2003 GMC Sierra 1500 Pickup Owner's Manual - Page 286

Control of a Vehicle LE ,nking and then driving very dangerous. is Your reflexes, perceptions, attentiveness and judgement can be affected by even a small amount of alcohol. You can have a serious-or even fatal-collision if you drive after drinking. Please don't drink and drive or ride with a driver who has been drinking. Ride homea cab; or if in you're with a group, designate a driver who will not drink. You have three systems that make your vehicle go where you want it to go. Theyare the brakes, the steering and the accelerator. All three systems haveto do their work at the places where the tires meet the road. Sometimes, as when you're driving on snow or ice, it's easy to ask more of those control systems than the tires and road can provide. That means you can lose control of your vehicle. Also see Traction Assist System (TAS) on page 4-9. 4-5