2021 FORD MUSTANG service

If it flashes, engine misfire may be
occurring. Increased exhaust gas
temperatures could damage the catalytic
converter or other vehicle components.
Drive in a moderate fashion (avoid heavy
acceleration and deceleration) and have
your vehicle immediately serviced.
It illuminates when you switch the ignition
on prior to engine start to check the bulb
and to indicate whether your vehicle is
ready for Inspection and Maintenance
(I/M) testing.
Normally, it illuminates until the engine is
cranked and automatically turns off if no
malfunctions are present. However, if after
15 seconds it flashes eight times, this
indicates that your vehicle is not ready for
Inspection and Maintenance (I/M) testing.
See Catalytic Converter (page 161).
Shift Indicator
(If Equipped) Illuminates to inform you that
shifting to a higher gear as
indicated may give better fuel
economy and lower CO2
emissions. It will not illuminate during
periods of high acceleration, braking or
when you press the clutch pedal.
Stability Control and Traction
Control Indicator Flashes during operation.
If it does not illuminate when you
switch the ignition on, or remains
on when the engine is running, this
indicates a malfunction. Have your vehicle
checked as soon as possible.
Note: The system automatically turns off
if there is a malfunction.
See
Using Stability Control (page 176).
See Using Traction Control (page 174). Stability Control and Traction
Control Off Warning Lamp Illuminates when you switch the
system off.
Trunk Ajar Illuminates when the ignition is
on and the trunk is not
completely closed.
AUDIBLE WARNINGS AND
INDICATORS
Keyless Warning Alert
The horn sounds twice when you exit your
vehicle with the passive key and your
vehicle is in ON, indicating your vehicle is
still on. The horn also sounds twice when
you exit your vehicle and attempt to lock
the doors manually when the passive key
is still in the vehicle. The doors will not lock
if the passive key remains in the vehicle.
Headlamps On Warning Tone
Sounds when you remove the key from the
vehicle and you have left the headlamps
or parking lamps on.
Parking Brake On Warning Tone
Sounds when you have left the parking
brake on and drive your vehicle. If the
warning tone remains on after you release
the parking brake, have the system
checked by your authorized dealer
immediately.
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Instrument Cluster E138639 E130458 E159323

Airbag
Action
Message
The system detects a malfunction due to a blocked sensor. Remove blockage.
Occupant Sensor
BLOCKED Remove Objects Near
Passenger Seat
Alarm Action
Message
Alarm triggered due to unauthorized entry. See Anti-Theft Alarm (page 74).
Vehicle Alarm To
Stop Alarm, Start Vehicle.
All perimeter sensors are active. See Anti-Theft Alarm (page 74).
Alarm All Sensors
Perimeter Sensing
Battery and Charging System Action
Message
The charging system needs servicing. If the warning stays on or
continues to come on, have the system checked as soon as possible.
Check Charging
System
The charging system needs servicing. If the warning stays on or
continues to come on, have the system checked as soon as possible.
Charging System
Service Soon
The charging system needs servicing. Have the system checked as soon as possible.
Charging System
Service Now
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Information Displays

Doors and Locks
Action
Message
The driver door is not completely closed.
Driver Door Ajar
The passenger door is not completely closed.
Passenger Door
Ajar
The trunk is not completely closed.
Trunk Ajar
The hood is not completely closed.
Hood Ajar
The system has disabled the door switches.
Switches Inhibited
Security Mode
Drive Control Action
Message
Indicates that one or more of the conditions required to change
drive modes has a fault. If issues persist see your authorized dealer.
Drive Mode Not
Available
Electronic Stability Control Action
Message
The system detects a malfunction due to a blocked sensor.
Service Advan-
ceTrac
The status of the system after you switch it off.
AdvanceTrac Off
The status of the system after you switch it on.
AdvanceTrac On
The system is in sport mode.
AdvanceTrac
SPORT MODE
Engine Action
Message
The engine is overheating and the power has been reduced to assistin lowering the temperature. Stop in a safe place as soon as it is possible.
Power Reduced to
Lower Engine Temp
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Information Displays

