2015 LEXUS RX350 tires

8156-1. Specifications
6
Vehicle specifications Tires and wheels
Type A
Type BTi r e s i z e P235/60R18 102V, T165/90D18 107M (spare)
Tire inflation pressure
(recommended cold tire
inflation pressure) Driving under normal conditions
Front:
32 psi (220 kPa, 2.2 kgf/cm 2
or bar)
Rear:
32 psi (220 kPa, 2.2 kgf/cm 2
or bar)
Spare:
60 psi (420 kPa, 4.2 kgf/cm 2
or bar)
Wheel size 18  7 1 /2J, 18  4T (spare)
Wheel nut torque 76 ft•lbf (103 N•m, 10.5 kgf•m)
Ti r e s i z e P235/60R18 102V
Tire inflation pressure
(recommended cold tire
inflation pressure) Driving under normal conditions
Front:
32 psi (220 kPa, 2.2 kgf/cm 2
or bar)
Rear:
32 psi (220 kPa, 2.2 kgf/cm 2
or bar)
Spare:
32 psi (220 kPa, 2.2 kgf/cm 2
or bar)
Wheel size 18  7 1 /2J
Wheel nut torque 76 ft•lbf (103 N•m, 10.5 kgf•m)

8166-1. Specifications
Ty p e C
Ty p e DTi r e s i z e P235/55R19 101V, T165/90D18 107M (spare)
Tire inflation pressure
(recommended cold tire
inflation pressure) Driving under normal conditions
Front: 32 psi (220 kPa, 2.2 kgf/cm 2
or bar)*
Rear: 32 psi (220 kPa, 2.2 kgf/cm 2
or bar)*
Spare: 60 psi (420 kPa, 4.2 kgf/cm 2
or bar)*: When driving at high speeds above 100 mph (160
km/h), in countries where such speeds are permitted
by law, add 1 psi (10 kPa, 0.1 kgf/cm 2
or bar) to the
front tires, 3 psi (20 kPa, 0.2 kgf/cm 2
or bar) to the
rear tires. Never exceed the maximum cold tire infla-
tion pressure indicated on the tire sidewall.
Wheel size 19  7 1 /2J, 18  4T (spare)
Wheel nut torque 76 ft•lbf (103 N•m, 10.5 kgf•m)
Ti r e s i z e P235/55R19 101V
Tire inflation pressure
(recommended cold tire
inflation pressure) Driving under normal conditions
Front: 32 psi (220 kPa, 2.2 kgf/cm 2
or bar)
Rear: 32 psi (220 kPa, 2.2 kgf/cm 2
or bar)
Spare: 32 psi (220 kPa, 2.2 kgf/cm 2
or bar)
When driving at high speeds above 100 mph (160 km/h),
in countries where such speeds are permitted by law, add
1 psi (10 kPa, 0.1 kgf/cm 2
or bar) to the front tires, 3 psi
(20 kPa, 0.2 kgf/cm 2
or bar) to the rear tires. Never
exceed the maximum cold tire inflation pressure indi-
cated on the tire sidewall.
Wheel size 19  7 1 /2J
Wheel nut torque 76 ft•lbf (103 N•m, 10.5 kgf•m)

8226-1. Specifications
Tire ply composition and materials Plies are layers of rubber-coated parallel cords. Cords are the strands
which form the plies in a tire.
Radial tires or bias-ply tires A radial tire has “RADIAL” on the sidewall. A tire not marked “RADIAL” is
a bias-ply tire.
TUBELESS or TUBE TYPE A tubeless tire does not have a tube and air is directly put into the tire. A
tube type tire has a tube inside the ti re and the tube maintains the air pres-
sure.
Load limit at maximum cold tire inflation pressure (  P. 6 8 8 )
Maximum cold tire inflation pressure (  P. 815)This means the pressure to which a tire may be inflated.
Uniform tire quality grading For details, see “Uniform tire quality grading” that follows.
Summer tire or all season tire (  P. 6 8 8 )An all season tire has “M+S” on the sidewall. A tire not marked “M+S” is a
summer tire.
“TEMPORARY USE ONLY” (  P. 783)A compact spare tire is identified by the phrase “TEMPORARY USE
ONLY” molded on its sidewall. This ti re is designed for temporary emer-
gency use only.

