GS450h_OM_OM30E99U_(U)
1373-2. Opening, closing and locking the doors and trunk
3
Operation of each component
■When the vehicle is not driven for extended periods
●To prevent theft of the vehicle, do not leave the electronic key within 6 ft. (2 m) of the
vehicle.
●The smart access system with push-button start can be deactivated in advance.
( P. 4 9 1 )
■To operate the system properly
●Make sure to carry the electronic key when operating the system. Do not get the elec-
tronic key too close to the vehicle when op erating the system from the outside of the
vehicle.
Depending on the position and holding condit ion of the electronic key, the key may not
be detected correctly and the system may no t operate properly. (The alarm may go off
accidentally, or the door lock prev ention function may not operate.)
●Do not leave the electronic key inside the trunk.
The key confinement prevention function ma y not operate, depending on the location
of the key (close to a spare tire, the inside edge of the trunk), conditions (inside a metal
bag, close to metallic objects) and the radio waves in the surrounding area. (P. 1 2 8 )
■If the smart access system with push-button start does not operate properly
●Locking and unlocking the doors and open ing the trunk: Use the mechanical key.
( P. 4 5 1 )
●Starting the hybrid system: P. 4 5 2
■Customization
Settings (e. g. smart access system with push-button start) can be changed.
(Customizable features: P. 4 9 1 )
■If the smart access system with push-butto n start has been deactivated in a customized
setting
●Locking and unlocking the d oors and opening the trunk:
Use the wireless remote control or mechanical key. ( P. 120, 127, 451)
●Starting the hybrid system and changing power switch modes: P. 4 5 2
●Stopping the hybrid system: P. 1 8 1
361
GS450h_OM_OM30E99U_(U)6-3. Do-it-yourself maintenance
6
Maintenance and care
Tires
Check if the treadwear indicators are showing on the tires. Also check the tires
for uneven wear, such as excessive wear on one side of the tread.
Check the spare tire condition and pressure if not rotated. New tread
Wo r n t r e a d
Treadwear indicator
The location of treadwear indicators is shown by the “TWI” or “ ” mark, etc., molded
into the sidewall of each tire.
Replace the tires if the treadwear indicators are showing on a tire.
Replace or rotate tires in accordance with maintenance schedules and tread-
wear.
Checking tires
1
2
3
4387-2. Steps to take in an emergency
GS450h_OM_OM30E99U_(U)
Location of the spare tire, jack and tools
Jack handle
Parking brake release tool
Screwdriver
Towing eyeletWheel nut wrench
Spare tire
Jack1
2
3
4
5
6
7
4457-2. Steps to take in an emergency
GS450h_OM_OM30E99U_(U)
7
When trouble arises
WA R N I N G
■When the compact spare tire is attached
The vehicle speed may not be correctly detected, and the following systems may not
operate correctly:
■Speed limit when using the compact spare tire
Do not drive at speeds in excess of 50 mph (80 km/h) when a compact spare tire is
installed on the vehicle.
The compact spare tire is not designed for driving at high speeds. Failure to observe
this precaution may lead to an accident causing death or serious injury.
■After using the tools and jack
Before driving, make sure all the tools and jack are securely in place in their storage
location to reduce the possibility of personal injury during a collision or sudden brak-
ing.
NOTICE
■Be careful when driving over bumps with the compact spare tire installed on the vehi-
cle.
The vehicle may become lower when driving with the compact spare tire compared to
when driving with standard ti res. Be careful when driving over uneven road surfaces.
■Driving with tire chains and the compact spare tire
Do not fit tire chains to the compact spare tire.
Tire chains may damage the vehicle body and adversely affect driving performance.
■When replacing the tires
When removing or fitting the wheels, tires or the tire pressure warning valve and trans-
mitter, contact your Lexus dealer as the tire pressure warning valve and transmitter
may be damaged if not handled correctly.
• ABS & Brake assist
•VSC
•TRAC
•Cruise control
• Dynamic radar cruise control with full-
speed range (if equipped)
• PCS (Pre-Collision System)
(if equipped)
•EPS
•AFS (if equipped)
• Adaptive Variable Suspension system • LKA (Lane-Keeping Assist)
(if equipped)
• Tire pressure warning system
•VDIM
• Lexus parking assist monitor
• Intuitive parking assist (if equipped)
• Navigation system (if equipped)
• DRS (if equipped)
• VGRS (if equipped)
• LDH (if equipped)
482
GS450h_OM_OM30E99U_(U)
8-1. Specifications
Ti r e s i z e ( P. 4 8 3 )
DOT and Tire Identification Number (TIN) ( P. 4 8 3 )
Location of treadwear indicators (P. 3 6 1 )
Tire ply composition and materials
Plies are layers of rubber-coated parallel co rds. 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. 4 8 6 )
Maximum cold tire inflation pressure ( P. 4 8 6 )
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. 3 6 5 )
An all season tire has “M+S” on the sidewall. 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 desi gned for temporary emergency use only.
1
2
3
4
5
6
7
8
9
10
11
537Alphabetical index
GS450h_OM_OM30E99U_(U)
Spare tire.................................................. 437Inflation pressure ................................ 473
Storage location ................................. 473
Spark plug ................................................. 471
Specifications ......................................... 466
Speedometer ............................................ 86
Sport mode ............................................. 256
Steering lock ........................................... 182 Column lock release ......................... 183
Steering lock system warning message ...........................435
Steering wheel .......................................... 151 Adjustment ............................................... 151
Audio switches
*
Heated steering wheel ................... 300
Power easy access system ............ 143
Steering wheel position memory.............................. 143
Stop lights Replacing light bulbs ....................... 388
Storage feature .....................................305
Storage precautions............................305
Stuck If the vehicle becomes stuck ........462
Sun shade Rear............................................................ 316
Rear door................................................ 316
Roof............................................................ 162
Sun visors ...................................................312 Switches
Audio remote control switches
*
Automatic High Beam switch .....200
Brake hold switch................................195
Cruise control switch ............ 241, 253
Door lock switches ............................. 122
Driving mode select switch .......... 256
Driving position memory switches ................................................ 143
Emergency flashers switch ........... 392
EV drive mode switch ..................... 185
Garage door opener switches ................................................319
Heated steering wheel switch .................................................. 300
HUD (Head-up display) switches ................................................. 101
Ignition switch....................................... 180
Intuitive parking assist
*
Light switch............................................. 197
LKA (Lane-Keeping Assist) switch ................................................... 236
Meter control switches ...................... 94
Moon roof switches ............................ 161
Outside rear view mirror switches ................................................154
Paddle shift switches......................... 189
Parking brake switches ....................193
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.