I disagree with your previous answer received.. You drive an SUV / Heavier vehicles reguire more PSI due to weight on the tire. Always inflate your tires to the MAX PSI shown on the sidewall of the tire. With heavy vehicles if you notice wear on the outside of the tread pattern or the sidewalls touching the ground you can safely inflate to MAX PSI PLUS 10%...This will also increase your MPG. (Less rolling resistance = increase in fuel economy due to less rolling resistance and less work for the engine / Try rolling a flat tire and then a fully inflated tire and you will see what I mean)...Every tire is different with varying MAX PSI specific for that tire. Monitor your tread, if you notice wear on the outer part of tread you are under inflated or too heavy for that tire / excessive wear in the center of the tread = too much air preasure for your weight. In addition; if you will be pulling a boat or trailer in the future always increase your rear PSI when towing (No more than 10% over Max) for stability and support for additional weight.((( I have a set of tires on my Suburban that have a MAX PSI rating of 35 on the sidewall, I have my front at 40 and rear at 38 when empty, when towing I increase the rear to 40...I now have over 100,000 miles on them and still good tread!))) Safe driving...
That is the maximum air pressure listed on the tire. Do not run them at maximum air pressure. 32 should do.