Get Servicing And Maintenance -> Department Of Transportation Uniform Tire Quality Grades Guide for Fiat 500 L 4 Door First Generation (2012-2022)

SERVICING AND MAINTENANCE 283

The suggested rotation method is the “forward cross”

shown in the following diagram. This rotation pattern does

not apply to some directional tires that must not be

reversed.

DEPARTMENT OF TRANSPORTATION UNIFORM

TIRE QUALITY GRADES

The following tire grading categories were established

by the National Highway Traffic Safety Administration.

The specific grade rating assigned by the tire’s manu-

facturer in each category is shown on the sidewall of the

tires on your vehicle.

All passenger vehicle tires must conform to Federal

safety requirements in addition to these grades.

Treadwear

The Treadwear grade is a comparative rating, based on

the wear rate of the tire when tested under controlled

conditions on a specified government test course. For

example, a tire graded 150 would wear one and one-half

times as well on the government course as a tire graded

100. The relative performance of tires depends upon the

actual conditions of their use, however, and may depart

significantly from the norm due to variations in driving

habits, service practices, and differences in road charac-

teristics and climate.

8

Tire Rotation

284 SERVICING AND MAINTENANCE

Traction Grades

Sustained high temperature can cause the material of

the tire to degenerate and reduce tire life, and excessive

temperature can lead to sudden tire failure. The grade C

corresponds to a level of performance, which all pas-

senger vehicle tires must meet under the Federal Motor

Vehicle Safety Standard No. 109. Grades B and A

represent higher levels of performance on the laboratory

test wheel, than the minimum required by law.

The Traction grades, from highest to lowest, are AA, A,

B, and C. These grades represent the tire’s ability to stop

on wet pavement, as measured under controlled condi-

tions on specified government test surfaces of asphalt

and concrete. A tire marked C may have poor traction

performance.

WARNING!

The traction grade assigned to this tire is based on

straight-ahead braking traction tests, and does not

include acceleration, cornering, hydroplaning, or

peak traction characteristics.

The temperature grade for this tire is established for

a tire that is properly inflated and not overloaded.

Excessive speed, under-inflation, or excessive load-

ing, either separately or in combination, can cause

heat buildup and possible tire failure.

Temperature Grades

The Temperature grades are A (the highest), B, and C,

representing the tire’s resistance to the generation of

heat and its ability to dissipate heat, when tested under

controlled conditions on a specified indoor laboratory

test wheel.

SERVICING AND MAINTENANCE 285

VEHICLE STORAGE

•

Anytime you store your vehicle, or keep it out of service

(i.e., vacation) for two weeks or more, run the air condi-

tioning system at idle for about five minutes in the fresh air

and high blower setting. This will ensure adequate system

lubrication to minimize the possibility of compressor dam-

age when the system is started again.

If you will not be using your vehicle for more than 21 days,

you may want to take steps to preserve your battery.

NOTE: When the vehicle has not been started or driven

for at least 30 days, an Extended Park Start Procedure is

required to start the vehicle. Refer to “Starting The Engine”

in “Starting And Operating” for further information.

BODYWORK

8

Protection From Atmospheric Agents

Vehicle body care requirements vary according to geographic

locations and usage. Chemicals that make roads passable in

snow and ice and those that are sprayed on trees and road

surfaces during other seasons are highly corrosive to the metal

in your vehicle. Outside parking, which exposes your vehicle

to airborne contaminants, road surfaces on which the vehicle

is operated, extreme hot or cold weather and other extreme

conditions will have an adverse effect on paint, metal trim,

and underbody protection.

Negative (-) Battery Cable

1 — Release Button

2 — Negative (-) Cable Connector

3 — Negative (-) Post

• Disconnect the negative (-) connector from the battery

post and be sure that the battery is fully charged , press

button to detach connector from negative (-) post.

Servicing And Maintenance -> Department Of Transportation Uniform Tire Quality Grades for Your Fiat 500 L 4 Door First Generation (2012-2022)

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