2015 Buick Encore: What is the tire size and pressure, and wheel size?

The 2015 Buick Encore rolled out of the factory on P215/55R18 tires which are mounted on 18 diameter wheels that are 7 wide. The tires should be rotated a couple times a year so that the tread wears evenly. Move the rear wheels to the front, keeping them on the same side and put the right front on the left rear and left front on the right rear. The tire pressure should be maintained at 35 PSI to limit wear and for best fuel economy. The Encore has a tire pressure monitoring system (TPMS) that will alert You when the tire pressures fall below the recommended level. Dont rely on the TPMS as a tire gauge, You should manually check the tires regularly and before going on long trips.