Does a dead battery on the FOB key prevent the car from starting due to anti theft system?
I suspect that it could but you should see :"security" blinking on the instrument panel. Did you pry the plastic off and look for the battery? FYI Home Depot has most car keys in stock and the charge about $60 for the key and programming
Systems do vary from car make to make and from system to system, but it certainly could.
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