low LEXUS RX450H 2016 Owners Manual

5918-1. Specifications
8
Vehicle specifications
RX450h_U_OM0E013U
■Gasoline quality
In very few cases, driveability problems may be caused by th e brand of gasoline you are
using. If driveability problems persist, try ch anging the brand of gasoline. If this does not
correct the problem, consult your Lexus dealer.
■Gasoline quality standards
●Automotive manufacturers in the U.S.A., Europe and Japan have developed a specifi-
cation for fuel quality calle d the World-Wide Fuel Charte r (WWFC), which is expected
to be applied worldwide.
●The WWFC consists of four categories that are based on required emission levels. In
the U.S., category 4 has been adopted.
●The WWFC improves air quality by lowering emissions in vehicle fleets, and improves
customer satisfaction th rough better performance.
■Recommendation of the use of gasoline containing detergent additives
●Lexus recommends the use of gasoline that contains detergent additives to avoid the
build-up of engine deposits.
●All gasoline sold in the U.S.A. contains minimum detergent additives to clean and/or
keep clean intake systems, per EPA’s lowest additives concentration program.
●Lexus strongly recommends the use of Top Tier Detergent Gasoline. For more informa-
tion on Top Tier Detergent Gasoline and a lis t of marketers, please go to the official
website www.toptiergas.com.
Fuel information
You must only use unleaded gasoline.
Select premium unleaded gasoline with an octane rating of 91 (Research
Octane Number 96) or higher required for optimum engine performance.
If 91 octane cannot be obtained, yo u may use unleaded gasoline with an
octane rating as low as 87 (Researc h Octane Number 91). Use of unleaded
gasoline with an octane rating lower than 91 may result in engine knocking
and significantly reduced performance. Persistent knocking can lead to
engine damage and should be correct ed by refueling with higher octane
unleaded gasoline.
At minimum, the gasoline you use should meet the specifications of ASTM
D4814 in the U.S.A.

5928-1. Specifications
RX450h_U_OM0E013U
■Recommendation of the use of low emissions gasoline
Gasolines containing oxygenates such as et hers and ethanol, as well as reformulated
gasolines, are available in some cities. Thes e fuels are typically acceptable for use, pro-
viding they meet other fuel requirements.
Lexus recommends these fuels, since the form ulations allow for reduced vehicle emis-
sions.
■Non-recommendation of the use of blended gasoline
●If you use gasohol in your vehicle, be sure that it has an octane ra ting no lower than 87.
●Lexus does not recommend the use of gasoline containing methanol.
■Non-recommendation of the use of gasoline containing MMT
Some gasoline contains an octane enhancing additive called MMT
(Methylcyclopentadienyl Manganese Tricarbonyl).
Lexus does not recommend the use of gasoline that contains MMT. If fuel containing
MMT is used, your emission control system may be adversely affected.
The malfunction indicator lamp on the instru ment cluster may come on. If this happens,
contact your Lexus dealer for service.
■If your engine knocks
●Consult your Lexus dealer.
●You may occasionally notice light knocking for a short time while accelerating or driv-
ing uphill. This is normal and there is no need for concern.
●Use only gasoline containing up to 15% etha-
nol.
DO NOT use any flex-fuel or gasoline that
could contain more than 15% ethanol, includ-
ing from any pump labeled E30, E50, E85
(which are only some examples of fuel con-
taining more than 15% ethanol).DO NOT use gasoline
containing more than
15% ethanol.
(30% ethanol)
(50% ethanol)
(85% ethanol)

5938-1. Specifications
8
Vehicle specifications
RX450h_U_OM0E013U
NOTICE
■Notice on fuel quality
●Do not use improper fuels. If improper fuels are used, the engine will be damaged.
●Do not use leaded gasoline.
Leaded gasoline can cause damage to your vehicle’s three-way catalytic converters
causing the emission control system to malfunction.
●Do not use gasohol other than the type previously stated.
Other gasohol may cause fuel system damage or vehicle performance problems.
●Using unleaded gasoline with an octane number or rating lower than the level previ-
ously stated will cause persistent heavy knocking.
At worst, this will lead to engine damage.
■Fuel-related poor driveability
If poor driveability (poor hot starting, vaporization, engine knocking, etc.) is encoun-
tered after using a different type of fuel, discontinue the use of that type of fuel.
■When refueling with gasohol
Take care not to spill gasohol. It can damage your vehicle’s paint.

