ESP Lexus GS450h 2015 Opening, closing and locking the doors and trunk / LEXUS 2015 GS450H (OM30E26U) Workshop Manual

GS450h_OM_OM30E26U_(U)
4136-1. Maintenance and care
6
Maintenance and care
■Caring for leather areas
Lexus recommends cleaning the interior of the vehicle at least twice a year to main-
tain the quality of the vehicle’s interior.
■Shampooing the carpets
There are several commercial foaming-type cleaners available. Use a sponge or
brush to apply the foam. Rub in overlapping circles. Do not use water. Wipe dirty sur-
faces and let them dry. Excellent results are obtained by keeping the carpet as dry as
possible.
■Seat belts
Clean with mild soap and lukewarm water using a cloth or sponge. Also check the
belts periodically for excessive wear, fraying or cuts.
■When cleaning the carpeted portions of the glove box, console box, etc.
If a strong adhesive tape is used, there is a possibility that the surface of the carpet
could be damaged.
CAUTION
■Water in the vehicle
●Do not splash or spill liquid in the vehicl e, such as on the floor, in the hybrid bat-
tery (traction battery) air vents, and in the trunk.
Doing so may cause the hybrid battery, electrical components, etc. to malfunc-
tion or catch fire.
●Do not get any of the SRS components or wiring in the vehicle interior wet.
(  P. 4 0 )
An electrical malfunction may cause the ai rbags to deploy or not function prop-
erly, resulting in death or serious injury.
■Cleaning the interior (especially instrument panel)
Do not use polish wax or polish cleaner. The instrument panel may reflect off the
windshield, obstructing the driver’s view and leading to an accident, resulting in
death or serious injury.

414
GS450h_OM_OM30E26U_(U)
6-1. Maintenance and care
NOTICE
■Cleaning detergents
●Do not use the following types of detergent, as they may discolor the vehicle inte-
rior or cause streaks or damage to painted surfaces:
• Non-seat portions: Organic substances such as benzene or gasoline, alkalineor acidic solutions, dye, and bleach
• Seats: Alkaline or acidic solutions, such as thinner, benzene, and alcohol
●Do not use polish wax or polish cleaner. The instrument panel’s or other interior
part’s painted surf ace may be damaged.
■Preventing damage to leather surfaces
Observe the following precautions to avoid damage to and deterioration of
leather surfaces:
●Remove any dust or dirt from leather surfaces immediately.
●Do not expose the vehicle to direct sunlight for extended periods of time. Park
the vehicle in the shade, especially during summer.
●Do not place items made of vinyl, plastic, or containing wax on the upholstery, as
they may stick to the leather surface if the vehicle interior heats up significantly.
■Water on the floor
Do not wash the vehicle floor with water.
Vehicle systems such as the audio syst em may be damaged if water comes into
contact with electrical components such as the audio system above or under the
floor of the vehicle. Water may also cause the body to rust.
■When cleaning the inside of the windsh ield (vehicles with LKA [Lane-Keeping
Assist])
Be careful not to touch the camera sensor ( P. 2 7 1 ) .
If the camera is accidentally scratched or hit, LKA may not operate properly or
may cause a malfunction.
■Cleaning the inside of the rear window
●Do not use glass cleaner to clean the rear window, as this may cause damage to
the rear window defogger heater wires or antenna. Use a cloth dampened with
lukewarm water to gently wipe the window clean. Wipe the window in strokes
running parallel to the heater wires or antenna.
●Be careful not to scratch or damage the heater wires or antenna.

415
GS450h_OM_OM30E26U_(U)6-2. Maintenance
6
Maintenance and care
Maintenance requirements
General maintenance should be performed on a daily basis. This can be
done by yourself or by a Lexus dealer.
Scheduled maintenance should be performed at specified intervals
according to the maintenance schedule.
For details about maintenance items and schedules, refer to the “Warranty and
Service Guide”, “Owner’s Manual Suppl ement” or “Scheduled Maintenance”.
You can perform some maintenance procedures by yourself.
Please be aware that do-it-yourself maintenance may affect warranty cov-
erage.
The use of Lexus repair manuals is recommended.
For details about warranty coverage, refer to the separate “Owner’s Guide”,
“Warranty and Service Guide”, “Owner’s Manual Supplement” or “Warranty
Booklet”.
To ensure safe and economical driving, day-to-day care and regular
maintenance are essential. It is the owner’s responsibility to perform
regular checks. Lexus recommends the following maintenance:
General maintenance
Scheduled maintenance
Do-it-yourself maintenance

