I don't know what to tell you. Here in the US I know of only one rule. The child must be in a seat, rear-facing if possible.In the back seat if possible. Past that, if the child is in the front (our case) the Air Bag System must be disabled for the passenger seat.

I am not aware of any brand-specific rules of use.

Pages 39-45 of the owners manual covers this. And if you do not have one, you can download a .pdf here:

http://www.chrysler.com/en/owners/manuals/index.html

Good luck!