Here is what it says in the manual. This is from the 05 but I assume 06 is the same also.
NOTE: The following steps must occur within the first 60 seconds of the ignition swith being turned to the ON or Start position. DaimlerChrysler does not recommend deactivating the Enhanced Warning System (BeltAlert).
1. Turn the ignition swith to the OFF position and buckle the driver's seat belt.
2. Start the engine and wait for the Seat Belt Warning Light to turn off.
3. Within 60 seconds of starting the vehicle, unbuckle and then re-buckle the driver's seat belt at least three times within 10 seconds, ending with the seat belt buckled.
4. Turn off the engine. A single chime will sound to signify that you have successfully completed the programming.
The Enhanced Warning System (BeltAlert) can be reactivated by repeating this procedure.
Thank you for this information so much. I'm using my fathers truck and it bothers me to no end. Him and I both I guess because when I got in originally, the seatbelt was all ready buckled. My mother had used his truck and she used the seatbelt, she all ways has and all ways will. However, ironicly my father was trying to buckle the belt behind him going down the road once my mother returned it to him and barely hit someone while focusing on getting the seatbelt fastened. So to Dodge and Chrysler let it be known that it's great to use a seatbelt however you don't have to remind people every twenty seconds. Thanks for the Answer.