seat Lexus GS250 2012 Owner's Manual

7537-2. Steps to take in an emergency
7
When trouble arises
GS350/250_EE (OM30C36E)
*1: Open door warning buzzer:
P. 7 6 3
*2: Driver’s and front passenger’s seat belt buzzer:
The driver’s and front passenger’s seat belt buzzer sounds to alert the
driver and front passenger that his or her seat belt is not fastened. The
buzzer sounds intermittently for 30 seconds after the vehicle reaches a
speed of 20 km/h (12 mph). Then, if the seat belt is still unfastened, the
buzzer will sound in a different tone for 90 more seconds.
Tire pressure warning light
When the light comes on:
Low tire inflation pressure
such as
• Natural causes (P.
754)
• Flat tire (P. 783, 798)
Adjust the tire inflation pres-
sure (including the full-size
spare tire) to the specified
level.
The light will turn off after
a few minutes. In case the
light does not turn off even
if the tire inflation pressure
is adjusted, have the sys-
tem checked by any autho-
rized Lexus dealer or
repairer, or another duly
qualified and equipped
professional.
When the light comes on
after blinking for 1 minute:
Malfunction in the tire pres-
sure warning systemHave the system checked by
any authorized Lexus dealer
or repairer, or another duly
qualified and equipped pro-
fessional.
Wa r n i n g
lightWarning light/DetailsCorrection procedure

7547-2. Steps to take in an emergency
GS350/250_EE (OM30C36E)
Front passenger detection sensor, seat belt reminder and warning buzzer
If luggage is placed on the front passenger seat, the front passenger detec-
tion sensor may cause the warning light to flash and the warning buzzer to
sound even if a passenger is not sitting in the seat.
If a cushion is placed on the seat, the sensor may not detect a passenger, and
the warning light may not operate properly.
If the malfunction indicator lamp comes on while driving
The malfunction indicator lamp will come on if the fuel tank becomes com-
pletely empty. If the fuel tank is empty, refuel the vehicle immediately. The
malfunction indicator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional
as soon as possible.
When the tire pressure warning light comes on
Carry out the following procedure after the tire temperature has lowered suf-
ficiently.
Check the tire inflation pressure and adjust to the appropriate level.
If the warning light does not go out even after several minutes, check that
the tire inflation pressure is at the specified level and carry out initialization.
The warning light may come on again if the above operations are conducted
without first allowing the tire temperature to lower sufficiently.
The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such as
natural air leaks and tire inflation pressure changes caused by temperature. In
this case, adjusting the tire inflation pressure will turn off the warning light
(after a few minutes).

7617-2. Steps to take in an emergency
7
When trouble arises
GS350/250_EE (OM30C36E)
(If equipped)
Indicates a malfunction in the adaptive front-
lighting system
Indicates a malfunction in:
• The SRS airbag system; or,
• The seat belt pretensioner system
(If equipped)
Indicates a malfunction in the Automatic High
Beam system
Indicates a malfunction in:
•The ABS; or,
• The brake assist system
Indicates a malfunction in the parking brake sys-
tem
Wa r n i n g m e s s a g eDetails
(Flashes)

7927-2. Steps to take in an emergency
GS350/250_EE (OM30C36E)Remove any dirt or foreign
matter from the wheel contact
surface.
If foreign matter is on the wheel
contact surface, the wheel nuts
may loosen while the vehicle is in
motion, causing the tire to come
off.
Install the tire and loosely tighten each wheel nut by hand by
approximately the same amount.
When replacing an aluminum
wheel with a steel wheel,
tighten the wheel nuts until the
tapered portion comes into
loose contact with the disc
wheel seat.
When replacing an aluminum
wheel with an aluminum
wheel, turn the wheel nuts
until the washers come into
contact with the disc wheel.
Lower the vehicle.
Installing the spare tire
1
2
Disc
wheel Tapered por-
Disc wheel
Wa s h e r
3

8608-2. Customization
GS350/250_EE (OM30C36E)
Front seats
(P. 157)
“Driver’s seat easy exit”
(Driver’s seat move-
ment when exiting the
Standard
Off
O—O
Partial
Selecting the door link-
ing driving position
memory with door
unlock operation
Driver’s
doorAll doors——O
Outside
rear view
mirrors
(P. 174)Automatic mirror fold-
ing and extending opera-
tion
*1
Linked to
the
locking/
unlocking
of the
doorsOff
——O
Linked to
operation
of the
engine
switch
Power
windows
(P. 178)
and moon
roof
*1
(P. 181)
Mechanical key linked
operationOffOn——O
Wireless remote control
linked operationOffOn——O
Buzzer sounds if oper-
ated using wireless
remote control
OnOff——O
ItemFunctionDefault
settingCustom-
ized set-
ting
123

871What to do if... (Troubleshooting)
GS350/250_EE (OM30C36E)
It is locked automatically to prevent theft of the vehicle.
(P. 211)
Is the window lock switch pressed?
The power window except for the one at the driver’s seat
cannot be operated if the window lock switch is pressed.
(P. 178)
The auto power off function will be operated if the vehi-
cle is left in ACCESSORY or IGNITION ON mode (the
engine is not running) for a period of time. (P. 211) The steering wheel cannot be turned after the engine is
stopped
The windows do not open or close by operating the power
window switches
The engine switch is turned off automatically

