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.

2007 Lexus RX 350 FWDFACTORY OEM SERVICE PROCEDURE

Window Defogger Wire: Repair

IF NECESSARY, REPAIR THE DEFOGGER WIRE
1. Clean the broken wire tips with grease, wax and silicone remover.
  
  Fig 1: Cleaning Broken Wire Tips With Grease
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Place the masking tape along both sides of the wire.
3. Thoroughly mix the repair agent (DuPont paste No. 4817 or equivalent).
4. Using a fine tip brush, apply a small amount of the agent to the wire.
  
  Fig 2: Applying Amount Of Agent To Wire
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. After a few minutes, remove the masking tape.
  NOTE: Do not repair the defogger wire again for at least 24 hours.

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.