My Ford F150’s theft light is blinking, and now it won’t start. Any ideas on what might be causing this issue, and how I can fix it?
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If the battery in your key fob is low or dead, it may cause communication issues with the vehicle’s anti-theft system, You should check on that and thank me later
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All you need to do is reset the system by turning the key on, wait 10 minutes until the light stops blinking, then turn it off and start the car.
Ive had a similar problem. Turns out that I had a damaged doorlock cylinder which wasn’t quite an issue as my mech was able to quicky fix it
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Sometimes, a worn-out key fob or a weak battery in the key fob can cause the anti-theft system not to recognize the key