2016 Lexus GS350 traction control

GS350_200t_GS F_OM_OM30E86U_(U)
11
The SRS airbag and seat belt pretensioner devices in your Lexus contain explosive
chemicals. If the vehicle is scrapped with the airbags and seat belt pretensioners left as
they are, this may cause an accident such as fire. Be sure to have the systems of the SRS
airbag and seat belt pretensioner removed an d disposed of by a qualified service shop or
by your Lexus dealer before you scrap your vehicle.
Special handling may apply, See www.dts c.ca.gov/hazardouswaste/perchlorate.
Your vehicle has components that may contain perchlorate. These components may
include airbag, seat belt pretensioners, and wireless remote control batteries.
Scrapping of your Lexus
Perchlorate Material
WA R N I N G
■General precautions while driving
Driving under the influence: Never drive your vehicle when under the influence of
alcohol or drugs that have im paired your ability to operate your vehicle. Alcohol and
certain drugs delay reaction time, impair judgment and reduce coordination, which
could lead to an accident that could result in death or serious injury.
Defensive driving: Always drive defensively. Anticipate mistakes that other drivers or
pedestrians might make and be ready to avoid accidents.
Driver distraction: Always give your full atte ntion to driving. Anything that distracts the
driver, such as adjusting controls, talking on a cellular phone or reading can result in a
collision with resulting death or serious in jury to you, your occupants or others.
■General precaution regarding children’s safety
Never leave children unattended in the vehicle, and never allow children to have or use
the key.
Children may be able to start the vehicle or sh ift the vehicle into neutral. There is also a
danger that children may injure themselves by playing with the windows, the moon
roof, or other features of the vehicle. In addition, heat build-up or extremely cold tem-
peratures inside the vehicl e can be fatal to children.

306
GS350_200t_GS F_OM_OM30E86U_(U)4-5. Using the driving support systems
TVD (Torque Vectoring Differential) (GS F)
With the engine switch in IGNITION
ON mode, pressing the TVD switch
changes the TVD control mode.
The current TVD control mode will be
displayed on the meters.
STANDARD mode
This is the default mode and provides
an optimum balance of driving agility
and stability.
SLALOM mode
This mode emphasizes enhanced
steering response.
TRACK mode
This mode emphasizes stability for
high speed sporty driving.
The multi-information display shows the distribution of driving force between the
right and left rear wheels. (
P. 113)
The TVD system distributes driving force (torque) between the right and left
rear wheels automatically. This syst em contributes to enhanced steering
response while cornering and increased traction when exiting a corner, pro-
viding an agile driving experience.
Changing TVD control modes
1
2
3
TVD control status on the multi-information display

308
GS350_200t_GS F_OM_OM30E86U_(U)4-5. Using the driving support systems
Driving assist systems
◆ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenly, or if the
brakes are applied while drivin
g on a slippery road surface
◆Brake assist
Generates an increased level of braking force after the brake pedal is
depressed when the system detects a panic stop situation
◆VSC (Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or turning on
slippery road surfaces
◆Enhanced VSC (Enhanced Vehicle Stability Control)
Provides cooperative control of the ABS, TRAC, VSC and EPS.
Helps to maintain directional stability when swerving on slippery road sur-
faces by controlling steering performance.
◆TRAC (Traction Control)
Helps to maintain drive power and prevent the drive wheels from spinning
when starting the vehicle or accelerating on slippery roads
◆Hill-start assist control
Helps to prevent the vehicle from rolling backward when starting on an
incline.
To help enhance driving safety and performance, the following systems oper-
ate automatically in response to various driving situations. Be aware, however,
that these systems are supplementary and should not be relied upon too
heavily when operating the vehicle.