450
GS450h_OM_OM30E26U_(U)
6-3. Do-it-yourself maintenance
■When initialization of the tire pressure warning system has failed
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 your Lexus dealer.
●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.
■Tire pressure warning system certification
For vehicles sold in the U.S.A.
●Tr a n s m i t t e r
FCC ID: PAXPMVC010
●Initiator
FCC ID: HYQ22AAA
NOTE:
This device complies with part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
FCC WARNING:
Changes or modifications not expressly ap proved by the party responsible for com-
pliance could void the user’s authority to operate the equipment.
For vehicles sold in Canada
●Tr a n s m i t t e r
NOTE:
Operation is subject to the following two conditions: (1) this device may not cause
interference, and (2) this device must a ccept any interference, including interfer-
ence that may cause undesired operation of the device.
●Initiator
NOTE:
This device complies with Industry Canada licence-exempt RSS standard(s).
Operation is subject to the following two conditions: (1) this device may not cause
interference, and (2) this device must a ccept any interference, including interfer-
ence that may cause undesired operation of the device.

5117-2. Steps to take in an emergency
GS450h_OM_OM30E26U_(U)
7
When trouble arises
CAUTION
■Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly when cold
and inflated to the inflation pressure re commended by the vehicle manufacturer on
the vehicle placard or tire inflation pressu re label (tire and load information label).
(If your vehicle has tires of a different size than the size indicated on the vehicle
placard or tire inflation pressure label [t ire and load information label], you should
determine the proper tire inflation pressure for those tires.)
As an added safety feature, your vehicle has been equipped with a tire pressure
monitoring system (TPMS-tire pressure wa rning system) that illuminates a low tire
pressure telltale (tire pressure warning light ) when one or more of your tires is sig-
nificantly under-inflated. Accordingly, when the low tire pressure telltale (tire pres-
sure warning light) illuminates, you should stop and check your tires as soon as
possible, and inflate them to the proper pressure. Driving on a significantly under-
inflated tire causes the tire to overheat and can lead to tire failure. Under-inflation
also reduces fuel efficiency and tire tread life, and may affect the vehicle’s handling
and stopping ability.
Please note that the TPMS (tire pressure warning system) is not a substitute for
proper tire maintenance, and it is the driver’s responsibility to maintain correct tire
pressure, even if under-inflation has not re ached the level to trigger illumination of
the TPMS low tire pressure telltale (tire pressure warning light).
Your vehicle has also been equipped with a TPMS (tire pressure warning system)
malfunction indicator to indicate when th e system is not operating properly. The
TPMS (tire pressure warning system) malfunction indicator is combined with the
low tire pressure telltale (tire pressure warning light). When the system detects a
malfunction, the telltale will flash for approximately one minute and then remain
continuously illuminated. This sequence will continue upon subsequent vehicle
start-ups as long as the malfunction exists . When the malfunction indicator is illumi-
nated, the system may not be able to detect or signal low tire pressure as intended.

5317-2. Steps to take in an emergency
GS450h_OM_OM30E26U_(U)
7
When trouble arises
Wa r n i n g m e s s a g eDetailsCorrection procedure
Indicates that all mainte-
nance is required to cor-
respond to the driven
distance on the mainte-
nance schedule
*.Pe r f o r m t h e n e c e s s a r y
maintenance. Please
reset the message after
the maintenance is per-
formed
( P. 4 1 6 )
Comes on approxi-
mately 5000 miles
(8000 km) after the
message has been reset.
(The indicator will not
work properly unless the
message has been reset.)
Indicates that the tire
inflation pressure is lowCheck the tire inflation
pressure, and adjust to
the appropriate level.
Indicates a malfunction in
the tire pressure warning
system
Stop the vehicle in a safe
place and turn the power
switch off then on again.
If the tire pressure
warning indicator
flashes for 1 minute
then illuminates, there
is a malfunction in the
system. Have the vehi-
cle inspected at your
Lexus dealer.
(U.S.A. only)
(If equipped)
(If equipped)

