The GT has safety warning levels for gasoline vehicles and select diesel applications that do not support on the fly tuning. They can be set up or turned off.
To adjust them:
1. Go to the main menu
2. Select vehicle setup
3. Select set warning levels. From there you can select each one individually, choose whether you want the warning on, or off. If on, select the temperature you would like it to activate at. For example coolant temp. If you select coolant and have the warning setting on, and it is set to 210 degrees F, once the engine coolant gets to 210 the GT will beep alerting you that the temperature has been hit until that temperature gets below the threshold of 210 set up in this menu.