why no heat on driver side?

Hello, When there is a problem with heat or cold not reaching one side of the vehicle, the blend doors, A/C control unit, and wiring are all suspects. The most common cause is a failed blend door/actuator. The blend doors live inside the HVAC ducts under the dash board. They function to divert the proper temperature of air to the proper location based on what the user has selected. You can use the link below to get an estimate for repairing the blend door on your vehicle in your area.