2018 Toyota Prius: What is the tire size and pressure, and wheel size?

The 2018 Toyota Prius was offered from the factory with several different rim sizes based on the model and trim You selected. The most common size was the 15 rim that took a 175/65R15 sized tire. The recommended pressure for this tire iS35 psi. The next option was a 16 rim that took a 195/50R16 sized tire and called foR32 psi in the fronts and 29psi in the rear. The final wheel option was a 17 which took a 215/45R17 tire and required 32 psi up front and 30 psi in the back. Regardless of which tire Your Prius has You need to pay close attention to the pressure by checking and adjusting it often. Driving with improperly inflated tires has consequences that range from safety, like having a blow out, to economic, by burning more fuel to do the same amount of driving.