2003 Pontiac Montana Owner's Manual - Page 288

All-Wheel Drive (AWD) System If your vehicle has all-wheel drive (AWD), the AWD system operates automatically without any action required by the driver. If the front drive wheels begin to slip, the rear wheels will automatically begin to drive the vehicle as required. There may be a slight engagement noise during hard use but this is normal. During heavy AWD applications, the engine torque may be reduced to protect AWD system components. If the vehicle is exposed to extended heavy AWD usage, the AWD system will shut itself off to protect the system from overheating. When the system cools down, the AWD system will activate itself again automatically; this cool-down can take up to 20 minutes depending on outside temperature and vehicle use. See All-Wheel Drive Disable Warning Message on page 3-54. Steering Tips Driving on Curves It's important to take curves at a reasonable speed. A lot of the "driver lost control" accidents mentioned on the news happen on curves. Here's why: Experienced driver or beginner, each of us is subject to the same laws of physics when driving on curves. The traction of the tires against the road surface makes it possible for the vehicle to change its path when you turn the front wheels. If there's no traction, inertia will keep the vehicle going in the same direction. If you've ever tried to steer a vehicle on wet ice, you'll understand this. 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're in a curve, speed is the one factor you can control. Suppose you'resteering through a sharp curve. Then you suddenly accelerate. Both control systems - steering and braking - have to do their work wherethe.tires meet the road. Unless you have four-wheel anti-lock brakes, adding the hard braking can demandtoo much of those places. You can lose control. Steering If you lose power steering assist because the engine stops or the system is not functioning, you can steer but it will take much more effort. 4-1 1