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:
Safety and security
As with all vehicles built on GM's new full-size SUV platform, the '07 Yukon
family features a 360-degree safety system designed around the pillars of
occupant protection, driver control and perso ...
Forward Collision Alert (FCA) Warning Light
These lights are located on the center of the instrument panel.
The vehicle ahead light comes on when a vehicle is ahead and a possible collision
can occur.
The forward collision alert comes o ...
When the Light Flashes First and Then Is On Steady
If the light flashes for about a minute and then stays on, there may be a problem with the TPMS. If the problem is not corrected, the light will come on at every ignition cycle.
See Tire Pressure Mon ...