Exhaust Mode
Action
Message
Indicates that the exhaust state selected, through the menu or drivemode selection, is for use on the track and may not comply with local noise regulations. Only on vehicles with active exhaust.
For Track Use See
Manual
Fuel Action
Message
An early reminder of a low fuel condition.
Fuel Level Low
The fuel fill inlet may not be properly closed.
Check Fuel Fill
Inlet
Hill Start Assist Action
Message
Hill start assist is not available. Have the system checked. See Hill Start Assist (page 173).
Hill Start Assist
Not Available
Keys and Passive Key Action
Message
A reminder to press the brake while starting the vehicle.
To START Press
Brake
A reminder to depress the clutch pedal on manual transmission while starting the vehicle.
To START Press
Clutch
The system does not detect a key in your vehicle. See
Keyless
Starting (page 147).
No Key Detected
You pressed the start/stop button to switch off the engine and yourvehicle does not detect your passive key inside your vehicle.
Restart Now or
Key is Needed
Your vehicle is in the accessory ignition state.
Accessory Power
is Active
There is a problem with your vehicle ’s starting system. See an
authorized dealer for service.
Starting System
Fault
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Information Displays

Action
Message
You have successfully programmed a passive key to the system.
Key Program
Successful
You have failed to program a passive key to the system.
Key Program
Failure
You have programmed the maximum number of keys to the system.
Max Number of
Keys Learned
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 onwith your engine running, have the system checked as soon as possible.
Low Engine Oil
Pressure
The engine oil life remaining is 10% or less.
Change Engine Oil
Soon
The oil life left is at 0%.
Oil Change
Required
The brake fluid level is low, inspected the brake system immediately.See Brake Fluid Check (page 269).
Brake Fluid Level
Low
The brake system needs servicing. Stop your vehicle in a safe place. Have the system checked.
Check Brake
System
Indicates that your vehicle is still in Transport mode. This may not
allow some features to operate properly. Have the system checked.
Transport Mode
Contact Dealer
Indicates that your vehicle is still in Factory mode. This may not
allow some features to operate properly. Have the system checked.
Factory Mode
Contact Dealer
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: 14-09-2020, enUSA, Edition date: 202010, Second-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, displays that 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 - MyKeySetting
With a MyKey in use, park aid is always on.
MyKey Park Aid
Cannot be Deactiv- ated
Park Aid Action
Message
Displays when the system requires service, have the system checkedas soon as possible. See
Rear Parking Aid (page 179).
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: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Information Displays

Steering System
Action
Message
The power steering system has detected a condition that requires service. See an authorized dealer.
Steering Fault
Service Now
The power steering system is not working. Stop your vehicle in asafe place. Have the system checked.
Steering Loss Stop
Safely
The power steering system has detected a condition within thepower steering system or passive entry or passive start system requires service. Have the system checked.
Steering Assist
Fault Service Required
The steering lock system has detected a condition that requiresservice. Have the system checked.
Steering Lock
Malfunction
Service Now
You need to turn your steering wheel while start your vehicle tounlock 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
Tire Mobility Kit Action
Message
This message appears when the tire sealing compound in the
Temporary Mobility Kit expires and you need to replace it. When you replace the sealing compound you can reset any warning
messages through your settings menu. See General Information
(page 99).
Service Tire
Mobility Kit
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Information Displays

Tire Pressure Monitoring System
Action
Message
One or more tires on your vehicle has low tire pressure. See Tire
Pressure Monitoring System (page 324).
Tire Pressure Low
The tire pressure monitoring system is malfunctioning. If the warningstays on or continues to come on, have the system checked. See Tire Pressure Monitoring System
(page 324).
Tire Pressure
Monitor Fault
A tire pressure sensor is malfunctioning or your spare tire is in use.
See
Tire Pressure Monitoring System (page 324). If the warning
stays on or continues to come on, have the system checked as soon as possible.
Tire Pressure
Sensor Fault
Traction Control Action
Message
The status of the system after you switched it off.
Traction Control
Off
The status of the system after you switched it on.
Traction Control
On
The system detects a spinout and turns on the hazard flashers.
Spinout Detected
Hazards Activated
Transmission Action
Message
Have the system checked.
Transmission
Malfunction
Service Now
Have the system checked.
Transmission
Service Required
A reminder to shift into park.
Transmission Not
in Park
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Information Displays