2013 Lexus GS300h maintenance reset

7586-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30D53E_(EE)
Press and hold the tire pres-
sure warning reset switch
until the tire pressure warn-
ing light blinks slowly 3
times.
Wait for a few minutes with the power switch in ON mode and
then turn the power switch off.
Registering ID codes
The tire pressure warning valve and transmitter is equipped with
a unique ID code. When replacing a tire pressure warning valve
and transmitter, it is necessary to register the ID code. Have the
ID code registered by any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
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5

761 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS450h_300h_OM_OM30D53E_(EE)
The initialization operation (vehicles with the tire pressure warning system)
Make sure to carry out initialization after adjusting the tire inflation pres-
sure.
Also, make sure the tires are cold before carrying out initialization or tire
inflation pressure adjustment.
If you have accidentally turned the power switch off during initialization, it
is not necessary to press the reset switch again as initialization will restart
automatically when the power switch has been turned to ON mode for the
next time.
If you accidentally press the reset switch when initialization is not neces-
sary, adjust the tire inflation pressure to the specified level when the tires
are cold, and conduct initialization again.
Warning performance of the tire pressure warning system (if equipped)
The warning of the tire pressure warning system will change in accordance
with the conditions under which it was initialized. For this reason, the system
may give a warning even if the tire pressure does not reach a low enough
level, or if the pressure is higher than the pressure that was adjusted to when
the system was initialized.
When initialization of the tire pressure warning system has failed (vehicles
with the tire pressure warning system)
Initialization can be completed in a few minutes. However, in the following
cases, the settings have not been recorded and the system will not operate
properly. If repeated attempts to record tire inflation pressure settings are
unsuccessful, have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
When operating the tire pressure warning reset switch, the tire pressure
warning light does not blink 3 times.
After carrying out the initialization procedure, the tire pressure warning
light blinks for 1 minute then stays on after driving for 20 minutes.
Registering ID codes (vehicles with the tire pressure warning system)
The ID codes of the tire pressure warning valve and transmitters for two sets
of wheels can be registered.
It is not necessary to register the ID codes when replacing normal tires with
snow tires, if the ID codes for the wheels of both normal tires and snow tires
are registered beforehand.
For information about changing ID codes, ask any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.

7686-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30D53E_(EE)
CAUTION
When inspecting or replacing tires
Observe the following precautions to prevent accidents.
Failure to do so may cause damage to parts of the drive train as well as dan-
gerous handling characteristics, which may lead to an accident resulting in
death or serious injury.
Do not mix tires of different makes, models or tread patterns.
Also, do not mix tires of remarkably different treadwear.
Do not use tire sizes other than those recommended by Lexus.
Do not mix differently constructed tires (radial, bias-belted or bias-ply
tires).
Do not mix summer, all season and snow tires.
Do not use tires that have been used on another vehicle.
Do not use tires if you do not know how they were used previously.
Vehicles with a compact spare tire: Do not tow if your vehicle has a com-
pact spare tire installed.
Vehicles with an emergency tire puncture repair kit (if equipped): Do not
tow anything if a tire that has been repaired using the emergency tire
puncture repair kit is installed. The load on the tire may cause unexpected
damage to the tire.
When initializing the tire pressure warning system (vehicles with the tire
pressure warning system)
Do not operate the tire pressure warning reset switch without first adjusting
the tire inflation pressure to the specified level. Otherwise, the tire pressure
warning light may not come on even if the tire inflation pressure is low, or
it may come on when the tire inflation pressure is actually normal.

978Alphabetical index
GS450h_300h_OM_OM30D53E_(EE)
Tachometer ........................109, 124
Tail lights ..................................272
Light switch ..........................272
Replacing light bulbs ............818
Welcome light illumination
control ................................143
Talk switch ........................471, 635
Telephone switches ...................612
Theft deterrent system
Alarm ......................................97
Double locking system ...........96
Immobilizer system ................91
Intrusion sensor and tilt sensor ...
100
Tire inflation pressure ...............772
Maintenance data ..................936
Tire inflation pressure display
function ..............................117
Warning light........................835
Warning message..................860
Tire pressure warning system....756
Function ................................756
Initializing ............................757
Installing tire pressure warning
valves and transmitters .......756
Registering ID codes ............758
Tire pressure warning reset
switch .................................757
Warning light........................835
Warning message..........860, 860Tires .......................................... 754
Chains .................................. 436
Checking .............................. 754
Emergency tire puncture
repair kit ............................ 885
If you have a flat tire.... 871, 885
Inflation pressure ................. 936
Replacing ............................. 871
Rotating tires........................ 755
Size ...................................... 936
Snow tires ............................ 438
Spare tire .............................. 871
Tire inflation pressure display
function ............................. 117
Tire pressure warning system ....
756
Warning light ....................... 835
Warning message................. 860
Tools ................................. 872, 886
Top strap ..................................... 76
Towing...................................... 822
Emergency towing ............... 822
Towing capacity .................. 926
Towing eyelet ...................... 824
Trailer towing .............. 237, 238
Traction battery (hybrid battery) 84
Traction Control (TRC) ............ 397
Traction motor (electric motor) .. 80
Trailer towing ................... 237, 238
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