Air Vent Temperature does not Change and Right Vent is Different from Left and Vice Versa (Same Left/Right Temperature Setting) [12/2023 - ]: Description

WARNING: This page is about a different car, the 2024 Lexus TX 550h+. However, it is still accessible from the selected car via links, so may be relevant.

If the temperature of the air that blows from the left and right front registers differs even though the same temperature is set for both sides, the following factors may be the cause.

Symptom	Factor
Temperature of outlet air is cooler on left or right side (When same temperature set for both sides)	Compressor with motor assembly malfunction Refrigerant volume (low) Mechanical locking of damper and damper link Solar sensor (automatic light control sensor) malfunction Harness or connector
Temperature of outlet air is warmer on left or right side (When same temperature set for both sides)	Mechanical locking of damper and damper link Blockage in heater radiator unit sub-assembly Harness or connector