Page 522 of 688

▫Adding Washer Fluid..................545
▫Exhaust System......................545
▫Cooling System......................547
▫Brake System........................553
▫Manual Transmission — If Equipped.......555
▫Automatic Transmission — If Equipped.....556
▫Appearance Care And Protection From
Corrosion...........................558
LIFTING A VEHICLE...................565
TIRE SAFETY INFORMATION.............567
▫Tire Markings........................567
▫Tire Identification Number (TIN)...........570
▫Tire Terminology And Definitions..........572▫Tire Loading And Tire Pressure...........573
TIRES — GENERAL INFORMATION........578
▫Tire Pressure........................578
▫Tire Inflation Pressures.................580
▫Tire Pressures For High Speed Operation. . . .581
▫Radial Ply Tires......................582
▫Tire Types...........................582
▫Run Flat Tires — If Equipped.............584
▫Spare Tires — If Equipped...............585
▫Tire Spinning........................585
▫Tread Wear Indicators..................586
▫Life Of Tire.........................586
▫Replacement Tires.....................587
520 MAINTAINING AND CARING FOR YOUR VEHICLE
Page 527 of 688

Severe Duty All Models
Change Engine Oil at 4,000 miles (6,500 km) if the vehicle
is operated in a dusty and off road environment or is
operated predominately at idle or only very low engine
RPM’s. This type of vehicle use is considered Severe Duty.
NOTE:The Oil Change Indicator will not illuminate
under these conditions.
Once A Month Or Before A Long Trip:
•Check engine oil level.
•Check windshield washer fluid level.
•Check the tire inflation pressures and look for unusual
wear or damage.
•Check the fluid levels of the coolant reservoir, and
brake master cylinder reservoir, and fill as needed.
•Check function of all interior and exterior lights.Required Maintenance Intervals.
At Every Oil Change Interval As Indicated By Oil
Change Indicator System:
Change oil and filter.
Inspect battery and clean and tighten terminals as
required.
Inspect brake pads, shoes, rotors, drums, and hoses.
Inspect engine cooling system protection and hoses.
Check and adjust hand brake.
Inspect exhaust system.
Inspect engine air filter if using in dusty or off-road
conditions.
Refer to the “Maintenance Chart” on the following page
for the required maintenance intervals.
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MAINTAINING AND CARING FOR YOUR VEHICLE 525
Page 569 of 688
TIRE SAFETY INFORMATION
Tire MarkingsNOTE:
•P (Passenger) — Metric tire sizing is based on U.S.
design standards. P-Metric tires have the letter “P”
molded into the sidewall preceding the size designa-
tion. Example: P215/65R15 95H.
•European — Metric tire sizing is based on European
design standards. Tires designed to this standard have
the tire size molded into the sidewall beginning with
the section width. The letterPis absent from this tire
size designation. Example: 215/65R15 96H.
•LT (Light Truck) — Metric tire sizing is based on U.S.
design standards. The size designation for LT-Metric
tires is the same as for P-Metric tires except for the
letters “LT” that are molded into the sidewall preced-
ing the size designation. Example: LT235/85R16.
1 — U.S. DOT Safety Standards
Code (TIN)4 — Maximum Load
2 — Size Designation 5 — Maximum Pressure
3 — Service Description 6 — Treadwear, Traction and
Temperature Grades9
MAINTAINING AND CARING FOR YOUR VEHICLE 567
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•Temporary spare tires are designed for temporary
emergency use only. Temporary high pressure com-
pact spare tires have the letter “T” or “S” molded into
the sidewall preceding the size designation. Example:
T145/80D18 103M.•High flotation tire sizing is based on U.S. design
standards and it begins with the tire diameter molded
into the sidewall. Example: 31x10.5 R15 LT.
Tire Sizing Chart
EXAMPLE:
Example Size Designation: P215/65R15XL 95H, 215/65R15 96H, LT235/85R16C, T145/80D18 103M, 31x10.5 R15 LT
P= Passenger car tire size based on U.S. design standards, or
....blank....= Passenger car tire based on European design standards, or
LT= Light truck tire based on U.S. design standards, or
TorS= Temporary spare tire or
31= Overall diameter in inches (in)
215, 235, 145= Section width in millimeters (mm)
65, 85, 80= Aspect ratio in percent (%)
– Ratio of section height to section width of tire, or
10.5= Section width in inches (in)
568 MAINTAINING AND CARING FOR YOUR VEHICLE
Page 571 of 688
EXAMPLE:
R= Construction code
–Rmeans radial construction, or
–Dmeans diagonal or bias construction
15, 16, 18= Rim diameter in inches (in)
Service Description:
95= Load Index
– A numerical code associated with the maximum load a tire can carry
H= Speed Symbol
– A symbol indicating the range of speeds at which a tire can carry a load corresponding to
its load index under certain operating conditions
– The maximum speed corresponding to the speed symbol should only be achieved under
specified operating conditions (i.e., tire pressure, vehicle loading, road conditions, and
posted speed limits)
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MAINTAINING AND CARING FOR YOUR VEHICLE 569
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EXAMPLE:
Load Identification:
Absence of the following load identification symbols on the sidewall of the tire indicates a Standard Load (SL)
tire:
•XL= Extra load (or reinforced) tire, or
•LL= Light load tire or
•C, D, E, F, G= Load range associated with the maximum load a tire can carry at a specified pressure
Maximum Load– Maximum load indicates the maximum load this tire is designed to carry
Maximum Pressure– Maximum pressure indicates the maximum permissible cold tire inflation pressure for this
tire
Tire Identification Number (TIN)
The TIN may be found on one or both sides of the tire,
however, the date code may only be on one side. Tires
with white sidewalls will have the full TIN, including the
date code, located on the white sidewall side of the tire.Look for the TIN on the outboard side of black sidewall
tires as mounted on the vehicle. If the TIN is not found on
the outboard side, then you will find it on the inboard
side of the tire.
570 MAINTAINING AND CARING FOR YOUR VEHICLE
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Tire Terminology And Definitions
Term Definition
B-PillarThe vehicle B-Pillar is the structural member of the body located
behind the front door.
Cold Tire Inflation PressureCold tire inflation pressure is defined as the tire pressure after
the vehicle has not been driven for at least three hours, or driven
less than 1 mile (1.6 km) after sitting for a minimum of three
hours. Inflation pressure is measured in units of PSI (pounds per
square inch) or kPa (kilopascals).
Maximum Inflation PressureThe maximum inflation pressure is the maximum permissible
cold tire inflation pressure for this tire. The maximum inflation
pressure is molded into the sidewall.
Recommended Cold Tire Inflation PressureVehicle manufacturer’s recommended cold tire inflation pressure
as shown on the tire placard.
Tire PlacardA label permanently attached to the vehicle describing the vehi-
cle’s loading capacity, the original equipment tire sizes and the
recommended cold tire inflation pressures.
572 MAINTAINING AND CARING FOR YOUR VEHICLE
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Tire Loading And Tire Pressure
Tire And Loading Information Placard Location
NOTE:The proper cold tire inflation pressure is listed on
the driver ’s side B-Pillar or the rear edge of the driver’s
side door.
Example Tire Placard Location (Door)
Example Tire Placard Location (B-Pillar)
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MAINTAINING AND CARING FOR YOUR VEHICLE 573