Yoko dates

[howardsathome]

Hi East Anglia,
Your comment much appreciated.
Unfortunately the US warranties are somewhat bizare.
However, EU regulations do apply and it is possible that a process shortcoming, 'bad batch', could be responsible in this case and Yokohama may be aware of this if pressed.
Any Tyre Dealer in UK can process a claim against a manufacturer.

[howardsathome]

Further to previous comments.
This link may help to explain procedures.
https://www.national.co.uk/information/tyre-warranty-complaint-process
Although it is from National Tyres (part of Continental Tyre Group) it applies to all Tyre dealers in UK.
Unfortunately the link on the website to BTMA (British Tyre Manufacturers Association, not just Manufacturers but Tyre Dealers also) doesn't seem to work.
As it shows, any tyre dealer can return any complaint tyre to the manufacturer, even if they didn't sell it or it was car OE.
This should be done as a gesture of good will.
Hope this helps further.

[MuddyPaws]

Thank you. But unfortunately “This warranty applies only to the original tire purchaser, and is not transferrable to any other party”.

[howardsathome]

Trust me from having been on the 'inside', manufacturers side, this never stopped complaints being handled if there was a genuine manufacturing fault!

[howardsathome]

Note the spelling of tire, that is the US warranty. Please see the BTMA website.