2007 Cadillac CTS Owner's Manual - Page 233

Engine Coolant Hot - Idle Engine Notice: If you drive your vehicle while the engine is overheating, severe engine damage may occur. If an overheat warning appears on the instrument panel cluster and/or DIC, stop the vehicle as soon as possible. Do not increase the engine speed above normal idling speed. See Engine Overheating on page 360 for more information. This message will appear when the engine coolant temperature is too hot. Stop and allow the vehicle to idle until it cools down. Engine Power Reduced This message informs you that the vehicle is reducing engine power to try to protect the engine or transmission from damage due to extreme operating conditions. Reduced engine power can affect the vehicle's ability to accelerate. If this message is on, but there is no reduction in performance, proceed to your destination. The performance may be reduced the next time the vehicle is driven. The vehicle may be driven at a reduced speed while this message is on, but acceleration and speed may be reduced. Anytime this message stays on, the vehicle should be taken to your dealer for service as soon as possible. 233