If you need to transport a child in a rear-facing car seat, consult your owner's manual for the proper seating arrangements and any recommendations the manufacturer might have. The safest option is often to place the child in the back seat. Never place a rear-facing car seat in the front passenger seat if the airbag is active.
If you have concerns about the passenger-side airbag's functionality, take your van to a qualified mechanic or Dodge dealership for inspection and any necessary repairs. They can diagnose any problems and ensure the airbag system operates correctly.