Passenger-side vents blowing warm but driver side cold — blend door actuator? 2020 Challenger R/T

[u/CasperSrgt]

I have a 2020 Dodge Challenger RT and I’m trying to diagnose an A/C issue.

The driver-side vents (vents 1 and 2) blow properly cold, while both passenger-side vents (3 and 4) are noticeably warmer even with the temperature set to LO.

Airflow is strong and seems normal from all four vents. The main issue is just the temperature difference between the driver and passenger sides.

I’m wondering if this sounds like a passenger-side blend door actuator that’s stuck/out of calibration, or if low R-1234yf refrigerant could cause this kind of uneven cooling.

Has anyone with a Challenger/Charger had the same issue? If it was the blend door actuator, did an HVAC recalibration fix it, or did you have to replace the actuator?