2005 Buick Terraza warning chimes

Our warning chimes keep going off in our 2005 Terraza while in gear, all doors are closed and locks engaged, no readouts on the Driver Information Center, we reclose all doors and even the hood, it has remote start)chimes silence until we hit a bump or make a turn where the body rolls is this a contact issue with the lock mechanisms? Is there any way to clean the contact area to ensure a good mating of the sensor area? Needless to say it can be very aggravating. Thank you for any advice/help you can render.