2010 GMC Sierra 1500 Crew Cab Owner's Manual - Page 499

Engine Overheating If the vehicle has the DURAMAX Diesel engine, see the DURAMAX® Diesel manual for more information. The vehicle has several indicators to warn of engine overheating. You will find a coolant temperature gauge on the vehicle's instrument panel. See Engine Coolant Temperature Gauge on page 4‑41. In addition, you will find ENGINE OVERHEATED STOP ENGINE, ENGINE OVERHEATED IDLE ENGINE, and ENGINE POWER IS REDUCED messages in the Driver Information Center (DIC) on the instrument panel. See DIC Warnings and Messages on page 4‑66. You may decide not to lift the hood when this warning appears, but instead get service help right away. See Roadside Assistance Program on page 8‑7. ® If you do decide to lift the hood, make sure the vehicle is parked on a level surface. Then check to see if the engine cooling fans are running. If the engine is overheating, both fans should be running. If they are not, do not continue to run the engine and have the vehicle serviced. Notice: Engine damage from running your engine without coolant is not covered by the vehicle warranty. See Overheated Engine Protection Operating Mode for information on driving to a safe place in an emergency. Notice: If the engine catches fire while driving with no coolant, the vehicle can be badly damaged. The costly repairs would not be covered by the vehicle warranty. See Overheated Engine Protection Operating Mode on page 6‑41 for information on driving to a safe place in an emergency. 6-39