See also:

Engine Overheating
You will find a coolant temperature gage on your vehicle’s instrument panel. If your vehicle has a Driver Information Center (DIC), the display will show an Engine Coolant Hot/Engine Overheated ...

ENGINE OVERHEATED — IDLE ENGINE
This message displays when the engine coolant temperature is too hot. Stop and allow the vehicle to idle until it cools down. ...

Service Only Mode
This power mode is available for service and diagnostics, and to verify the proper operation of the malfunction indicator lamp as may be required for emission inspection purposes. With the vehicle ...