Over inflated and I would check for toe-in/out alignment issues on all four wheels.

Drivers side also shows symptoms of overinflation.

Remember as temperature goes up, air pressure increases, so as spring goes to summer summer to fall, etc. you'll want to recheck them


This ain't no Ron Popeil 'set it and forget it' proposition

Sir you are correct on your observations.
I check the tires monthly so why would only the passenger side be so worn?
The vehicle seldom goes over 50. I can't remember the last time it was on a highway. We are both senior citizens the ones who drive in the left lane going 5 miles under the speed limit.

Even if I messed up on the pressures it's only been 4,000 mile since the last dealer tire rotation.

Don't forget to measure tire pressure "COLD". As long as it hasn't been driven in about 2-3 hours and left out of the sunlight that should suffice.

Looks to me like overinflation. Toe seems OK from what I can tell. Some OEMs set a lot of positive camber, which can cause one side to wear faster than the other, but this is usually mirrored on BOTH sides of the vehicle.

definatly over inflated wear on them. my wife had a 2007 4cyl rav 4 with the factory 18" wheels. she got it as a certified used from the dealer and the tires that were on it had to be replaced when it was traded in because it had the little nubs on them when she bought it and they were OEM tires that the rav normaly came with, they were bridgestones. within 20k miles she had to have them replaced because they were shot, wore out evenly at 32 psi but wouldnt even pass inspection. i had a 2007 scion tc i got new and it had yokahamas on it. i drove it normal no abuse and they lasted me about 20k miles as well but the tread wear rating was 180 and thats low for how crappy they were lol. going by the door sticker is a general guide to go by and usually works ok but every tire brand and model vary as far as stiffness goes and some might need a little more or a little less air in them to wear evenly. and you say it was one side that was worse then the other, maybe depending if you checked and added air when the sun was hitting the passenger side and not the driver side more often can cause that. a general rule of thumb is for every 10 degree temp change up or down you will gain or lose 1psi of air.