
1824-5. Using the driving support systems
play is switched to the driving assist system 
information screen.
Inside of displayed lines is white
Indicates that the system is recognizing 
white (yellow) lines or a course
*. When the 
vehicle departs from it s lane, the white line 
displayed on the side the vehicle departs 
from flashes orange.
Inside of displayed lines is black
Indicates that the system is not able to rec-
ognize white (yellow) lines or a course
* or 
is temporarily canceled.
*: Boundary between asphalt and the side  of the road, such as grass, soil, or a curb
■Operation conditions of each function
●Lane departure alert function
This function operates when all of the fol-
lowing conditions are met.
• LTA is turned on.
• Vehicle speed is approximately 32 mph  (50 km/h) or more.
*1
•System recognizes wh ite (yellow) lane  lines or a course
*2. (When a white [yel-
low] line or course*2 is recognized on 
only one side, the system will operate 
only for the recognized side.)
• Width of traffic lane is approximately 9.8  ft. (3 m) or more.
• Turn signal lever is not operated. (Vehi-
cles with Blind Spot Monitor: Except 
when another vehicle is in the lane on the 
side where the turn signal was operated)
• Vehicle is not being driven around a  sharp curve.
• No system malfunctions are detected. 
( P.184)
*1: The function operates even if the vehicle 
speed is less than ap proximately 32 mph 
(50 km/h) when the lane centering 
function is operating.
*2: Boundary between asphalt and the side  of the road, such as grass, soil, or a curb
●Steering assist function
This function operates when all of the fol-
lowing conditions are met in addition to the 
operation conditions for the lane departure 
alert function.
• Setting for “Steering Assist” in   of the  multi-information display is set to “On”. 
( P.72)
• Vehicle is not acceler ated or decelerated 
by a fixed amount or more.
• Steering wheel is not operated with a  steering force level su itable for changing 
lanes.
• ABS, VSC, TRAC and PCS are not oper- ating.
• TRAC or VSC is not turned off.
• Hands off steering wheel warning is not 
displayed. ( P.183)
●Vehicle sway warning function
This function operates when all of the fol-
lowing conditions are met.
• Setting for “Warning” in   of the multi- information display is set to “On”. 
( P.72)
• Vehicle speed is approximately 32 mph  (50 km/h) or more.
• Width of traffic lane is approximately 9.8  

1834-5. Using the driving support systems
4
Driving
ft. (3 m) or more.
• No system malfunctions are detected.  ( P.184)
●Lane centering function
This function operates when all of the fol-
lowing conditions are met.
• LTA is turned on.
• Setting for “Steering Assist” and “Lane 
Center” in   of th e multi-information 
display are set to “On”. ( P.72)
• This function recognizes white (yellow)  lane lines or the position of a preceding 
vehicle (except when the preceding vehi-
cle is small, such as a motorcycle).
• The dynamic radar cruise control with 
full-speed range is operating in vehicle-
to-vehicle distance control mode.
• Width of traffic lane is approximately 10 
to 13 ft. (3 to 4 m).
• Turn signal lever is not operated.
• Vehicle is not being driven around a  sharp curve.
• No system malfunctions are detected.  ( P.184)
• Vehicle does not acc elerate or deceler-
ate by a fixed amount or more.
• Steering wheel is not operated with a 
steering force level su itable for changing 
lanes.
• ABS, VSC, TRAC and PCS are not oper-
ating.
• TRAC or VSC is not turned off.
• Hands off steering wheel warning is not  displayed. ( P.183)
• The vehicle is being driven in the center  of a lane.
• Steering assist function is not operating.
■Temporary cancelation of functions
When operation conditions are no longer 
met, a function may be temporarily can-
celed. However, when  the operation condi-
tions are met again, operation of the 
function is automatically restored. ( P.182)
If the operation conditions ( P.182) are no 
longer met while the lane centering func-
tion is operating, th e steering wheel may 
vibrate and the buzzer may sound to indi-
cate that the function has been temporarily 
canceled. However, if  the “Steering wheel 
vibration” customization setting is set to 
“On”, the system will notify the driver by  vibrating the steering wheel instead of 
sounding the buzzer.
■Steering assist function/lane centering 
function
●Depending on the vehicle speed, lane 
departure situation, road conditions, etc., 
the driver may not feel the function is 
operating or the function may not oper-
ate at all.
●The steering control of the function is 
overridden by the driver’s steering wheel 
operation.
●Do not attempt to test the operation of 
the steering assist function.
■Lane departure alert function
●The warning buzzer may be difficult to 
hear due to external noise, audio play-
back, etc. Also, it may be difficult to feel 
steering wheel vibrations due to the road 
conditions, etc.
●If the edge of the course* is not clear or 
straight, the lane departure alert function 
may not operate.
●Vehicles with Blind Spot Monitor: It may 
not be possible for the system to deter-
mine if there is a danger of a collision with 
a vehicle in an adjacent lane.
●Do not attempt to test the operation of 
the lane departure alert function.
*: Boundary between asphalt and the side 
of the road, such as grass, soil, or a curb
■Hands off steering wheel warning
In the following situations, a warning mes-
sage urging the driver to hold the steering 
wheel and the symbol sh own in the illustra-
tion are displayed on the multi-information 
display to warn the driver. The warning 
stops when the system determines that the 
driver holds the steering wheel. Always 
keep your hands on the steering wheel 
when using this system , regardless of warn-
ings. 

