2022 Ford Mustang Owner’s Manual — Warning Lamps and Indicators

Instrument Cluster

The following warning lamps and indicators alert you to a vehicle condition that may become serious. Some lamps illuminate when you start your vehicle to make sure they work. If any lamps remain on after starting your vehicle, refer to the respective system warning lamp for further information.

Note: Some warning indicators appear in the information display and operate the same as a warning lamp but do not illuminate when you start your vehicle.

Adaptive Cruise Control Indicator (If Equipped)

Adaptive Cruise Control - Set or Identification

It illuminates when you switch the system on.

It illuminates white when the system is in standby mode. It illuminates green when you set the adaptive cruise speed.

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Airbag Warning Lamp

If it does not illuminate when you switch the ignition on, continues to flash or remains on when the engine is running, this indicates a malfunction. Have your vehicle checked as soon as possible.

Anti-Lock Brake System Warning Lamp

If it illuminates when you are driving, this indicates a malfunction. Your vehicle continues to have normal braking without the anti-lock brake system function. Have your vehicle checked as soon as possible.

Automatic Headlamp High Beam Indicator (If Equipped)

It illuminates when the system automatically turns the headlamp high beam on.

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Battery

If it illuminates while driving, it indicates a malfunction. Switch off all unnecessary electrical equipment and have the system immediately checked.

Blind Spot Information System Indicator

It illuminates when you switch the system off.

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Brake System Warning Lamp

WARNING: Driving your vehicle with the warning lamp on is dangerous. A significant decrease in braking performance may occur. It may take you longer to stop your vehicle. Have your vehicle checked as soon as possible. Driving extended distances with the parking brake engaged can cause brake failure and the risk of personal injury.

Note: Indicators vary depending on region.

This lamp is a dual function lamp and illuminates when:

You apply the parking brake with the ignition on.
Your vehicle has a brake fault or low brake fluid level, regardless of parking brake position.

If the lamp illuminates when you are moving, you may have the parking brake applied. Make sure the parking brake is off. Have your vehicle checked as soon as possible if the lamp continues to illuminate.

Cruise Control Indicator

It illuminates when you switch the system on.

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Direction Indicator

It illuminates when you switch on the left or right direction indicator or the hazard warning flasher. Flashes during operation. An increase in the rate of flashing warns of a failed indicator bulb.

Door Ajar Warning Lamp

Displays when the ignition is on and any door is not completely closed.

Engine Coolant Temperature Warning Lamp

If it illuminates when your vehicle is moving, this indicates that the engine is overheating. Stop your vehicle as soon as it is safe to do so and switch the engine off. Have your vehicle checked as soon as possible.

Fasten Seatbelt Warning Lamp

It illuminates and a chime sounds until you fasten the seatbelts.

Front Fog Lamp Indicator (If Equipped)

It illuminates when you switch the front fog lamps on.

Headlamp High Beam Indicator

It illuminates when you switch the high beam headlamps on. It flashes when you use the headlamp flasher.

Hood Ajar

It illuminates when the ignition is on and you do not have the hood completely closed.

Lane Keeping System Lamp

Illuminates when the system activates.

Launch Control

Illuminates when this feature is ready, including both slip control and engine RPM hold.

Illuminates when only engine RPM hold is active.See

Low Beam Malfunction

Lights when there is a malfunction with the low beam headlamp bulb.

Low Fuel Level Warning Lamp

If it illuminates when you are driving, refuel as soon as possible.

Low Tire Pressure Warning Lamp

Illuminates when your tire pressure is low. If the lamp remains on with the engine running or when driving, check your tire pressure as soon as possible.

It also illuminates momentarily when you switch the ignition on to confirm the lamp is functional. If it does not illuminate when you switch the ignition on, or begins to flash at any time, have the system checked as soon as possible.

Low Washer Fluid Level Warning Lamp

Illuminates when the washer fluid is low.

Oil Pressure Warning Lamp

Illuminates when you switch the ignition on.

If it illuminates when the engine is running this indicates a malfunction. Stop your vehicle as soon as it is safe to do so and switch the engine off. Check the engine oil level. If the oil level is sufficient, this indicates a system malfunction. Have your vehicle checked as soon as possible.

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Parking Lamps

Illuminate when you switch the parking lamps on.

Powertrain Fault

Illuminates when the system detects a powertrain fault. Have your vehicle checked as soon as possible.

Service Engine Soon

If it illuminates when the engine is running this indicates a malfunction.The On Board Diagnostics system has detected a malfunction of the vehicle emission control system.

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 cranks 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.

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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 does 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.

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Stability Control and Traction Control Off Warning Lamp

Illuminates when you switch the system off.

Trunk Ajar

Illuminates when the ignition is on and you do not have the trunk completely closed.

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