2011 Lexus IS 250C AutomaticFACTORY OEM SERVICE PROCEDURE

NAVIGATION SYSTEM (for HDD): Precaution: Precaution

WARNING: This page is about a different car, the 2011 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
  1. PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL 
    NOTE:

    After the engine switch is turned off, the display and navigation module display (HDD navigation system) records various types of memory and settings. As a result, after turning the engine switch off, make sure to wait at least 60 seconds before disconnecting the cable from the negative (-) battery terminal.

  2. PRECAUTIONS FOR DISPLAY AND NAVIGATION MODULE DISPLAY 
    1. An HDD is built into the display and navigation module display to store map data etc. which will be used for the navigation system. Therefore, care must be taken for the following points when handling:
      Fig 1: Identifying Hard Disk Drive
      GTY273030Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. When it is necessary to replace the display and navigation module display, be sure to replace it with a new one.
        NOTE:

        If a used display and navigation module display is installed as a replacement part, the customer's HDD will not be recognized.

      2. Do not apply any vibration or shock to the display and navigation module display.
        NOTE:
        • Do not drop or subject the display and navigation module display to severe impacts.
        • Do not use the display and navigation module display if it has been dropped or subjected to a severe impact.
        • Do not store the display and navigation module display without the HDD installed. (Only remove the HDD from the display and navigation module display when the replacement display and navigation module display or HDD is ready.)
      3. Do not remove the display and navigation module display if there is a risk that condensation may occur.
        NOTE:

        If the temperature of the display and navigation module display changes rapidly, condensation may occur inside the unit. This may cause a malfunction of the HDD. Therefore, when the display and navigation module display is removed from the instrument panel, it needs to be kept inside the vehicle or in an environment with an equivalent temperature and humidity.

      4. Take measures to prevent static electricity.
        NOTE:

        Touching the terminals of a connector can cause static electricity to be transmitted to the internal circuits. This may cause a malfunction of the HDD.

      5. Keep the display and navigation module display away from magnets or magnetized items.
        NOTE:

        Keep the display and navigation module display away from speakers, motors, magnetized tools and other magnetic items.

  3. PRECAUTIONS FOR HARD DISK DRIVE (HDD) 
    1. The map data etc for the navigation system is stored on the Hard Disk Drive (HDD). Make sure to follow the following instructions when replacing the HDD:
      NOTE:

      Data downloaded by the customer may be stored on the HDD. (w/ Manual (SOS) Switch) This data will be lost when the HDD is replaced. Make sure to warn the customer that their data will be lost and obtain their consent prior to replacing the HDD.

      1. The HDD must only be replaced with a new one. Do not attempt to install a used HDD from another vehicle.
        NOTE:

        The display and navigation module display can recognize only a new HDD.

      2. Do not touch the HDD cover.
        Fig 2: Identifying Proper Handling For HDD
        GTY284488Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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