My 2020 CX 5 with 1000 miles on it had a slow leak in drivers side rear tire. Had picked up a nail and had local tire guy put in a plug. A few days latter started to notice that at low speed as I was pulling out of driveway and drove down the street at low speed less then 15 mph it feels like I am driving over bumps and the car is rocking. This goes away once the speed gets above this. There is no vibrations in the steering wheel. What can be causing this I checked that the lug nuts were tight and they were.