2008 Hummer H2 Owner's Manual - Page 207

DRIVER DOOR OPEN This message displays and a chime sounds if the driver door is not fully closed and the vehicle is in a drive gear. Stop and turn off the vehicle, check the door for obstructions, and close the door again. Check to see if the message still appears on the DIC. ENGINE OVERHEATED 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. See Engine Overheating on page 5-27 for more information. This message displays when the engine coolant temperature is too hot. Stop and allow the vehicle to idle until it cools down. See Engine Coolant Temperature Gage on page 3-40. See Overheated Engine Protection Operating Mode on page 5-28 for information on driving to a safe place in an emergency. ENGINE HOT A/C (Air Conditioning) TURNED OFF This message displays when the engine coolant becomes hotter than the normal operating temperature. See Engine Coolant Temperature Gage on page 3-40. To avoid added strain on a hot engine, the air conditioning compressor automatically turns off. When the coolant temperature returns to normal, the air conditioning compressor turns back on. You can continue to drive your vehicle. If this message continues to appear, have the system repaired by your dealer/retailer as soon as possible to avoid damage to the engine. ENGINE POWER IS REDUCED This message displays and a chime sounds when the cooling system temperature gets too hot and the engine further enters the engine coolant protection mode. See Engine Overheating on page 5-27 for further information. 3-57