Quote:
Originally Posted by philtrick123
Correct me if I'm wrong, but I would have thought that the element in the key that enables engine start is not battery powered. Again I'm guessing that the car uses NFC to check for a passive component in the key. The battery in the key is just for the door/ boot(trunk) unlock function.
Can anyone confirm
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There are TWO elements in the keyfob: one, active is responsible for enabling you to start the car with the keyfob in the cabin, and that one is battery powered, and the second one, very short range, that you need to hold to the steering column in the event of a battery failure.