Chevrolet 2007 Yukon XL Denali Specifikace stáhnout pdf (Strana 344)

100

101

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. See

StabiliTrak

System on page 348.

Adding non-GM accessories can affect your

vehicle’s performance. See Accessories and

Modiﬁcations on page 426.

Braking

See Brake System Warning Light on page 232.

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 three-fourths 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 three-fourths 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,

whether it is wet, dry, or icy; tire tread; the

condition of your brakes; the weight of the vehicle;

and the amount of brake force applied.

Avoid needless heavy braking. Some people drive

in spurts — heavy acceleration followed by

heavy braking — rather than keeping pace with

traffic. This is a mistake. Your brakes may

not have time to cool between hard stops. Your

brakes will wear out much faster if you do a lot of

heavy braking.

344

1 2 ... 339 340 341 342 343 344 345 346 347 348 349 ... 607 608

Komentáře k této Příručce

Žádné komentáře

Chevrolet 2007 Yukon XL Denali Specifikace Strana 344

Komentáře k této Příručce

Související produkty a manuály pro Auta Chevrolet 2007 Yukon XL Denali