Regardless who is the issuer, US-issued cards will NOT work if the vendors dont have readers to read the ancient technology, the mag tape that is.

The vendors which are equipped with the readers for the mag tape can still accept the US-issued cards. However, MANY MANY smaller vendors are NOT equipped with the readers.

Also, if you rent a car, make sure you fill up before weekend or holidays because ALL 24hrs gas stations are NOT manned but take Smartchip cards only. Toll booths after hours or during holidays are NOT manned and only take Smartchip cards, even Cash would not work.

We were almost stranded on the road when we did not realize it was a long weekend in Switzerland last May.

Currently I dont know any US issuer issues cards in US, that with Smartchip.

There is no solution other than have some cash on hand to meet emergency needs.