neither key works, the problem could involve the vehicle rather than the fob, including the car’s 12-volt battery or keyless-entry system.
What Happens If the Car’s Main Battery Is Dead?
A functioning key fob cannot
been targeted through techniques such as relay attacks.
Manufacturers haveresponded with improved key designs, motion-sensing fobs, ultra-wideband technology, software improvements, and other countermeasures.
The security level therefore varies substantially between vehicle generations and models.
If theft is a concern, check whether your manufacturer has issued security updates or specific recommendations for your vehicle.
Simple Keyless-Car Habits Worth Remembering
Learn where the emergency mechanical key is
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