intentionally remove
an emission control device or prevent it
from working. Information about your
vehicle
’s emission system is on the Vehicle
Emission Control Information Decal
located on or near the engine. This decal
also lists engine displacement.
Please consult your warranty information
for complete details.
On-Board Diagnostics (OBD-II)
Your vehicle has a computer known as the
on-board diagnostics system (OBD-II) that
monitors the engine ’s emission control
system. The system protects the
environment by making sure that your
vehicle continues to meet government
emission standards. The OBD-II system
also assists a service technician in properly
servicing your vehicle. When the service engine soon
indicator illuminates, the OBD-II
system has detected a
malfunction. Temporary malfunctions may
cause the service engine soon indicator to
illuminate. Examples are: 1. Your vehicle has run out of fuel
—the
engine may misfire or run poorly.
2. Poor fuel quality or water in the fuel —the engine may misfire or run
poorly.
3. The fuel fill inlet may not have closed properly. See Refueling (page 138).
4. Driving through deep water —the
electrical system may be wet.
You can correct these temporary
malfunctions by filling the fuel tank with
good quality fuel, properly closing the fuel
fill inlet or letting the electrical system dry
out. After three driving cycles without these
or any other temporary malfunctions
present, the service engine soon indicator
should stay off the next time you start the
engine. A driving cycle consists of a cold
engine startup followed by mixed city and
highway driving. No additional vehicle
service is required.
If the service engine soon indicator remains
on, have your vehicle serviced at the first
available opportunity. Although some
malfunctions detected by the OBD-II may
not have symptoms that are apparent,
continued driving with the service engine
soon indicator on can result in increased
emissions, lower fuel economy, reduced
engine and transmission smoothness and
lead to more costly repairs.
Readiness for Inspection and
Maintenance (I/M) Testing
Some state and provincial and local
governments may have
Inspection/Maintenance (I/M) programs
to inspect the emission control equipment
on your vehicle. Failure to pass this
inspection could prevent you from getting
a vehicle registration. If the service engine soon
indicator is on or the bulb does
not work, your vehicle may need
service. See On-Board Diagnostics.
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 07-08-2017, JR3J 19A321 AA enUSA, Edition date: 201707, Third Printing Engine Emission Control