Lexus RX400h cracked radiator issue at 55,000 miles with concerns about potential mechanic misconduct on Lexus RX400h

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Lexus RX400h owners report experiencing cracked radiator issues, which can lead to leaks and overheating, particularly around 55,000 miles. Concerns about potential mechanic misconduct have prompted some owners to seek a second opinion from another professional to verify diagnoses and repair recommendations. Additionally, ensuring that a high-quality replacement radiator is installed correctly is crucial to prevent future complications. While cost considerations are important, prioritizing the quality of repairs over price can help avoid further issues. Regular maintenance checks are recommended to identify potential problems early, and in cases of suspected misconduct by a mechanic, some owners find it necessary to consult legal professionals or consumer protection agencies for guidance.

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