2003 GMC Sonoma Owner's Manual - Page 236

Tires: They are vitally important to a safe, trouble-free trip. I the tread good enough for s long-distance driving? Are the tires all inflated to the recommended pressure? e What can you do about highway hypnosis? First, be aware that it can happen. Then here are some tips: e Weather Forecasts: What's the weather outlook along your route? Should you delay your trip a short time to avoid a major storm system? Maps: Do you have up-to-date maps? Make sure your vehicle is well ventilated, with a comfortably cool interior. Keep your eyes moving. Scan the road ahead and to the sides. Check your mirrors and your instruments frequently. If you get sleepy, pull off the road into a rest, service or parking area and take a nap, get some exercise, or both. For safety, treat drowsiness on the highway as an emergency. e @ Highway Hypnosis Is there actually such a condition as "highway hypnosis"? Or is it just plain falling asleep at the wheel? Call it highway hypnosis, lack of awareness, or whatever. There is something about an easy stretch of road with the same scenery, along with the hum of the tires on the road, the drone of the engine, and the rush of the wind against the vehiclethat can make you sleepy. Don't let it happen to you! If it does, your vehicle can leave the road in less than a second, and you could crash and be injured. 4-35