2012 Toyota Prius FourFACTORY OEM SERVICE PROCEDURE

Customize Parameters

  1. CUSTOMIZING FUNCTION WITH TECHSTREAM 

    HINT: 

    The items in the table below can be customized.

    NOTE:
    • When the customer requests a change in a function, first make sure that the function can be customized.
    • Be sure to make a note of the current setting before customizing.
    • When troubleshooting a function, first make sure that the function is set to the default setting.
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Utility / Customize Setting.
    5. Select the setting by referring to the table below.
      SMART KEY / ACCESS

      Tester Display Default Content Setting
      Ignition Available Area (Entry ignition available area) All Function to choose the available area for electrical key to start the hybrid control system. Front or All*
      • *: Weak radio waves will still be emitted from oscillators other than the front oscillator even when the "Front" customize setting is selected.
  2. CUSTOMIZING FUNCTION WITH MULTI-DISPLAY 

    HINT: 

    The items in the table below can be customized.

    NOTE:
    • When the customer requests a change in a function, first make sure that the function can be customized.
    • Be sure to make a note of the current setting before customizing.
    • When troubleshooting a function, first make sure that the function is set to the default setting.
    1. Customizing with the multi-display (w/ Navigation System (for Navigation Receiver Type) or w/ Audio and Visual System (w/o Daytime Running Light))
      1. Turn the power switch on (IG).
      2. Enter the following menus: SETUP / Vehicle / Vehicle Customization / Door Lock Setting.
      3. Select the setting by referring to the table below.
        Display Default Content Setting Relevant ECU
        Key System with Elec. Key*1
        Entry and Start System*2
        On Function that enables or disables the smart key system. On or Off Certification ECU (smart key ECU assembly)
        • *1: except Korea
        • *2: for Korea
    2. Customizing with the multi-display (w/ Navigation System (for Radio and Display Type) or w/ Audio and Visual System (w/ Daytime Running Light))
      1. Turn the power switch on (IG).
      2. Enter the following menus: SETUP / Vehicle.
      3. Select the setting by referring to the table below.
        Display Default Content Setting Relevant ECU
        Key System with Elec. Key*1
        Entry and Start System*2
        On Function that enables or disables the smart key system. On or Off Certification ECU (smart key ECU assembly)
        • *1: except Korea
        • *2: for Korea
  3. CUSTOMIZING FUNCTION WITHOUT TECHSTREAM 

    Performing the following procedure disables the smart key system.

    HINT: 

    To start the hybrid control system while the smart key system is disabled, follow the procedure for when the key battery is low. Refer to SYSTEM DESCRIPTION .

    1. The operation procedure is as follows:

      Precondition:

      Power switch off, driver door closed and unlocked.

      1. Push the unlock switch of the key once.
      2. Open the driver door within 5 seconds.
      3. Push the unlock switch of the key twice within 5 seconds.
      4. Close and open the driver door twice within 30 seconds.

        (Driver door: Close → Open → Close → Open)

      5. Push the unlock switch of the key twice within 5 seconds.
      6. Close and open the driver door within 30 seconds.

        (Driver door: Close → Open)

      7. Close the driver door within 5 seconds.

        When electrical key cancel is activated, the wireless door lock buzzer sounds twice.

        To return to the original condition, perform the procedure again. When the original condition is returned, the wireless door lock buzzer sounds once.

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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