Disconnection
NOTE: Some system store data in memory is lost when the battery is disconnected. Do the following procedures before disconnecting the battery.
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Make sure you have the anti-theft code(s) for the audio and/or the navigation system (if equipped), then write down the audio presets.
NOTE: For some models, it maybe necessary to write down the audio presets (AM and FM), because the audio unit does not retain the presets after the battery is disconnected.
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Make sure the ignition switch is in LOCK (0).
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Disconnect and isolate the negative cable from the battery.
NOTE: Always disconnect the negative cable from the battery first.
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Disconnect the positive cable from the battery.
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