Honda Civic Service Manual: Battery System

Electrical

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Battery Removal and Installation

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

See also:

Honda Civic Service Manual. Airbag and Tensioner Disposal - in the Vehicle ('13-'14)
Before scrapping any front airbags, side airbags, side curtain airbags, driver's seat belt outer lap tensioner, or front seat belt tensioners (including those in a whole vehicle to be scrapped), the part(s) must be deployed. If the vehicle is still within the warranty p ...