See also:

How to Add Coolant to the Coolant Surge Tank for Gasoline Engines
If the vehicle has a diesel engine, see “Cooling System” in the Duramax Diesel Supplement for the proper coolant fill procedure. WARNING You can be burned if you spill coolant on hot engine part ...

If No Steam Is Coming from the Engine Compartment
If an engine overheat warning is displayed but no steam can be seen or heard, the problem may not be too serious. Sometimes the engine can get a little too hot when the vehicle: • Climbs a long hil ...

Cargo & Towing
The Yukon Denali is a spacious three-row SUV for people, but that's it. If there are six people and no cargo, the Yukon is a terrific place to be. If you have a lot of cargo — you know, like lug ...