Page 648 of 844

648
GS350_OM_OM30D41U_(U)
6-3. Do-it-yourself maintenance
■If the tread on snow tires wears down below 0.16 in. (4 mm)
The effectiveness of the tires as snow tires is lost.
■Situations in which the tire pressure warning system may not operate properly
●In the following cases, the tire pressure warning system may not operate properly.
• If non-genuine Lexus wheels are used.
• A tire has been replaced with a tire that is not an OE (Original Equipment) tire.
• A tire has been replaced with a tire that is not of the specified size.
• Tire chains etc. are equipped.
• Lock nuts are equipped.
• An auxiliary-supported run- flat tire is equipped.
• If a window tint that affects the radio wave signals is installed.
• If there is a lot of snow or ice on the vehicle, particularly around the wheels or wheel housings.
• If the tire inflation pressure is extremely higher than the specified level.
●Performance may be affected in the following situations.
• Near a TV tower, electric power plant, gas station, radio station, large display,
airport or other facility that generates strong radio waves or electrical noise
• When carrying a portable radio, cellular phone, cordless phone or other wire- less communication device
Vehicles with the tire inflation pressure display function: If tire position information
is not correctly disp layed due to the radio wave conditions, the display may be
corrected by driving and changing the radio wave conditions.
●When the vehicle is parked, the time taken for the warning to start or go off could
be extended.
●When tire inflation pressure declines rapi dly for example when a tire has burst, the
warning may not function.
■The initialization operation
●Make sure to carry out initialization after adjusting the tire inflation pressure.
Also, make sure the tires are cold before carrying out initialization or tire inflation
pressure adjustment.
●If you have accidentally turned the engine sw itch off during initialization, it is not
necessary to press the reset switch again as initialization will restart automatically
when the engine switch has been turned to IGNITION ON mode for the next time.
●If you accidentally press the reset switch when initialization is not necessary, adjust
the tire inflation pressure to the specified level when the tires are cold, and conduct
initialization again.
Page 669 of 844
GS350_OM_OM30D41U_(U)
6696-3. Do-it-yourself maintenance
6
Maintenance and care
11DOOR FL30Outside rear view mirror defoggers, power
window (front left-hand)
12CAPACITOR
(HV)10No circuit
13STRG LOCK15Steering lock
14D/L NO.225Power door lock system
15DOOR RL30Power window (rear left-hand)
16HAZ15Turn signal lights, emergency flashers
17LH-IG210
Multiport fuel injection system/sequential
multiport fuel injection system, stop lights,
smart access system with push-button start,
steering lock system
18LH J/B-B7. 5Body ECU
19S/ROOF20Moon roof
20P/ S E AT 2 F/ L25Po w e r s e a t s
21TI & TE20Electric tilt and telescopic steering column
22A/C7. 5Air conditioning system
FuseAmpereCircuit
Page 670 of 844
670
GS350_OM_OM30D41U_(U)
6-3. Do-it-yourself maintenance
■Passenger’s side instrument panel
FuseAmpereCircuit
1P/ S E AT 1 F/ R30Po w e r s e a t s
2FR P/OUTLET15Po w e r o u t l e t ( f r o n t )
3RR P/OUTLET15Power outlet (rear)
4P/ S E AT 2 F/ R25Po w e r s e a t s
5AV S20AV S
6STRG HTR15Heated steering wheel
7WA S H20Windshield washer
8RH ECU-IG10
Navigation system, VGRS, pre-collision seat
belts, air conditioning system, Lexus night
view
9RH-IG10
Tension reducer, seat heater/ventilator
switches, AWD system, front right-hand
door ECU, CAN gateway ECU, tire pres-
sure warning system, power seats, driver
monitor system
10DOOR FR30
Front right-hand door control system (out-
side rear view mirror defoggers, power win-
dow)
11DOOR RR30Power window (rear right-hand)
12RAD NO.230Audio system
13AM27. 5Smart access system with push-button start
Page 720 of 844
7207-2. Steps to take in an emergency
GS350_OM_OM30D41U_(U)
Indicates that the trunk is
not fully closedIf the vehicle reaches a
speed of 3 mph (5
km/h), flashes
and a buzzer sounds
to indicate that the
trunk is not yet fully
closed.
Close the trunk.
Indicates that the win-
dows are not fully closed
(with the engine switch
off, and the driver’s door
open)
Close all the windows.
Indicates that the moon
roof is not fully closed
(with the engine switch
off, and the driver’s door
open)
Close the moon roof.
Indicates that the win-
dows and the moon roof
are not fully closed (with
the engine switch off, and
the driver’s door open)
Close all the windows
and the moon roof.
Wa r n i n g m e s s a g eDetailsCorrection procedure
(Flashes)
(Flashes)
(Flashes)
Page 754 of 844
754
GS350_OM_OM30D41U_(U)
7-2. Steps to take in an emergency
If the electronic key does not operate properly
■Doors
Use the mechanical key
(P. 100) in order to perform
the following operations:
Locks all the doors
Closes the windows and moon
roof
* (turn and hold)
Unlocks the door
Turning the key rearward unlocks
the driver’s door. Turning the key
once again within 5 seconds
unlocks the other doors.
Opens the windows and moon
roof
* (turn and hold)
*: This setting must be customized at your Lexus dealer.
If communication between the ele ctronic key and vehicle is inter-
rupted ( P. 110) or the electronic key cann ot be used because the bat-
tery is depleted, the smart access system with push-button start and
wireless remote control cannot be us ed. In such cases, the doors and
trunk can be opened and the engine can be started by following the
procedure below.
Locking and unlocking the doors, unlocking the trunk and key
linked functions
1
2
3
4
Page 788 of 844

