How to go from KLIA T1 to T2 ?

There is a free shuttle bus.

You need to figure out whether the plane is at KLIA or KLIA2, as the locals consider them to be two airports. In fact, they are very close, but with two control towers. Then, if it is KLIA, after the first security check, if the boarding gate is in terminal 2, follow the signs to go to the place where you can take the shuttle train, and you will arrive at T2 after getting off the train. VAT refunds and most duty-free shops can only be seen after getting off the train at T2.

KLIA is T1? KLIA2 is T2? KLIA went to transfer MH370 when it was just completed more than a decade ago, and there is a light rail connection between each terminal. KLIA2 has only been completed for two years and I haven't been there yet.