Lexus RC350 passenger side air conditioner running hot, possible electric or compressor issue on Lexus RC350

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

Problem overview

Some Lexus RC350 owners report experiencing issues with the passenger side air conditioner blowing hot air. This problem may be attributed to a refrigerant leak, which can lead to insufficient cooling on that side of the vehicle. Additionally, some owners have encountered electrical climate control issues that affect temperature regulation specifically for the passenger side. A malfunctioning air conditioning compressor has also been noted as a potential cause of the hot air. Insufficient refrigerant levels, whether due to a leak or a lack of recharging, can further exacerbate the issue. Furthermore, some owners find that a clogged filter or dryer restricts airflow, resulting in inadequate cooling. To effectively diagnose and resolve these concerns, it is advisable to check refrigerant levels, inspect electrical components, and assess the air conditioning compressor, potentially with the help of a professional mechanic or HVAC technician familiar with Lexus vehicles.

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