5958-1. Specifications
8
Vehicle specifications
RX450h_U_OM0E013U
Tire size( P. 597)
DOT and Tire Identification Number (TIN) ( P. 596)
Location of treadwear indicators (P. 487)
Tire ply composition and materials
Plies are layers of rubber-c oated 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 tire and the tube maintains the air pressure.
Load limit at maximum cold tire inflation pressure ( P. 490)
Maximum cold tire inflation pressure ( P. 589)
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. 491)
An all season tire has “M+S” on the side wall. 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 designed for temporary emergency use only.
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5998-1. Specifications
8
Vehicle specifications
RX450h_U_OM0E013U
This information has been prepared in accordance with regulations issued by the
National Highway Traffic Safety Administra tion of the U.S. Department of Trans-
portation.
It provides the purchasers and/or prospe ctive purchasers of Lexus vehicles with
information on uniform tire quality grading.
Your Lexus dealer will help answer any ques tions you may have as you read this infor-
mation.
■DOT quality grades
All passenger vehicle tires must conform to Federal Safety Requirements 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
■Treadwear
The treadwear grade is a comparative rati ng based on the wear rate of the tire
when tested under controlled conditio ns on a specified government 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 depends upon the actua l conditions of their use.
Performance may differ significantly from the norm due to variations in driving
habits, service practices and difference s in road characteristics and climate.
■Traction AA, A, B, C
The traction grades, from highest to lowest, are AA, A, B and C, and they rep-
resent the tire’s ability to stop on wet pavement as measured under controlled
conditions on specified 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) traction.
Uniform Tire Quality Grading

6018-1. Specifications
8
Vehicle specifications
RX450h_U_OM0E013U
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 not 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 hybrid transmission, power
steering, power brakes, power windows, power seats,
radio and heater, to the extent that these items are avail-
able as factory-installed eq uipment (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

6028-1. Specifications
RX450h_U_OM0E013U
Production options weight
The combined weight of in stalled 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
12-volt 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

6098-2. Customization
8
Vehicle specifications
RX450h_U_OM0E013U
■Power back door (P. 142)
*: If equipped
FunctionDefault settingCustomized setting
Power back door switch opera-
tionPress for 1 secondOne short press—O
Automatic closing of the back
door when loweredOnOff—O
Automatic opening of the back
door using the back door opener
switch
OnOff—O
Power back door opening posi-
tion51 to 5OO
Buzzer volumeLevel 3Level 1—OLevel 2
Power back door/touchless sen-
sor*On
Power back door:
On
Touchless sensor:
Off
—O
Off
Power back door open/close
buzzer
When the back
door begins to
operate: On
While the back
door is operating:
Off
Off
—O
When the back
door begins to
operate: Off
While the back
door is operating:
On
On
Sound pattern of the buzzer
when the power back door
begins to operate
Sound pattern A
Sound pattern B
—OSound pattern C
Touchless sensor* sensitivityLevel 1 (standard)Level 1 (standard) to
level 3 (highest)—O
12

619
RX450h_U_OM0E013U
8
Vehicle specifications
8-3. Initialization
Items to initialize
The following items must be initialized for normal system operation after such
cases as the 12-volt battery being reconnected, or maintenance being per-
formed on the vehicle.
ItemWhen to initializeReference
Message indicating mainte-
nance is required (U.S.A. only)• After the maintenance is per- formedP. 466
Tire pressure warning system
• When changing the tire inflationpressure by changing traveling
speed
• When changing the tire size
• When rotating the tires
P. 489
Oil maintenance• After the maintenance is per- formedP. 478
Power back door• After reconnecting or changingthe 12-volt batteryP. 150

623
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For owners
RX450h_U_OM0E013U
●Déroulez la sangle diagonale de
telle sorte qu'elle passe bien sur
l'épaule, sans pour autant être en
contact avec le cou ou glisser de
l'épaule.
●Placez la sangle abdominale le plus
bas possible sur les hanches.
●Réglez la position du dossier de
siège. Asseyez-vous le dos droit et
calez-vous bien dans le siège.
●Ne vrillez pas la ceinture de sécurité.
■Ceintures de sécurité
Nettoyez avec un chiffon ou une éponge humidifiés avec de l'eau savonneuse
tiède. Vérifiez régulièrement que les ceintures ne sont pas usées, effilochées
ou entaillées excessivement.
Seat belt instructions for Canadian owners (in French)
The following is a French explanation of seat belt instructions extracted from
the seat belt section in this manual.
See the seat belt section for more detailed seat belt instructions in English.
Utilisation correcte des ceintures de sécurité
Entretien et soin
AVERTISSEMENT
■Détérioration et usure des ceintures de sécurité
Inspectez le système de cein tures de sécurité régulièrement. Contrôlez l'absence de
coupures, d'effilochages et de pièces dess errées. N'utilisez pas une ceinture de sécu-
rité endommagée avant qu'elle ne soit remplacée. Une ceinture de sécurité endom-
magée ne permet pas de protéger un occupant de blessures graves ou mortelles.