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). ...

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Honda Civic Owners Manual. When You Cannot Unlock the Fuel Fill Door
What to Do When Unable to Unlock the Fuel Fill Door If you cannot unlock the fuel fill door, use the following procedure.  Open the trunk.  Pull the green release cord beneath the rear tray to the right. ► The release cord unlocks the fuel fill door when it is pulled ...