Gmc 2007 Acadia User Manual download pdf (Page 340)

Steering

Power 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.

Steering Tips

It is important to take curves at a reasonable

speed.

A lot of the “driver lost control” accidents

mentioned on the news happen on curves.

Here is 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 is no traction, inertia will keep the

vehicle going in the same direction. If you have

ever tried to steer a vehicle on wet ice, you

will understand this.

The traction you can get in a curve depends on

the condition of the tires and the road surface,

the angle at which the curve is banked, and your

speed. While you are in a curve, speed is the

one factor you can control.

Suppose you are steering through a sharp curve.

Then you suddenly accelerate. Both control

systems — steering and acceleration — have to

do their work where the tires meet the road.

Adding the sudden acceleration can demand

too much of those places. You can lose control.

See StabiliTrak

®

System on page 337.

What should you do if this ever happens? Ease up

on the accelerator pedal, steer the vehicle the

way you want it to go, and slow down.

Speed limit signs near curves warn that you should

adjust your speed. Of course, the posted speeds

are based on good weather and road conditions.

Under less favorable conditions you will want to go

slower.

If you need to reduce your speed as you approach

a curve, do it before you enter the curve, while

the front wheels are straight ahead.

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