2021 Honda Civic Owners Manual - Battery

Battery

Checking the Battery

The condition of the battery is monitored by a sensor located on the negative terminal of the battery. If there is a problem with this sensor, the driver information interface will display a warning message. If this happens, have your vehicle inspected by a dealer.

Check the battery terminals for corrosion monthly.

If your vehicle’s battery is disconnected or goes dead:

The audio system is disabled.

2 Reactivating the audio system P. 205

The clock resets.

2 Adjusting the Clock P. 126

Canadian models only

The immobilizer system needs to be reset.

2 Immobilizer System Indicator P. 88

uuBatteryuCharging the Battery

Disconnect both battery cables to prevent damaging your vehicle’s electrical system. Always disconnect the negative (–) cable first, and reconnect it last.

* Not available on all models

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