2011 LEXUS RX350 wheel size

612
6-1. Specifications
Tire size
nTypical tire size information
The illustration indicates typical
tire size.
Ti r e u s e
(P = Passenger car,
T = Temporary use)
Section width (millimeters)
Aspect ratio
(tire height to section width)
Tire construction code
(R = Radial, D = Diagonal)
Wheel diameter (inches)
Load index (2 digits or 3 digits)
Speed symbol
(alphabet with one letter)
nTire dimensions
Section width
Ti r e h e i g h t
Wheel diameter

616
6-1. Specifications
Tire related termMeaning
Occupant distributionDistribution of occupants in a vehicle as specified in
the third column of Table 1* below
Production options
weight
The combined weight of installed regular production
options weighing over 5 lb. (2.3 kg) in excess of the
standard items which they replace, not previously
considered in curb weight or accessory weight,
including heavy duty brakes, ride levelers, roof rack,
heavy duty battery, and special trim
RimA metal support for a tire or a tire and tube assembly
upon which the tire beads are seated
Rim diameter
(Wheel diameter)Nominal diameter of the bead seat
Rim size designationRim diameter and width
Rim type designationThe industry manufacturer's designation for a rim by
style or code
Rim widthNominal distance between rim flanges
Vehicle capacity weight
(Total load capacity)
The rated cargo and luggage load plus 150 lb. (68
kg) times the vehicle's designated seating capacity
Vehicle maximum load on
the tire
The load on an individual tire that is determined by
distributing to each axle its share of the maximum
loaded vehicle weight, and dividing by two
Vehicle normal load on
the tire
The load on an individual tire that is determined by
distributing to each axle its share of curb weight,
accessory weight, and normal occupant weight (dis-
tributed in accordance with Table 1* below), and
dividing by two
We a t h e r s i d eThe surface area of the rim not covered by the
inflated tire

EXPLANATION OF MAINTENANCE ITEMS
MAINTENANCE
Scheduled Maintenance Log72
Timing Chain
The timing chain requires no periodic
inspection.
Tire-Pressure Warning Sensors
A tire-pressure sensor is mounted on
each full-size wheel. These sensors
do not require periodic maintenance.
When a sensor’s long-life lithium bat-
tery becomes discharged, the battery
should be replaced by a qualified
technician following procedures in
Lexus service and repair publications.
Tire Rotation
Tires should be rotated according
to the instructions in your Owner’s
Manual. When rotating tires, check
tire pressure and check tires for dam-
age and uneven wear. If the spare is
not rotated, check the condition and
pressure of the spare.
Transfer Case Oil
Check for correct oil level and
inspect each component for signs of
leakage. If you discover any leakage,
have it repaired immediately by a
qualified technician. For correct oil,
refer to your Owner’s Manual.
Transmission
The transmission and transmission
fluid are a completely sealed unit.
Therefore, periodic checks and
replacement of the transmission fluid
are not required, and there is no dip-
stick on the transmission. Any repairs
that require adding or replacing fluid
should be performed by a qualified
technician following precedures in
Lexus service and repair publications.
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