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Battery Terminal Disconnection/Reconnection

Disconnection
NOTE: Some systems store data in memory that is lost when the battery is disconnected. Do the following steps before disconnecting the battery. When one month or more passes after disconnecting battery terminal, adjust the data and time on Service Reminder System using HDS.
  1. 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.
  1. Make sure the ignition switch is in LOCK (0).
  1. Disconnect and isolate the negative cable from the battery.
    NOTE: Always disconnect the negative cable from the battery first.
  1. Disconnect the positive cable from the battery.

Reconnection
NOTE: Some system store data in memory is lost when the battery is disconnected. Do the following procedures to restore the system back to normal operation.
  1. Clean the battery terminals.
  1. Reconnect the positive cable (A) to the battery (B) first, then reconnect the negative cable (C) to the battery.
    NOTE: Always connect the positive cable to the battery first.
  1. Apply multipurpose grease to the terminals to prevent corrosion.
  1. Install the terminal cover (D).
  1. Enter the anti-theft code(s) for the audio system and/or the navigation system (if equipped).
  1. Enter the audio presets (if applicable).
  1. Set the clock (for vehicles without navigation).