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2021 Honda Accord 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. 249

Models without navigation system

    The clock resets.

2 Clock P. 166

Canadian models

    The immobilizer system needs to be reset.

2 Immobilizer System Indicator P. 98

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.


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