Radiator Cap

2025 Toyota Highlander XLE, 4WDSECTION Radiator Cap

Visually inspect radiator cap. If cap looks okay, connect pressure tester to cap. See Fig 1. Pressurize tester to full radiator cap specification. Replace cap if it fails to hold pressure.

Fig 1: Pressure Testing Radiator Cap
G95C14672
RENDER: 1.0x

NO RELATED

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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.