Originally Posted by
easy_money
For your expired MLFIE just rematch with your Hyatt. It should match instantly. In reference for parking, it doesn't matter if you used an expired card, given that your status is up to date then you can still use it. I have a bunch of old cards which I use in LV all the time. It works for parking and slots. Just need a new updated one if you have to do anything that involves someone that has to check your card.
FYI, the Caesars to MLIFE route would not work as MLIFE does not tier match in LV. Only place that does from some data points I've seen are at MGM Grand, but they would only do it for a new member in MLIFE.
They will not match in Las Vegas, even for a new M life membership. I just went their company and she said they stopped doing that 6 months ago.