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.

2010 Lexus IS FFACTORY OEM SERVICE PROCEDURE

Transmission Control Switch: Installation: Installation

INSTALL TRANSMISSION CONTROL SWITCH
1. Apply MP grease to the hatched area of the shift lever guide housing as indicated in the illustration.
  
  Fig 1: Applying MP Grease To Hatched Area Of Shift Lever Guide Housing
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Install the transmission control switch to the shift lever guide housing.
  
  Fig 2: Identifying Transmission Control Switch And Shift Lever Guide Housing
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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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.