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:
Voice Recognition
The Bluetooth system uses voice recognition to interpret
voice commands to dial phone numbers and name tags.
Noise: Keep interior noise levels to a minimum. The
system may not recognize voice com ...
Engine Coolant
The cooling system in the vehicle is
filled with DEX-COOL® engine
coolant mixture. See Recommended
Fluids and Lubricants
and Maintenance Schedule for more information.
The following explains ...
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OnStar subscription, and allows
viewing of videos of each service.
Get subscription plan pricing and
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