I have a 2018 GMC Yukon and the drivers seat has been moving a little forward or a little back randomly as I drive. The seat back has moved also. Last night the seat moved itself all the way back as I was driving and I could not stop it with the switch. Fortunately I am tall enough to still reach the pedals! The seat would not move any direction until I turned the car off and back on again. Any ideas or recommendations, it is kind of scary driving now, just wondering if it is going to happen again.