Auto Air Conditioning & Heater Repair: 1999 Buick Regal GS, buick regal, climate control

Question
The car is equipped with driver and passenger side climate controls The heat works great on both sides, but when I turn on the AC, it blows cold on the passenger side and warm on the driver side. The car has an AUTO, DIGITAL climate control.  

Answer
hi Leo

First check your pressures to make sure you have enough refrigerant.  But. I'm sure your actuator motor that control the passenger heat is out of range.  If your pressures are good then disconnect the battery and reconnect to try and  reset the motor.  If that does not work then you need to check the actual motor for proper function.  let me know