Our GS has less than 4k kms. I find small bumps on each of the 5 tires including the spare tire which has never been used.
I've asked the dealer to evaluate and they said that it is normal. I looked at the GS in the showroom and found out that 2 of the tires have bumps also.
I don't think the bumps are normal. Maybe factory defect but they would not acknowledge it.
Basta bumukol defect yan. Demand warranty replacement agad. wag ka pumayag na sabihin normal. Gulong yan, that is a high risk/safety issue.
Just think of the tire issue that ford expedition was in USA several years back. There we're several casualties involved in that case. Buhay ang nakasalalay, wag ng sumugal pa.