Thrustmaster TX 458 Concern

When I race the wheel over in Forza 5 within an hour or so, the vibration automatically turns itself off. Is that normal to prevent overheating or is this a bit of a fault?

It’s a common problem. Jury is out on whether it is the game, the wheel, or both. Quickly switching to dashboard and back again usually fixes it.

Or keep racing & a few laps later, the vibration comes back.