Chevrolet 2013 Impala Police Package Manual de Serviço descarregar pdf (Página 129)

2013 Chevrolet MuniCipal vehiCles teChniCal Manual

14 | antI-Lock BrakIng system and staBILItrak

IMPORTANT

DRIVING

SAFETY TIPS

Always maintain a safe

following distance.

ABS does not

allow you to stop on a dime. (Generally a

2-second following distance is considered

safe in ideal conditions.) Watch the vehicle

in front of you pass a fixed marker (such as a

sign). Count seconds—one-thousand-one,

one-thousand-two-until your front bumper

reaches the marker. If you do not count out

two seconds, then you are too close to the

vehicle in front of you. Also, if the roads are

wet or icy, or visibility is poor, you should

increase your following distance.

Always drive carefully—

especially on slippery surfaces. ABS cannot

create friction between the tires and the road

surface, it can only give the driver the

maximum advantage of the existing

adhesion. If the vehicle is traveling on a

surface with no adhesion, the best ABS in the

world cannot provide a shorter stopping

distance or good steering.

It is a good idea to practice an

ABS activated stop

and get the feel

of the brake pedal. However, please make

sure it’s at a safe time with no obstacles in

your path. And you only really need to try

it once or twice to know what happens.

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StabiliTrak systems help drivers maintain control of their

vehicles, especially during emergency lane changes or

avoidance maneuvers. StabiliTrak uses various sensors,

such as steering wheel angle, wheel speed, yaw velocity,

etc., to detect any difference between the path requested

by the steering wheel position and vehicle’s actual path.

When appropriate, the system selectively controls brakes,

engine power, and even suspension settings to enhance

control of the vehicle’s direction and help keep it on course.

Independent studies conducted by the National Highway

Traffic Safety Administration, the Insurance Institute for

Highway Safety, and others have found StabiliTrak to be

highly effective in reducing vehicle crashes. General Motors

offers StabiliTrak systems on many of its passenger car

and light truck models.

See your owner's manual for additional information about

the operation of StabiliTrak.

Q. How do I use StabiliTrak?

A. StabiliTrak operates independently of the driver. You

should continue to drive your StabiliTrak equipped

vehicle with caution and care. GM’s StabiliTrak system,

StabiliTrak, is designed to be as seamless as possible in

operation, to be part of the overall vehicle response and to

make a good vehicle better

Q. How does StabiliTrak work?

A. StabiliTrak has the ability to apply control forces to

the vehicle independent of the driver. StabiliTrak uses

sensors to continuously compare the path indicated by

the steering wheel position to the vehicle’s actual path. If

a discrepancy is detected, StabiliTrak selectively controls

vehicle brakes and engine torque to create a yaw moment

that helps restore the vehicle’s actual path to the path

indicated by the steering wheel position. StabiliTrak has

the ability to help correct both understeer (where the

vehicle is not turning as much as the steering wheel

position indicates) and oversteer (where the vehicle is

turning more than the steering wheel position indicates).

The illustration at right shows how selective braking at a

particular wheel can create a compensating yaw moment

to help restore the vehicle’s actual path to the path

indicated by the steering wheel position.

Q. Will a tire change affect StabiliTrak?

A. Use of tires other than original equipment may affect

StabiliTrak performance. StabiliTrak is designed to make

the best use of available traction. The performance

characteristics of the original equipment tires are part of

the overall system effectiveness. When you replace tires

check the recommendations in your owner's manual. On

GM vehicles, the original equipment tires have a “TPC”

(Tire Performance Criteria) code on the sidewall. Replacing

the tires with the same “TPC” code will help assure proper

StabiliTrak performance.

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