788
GS350_OM_OM30D41U_(U)
8-1. Specifications
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pres-
sureTire pressure when the vehicle has been parked for
three hours or more, or has not been driven more
than 1 mile or 1.5 km under that condition
Maximum inflation pres-
sureThe maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a man-
ufacturer
Accessory weight
The combined weight (in excess of those standard
items which may be replaced) of automatic transmis-
sion, power steering, power brakes, power windows,
power seats, radio and heater, to the extent that these
items are available as factory-installed equipment
(whether installed or not)
Curb weight
The weight of a motor vehicle with standard equip-
ment, including the maximum capacity of fuel, oil and
coolant, and if so equipped, air conditioning and
additional weight optional engine
Maximum loaded vehicle
weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight150 lb. (68 kg) times the number of occupants speci-
fied in the second column of Table 1
* that follows
Occupant distributionDistribution of occupants in a vehicle as specified in
the third column of Table 1
* below
Production options weight
The combined weight of installed regular production
options weighing over 5 lb. (2.3 kg) in excess of the
standard items which they replace, not previously
considered in curb weight or accessory weight,
including heavy duty brakes, ride levelers, roof rack,
heavy duty battery, and special trim
RimA metal support for a tire or a tire and tube assembly
upon which the tire beads are seated
Page 798 of 844

798
GS350_OM_OM30D41U_(U)
8-2. Customization
Po w e r
windows
( P. 1 4 7 )
and moon
roof
( P. 1 5 0 )
Mechanical key linked
operationOffOn——O
Wireless remote control
linked operationOff
On
(Open only)
——O
Buzzer sounds if operated
using wireless remote con-
trol
OnOff——O
Tu r n s i g n a l
lever
( P. 1 8 6 )
The number of times the
turn signal lights flash auto-
matically when the turn sig-
nal lever is moved to the
first position during a lane
change
(After flashing the turn sig-
nal lights when turning left
or right while this function
is off and the turn signal
lever is moved to the first
position in direction of the
flashing light, the turn sig-
nal lights can be selected
to be flashing or off.)
3
5
——O
7
Off
(the turn
signal lights keep flash- ing if the
turn signal lever is
moved to the first
position in
direction of flashing light)
Off
(the turn
signal lights will be off if the turn
signal lever
is moved to the first
position in
direction of flashing light)
ItemFunctionDefaultsettingCustom-
ized setting123
Page 825 of 844
825What to do if... (Troubleshooting)
GS350_OM_OM30D41U_(U)
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat can-
not be operated if the window lock switch is pressed. (P. 1 4 7 )
●The auto power off function will be operated if the vehicle is left
in ACCESSORY or IGNITION ON mode (the engine is not
running) for a period of time. ( P. 1 76 )
●The seat belt remind er light is flashing
Are the driver and the front passenger wearing the seat belts?
( P. 705)
●The parking brake indicator is on
Is the parking brake released? ( P. 1 8 8 )
Depending on the situation, ot her types of warning buzzer may
also sound. ( P. 702, 712)
The windows do not open or close by operating the power win-
dow switches
The engine switch is turned off automatically
A warning buzzer sounds during driving