2003 GMC Yukon Owner's Manual - Page 329

• As you go over the top of a hill, be alert. There could be something in your lane, like a stalled car or an accident. Winter Driving • You may see highway signs on mountains that warn of special problems. Examples are long grades, passing or no-passing zones, a falling rocks area or winding roads. Be alert to these and take appropriate action. Here are some tips for winter driving: • Have your vehicle in good shape for winter. • You may want to put winter emergency supplies in your vehicle. 4-47