One of the first items on my checklist was to check the tire pressures. The 2021 Owner's Manual has only one tire pressure listed for the fronts and rear. 20 PSI-front, 28 PSI-rear. My fronts were high, my rear was low. My 15 RT Limited gave a range: Front 20 PSI +/- 2 PSI, Rear 26 PSI +/- 2 PSI.