Lexus RX350 driver's side temperature control fails to lower from HI to 72 on Lexus RX350

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

Problem overview

Some Lexus RX350 owners report experiencing issues with the driver's side temperature control failing to lower from HI to 72. This common problem may be linked to malfunctioning blend door actuators located in the HVAC case, which can be difficult to access and replace, complicating the repair process. In some instances, the temperature control may become stuck at "HI" due to system malfunctions, necessitating thorough troubleshooting of the servo motors and other components. It is crucial for owners to address this issue promptly to ensure a comfortable driving environment and to prevent further complications with the climate control system. Consulting a professional mechanic or authorized Lexus service center is recommended for a proper diagnosis and repairs.

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