I am a tall guy and drive with my seat all the way back and down. The seat back rubs the plastic side panels on both sides, near the water fall and near and below where the seat belt retracts into the side pillar panel. I bought some armorall wipes in matte finish. I coated the seat back sides and the plastic on the side of waterfall, and door side pillar panel., up and down. It dries and you cant tell it has been applied. Best of all, No more squeaky seats, when going over bumps and around corners. Simple but effective.