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. Rear Seat Belt Removal and Installation (Except Natural Gas models)
865100 LEFT 866100 RIGHT 8551A8 LEFT Removal 1. Rear Seat Cushion 1. Remove the bolt (A) securing the rear seat cushion (B). ...