Also can you measure the tires? If you don't have a tire tool they are like $4 from any parts store. They are measured in 16th of an inch, so you'd see a new tire look like 13/16".
For example, my K02s on my 4Runner with 36,000 miles are measuring 9/16", and my K02s on my LC200 with 12,000 mile are measuring 13/16", pretty consistently. I measure inner, mid, and outter tire on each tire.
Most people consider them done about 4/16" - 6/16", I think the wear band is around 3 or 4/16".
For example, my K02s on my 4Runner with 36,000 miles are measuring 9/16", and my K02s on my LC200 with 12,000 mile are measuring 13/16", pretty consistently. I measure inner, mid, and outter tire on each tire.
Most people consider them done about 4/16" - 6/16", I think the wear band is around 3 or 4/16".