2007 Cadillac STS Owner's Manual - Page 328

The traction you can get in a curve depends on the condition of your tires and the road surface, the angle at which the curve is banked, and your speed. While you are in a curve, speed is the one factor you can control. Suppose you are steering through a sharp curve. Then you suddenly accelerate. Both control systems - steering and acceleration - have to do their work where the tires meet the road. Adding the sudden acceleration can demand too much of those places. You can lose control. See Traction Control System (TCS) on page 323 and StabiliTrak® System on page 326. What should you do if this ever happens? Ease up on the accelerator pedal, steer the vehicle the way you want it to go, and slow down. Since your vehicle is equipped with StabiliTrak®, the system may be active. See DIC Warnings and Messages on page 264 and StabiliTrak® System on page 326. Speed limit signs near curves warn that you should adjust your speed. Of course, the posted speeds are based on good weather and road conditions. Under less favorable conditions you will want to go slower. 328 If you need to reduce your speed as you approach a curve, do it before you enter the curve, while your front wheels are straight ahead. Try to adjust your speed so you can "drive" through the curve. Maintain a reasonable, steady speed. Wait to accelerate until you are out of the curve, and then accelerate gently into the straightaway. To help you steer in the direction you want to go, during certain sharp or sudden cornering maneuvers, gear selection is controlled. This will maximize the available drive wheel torque and minimize the transmission response time and shift activity. During this kind of maneuver, the transmission shifts automatically as vehicle speed changes. Adding non-GM accessories can affect your vehicle's performance. See Accessories and Modifications on page 363.