Is There a Difference Between Two Car Keys?

[LeIvan]

Some car spare keys are just mechanical keys, while others are remote control keys identical to the primary key. It is recommended that car owners keep the spare key at home, so that if the primary key is lost, they can still retrieve the spare key to unlock the car door and start the engine. If the spare key is a mechanical key, it can directly unlock the car door using the lock cylinder on the door. If the primary key is lost, the owner should immediately visit a 4S shop to have a technician disable the lost primary key and then have a new key made. Remote control keys contain batteries, which will eventually run out of power with prolonged use. If the battery is dead, the remote control function will fail. Car owners should promptly replace the battery when the remote control key's power is low to avoid any inconvenience in using the car.