2013 Lexus GS450h traction control

12
GS450h_U (OM30D01U)
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 and disposed of by a qualified
service shop or by your Lexus deal er before you scrap your vehicle.
Special handling may apply, See www.dt sc.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
CAUTION
■General precautions while driving
Driving under the influence: Never drive your vehicle when under the influence of
alcohol or drugs that have impaired your ability to operate your vehicle. Alcohol
and certain drugs delay reaction time, impa ir 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 attention to driving. Anything that distracts
the driver, such as adjusting controls, ta lking on a cellular phone or reading can
result in a collision with resulting death or serious injury 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 shift the vehicle into neutral. There is
also a danger that children may injure th emselves by playing with the windows, the
moon roof, or other features of the vehicle. In addition, heat build-up or extremely
cold temperatures inside the vehicle can be fatal to children.

741-2. Hybrid system
GS450h_U (OM30D01U)
Hybrid system precautions
Take care when handling the hybrid system, as it contains a high voltage
system (about 650 V at maximum) as well as parts that become
extremely hot when the hy brid system is operating. Obey the caution
labels attached to the vehicle.
Caution label
Power control unit
Electric motor (traction motor)
Hybrid battery (traction bat-
tery) Service plug
High voltage cables (orange)
Air conditioning compressor1
2
3
4
5
6
7

289
GS450h_U (OM30D01U)4-5. Using the driving support systems
4
Driving
Driving assist systems
◆ABS (Anti-lock Brake System)
Helps to prevent wheel lo ck when the brakes are applied suddenly, or if
the brakes are applied while dri ving on a slippery road surface
◆Brake assist
Generates an increased level of br aking 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
◆TRAC (Traction Control)
Helps to maintain drive power and prevent the drive wheels from spin-
ning when starting the vehicle or accelerating on slippery roads
◆EPS (Electric Power Steering)
Employs an electric motor to reduce the amount of effort needed to
turn the steering wheel
To help enhance driving safety an d performance, the following systems
operate 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.

800
GS450h_U (OM30D01U)
8-1. Specifications
This information has been prepared in accordance with regulations issued
by the National Highway Traffic Safety Administration of the U.S. Depart-
ment of Transportation.
It provides the purchasers and/or prospective purchasers of Lexus vehi-
cles 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 conform to Federal Safety Require-
ments 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 controlle d conditions on a specified govern-
ment 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 cli-
mate.
■Traction AA, A, B, C
The traction grades, from highest to lowest, are AA, A, B and C, and
they represent the tire’s ability to stop on wet pavement as measured
under controlled conditions on sp ecified 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

841Alphabetical index
GS450h_U (OM30D01U)
Alarm ..............................................................81Alarm............................................................ 81
Warning buzzer .......................... 711, 721
Anchor brackets ...................................... 62
Antennas (smart access system with push-button start) ......................123
Anti-lock Brake System (ABS)....... 289 Function ................................................. 289
Warning light ......................................... 712
Warning message ............................. 725
Approach warning (dynamic radar cruise control) ........................ 242
Armrest .................................................... 593
Ashtrays....................................................585
Assist grips ..............................................598
Audio input.............................................. 497
Audio system.......................................... 386 Audio input............................................ 497
AUX port/USB port..................... 497, 477, 487
Bluetooth
® audio.............................. 465
CD/DVD player ................................433
CD/DVD player information ......453
DVD video ............................................. 441
iPod .......................................................... 485
MP3/WMA disc ...............................435
Optimal use ......................................... 495
Portable music player ...................... 497
Radio ....................................................... 409
Rear seat audio controls ............... 498
Steering wheel audio switch ....... 503
USB memory .......................................475 Automatic headlight leveling
system ...................................................... 216
Automatic light control system ........ 213
AUX port ................................................. 497
Auxiliary boxes ..................................... 580
AVS (Adaptive Variable Suspension system) ......................... 290
Back-up lights Replacing light bulbs .......................696
Wattage ................................................... 791
Battery (12-volt battery) ..................... 647 If the 12-volt battery is discharged......................................... 770
Preparing and checking before winter......................................................319
Warning light ......................................... 712
Battery (traction battery) ...................... 74
Blind Spot Monitor (BSM) ............... 305
Bluetooth®
Audio system ....................................... 465
Hands-free system (for cellular phone) ...................... 506
Brake Brake Hold .............................................210
Fluid .......................................................... 645
Parking brake ...................................... 207
Regenerative braking .......................... 72
Warning light .................................711, 714
Warning message............................... 721
B

