What causes front ac to blow cold but the rear ac blows hot in your 2004 Toyota Sequoia?

In a 2004 Toyota Sequoia, if the front AC is blowing cold air while the rear AC blows hot, it often indicates an issue with the rear climate control system. Possible causes include a malfunctioning rear AC blower, a clogged rear evaporator, or a problem with the rear blend door that regulates airflow. Additionally, low refrigerant levels or a failing compressor could affect the rear system specifically. It's advisable to have the system checked by a professional to diagnose and address the issue properly.