What to do when you get heat in the front vents but no heat in the back vents? on 2005 Dodge Grand Caravan

We have a dual air system where the back passangers can control thier own climate.

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1 answer
Your vehicle has two separate HVAC units, one located in the front of the vehicle and the other in the rear. Both are controlled by a common control panel on the center of your instrument panel and an independent control for the rear passengers. You will have to have you Heating and A/C (HVAC) unit inspected. This can be diagnosed at you local dealership with their Scan tool.