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.
Key Programming - Spare Key Programming Switch
Insert an unprogrammed encoded key into ignition switch. Insert Ford Service Function (FSF) card VERSION 5.0 or higher into scan tool. Select SERVICE BAY FUNCTIONS, PATS, then ENTER SECURITY ACCESS (results in a 10 minute delay). After SECURITY ACCESS procedure has been completed, a new menu will be displayed with command options. Default setting on all new vehicles is ENABLE. Select SPARE KEY PROGRAMMING SWITCH. Set SPARE KEY PROGRAMMING SWITCH to ENABLE to allow keys to be programmed (DISABLE will make key programming non-accessible). Select IGNITION KEY CODE PROGRAM. Turn ignition switch from LOCK to RUN position. Repeat with each new encoded ignition key. Select CANCEL one time to return to MENU SELECTIONS. Turn ignition switch to LOCK position. Disconnect scan tool. Wait 10 or more seconds. Try new key to ensure vehicle starts.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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