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.
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HOMESERVICE MANUALSTOYOTA2025HIGHLANDER XLE, 4WDREPAIR AND DIAGNOSIS (SINGLE PAGE)GENERAL INFORMATIONENGINEGENERAL COOLING SYSTEM SERVICE - GENERAL INFORMATIONTESTINGPRESSURE TESTINGRADIATOR CAP
2025 Toyota Highlander XLE, 4WD
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.
RENDER: 1.0x
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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.