2414-6. Driving tips
4
Driving
or move a wiper that is frozen. Pour 
warm water over the frozen area to 
melt the ice. Wipe away the water 
immediately to prevent it from 
freezing.
 To ensure proper operation of the 
climate control system fan, remove 
any snow that has accumulated on 
the air inlet vents in front of the 
windshield.
 Check for and remove any excess 
ice or snow that may have accumu-
lated on the exterior lights, vehicle’s 
roof, chassis, around the tires or on 
the brakes.
 Remove any snow or mud from the 
bottom of your shoes before getting 
in the vehicle.
■To protect the windshield wipers
 P.158
Accelerate the vehicle slowly, keep a 
safe distance between you and the 
vehicle ahead, and drive at a reduced 
speed suitable to road conditions.
 Park the vehicle and move the shift 
lever to P without setting the park-
ing brake. The parking brake may 
freeze up, preventing it from being 
released. If the vehicle is parked 
without setting the parking brake, 
make sure to block the wheels. 
Failure to do so may be dangerous 
because it may cause the vehicle to  move unexpectedly, possibly lead-
ing to an accident.
 If the vehicle is parked without set-
ting the parking brake, confirm that 
the shift lever cannot be moved out 
of P
*.
*: The shift lever will be locked if it is 
attempted to be shifted from P to any 
other position with out depressing the 
brake pedal. If the shift lever can be 
shifted from P, there may be a problem 
with the shift lock system. Have the vehi-
cle inspected by your Lexus dealer 
immediately.
Vehicles with 17-inch tires
Use the correct tire chain size when 
mounting the tire chains.
Chain size is regulated for each tire 
size.
Side chain:
0.12 in. (3 mm) in diameter
0.39 in. (10 mm) in width
1.18 in. (30 mm) in length
Cross chain:
0.16 in. (4 mm) in diameter
0.55 in. (14 mm) in width
When driving the vehicle
When parking the vehicle
Selecting tire chains
A
B
C
D
E 

3276-3. Do-it-yourself maintenance
6
Maintenance and care
When replacing wheels, care should 
be taken to ensure that they are equiv-
alent to those removed in load capac-
ity, diameter, rim width and inset
*.
Replacement wheels are available at 
your Lexus dealer.
*: Conventionally referred to as offset.
Lexus does not recommend using the 
following:
 Wheels of different sizes or types
 Used wheels
 Bent wheels that have been straight-
ened
■When replacing wheels
The wheels of your vehicle are equipped 
with tire pressure warning valves and trans-
mitters 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 pres-
sure warning valves an d transmitters must 
be installed. ( P.321) Use only Lexus wheel nuts and 
wrenches designed for use with 
your aluminum wheels.
 When rotating, repairing or chang-
ing your tires, check that the wheel 
nuts are still tight after driving 1000 
miles (1600 km).
 Vehicles with 17-inch tires: Be care-
ful 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 
Wheels
If a wheel is bent, cracked or heavily 
corroded, it should be replaced. 
Otherwise, the tire may separate 
from the wheel or cause a loss of 
handling control.
Wheel selection
WARNING
■When replacing wheels
●Do not use wheels that are a different 
size from those recommended in the 
Owner’s Manual, as this may result in a 
loss of handling control.
●Never use an inner tube in a leaking 
wheel which is designed for a tubeless 
tire. Doing so may result in an acci-
dent, causing death or serious injury.
■Use of defective wheels prohibited
Do not use cracked or deformed wheels.
Doing so could cause the tire to leak air 
during driving, possibly causing an acci-
dent.
NOTICE
■Replacing tire pressure warning 
valves and transmitters
●Because tire repair or replacement 
may affect the tire pressure warning 
valves and transmitters, make sure to 
have tires serviced by your Lexus 
dealer or other qua lified service shop. 
In addition, make sure to purchase 
your tire pressure warning valves and 
transmitters at your Lexus dealer.
●Ensure that only genuine Lexus wheels 
are used on your vehicle.
Tire pressure warning valves and trans-
mitters may not work properly with 
non-genuine wheels.
Aluminum wheel precautions 

