GX 470 V8-4.7L (2UZ-FE) (2004)
Dunlop Tire Flat Spotting Diagnosis
The following instructions apply only to the P265/65R17 110S Dunlop AT2O original equipment tires produced before the production week 0905. Tires
produced on or after production week 0905 do NOT qualify for this program. The last four digits of the tire DOT number represent the production week.
After the tires have been warmed up for a minimum 10 minutes at 65 mph (104.6 km/h), the vehicle should be immediately raised on the hoist. The tires
may be checked with a dial indicator placed at the center rib of the tread design.
If the tires are flat spotted, there will be a short duration dip in the runout gauge reading equal to the approximate size of the tire's footprint, or
approximately 3 - 7 inches (7.6 - 17.8 cm) of the tread circumference. The dip in the reading on the runout gauge will go in and out the same amount; it
is not just a short duration but an abrupt change in the reading. Flat spotting will NOT be visible by eye and requires the use of a dial indicator. Flat
spotting should NOT be confused with any external abrasion on the tire (such as a panic stop) that causes the tread depth in the tire's footprint area.