Disconnect the battery and unbolt the seat. Under the seat is a yellow connection- All yellow connectors correspond with airbags. Disconnect it, spray in some contact cleaner, blow it dry, and reconnect it. This fixes the problem not just on Crossfires but most cars 90% of the time. What happens is the seats are so low, the connector(s) drag. The connections of the SRS are monitored closer than an average connection and rightfully so. If any one connector becomes just slightly loose, it will throw a code. For the "Squibs"- airbags in the sides and bottom cushion of the seats, these typically throw a code when it thinks someone is in the seat but does not receive input of a person's weight. For these, you can simply punch up and down the side of the seat and across the cushion, this typically resets those.