Under the Hood

Mechanical features include:

185-horsepower, 2.9-liter inline-four-cylinder with aluminum block and cylinder head, dual overhead camshafts and four valves per cylinder that makes 190 pounds-feet of torque
242-hp, 3.7-liter inline-five-cylinder with aluminum block and cylinder head and dual overhead camshafts that makes 242 pounds-feet of torque
300-hp, 5.3-liter V-8 with aluminum block and cylinder head and two valves per cylinder that makes 320 pounds-feet of torque; variable valve timing is new for 2010, primarily for improved emissions
Five-speed manual (standard on four-cylinder models)
Four-speed automatic (standard on inline-five-cylinder and V-8, optional on four-cylinder models)

    See also:

    Engine Oil Life System
    The engine oil life system calculates engine oil life based on vehicle use and, on most vehicles, displays a DIC message when it is necessary to change the engine oil and filter. The oil life system ...

    Seat Issues
    As I say, I liked the look of the leather seats. Once I started driving, though, they offered no support in any direction; I felt like I was sitting on top of the seat rather than in it. While it' ...

    Roadside Assistance Program
    U.S.: 1-888-881-3302 TTY Users (U.S.): 1-888-889-2438 Canada: 1-800-268-6800 Mexico: 01-800-466-0801 As the owner of a new GMC, you are automatically enrolled in the Roadside Assistance program. ...