The remote central locking is not working. The key must be used in the door to unlock the vehicle, which triggers the alarm. The remote then starts working again briefly but stops after approximately 30 minutes.

The vehicle's remote central locking would intermittently stop functioning approximately 30 minutes after locking. Using the key to manually unlock the door triggered the alarm, after which the remote would temporarily resume working. Both the vehicle battery and remote battery had been replaced approximately six months prior with no improvement. The customer had only recently purchased the vehicle, and the issue had been present the entire time.