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Denali details
The iconic Yukon Denali delves deeper into the luxury SUV realm with enhanced features and craftsmanship that distinguish it from other models. It is a comprehensive package of performance, amenit ...

Battery
The battery supplies power to start the engine and operate any additional electrical accessories. • To avoid break-down or failure to start the vehicle, maintain a battery with full cranking power. ...

Overheated Engine Protection Operating Mode
If an overheated engine condition exists and the ENGINE POWER IS REDUCED message displays, an overheat protection mode which alternates firing groups of cylinders helps to prevent engine damage. In th ...