2008 Toyota Prius BaseFACTORY OEM SERVICE PROCEDURE

Repair Instruction: Initialization

NOTE: When disconnecting the negative (-) battery terminal, initialize the following system(s) after the terminal is reconnected.
SYSTEM NAME CHART

System Name See Step No.
Power Window Control System 1
  1. RESET (INITIALIZE) POWER WINDOW REGULATOR MOTOR (for Driver Side) 
    NOTE: Resetting the power window regulator motor (initializing the pulse sensor) is necessary if: 1) the battery terminal cable is disconnected; 2) the power window regulator master switch assembly, wire harness, power window regulator switch, power window regulator assembly and power window regulator motor are replaced or removed / installed; or 3) the PWR H-fuse, FR DOOR fuse, GAUGE fuse and ECU-IG fuse are replaced. If resetting is not performed, the master switch assembly will not be able to operate the AUTO operation function, jam protection function and remote UP / DOWN function.
    1. *1: Turn the power switch ON (IG).
    2. *2: Open the power window halfway by pressing the power window switch.
    3. *3: Fully pull up on the switch until the power window is fully closed and continue to hold the switch for at least 1 second.
    4. *4: Check that the AUTO UP / DOWN function operates normally.

      If the AUTO UP / DOWN function operates normally, reset operations are complete. If abnormal, follow steps below.

    5. Disconnect the negative (-) battery terminal cable for 10 seconds.
    6. Connect the battery terminal cable.
    7. Perform steps *1 to *4 again.
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.