Stuck loading GTA Online?

Having issues getting into the Tutorial Race at the beginning of Grand Theft Auto Online? You may want to try re-downloading the Tuesday's title update. This worked to resolve the issue for me:

1. Press the Guide button on your controller, go to Settings, and select System Settings.
2. Select Storage or Memory.
3. Highlight any storage device, and then press Y on your controller. (It doesn't matter which storage device you select; the cache will be cleared for all storage devices.)
4. Select Clear System Cache.
5. When prompted to confirm storage device maintenance, select Yes.

Source: How to clear your Xbox 360 system cache (Xbox.com Support)

Rockstar has updated their support page with some other solutions that may work to get you past the infamous “loading session” or “waiting for players” screens.

I hope this helps!