5337-2. Steps to take in an emergency
GS450h_OM_OM30E26U_(U)
7
When trouble arises
Carrying out the corresponding action turns the messages off.
*: For the EV drive mode operating conditions: P. 2 0 0
Other displayed messages
Displayed messageDetailsCorrection procedure
Maintenance of the
hybrid system (traction
battery) cooling compo-
nent is required
The filter may be
clogged, the air vent
may be blocked or
there may be a gap in
the duct.
Have maintenance per-
formed on the hybrid sys-
tem (traction battery)
cooling component at
your Lexus dealer.
Indicates that the EV
drive mode is not avail-
able
*
The reason the EV
drive mode is not avail-
able (the vehicle is
idling, battery charge is
low, speed is higher
than the EV drive
mode operating speed
range, accelerator
pedal is depressed too
much) may be dis-
played.
Use the EV drive mode
when it becomes avail-
able.
Indicates that the EV
drive mode has been
automatically canceled
*
The reason the EV
drive mode is not avail-
able (the battery
charge is low, speed is
higher than the EV
drive mode operating
speed range, accelera-
tor pedal is depressed
too much) may be dis-
played.
Drive the vehicle for a
while.

5647-2. Steps to take in an emergency
GS450h_OM_OM30E26U_(U)
■When recharging or replacing the 12-volt battery
●Make sure that the key is not inside the vehicle when recharging or replacing the
12-volt battery. The key may be locked in the vehicle if the alarm is activated.
(  P. 8 4 )
●In some cases, it may not be possible to unlock the doors using the smart access
system with push-button start when the 12-volt battery is discharged. Use the wire-
less remote control or the mechanical key to lock or unlock the doors.
●The hybrid system may not start on the fir st attempt after the 12-volt battery has
recharged but will start normally after the second attempt. This is not a malfunction.
●The power switch mode is memorized by the vehicle. When the 12-volt battery is
reconnected, the system will return to the mode it was in before the 12-volt battery
was discharged. Before disconnecting the 12 -volt battery, turn the power switch off.
If you are unsure what mode the power switch was in before the 12-volt battery dis-
charged, be especially careful when reconnecting the 12-volt battery.
CAUTION
■Avoiding 12-volt battery fires or explosions
Observe the following precautions to prev ent accidentally igniting the flammable
gas that may be emitted from the 12-volt battery:
●Make sure each jumper cable is connected to the correct terminal and that it is
not unintentionally in contact with any other than the intended terminal.
●Do not allow the other end of the jumper cable connected to the “+” terminal to
come into contact with any other parts or metal surfaces in the area, such as
brackets or unpainted metal.
●Do not allow the + and - clamps of the jumper cables to come into contact with
each other.
●Do not smoke, use matches, cigarette lighters or allow open flame near the 12-
volt battery.

5707-2. Steps to take in an emergency
GS450h_OM_OM30E26U_(U)
CAUTION
■When inspecting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
●If steam is seen coming from under the hood, do not open the hood until the
steam has subsided. The engine compartment may be very hot.
●After the hybrid system has been turned off, check that the indicator on the
power switch and the “READY” indicator are off.
When the hybrid system is operating, the gasoline engine may automatically
start, or the cooling fan may suddenly oper ate even if the gasoline engine stops.
Do not touch or approach rotating parts such as the fan, which may lead to fin-
gers or clothing (especially a tie, a scarf or a muffler) getting caught, resulting in
serious injury.
NOTICE
■When adding engine/power control unit coolant
Add coolant slowly after the hybrid syst em has cooled down sufficiently. Adding
cool coolant to a hot hybrid system too quickly can cause da mage to the hybrid
system.
■To prevent damage to the cooling system
Observe the following precautions:
●Avoid contaminating the coolant with foreign matter (such as sand or dust etc.).
●Do not use any coolant additives.
●Do not loosen the cool ant inlet cap or the
coolant reservoir cap while the hybrid sys-
tem and radiator are hot.
High temperature steam or coolant could
spray out.

GS450h_OM_OM30E26U_(U)
5938-1. Specifications
8
Vehicle specifications
■Temperature A, B, C
The temperature grades are A (the highest), B, and C, representing the
tire’s resistance to the generation of heat and its ability to dissipate heat
when tested under controlled conditio ns on a specified indoor labora-
tory test wheel.
Sustained high temperature can cause th e material of the tire to degenerate
and reduce tire life, and excessive temperature can lead to sudden tire failure.
Grade C corresponds to a level of performance which all passenger car tires
must meet under the Federal Motor Vehicle Safety Standard No. 109.
Grades B and A represent higher levels of performance on the laboratory test
wheel than the minimum required by law.
Warning: The temperature grades of a tire assume that it is properly inflated
and not overloaded.
Excessive speed, underinflation, or excessive loading, either separately or in
combination, can cause heat buildup and possible tire failure.