2016 LEXUS RX350 tire size

640 8-2. Steps to take in an emergency
RX350_U_OM48E90U WA R N I N G ■
Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly when cold and
inflated to the inflation pressure recomm ended by the vehicle manufacturer on the
vehicle placard or tire inflation pressure la bel (tire and load information label). (If your
vehicle has tires of a different size than the size indicated on the vehicle placard or tire
inflation pressure label [tire and load in formation label], you should determine the
proper tire inflation pressure for those tires.)
As an added safety feature, your vehicle ha s been equipped with a tire pressure moni-
toring system (TPMS-tire pressure warning system) that illuminates a low tire pressure
telltale (tire pressure warning light) when on e or more of your tires is significantly
under-inflated. Accordingly, when the low ti re pressure telltale (tire pressure warning
light) illuminates, you should stop and check your tires as soon as possible, and inflate
them to the proper pressure. Driving on a significantly under-inflated tire causes the
tire to overheat and can lead to tire failure. Under-inflation also reduces fuel efficiency
and tire tread life, and ma y affect the vehicle’s handling and stopping ability.
Please note that the TPMS (tire pressure wa rning system) is not a substitute for proper
tire maintenance, and it is the driver’s resp onsibility to maintain correct tire pressure,
even if under-inflation has no t reached the level to trigger illumination of the TPMS low
tire pressure telltale (tire pressure warning light).
Your vehicle has also been equipped with a TPMS (tire pressure warning system) mal-
function indicator to indicate when the system is not operating properly. The TPMS
(tire pressure warning system) malfunction indi cator is combined with the low tire pres-
sure telltale (tire pressure warning light). When the system detects a malfunction, the
telltale will flash for approximately one minu te and then remain continuously illumi-
nated. This sequence will cont inue upon subsequent vehicl e start-ups as long as the
malfunction exists. When the malfunction indicator is illuminated, the system may not
be able to detect or signal low tire pressure as intended.
TPMS (tire pressure warning system) malfun ctions may occur for a variety of reasons,
including the installation of replacement or alternate tires or wheels on the vehicle that
prevent the TPMS (tire pressure warning system) from functioning properly. Always
check the TPMS (tire pressure warning syst em) malfunction telltale after replacing one
or more tires or wheels on your vehicle to ensure that the replacement or alternate
tires and wheels allow the TPMS (tire pressure warning system) to continue to function
properly.
NOTICE ■
To ensure the tire pressure warning system operates properly
Do not install tires with different specificatio ns or makers, as the tire pressure warning
system may not operate properly.

680 9-1. Specifications
RX350_U_OM48E90U * : Minimum pedal clearance when depressed wi th a force of 110 lbf (490 N, 50.0 kgf)
while the engine is running. 
Ty p e ABrakes Pe d a l c l e a r a n c e
* 3.4 in. (86 mm) Min.
Brake pad wear limit 0.04 in. (1.0 mm)
Pedal free play 0.04 — 0.24 in. (1.0 — 6.0 mm)
Fluid type FMVSS No. 116 DOT 3 or SAE J1703
Steering Free play Less than 1.2 in. (30 mm)
Tires and wheels Ti r e s i z e 235/65R18 106V, T165/90D18 107M (spare)
Tire inflation pressure
(Recommended cold tire
inflation pressure) 
Front tire
33 psi (230 kPa, 2.3 kgf/cm 2
or bar) 
Rear tire
33 psi (230 kPa, 2.3 kgf/cm 2
or bar) 
Spare tire
60 psi (420 kPa, 4.2 kgf/cm 2
or bar)
Driving at high speeds (above 100 mph [160 km/h])
(in countries where such speeds are permitted by
law)
Add 5 psi (30 kPa, 0.3 kgf/cm 2
or bar) to the
front and rear tires. Never exceed the maximum
cold tire inflation pressure indicated on the tire
sidewall.
Wheel size 18  8 J, 18  4 T (spare)
Wheel nut torque 76 ft•lbf (103 N•m, 10.5 kgf•m)

