Ford Mustang Owner's Manual page 20

Check Engine Warning Light
This light illuminates when the engine's
Emission Control System requires service. It will
also illuminate when the ignition key is in the
ON position and the engine is off.
The check engine warning light
Anti-Theft Alarm Light
Anti-theft alarm light
This light is used when you set the anti-theft
alarm system. See Anti-Theft System in the
Controls and Features chapter for more
information.
Turn Signal Indicator Lights
The turn signal arrow will flash to indicate the
direction in which you are going to be turning.
The turn signal indicator light
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