Page 617 of 777

6167-3. Do-it-yourself maintenance
RX350/RX350L_U
When replacing wheels, care should be ta ken to ensure that they are equivalent
to those removed in load capacity, diameter, rim width and inset
*.
Replacement wheels are available at your Lexus dealer.
*: Conventionally referre d to as “offset”.
Lexus does not recommend using the following:
●Wheels of different sizes or types
●Used wheels
●Bent wheels that have been straightened
●Use only Lexus wheel nuts and wrenches designed for use with your alumi-
num wheels.
●When rotating, repairing or changing your tires, check that the wheel nuts are
still tight after driving 1000 miles (1600 km).
●Be careful not to damage the aluminum wheels when using tire chains.
●Use only Lexus genuine balance weights or equivalent and a plastic or rubber
hammer when balancing your wheels.
■When replacing wheels
The wheels of your vehicle are equipped with tire pressure warning valves and transmit-
ters that allow the tire pressure warning system to provide advance warning in the event
of a loss in tire inflation pressure. Whenever wheels are replaced, tire pressure warning
valves and transmitters must be installed. (P. 605)
Wheels
If a wheel is bent, cracked or heavily corroded, it should be replaced. Other-
wise, the tire may separate from the wheel or cause a loss of handling control.
Wheel selection
Aluminum wheel precautions
Page 717 of 777

7169-1. Specifications
RX350/RX350L_U
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pressure
Tire pressure when the vehicle has been parked for
three hours or more, or has no t been driven more than 1
mile or 1.5 km un der that condition
Maximum inflation pres-
sureThe maximum cold inflated pr essure to which a tire may
be inflated, shown on the sidewall of the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a manu-
facturer
Accessory weight
The combined weight (in exce ss of those standard items
which may be replaced) of automatic transmission,
power steering, power brakes, power windows, power
seats, radio and heater, to the extent that these items are
available as factory-installed equipment (whether
installed or not)
Curb weight
The weight of a motor vehicle with standard equipment,
including the maximum capacity of fuel, oil and coolant,
and if so equipped, air co nditioning and additional
weight optional engine
Maximum loaded vehicle
weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight150 lb. (68 kg) times the numb er of occupants specified
in the second column of Table 1* that follows
Occupant distributionDistribution of occupants in a vehicle as specified in the
third column of Table 1
* below
Page 718 of 777

7179-1. Specifications
9
Vehicle specifications
RX350/RX350L_U
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 re place, not previously con-
sidered 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 desi gnated seating capacity
Vehicle maximum load on
the tireThe 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
Weather sideThe surface area of the rim not covered by the inflated
tire
BeadThe part of the tire that is made of steel wires, wrapped
or reinforced by ply cords an d that is shaped to fit the
rim
Tire related termMeaning
Page 774 of 777

773Alphabetical index
RX350/RX350L_U
Tachometer ............................................... 86
Tail lightsLight switch ........................................... 252
Replacing light bulbs ....................... 630
Talk switch ....................................465, 487
Telephone switch.................................. 465
Theft deterrent system Alarm........................................................... 77
Engine immobilizer system.............. 74
Tire inflation pressure Maintenance data ..............................704
Warning light ...................................... 656
Tire information ..................................... 709 Glossary ...................................................716
Size .............................................................. 712
Tire identification number................. 711
Uniform Tire Quality Grading.................................................714
Tire pressure warning system Initializing............................................... 605
Installing tire pressure warning valves and transmitters ............... 605
Registering ID codes ...................... 606
Warning light ...................................... 656 Tires ........................................................... 604
Chains .....................................................385
Checking ...............................................604
Glossary................................................... 716
If you have a flat tire ..........................666
Inflation pressure......................613, 704
Replacing ...............................................666
Rotating tires ........................................604
Size ........................................................... 704
Snow tires ..............................................386
Spare tire....................................666, 704
Tire identification number ................. 711
Tire pressure warning system .... 605
Uniform Tire Quality Grading ................................................ 714
Warning light .......................................656
Tools ........................................................... 667
Top tether strap ........................................70
Total load capacity............................... 698
Touchless power back door .............. 132
Towing Dinghy towing ..................................... 230
Emergency towing ........................... 646
Towing eyelet ...................................... 649
Trailer Sway Control ....................... 378
Trailer towing............................. 215, 229
TRAC (Traction Control)................. 378
Traction Control (TRAC)................. 378
Trailer Sway Control .......................... 378
Trailer towing ................................215, 229
T
Page 776 of 777

775Alphabetical index
RX350/RX350L_U
WasherChecking............................................... 603
Preparing and checking before winter ................................... 384
Switch.............................................261, 267
Washing and waxing........................... 576
Weights Cargo capacity ........................210, 698
Load limits................................... 213, 698
Weights.................................................. 698
Wheels ........................................................616 Replacing wheels ................................ 616
Size ............................................................704
Window glasses ......................................187
Window lock switch ..............................187
Windows Power windows ................................... 187
Rear window defogger.................... 514
Washer .........................................261, 267
Windshield wiper de-icer .................. 513
Windshield wiper inserts .....................621 Windshield wipers ................................. 261
Intermittent windshield wipers ...... 261
Rain-sensing windshield wipers................................................... 262
Replacing a windshield wiper insert ....................................................... 621
Winter driving tips ............................... 384
Wireless charger.................................. 544
Wireless communication ....... 443, 453
Wireless remote control ..................... 120 Battery-saving function .................... 147
Locking/Unlocking ............................120
Panic mode ..............................................121
Replacing the battery ...................... 623
WMA disc................................................ 427
XM
® Satellite Radio .......................... 420
X