Control of a Vehicle
You have three systems that make your vehicle go where
you want it to go. They are the brakes, the steering and
the accelerator. All three systems have to do their work at
the places where the tires meet the road.
Sometimes, as when you are driving on snow or ice, it
is easy to ask more of those control systems than
the tires and road can provide. That means you can lose
control of your vehicle.
Braking
Braking action involves perception time and
reaction time.
First, you have to decide to push on the brake pedal.
That is perception time. Then you have to bring up your
foot and do it. That is reaction time.
Average reaction time is about 3/4 of a second. But that
is only an average. It might be less with one driver
and as long as two or three seconds or more with
another. Age, physical condition, alertness, coordination
and eyesight all play a part. So do alcohol, drugs and
frustration. But even in 3/4 of a second, a vehicle moving
at 60 mph (100 km/h) travels 66 feet (20 m). That
could be a lot of distance in an emergency, so keeping
enough space between your vehicle and others is
important.
And, of course, actual stopping distances vary greatly
with the surface of the road (whether it is pavement
or gravel); the condition of the road (wet, dry, icy); tire
tread; the condition of your brakes; the weight of
the vehicle and the amount of brake force applied.
4-6
Summary of Contents for 2004 Yokon Denali
Page 5: ...These are some examples of symbols that may be found on the vehicle v...
Page 6: ...NOTES vi...
Page 34: ...Put someone on it Get it up to speed Then stop the vehicle The rider doesn t stop 1 28...
Page 69: ...Yukon Denali Second Row Seat Yukon Denali Third Row 50 50 Split Seat 1 63...
Page 100: ...NOTES 1 94...
Page 150: ...NOTES 2 50...
Page 153: ...NOTES 3 3...
Page 154: ...Instrument Panel Overview 3 4...
Page 424: ...5 108...
Page 430: ...NOTES 5 114...
Page 445: ...Engine Drive Belt Routing 6 15...
Page 462: ...NOTES 7 14...
Page 480: ...NOTES 18...
