Diagnostic Test

WARNING: This page is about a different car, the 2016 Dodge Durango. However, it is still accessible from the selected car via links, so may be relevant.

CHECK THE A/C HEATER CONTROL

Repair

Check for any controller software updates if applicable. If an update is available, reprogram the controller with the latest software. If no software updates are available, replace and program the A/C Heater Control in accordance with the Service Information.
Perform the HVAC VERIFICATION TEST. Refer to HVAC VERIFICATION TEST .