GS350_200t_GS F_OM_OM30E86U_(U)
3114-5. Using the driving support systems
4
Driving
To turn the TRAC system off, quickly press and release .
GS350/GS200t: The “Traction Control Turned Off” will be shown on the multi-infor-
mation display.
GS F: The “TRAC OFF” indicator light will come on.
Press again to turn the system back on.
■Turning off both TRAC/VSC systems
GS350/GS200t
To turn the TRAC/VSC systems off, press and hold for more than 3 seconds while
the vehicle is stopped. The VSC OFF indicator light will come on an d the “Traction Control Turned Off” will
be shown on the multi-information display.
*1
Press again to turn the systems back on.
GS F
To turn the TRAC and VSC systems off, press and hold for more than 3 seconds. The “TRAC OFF” indicator light and the VSC OFF indicator light will come on.
*2
Press again to turn the systems back on.
*1: On vehicles with PCS (Pre-Collision System), pre-collision brake assist, pre-collisionbraking, and steering control (performed through cooperative control of PCS [Pre-
Collision System] and LDH) (if equipped) w ill also be disabled. The pre-collision sys-
tem warning light will come on and a message will be displayed on the multi-informa-
tion display. ( P. 4 5 9 )
*2: On vehicles with PCS (Pre-Collision System ), pre-collision brake assist and pre-colli-
sion braking will also be disabled. The PC S (Pre-Collision System) warning light will
come on and a message will be displaye d on the multi-information display. (P. 4 5 9 )

4787-2. Steps to take in an emergency
GS350_200t_GS F_OM_OM30E86U_(U)
(GS F only)
Indicates that the TVD (Torque Vectoring Differential)
system has overheatedThis message may be disp layed when driving under
extremely high load conditions such as the following:
• Continuously driving at high speeds or through
sharp turns
• If either right or left rear tire loses traction and spins
continuously
A buzzer also sounds.
 Drive the vehicle for a while, while avoiding
extremely high load conditions.
Indicates a malfunction in th e drive start control system
A buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer
immediately.
Indicates a malfunction in the brake override system
A buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer.
Wa r n i n g m e s s a g eDetails/Actions

562
GS350_200t_GS F_OM_OM30E86U_(U)8-1. Specifications
This information has been prepared in acco
rdance with regulations issued by the
National Highway Traffic Safety Administration of the U.S. Department of Trans-
portation.
It provides the purchasers and/or prospective 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 infor-
mation.
■DOT quality grades
All passenger vehicle tires must conform to Federal Safety Requirements in
addition to these grades. Quality grad es can be found where applicable on
the tire sidewall between tread shoulder and maximum section width.
For example: Treadwear 200 Traction AA Temperature A
■Tr e a d w e a r
The treadwear grade is a comparative rati ng based on the wear rate of the tire
when tested under controlled conditions 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 variations in driving
habits, service practices and differences in road characteristics and climate.
■Tr a c t i o n A A , 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 we t pavement as measured under controlled
conditions on specified government te st 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

619Alphabetical index
GS350_200t_GS F_OM_OM30E86U_(U)
Tachometer ....................................... 87, 94Variable red zone................................. 97
Tail lights.....................................................215 Light switch ............................................ 215
Replacing light bulbs ........................439
Welcome light illumination control ................................................... 138
Talk switch
*
Telephone switches*
Theft deterrent system Alarm........................................................... 74
Engine immobilizer system .............. 72
Tire inflation pressure .........................550 Maintenance data ............................. 550
Tire inflation pressure display function ................................................. 414
Warning light .......................................454
Warning message ............................ 459
Tire information .....................................558 Glossary ................................................ 563
Size ........................................................... 560
Tire identification number............. 560
Uniform Tire Quality Grading...............................................562
Tire pressure warning system ...........414 Function ................................................... 414
Initializing ................................................. 415
Installing tire pressure warning valves and transmitters ................. 414
Registering ID codes ........................ 416
Warning light .......................................454
Warning message ............................ 459 Tires ............................................................. 413
Chains ....................................................... 317
Checking ................................................. 413
Emergency tire puncture repair kit ..............................................502
If you have a flat tire ............... 491, 502
Inflation pressure............................... 550
Information........................................... 558
Replacing .................................................491
Rotating tires .......................................... 414
Size .......................................................... 550
Snow tires .............................................. 320
Spare tire..................................................491
Tire inflation pressure display function.................................................. 414
Tire pressure warning system ....... 414
Warning light ....................................... 454
Warning message............................. 459
Tools ...........................................................492
Top tether strap ....................................... 68
Torque Vectoring Differential (TVD) ..................................................... 306
Total load capacity................................. 194
Towing Dinghy towing .......................................196
Emergency towing ........................... 444
Towing eyelet ...................................... 446
Trailer towing.........................................195
TRAC (Traction Control) Function ................................................. 308
TRAC OFF switch ............................. 310
T
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.