Honda Civic Service Manual: Battery System

Electrical

...

Battery Removal and Installation

Removal 1. Battery Terminal - Disconnection 1. Make sure the ignition switch is in LOCK (0). ...

See also:

Honda Civic Owners Manual. Automatic Import of Cellular Phonebook and Call History
When Automatic Phone Sync is set to On When your phone is paired, the contents of its phonebook and call history are automatically imported to the system. Automatic Import of Cellular Phonebook and Call History When you select a name from the list in the cellular phonebo ...