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Anytime there's any type of warning displayed on the instrument panel it will default back to the standard panel of the odometer. If it does not on the steering wheel there is a return button similar to the returned symbol on the keyboard. If you keep hitting the return button or home button it will take you back to the main screen. It's probably just a normal maintenance light but I wouldn't know unless I see what the display is if he can get to a safe area when he stopped and snapped a picture then have you post it back here that would be great otherwise that will get him back to the main menu. The owners manual has a pretty good picture and description of how to do that also.