See also:

Range
The remote key has a range of approximately 60 ft. (20 m) from the vehicle. NOTE Buildings or other obstacles may interfere with the function of the remote key. The vehicle can also be locked ...

Detachable key blade
The key blade can be removed from the remote key. When removed, the key blade can be used to: Lock/unlock the driver's door if the remote key is not functioning properly Lock/unlock the gl ...

Disarming the alarm
Press the Unlock button on the remote key. > Two short flashes from the car's direction indicators confirm that the alarm has been deactivated and that all doors are unlocked. ...