Active Fuel Management®
Vehicles with V8 engines may have Active Fuel Management™. This system allows the engine to operate on either all or half of its cylinders, depending on the driving conditions.
When less power is required, such as cruising at a constant vehicle speed, the system will operate in the half cylinder mode, allowing the vehicle to achieve better fuel economy. When greater power demands are required, such as accelerating from a stop, passing, or merging onto a freeway, the system will maintain full-cylinder operation.
If the vehicle has an Active Fuel Management™ indicator, see Driver Information Center (DIC) on page 5‑33 for more information on using this display.
See also:
Under the Hood
The Yukon is available with either rear- or four-wheel drive. The Yukon
Denali can have an all-wheel-drive system that's distinct from the available
part-time four-wheel drive on the regular Yukon ...
Bluetooth®
The Bluetooth system allows users with a Bluetooth-enabled cell phone to make
and receive hands-free calls using the vehicle audio system and controls.
The Bluetooth-enabled cell phone must be pair ...
Anti-Pinch Feature
The anti-pinch feature is on windows with the express-up feature. If an object is in the way of the window as it is express-closing, or in certain weather conditions like severe icing, the window will ...





