Vehicle Questions and Answers
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If you see a "no key detected" error on your Ford Expedition, the initial step to take is replacing the battery in your key fob. A weak or dead key fob battery can prevent it from communicating effectively with the body control module in your SUV, triggering the error message. If the error persists after battery replacement, it likely indicates an issue with the body control module. To address this, it is advisable to have a Ford dealership or mechanic inspect the vehicle utilizing specialized diagnostic tools to check for any significant faults in the computer system.
The battery in the key fob has died.
If your car key is the type where the key part flips out from the fob or you have a push button start, the problem could be just a drained battery in the key fob.