Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD1999MUSTANG GT, 2D CONVERTIBLE, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)EXTERNAL PAGESDIFFERENT CARSECTION 2511 (ANTI-THEFT SYSTEM - PASSIVE ANTI-THEFT SYSTEM (PATS) (EXCEPT HYBRID))GENERAL PROCEDURESMYKEY® PROGRAMMINGCLEAR MYKEY™
1999 Ford Mustang GT, 2D Convertible, Standard
Clear MyKey™
1999 Ford Mustang GT, 2D Convertible, StandardSECTION Clear MyKey™
WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
- Using an admin key, turn the ignition ON.
- Press SETUP until PRESS RESET TO CLEAR MYKEY appears.
- Press and release the RESET button until HOLD RESET TO CONFIRM CLEAR is displayed.
- Press and hold the RESET button until ALL MYKEYS CLEARED is displayed.
NOTE:
This procedure is used to clear the MyKey® feature on all of the keys that are programmed to the vehicle. All of the keys then operate as normal (admin) keys with no restrictions.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.