2007 Pontiac Grand Prix Owner's Manual - Page 206

HOT COOLANT Notice: If the HOT COOLANT warning message appears on the DIC display, stop the vehicle as soon as possible. Do not increase the engine speed above normal idling speed. Severe engine damage can result from driving a vehicle with an overheated engine. See Engine Overheating on page 364 for more information. This symbol comes on with this message. To avoid added strain, turn off the air conditioner if it is on. When the coolant temperature returns to normal, the air conditioner can be turned back on. This message displays only while the ignition is in RUN. A chime sounds continuously when this message is displayed. Press the set/reset button to acknowledge this message and to clear it from the screen. This message continues to display if it has not been acknowledged when the engine is turned off. It also re-displays for three seconds if the message has been acknowledged, but the condition still exists when the engine is turned off. If the condition still exists, the message re-appears when the engine is turned on. This message displays when the engine coolant temperature is too hot. The engine coolant temperature warning light also appears on the instrument panel cluster. Also, the engine coolant temperature gage will read in the red or hot area. See Engine Coolant Temperature Warning Light on page 179 and Engine Coolant Temperature Gage on page 180 for more information. 206