872What to do if... (Troubleshooting)
GS350/250_EE (OM30C36E)
The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat
belts?
(P. 752)
The parking brake indicator is on
Is the parking brake released? (P. 225)
Depending on the situation, other types of warning buzzer
may also sound. (P. 749, 757)

Did anyone inside the vehicle open a door or anything
move inside the vehicle during setting the alarm?
The sensor detects them and the alarm sounds. (P. 86)
To stop the alarm, turn the engine switch to IGNITION ON
mode or start the engine. A warning buzzer sounds during driving
An alarm is activated and the horn sounds (if equipped)

877Alphabetical index
GS350/250_EE (OM30C36E)
Anti-lock Brake System (ABS) .333
Function ................................333
Warning light........................750
Warning message..................761
Approach warning (dynamic
radar cruise control) ................264
Armrest ......................................635
Armrest door .............................639
Ashtrays.....................................626
Assist grip..................................641
Audio input................................536
Audio system .............................432
Audio input ...........................536
AUX port/
USB port ............536, 512, 524
Bluetooth
® audio ..................498
CD/DVD player ....................467
CD/DVD player information 488
DVD video ...........................475
iPod.......................................522
MP3/WMA disc ...................469
Optimal use...........................533
Portable music player ...........536
Radio ....................................458
Rear seat audio controls........537
Steering wheel audio switch .543
USB memory ........................510
Automatic headlight leveling
system ....................................231
Automatic High Beam ..............233
Automatic light control system 228Automatic transmission ............ 215
If the shift lever cannot be
shifted from P .................... 818
M mode ................................ 219
Paddle shift switches ........... 218
AUX port .................................. 536
Auxiliary boxes ........................ 620
AVS (Adaptive Variable
Suspension system) ................ 334
Back-up light
Replacing light bulb............. 729
Wattage ................................ 853
Battery ...................................... 667
Battery checking .................. 667
If the vehicle has discharged
battery................................ 825
Preparing and checking
before winter ..................... 359
Warning light ....................... 750
Blind Spot Monitor (BSM) ...... 354
Bluetooth
®
Audio system ....................... 498
Hands-free system
(for cellular phone)............ 542
Brake
Fluid ..................................... 849
Parking brake ....................... 225
Warning light ............... 749, 751
Warning message................. 757
B

878Alphabetical index
GS350/250_EE (OM30C36E)
Brake assist ...............................333
Break-in tips .............................189
Brightness control
Instrument panel light control ....
100
BSM (Blind Spot Monitor) .......354
Card key ....................................118
Care ...................................644, 648
Aluminum wheels.................645
Exterior .................................644
Interior ..................................648
Seat belts...............................649
Cargo hooks ..............................621
CD player ..................................467
Chains ........................................361
Child restraint system ..................59
Baby seats, definition .............59
Baby seats, installation ...........70
Child seats, definition .............59
Child seats, installation...........70
Installing CRS with ISOFIX
rigid anchors.........................73
Installing CRS with seat belts 70
Installing CRS with top strap .74
Junior seats, definition ............59
Junior seats, installation .........72Child safety................................. 58
Airbag precautions................. 47
Battery precautions ...... 670, 828
Child restraint system ............ 59
How your child should
wear the seat belt ........... 39, 41
Installing child restraints ....... 69
Moon roof precautions......... 184
Power window lock switch .. 178
Power window precautions.. 180
Rear door child-protectors ... 147
Removed electronic key
battery precautions ............ 699
Seat belt comfort guide .......... 39
Seat belt precautions .............. 43
Seat heater precautions ........ 630
Trunk precautions ............... 153
Child-protectors ....................... 147
Cleaning............................ 644, 648
Aluminum wheels ................ 645
Exterior ................................ 644
Interior ................................. 648
Seat belts .............................. 649
Clock ........................................ 625
Coat hooks ................................ 640
Condenser ................................ 667
Console box .............................. 617
Console box light...................... 617
Cooling system ......................... 665
Engine overheating .............. 830
C

879Alphabetical index
GS350/250_EE (OM30C36E)
Cruise control
Cruise control .......................254
Dynamic radar cruise control .....
258
Cup holders ...............................618
Curtain shield airbags .................45
Customizable features ...............856
DAB (Digital Audio Broadcast)463
Daytime running light system ..231
Defogger
Front windshield ...................416
Outside rear view mirrors .....430
Rear window.........................430
Differential
Front differential...................849
Rear differential ....................849
Digital Audio Broadcast (DAB)463
Dimension .................................836
Display
Dynamic radar cruise control .....
258
LKA (Lane-Keeping Assist).278
Multi-information display ....102
Remote Touch screen ...........370
Trip information ...................104
Warning message..................757
Do-it-yourself maintenance .......654
Door courtesy lights
Location ................................611
Wattage .................................853Door lock
Doors ................................... 146
Smart entry & start system .. 123
Wireless remote control ....... 141
Doors ........................................ 146
Automatic door locking and
unlocking system............... 148
Door glasses......................... 178
Door lock ............................. 146
Open door warning buzzer .. 127
Open door warning light ...... 752
Outside rear view mirrors .... 174
Rear door child-protector .... 147
Driver’s seat position memory . 162
Driving...................................... 186
Break-in tips ........................ 189
Correct posture ...................... 36
Driving mode select switch . 328
Procedures ........................... 186
Winter drive tips .................. 359
Dynamic radar cruise control ... 258
Function ............................... 258
Warning message......... 760, 766
DVD player ...................... 467, 475
D