Page 656 of 748

656 8-2. Steps to take in an emergency
RX350_U_OM48E90U WA R N I N G ■
When using the compact spare tire ●
Remember that the compact spare tire provid ed is specifically designed for use with
your vehicle. Do not use your compact spare tire on another vehicle. ●
Do not use more than one compact spare tire simultaneously. ●
Replace the compact spare tire with a standard tire as soon as possible. ●
Avoid sudden acceleration, ab rupt steering, sudden bra king and shifting operations
that cause sudden engine braking. ■
When the compact spare tire is attached
The vehicle speed may not be correctly detected, and the following systems may not
operate correctly:
Also, not only can the following system not be utilized fully, but it may even negatively
affect the drive-train components:
• AWD system (AWD models) ■
Speed limit when using the compact spare tire
Do not drive at speeds in excess of 50 mph (80 km/h) when a compact spare tire is
installed on the vehicle.
The compact spare tire is not designed for driving at high speeds. Failure to observe
this precaution may lead to an accid ent causing death or serious injury.■
After using the tools and jack
Before driving, make sure all the tools and jack are securely in place in their storage
location to reduce the possibility of personal injury during a collision or sudden brak-
ing.• ABS & Brake assist
•VSC
•TRAC
• Trailer Sway Control
•EPS
• VDIM (if equipped)
• Adaptive Variable Suspension System
(if equipped)
• Cruise control (if equipped)
• Dynamic radar cruise control (if
equipped)
• Dynamic radar cruise control with full-
speed range (if equipped)
• PCS (Pre-Collision System) (if
equipped) • LDA (Lane Departure Alert with
steering control) (if equipped)
• LKA (Lane-keeping Assist) (if
equipped)
• Automatic High Beam (if equipped)
• AFS (Adaptive Front-lighting System)
(if equipped)
• Tire pressure warning system
• Intuitive parking assist (if equipped)
• Lexus parking assist monitor (if
equipped)
• Panoramic view monitor (if equipped)
• BSM (Blind Spot Monitor) (if
equipped)
• Navigation system (if equipped)
Page 657 of 748
6578-2. Steps to take in an emergency
8
When trouble arises
RX350_U_OM48E90U NOTICE ■
Be careful when driving over bumps with the compact spare tire installed on the vehi-
cle
When driving with the compact spare tire inst alled, the vehicle height will be different
than when driving with standard tires. Be careful when driving over uneven road sur-
faces, etc. ■
Driving with tire chains and the compact spare tire
Do not fit tire chains to the compact spare tire.
Tire chains may damage the vehicle body and adversely affect driving performance.■
When replacing the tires
When removing or fitting the wheels, tires or the tire pressure warning valve and trans-
mitter, contact your Lexus dealer as the tire pressure warning valve and transmitter
may be damaged if not handled correctly.
Page 680 of 748

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)
Page 681 of 748
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)
Page 686 of 748
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
Page 687 of 748

6879-1. Specifications
9
Vehicle specifications
RX350_U_OM48E90U Ti r e s i z e ( P. 6 8 9 )
DOT and Tire Identification Number (TIN) ( P. 6 8 8 )
Location of treadwear indicators ( P. 5 8 4 )
Tire ply composition and materials Plies are layers of rubber-coated parallel co rds. 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 tire and the tube maintains the air pressure.
Load limit at maximum cold tire inflation pressure ( P. 5 8 7 )
Maximum cold tire inflation pressure ( P. 6 8 0 )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 tires or all season tires ( P. 5 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” A compact spare tire is identified by the phrase “TEMPORARY USE ONLY” molded
on its sidewall. This tire is desi gned for temporary emergency use only.1
2
3
4
5
6
7
8
9
10
11
Page 731 of 748
731What to do if... (Troubleshooting)
RX350_U_OM48E90U ●
Stop the vehicle in a safe place and replace the flat tire with the spare tire.
( P. 6 4 6 )●
Try the procedure for when the vehicle becomes stuck in mud, dirt, or snow.
( P. 6 7 1 )When a problem has occurred If you have a flat tire
The vehicle becomes stuck
Page 743 of 748

743Alphabetical index
RX350_U_OM48E90U Seats
Adjustment ............................................. 152
Adjustment precautions .................. 152
Child seats/child restraint
system installation.............................. 57
Cleaning .................................................. 561
Driving position memory ................ 162
Folding down the rear
seatbacks ............................................. 153
Front seat heaters ............................. 506
Head restraint ........................................167
Power easy access system ............ 162
Properly sitting in the seat ................ 28
Rear seat heaters .............................. 507
Seat position memory....................... 162
Seat ventilators ................................... 507
Sensor
Automatic headlight system ......... 243
Camera sensor ................................... 264
Inside rear view mirror ...................... 172
Intuitive parking assist ..................... 330
Radar sensor ........................................264
Rain-sensing windshield
wipers ................................................... 252
Touchless sensor .................................132 Service reminder indicators ............... 80
Shift lever ...................................... 225, 229
Side airbags ................................................ 37
Side doors ................................................. 124
Side marker lights
Light switch............................................. 241
Replacing light bulbs ........................ 610
Side mirrors .............................................. 173
Adjusting and folding ........................ 173
BSM (Blind Spot Monitor) ...........355
Side turn signal lights
Replacing light bulbs ........................ 610
Turn signal lever ................................. 234
Smart access system with
push-button start................................. 146
Antenna location..................................146
Entry functions ........................... 124, 130
Starting the engine ............................ 220
Snow tires ................................................ 382
Spare tire
Inflation pressure............................... 680
Storage location ................................. 647
* : Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.