Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2009 Toyota Prius BaseFACTORY OEM SERVICE PROCEDURE

Steering System: Precaution

HANDLING PRECAUTIONS FOR SRS AIRBAG SYSTEM (SEE PRECAUTION ).
HANDLING PRECAUTIONS FOR STEERING COLUMN
1. When handling the steering column assembly:
  1. Avoid any impact to the steering column assembly, especially to the motor or the torque sensor. Replace with a new one if dropped or subjected to the severe impact.
  2. Do not pull on the wire harness when moving the steering column assembly.
  3. When the steering column assembly or other steering-related parts have been removed and either reinstalled or replaced, perform the steering center point adjustment (zero point calibration) (see INITIALIZATION ).
2. When disconnecting and reconnecting the connectors:
  1. When disconnecting the connector related to the electronic motor power steering system, turn the power switch ON (IG), center the steering wheel, turn the power switch off, and then disconnect the connector.
  2. When reconnecting the connector related to the electronic motor power steering system, turn the power switch OFF, Center the steering wheel, and then turn the power switch ON (IG) before reconnecting the connector.
    NOTE: Do not turn the power switch ON (IG) when the steering wheel is not centered.

Chapter Navigation

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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.