Why does only cold air come out of passenger side Chevy Impala?

If only cold air is coming from the passenger side of a Chevy Impala, it could be due to a few issues, such as a malfunctioning blend door actuator, which controls the temperature of the air entering the cabin. Another possibility is a refrigerant leak or low refrigerant levels affecting the air conditioning system's performance. Additionally, a clogged heater core or issues with the climate control settings may also contribute to the discrepancy in temperature. It's advisable to have the vehicle inspected by a qualified technician to diagnose and resolve the issue accurately.