Active Fuel Management™
Your vehicle’s V8 engine may have Active Fuel Management™. This system allows the engine to operate on either all or half of its cylinders, depending on your 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 your 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.
See also:
Exiting the Feature Settings Menu
The feature settings menu will be exited when any of
the following occurs:
• The vehicle is shifted out of P (Park).
• The vehicle is no longer in ON/RUN.
• The trip/fuel or vehicle informa ...
Locking Rear Axle
Your vehicle may have this feature. A locking rear
axle can give you additional traction on snow, mud,
ice, sand or gravel. It works like a standard axle
most of the time, but when one of the rear ...
Vehicle Overview
Buick brings back one of its well-known nameplates — Regal — for its new
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