2019 Honda Odyssey: What is the tire size and pressure, and wheel size?

Depending on Your configuration, the 2019 Honda Odyssey may take one of two different tires. While most trim levels use P235/60R18 tires on 18 inch rims, the luxurious Elite trim level also upgrades that size, to P235/55R19 tires on 19 inch rims. In either configuration, Your recommended tire pressure for the standard load tire variant (most common) iS33 to 35 pounds per square inch, not to exceed 36. You'll want to stick to the bottom of that range for normal operation. The wheels are, specifically, 7.5Jx18 ET50 and 7.5Jx19 ET50, for the lower and upper trim levels, respectively. While this may not seem like much of a difference, You'll need to ensure that all four tires and wheels match, despite the universal 5x120 bolt pattern with 64.1mm center bore. If You're upgrading Your wheel size all around, note that You'll also need to adjust Your speedometer's calibration.