3828-1. Specifications
8-1.Specifications
*1:Unladen vehicle
*2: Vehicles with 215/55R17 tires
*3: Vehicles with 235/45R18 tires and 235/40R19 tires
■Vehicle identification number
The vehicle identification number 
(VIN) is the legal identifier for your 
vehicle. This is the primary identifica-
tion number for your Lexus. It is used in 
registering the ownership of your vehi-
cle.
This number is stamped on the top left 
of the instrument panel. This number is also stamped under the 
right-hand front seat.
Maintenance data (fuel, oil level, etc.)
Dimensions and weight
Overall length195.9 in. (4975 mm)
Overall width73.4 in. (1865 mm)
Overall height*156.9 in. (1445 mm)
Wheelbase113.0 in. (2870 mm)
Tread*1
Front62.9 in. (1598)*2
62.6 in. (1588)*3
Rear63.3 in. (1609)*2
63.0 in. (1599)*3
Vehicle capacity weight 
(Occupants + luggage)905 lb. (410 kg)
Vehicle identification 

3938-1. Specifications
8
Vehicle specifications
Type ADOT symbol
*
Tire Identification Number (TIN)
Tire manufacturer’s identification 
mark
Tire size code
Manufacturer’s optional tire type 
code (3 or 4 letters)
Manufacturing week
Manufacturing year
*:The DOT symbol cert ifies that the tire 
conforms to applicable Federal Motor 
Vehicle Safety Standards.
Type B
DOT symbol
*
Tire Identification Number (TIN) Tire manufacturer’s identification 
mark
Manufacturer’s code
Manufacturing week
Manufacturing year
*: The DOT symbol certifies that the tire 
conforms to applicable Federal Motor 
Vehicle Safety Standards.
■Typical tire size information
The illustration indicates typical tire 
size.
Tire use (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)
Typical DOT and Tire Identifica-
tion Number (TIN)
A
B
C
D
E
F
G
A
B
Tire size
C
D
E
F
A
B
C
D
E
F
G 

3948-1. Specifications
■Tire dimensionsSection width
Tire height
Wheel diameter
Bead
Sidewall
Shoulder
Tread
Belt
Inner liner
Reinforcing rubber
Carcass
Rim lines
Bead wires
Chafer This information has been prepared in 
accordance with regulations issued by 
the National Highway Traffic Safety 
Administration of the U.S. Department 
of Transportation.
It provides the purchasers and/or pro-
spective purchasers of Lexus vehicles 
with information on uniform tire quality 
grading.
Your Lexus dealer will help answer any 
questions you may have as you read this 
information.
■DOT quality grades
All passenger vehicle tires must con-
form 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 
rating based on the wear rate of the tire 
when tested under controlled condi-
tions 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 actual conditions of their use. 
Performance may differ significantly from 
the norm due to variatio ns in driving habits, 
service practices and differences in road 
characteristics and climate.
Tire section names
A
B
C
A
B
C
D
E
F
G
H
I
J
K
Uniform Tire Quality Grading 

3968-1. Specifications
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 number of occupants specified in the sec-
ond column of Table 1
* that follows
Occupant distribu-
tionDistribution of occupants in a vehicl e as specified in the third column 
of Table 1
* below
Production options 
weight
The combined weight of installed regular production  options weigh-
ing over 5 lb. (2.3 kg) in excess of the standard items which they 
replace, not previously considered  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 designa-
tionThe 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 designated seating capacity
Vehicle maximum 
load on the tireThe load on an individual tire that is determined by distributing to 
each axle its share of the maximum loaded vehicle weight, and divid-
ing by two
Vehicle normal load 
on the tire
The load on an individual tire that is determined by distributing to 
each axle its share 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
Tire related termMeaning