Cadillac STS uneven heat distribution with hot air from right side vent only on Cadillac STS

Some Cadillac STS owners report experiencing uneven heat distribution, with hot air only coming from the right side vent. This issue may be linked to a faulty thermostat, which can disrupt proper temperature regulation. Additionally, owners are advised to check the blend doors to ensure they are functioning correctly, as improper movement can lead to inconsistent heating. In vehicles equipped with a dual-zone climate control system, some owners find that one side blows cold air while the other side emits hot air, potentially indicating a problem with the sensors. It is recommended that owners seek professional assistance to diagnose and resolve these issues effectively.