Under the Hood

Available only with rear-wheel drive, the 3.6-liter V-6 engine produces 255 horsepower and 252 pounds-feet of torque. Cadillac's 4.6-liter Northstar V-8 generates 320 hp and 315 pounds-feet of torque and can work with either rear- or all-wheel-drive. All-wheel-drive models have a rear bias torque split. Both engines have variable valve timing and drive a five-speed-automatic transmission with Driver Shift Control for manually selected gear changes. Three final-drive ratios are available for V-8-powered models.

    See also:

    Door Ajar Messages
    DRIVER DOOR OPEN This message displays when the driver door is not closed completely. Close the door completely. HOOD OPEN This message displays when the hood is not closed completely. Make s ...

    STS-V
    A performance-oriented V edition of the STS goes on sale as a 2006 model. Equipped with a supercharged 4.4-liter V-8 that produces 469 hp at 6,400 rpm and 439 pounds-feet of torque at 3,800 rpm, t ...

    Cruise Control Light
    The cruise control light is white whenever the cruise control is set, and turns green when the cruise control is active. The light turns off when the cruise control is turned off. See Cruise ...