8256-1. Specifications
6
Vehicle specifications Tire section names
Bead
Sidewall
Shoulder
Tread
Belt
Inner liner
Reinforcing rubber
Carcass
Rim lines
Bead wires
Chafer
Uniform Tire Quality Grading
This information has b een prepared in accorda nce with regulations
issued by the National Highway Traf fic Safety Administration of the U.S.
Department of Transportation.
It provides the purchasers and/or prospective purchasers of Lexus vehi-
cles with information on uniform tire quality grading.
Your Lexus dealer will help answer an y questions you may have as you read
this information.
■ DOT quality grades
All passenger vehicle tires must co nform to Federal Safety Require-
ments in addition to these grades. Quality grades can be found where
applicable on the tire sidewall between tread shoulder and maximum
section width.
For example: Treadwear 200 Traction AA Temperature A

8266-1. Specifications
■ Treadwear
The treadwear grade is a comparative rating based on the wear rate of
the tire when tested under controll ed conditions on a specified gov-
ernment test course. For example, a tire graded 150 would wear one and a half (1 - 1 /2) times as
well on the government course as a tire graded 100.
The relative performance of tires de pends upon the actual conditions of
their use, however, and may depart significantly from the norm due to varia-
tions in driving habits, service practices and differences in road characteris-
tics and climate.
■ Traction AA, A, B, C
The traction grades, from highest to lowest, are AA, A, B and C, and
they represent the tire's ability to stop on wet pavement as measured
under controlled condit ions on specif ied 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 braking
(straight ahead) traction tests and does not include cornering (turning) trac-
tion.

8276-1. Specifications
6
Vehicle specifications ■ Temperature A, B, C
The temperature grades are A (the hi ghest), 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. Sustained high temperature can cause the material of the tire to degenerate
and reduce tire life, and excessive temperature can lead to sudden tire fail-
ure.
The grade C corresponds to a level of performance which all passenger car
tires must meet under the Federal Mo tor 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.
Warning: The temperature grades for this tire are established for a tire that
is properly inflated and not overloaded.
Excessive speed, underinflation, or excess ive loading, either separately or in
combination, can cause heat build up and possible tire failure.

8476
Vehicle specifications 6-3. Initialization
Items to initialize Item When to initialize Reference
Power back door • After reconnecting or changing the
battery
• After changing a fuse P. 5 6
Maintenance data
(U.S.A. only) After the maintenance is performed P. 6 5 7
Tire pressure warning
system • When rotating the tires
• When changing tire pressure (such
as when changing traveling speed,
load weight, etc.)
• When changing the tire size P. 6 8 5The following items must be initialized for normal system operation in cases
such as after the battery is reconnected, or maintenance is performed on
the vehicle.

878Alphabetical index
Rear view mirror
Compass ...............................................638
Inside rear view mirror....................... 92
Outside rear view mirrors ............... 95
Rear view monitor
system* ...................................... 255, 264
Rear window defogger* ..................... 361
Rear window wiper .............................. 224
Remote Touch*
Replacing
Electronic key battery........................701
Fuses ........................................................ 703
Light bulbs............................................... 719
Tires ...........................................................774
Wireless remote control
battery ....................................................701
Reporting safety defects for
U.S. owners ......................................... 850
Reset the maintenance data............. 657
Roof luggage carrier ........................... 296
Safety Connect*.................................... 642
Scuff lights ................................................595
Seat belts
Adjusting the seat belt........................ 84
Automatic locking retractor............ 85
Child restraint system
installation ..............................................141
Cleaning and maintaining
the seat belts .....................................654
Emergency locking retractor ........ 85
How to wear your seat belt............. 83
How your child should wear
the seat belt .......................................... 85 Pregnant women,
proper seat belt use .........................87
Reminder light...................................... 747
Seat belt extender ................................ 86
Seat belt pretensioners ..................... 84
Seat heaters ............................................ 620
Seat position memory.............................76
Seat ventilators ...................................... 620
Seating capacity..................................... 301
Seats
Adjustment ..................................... 68, 72
Adjustment
precautions .................................... 71, 74
Child seats/child restraint
system installation.............................. 141
Cleaning ................................................ 653
Flatting seat backs ................................69
Head restraint .......................................... 81
Power easy access system ..............78
Properly sitting in the seat................. 117
Seat heaters ......................................... 620
Seat position memory......................... 76
Seat ventilators ................................... 620
Service reminder indicators .............194
Shift lever
Automatic transmission ...........171, 178
If the shift lever cannot be
shifted from P..................................... 791
Shift lever light ....................................... 595
Shift lock system...................................... 791
Side airbags ............................................... 119
Side marker lights
Switch .......................................................... 211
Side mirror
Adjusting and folding ......................... 95
Mirror position memory .................... 76S