2009 Buick Enclave Owner's Manual - Page 250

4-10 Driving Your Vehicle Of course, traction is reduced when water, snow, ice, gravel, or other material is on the road. For safety, slow down and adjust your driving to these conditions. It is important to slow down on slippery surfaces because stopping distance is longer and vehicle control more limited. While driving on a surface with reduced traction, try your best to avoid sudden steering, acceleration, or braking, including reducing vehicle speed by shifting to a lower gear. Any sudden changes could cause the tires to slide. You might not realize the surface is slippery until the vehicle is skidding. Learn to recognize warning clues - such as enough water, ice, or packed snow on the road to make a mirrored surface - and slow down when you have any doubt. Remember: Any Antilock Brake System (ABS) helps avoid only the braking skid. Skidding In a skid, a driver can lose control of the vehicle. Defensive drivers avoid most skids by taking reasonable care suited to existing conditions, and by not overdriving those conditions. But skids are always possible. The three types of skids correspond to the vehicle's three control systems. In the braking skid, the wheels are not rolling. In the steering or cornering skid, too much speed or steering in a curve causes tires to slip and lose cornering force. And in the acceleration skid, too much throttle causes the driving wheels to spin. If the vehicle starts to slide, ease your foot off the accelerator pedal and quickly steer the way you want the vehicle to go. If you start steering quickly enough, the vehicle may straighten out. Always be ready for a second skid if it occurs. Driving at Night Night driving is more dangerous than day driving because some drivers are likely to be impaired - by alcohol or drugs, with night vision problems, or by fatigue. Night driving tips include: • Drive defensively. • Do not drink and drive. • Reduce headlamp glare by adjusting the inside rearview mirror. • Slow down and keep more space between you and other vehicles because headlamps can only light up so much road ahead. Watch for animals. When tired, pull off the road. Do not wear sunglasses. Avoid staring directly into approaching headlamps.