844Alphabetical index
GS450h_U (OM30D01U)
Driver’s seat position memory ......... 150
Driving......................................................... 172Break-in tips ...........................................173
Correct driving posture ....................30
Driving mode select switch ......... 286
Hybrid vehicle driving tips...............317
Procedures ............................................. 172
Winter drive tips .................................. 319
DVD player................................... 433, 441
Dynamic radar cruise control ......... 236 Function ..................................................236
Warning message ................. 723, 734
Eco drive mode ..................................... 286
EDR (Event data recorder) .................... 11
Electric motor (traction motor) ......... 70
Electric Power Steering (EPS) ....... 289 Function ................................................. 289
Warning light ......................................... 712
Warning message ............................. 726
Electronic key ........................................... 118 Battery-saving function ..................... 127
If the electronic key does not operate properly............................. 767
Replacing the battery ...................... 668 Emergency, in case of
If the 12-volt battery is discharged......................................... 770
If the electronic key does not operate properly ........ 767
If the hybrid system will not start ....................................... 762
If the parking brake cannot be released ....................... 765
If the shift lever cannot be shifted from P ............ 764
If the warning buzzer sounds ..........711
If the warning light turns on ..............711
If the warning message is displayed .......................................... 721
If you have a flat tire .......................... 749
If you think something is wrong ................................................710
If your vehicle becomes stuck...................................................... 778
If your vehicle has to be stopped in an emergency............................. 703
If your vehicle needs to be towed ....................................... 704
If your vehicle overheats .................774
Emergency flashers .............................702
E

847Alphabetical index
GS450h_U (OM30D01U)
HeatersAir conditioning system ..................364
Heated steering wheel ...................588
Seat heaters ......................................... 590
Outside rear view mirrors ............ 384
High-voltage components ...................74
Hood .......................................................... 634 Open ........................................................634
Warning message .............................728
Hooks Cargo hooks ......................................... 581
Coat hooks ...........................................597
Luggage hook ...................................... 581
Retaining hooks (floor mat) ............. 28
Utility hook ........................................... 599
Horn ............................................................. 212
Hybrid battery (traction battery) .......74
Hybrid battery (traction battery) air vents .................................................... 75
Hybrid system ........................................... 70 Emergency shut off system.............. 75
Energy monitor/consumption screen ...................... 109
EV drive mode..................................... 196
High voltage components ............... 74
Hybrid System Indicator ................... 92
Hybrid system precautions.............. 74
Hybrid vehicle driving tips...............317
If the hybrid system will not start........................................ 762
Overheating ......................................... 774
Power (ignition) switch .................... 189
Starting the hybrid system .............. 189
Vehicle proximity notification system ....................................................... 71 Hybrid System Indicator .......................92
Hybrid transmission .............................. 199
If the shift lever cannot be shifted from P ............ 764
Paddle shift switches..........................201
S mode.................................................... 202
I/M test ..................................................... 630
Identification Engine ..................................................... 783
Vehicle .................................................... 783
Ignition switch (power switch) ..........189
Illuminated entry system ....................573
Immobilizer system ................................. 79
Indicators .....................................................87
Initialization Maintenance ........................................ 624
Moon roof ...............................................169
Power windows....................................165
Tire pressure warning system ...............................653
Initiators (tire pressure warning system) ................................ 659
Inside door handle lights ..................... 571
Inside rear view mirror......................... 159
Instrument panel light control .............. 91
Interior lights ............................................ 571
Intuitive parking assist .......................... 261 Function .................................................... 261
Warning message..................723, 734
I

856Alphabetical index
GS450h_U (OM30D01U)
Tires..............................................................651Chains........................................................321
Checking................................................. 651
If you have a flat tire .......................... 749
Inflation pressure ............................... 790
Information ............................................795
Replacing ............................................... 749
Rotating tires ........................................652
Size ........................................................... 790
Snow tires .............................................. 323
Spare tire ................................................ 749
Tire inflation pressure display function ................................................... 97
Tire pressure warning system .... 653
Warning light ........................................ 715
Warning message .............................740
Tools........................................................... 750
Top tether strap........................................ 66
Total load capacity ................................ 186
Towing Dinghy towing ......................................188
Emergency towing ............................704
Towing eyelet...................................... 705
Trailer towing ........................................ 187
TRAC (Traction Control) ................. 289
Traction battery (hybrid battery) .......74
Traction motor (electric motor) ........ 70
Transmission .............................................199 Driving mode select switch ......... 286
Hybrid transmission........................... 199
If the shift lever cannot be shifted from P ................................... 764
S mode ....................................................202
Paddle shift switches ......................... 201 Trip information ....................................... 95
Trip meters ................................................. 89
Trunk .............................................................141
Internal trunk release lever ............. 144
Jam protection function.................... 143
Luggage security system................. 142
Open trunk warning message.... 729
Power trunk opener and closer ..............................................141
Smart access system with push-button start.................... 122
Trunk closer switch............................. 142
Trunk easy closer ................................ 143
Trunk features....................................... 581
Trunk grip ................................................ 142
Trunk light................................................ 143
Trunk opener main switch .............. 142
Trunk opener switch ............................141
Wireless remote control.................. 134
Trunk light Trunk light................................................ 143
Wattage ................................................... 791
Turn signal lights ................................... 205 Replacing light bulbs ............ 691, 695
Turn signal lever .................................205
Wattage ................................................... 791