6819-1. Specifications
9
Vehicle specifications
RX350_U_OM48E90U 
Ty p e B Ti r e s i z e 235/55R20 102V, T165/90D18 107M (spare)
Tire inflation pressure
(Recommended cold tire
inflation pressure) 
Front tire
33 psi (230 kPa, 2.3 kgf/cm 2
or bar) 
Rear tire
33 psi (230 kPa, 2.3 kgf/cm 2
or bar) 
Spare tire
60 psi (420 kPa, 4.2 kgf/cm 2
or bar)
Driving at high speeds (above 100 mph [160 km/h])
(in countries where such speeds are permitted by
law)
Add 11 psi (70 kPa, 0.7 kgf/cm 2
or bar) to the
front and rear tires. Never exceed the maximum
cold tire inflation pressure indicated on the tire
sidewall.
Wheel size 20  8 J, 18  4 T (spare)
Wheel nut torque 76 ft•lbf (103 N•m, 10.5 kgf•m)

686 9-1. Specifications
RX350_U_OM48E90U 
Full-size tire 
Compact spare tireTire information Ty p i c a l t i r e s y m b o l s

6899-1. Specifications
9
Vehicle specifications
RX350_U_OM48E90U ■
Typical 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)■
Tire dimensions
Section width
Tire height
Wheel diameterTire size 1
2
3
4
5
6
7
1
2
3

694 9-1. Specifications
RX350_U_OM48E90U 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 con-
sidered in curb weight or accessory weight, including
heavy duty brakes, ride levelers, roof rack, heavy duty
battery, and special trim
Rim A 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 designation Rim diameter and width
Rim type designation The industry manufacturer’s designation for a rim by
style or code
Rim width Nominal 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 dis-
tributing 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 dis-
tributing to each axle its sh are of curb weight, accessory
weight, and normal occupant weight (distributed in
accordance with Table 1
* below), and dividing by two
We a t h e r s i d e The surface area of the rim not covered by the inflated
tire
Bead The part of the tire that is made of steel wires, wrapped
or reinforced by ply cords and that is shaped to fit the
rimTire related term Meaning

712
RX350_U_OM48E90U 9-3. Initialization
Items to initialize The following items must be initialized for normal system operation after such
cases as the battery being reconnecte d, or maintenance being performed on
the vehicle. Item When to initialize Reference
Message indicating mainte-
nance is required (U.S.A. only) • After the maintenance is per-
formed P. 5 6 5
Tire pressure warning system • When changing the tire inflation
pressure by changing traveling
speed
• When changing the tire size
• When rotating the tires P. 5 8 6
Oil maintenance • After the maintenance is per-
formed P. 5 7 7
Power back door • After reconnecting or changing
the battery P. 1 3 8

745Alphabetical index
RX350_U_OM48E90U Outside rear view mirror
switches .................................................173
Paddle shift switches ............. 230, 231
Panoramic moon roof
switches ................................................ 185
Parking brake switch........................235
Power back door opener
and closer switch.....................131, 133
Power window switch ....................... 177
Rear window and outside
rear view mirror
defoggers switch ...........................500
Rear window wiper and
washer switch...................................256
Seat heater switches............506, 507
Seat ventilator switches ................. 507
“SOS” button........................................547
Talk switch ..................................460, 481
Telephone switches ......................... 460
Vehicle-to-vehicle
distance button ..................... 302, 314
VSC OFF switch ...............................376
Window lock switch........................... 177
Windshield wipers and
washer switch.................................. 250 Tachometer ............................................... 85
Tail lights
Light switch............................................. 241
Replacing light bulbs ........................ 610
Talk switch..................................... 460, 481
Telephone switch ................................. 460
Theft deterrent system
Alarm ...........................................................76
Engine immobilizer system ..............74
Tire inflation pressure
Maintenance data............................. 680
Warning light ....................................... 636
Tire information .................................... 686
Glossary................................................. 693
Size .......................................................... 689
Tire identification number ............ 688
Uniform Tire Quality
Grading ................................................691
Tire pressure warning system
Initializing .............................................. 585
Installing tire pressure warning
valves and transmitters............... 585
Registering ID codes ...................... 586
Warning light ....................................... 636 T