Park Lexus GS250 2012 Owner's Manual

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GS350/250_EE (OM30C36E)
4-1. Before driving
Driving the vehicle ............ 186
Cargo and luggage............. 197
Trailer towing .................... 198
4-2. Driving procedures
Engine (ignition) switch .... 207
Automatic transmission..... 214
Turn signal lever ............... 222
Parking brake .................... 224
Horn .................................. 227
4-3. Operating the lights and wipers
Headlight switch ............... 228
Automatic High Beam ...... 233
Fog light switch................. 239
Windshield wipers and
washer................................241
Headlight cleaner switch ... 248
4-4. Refueling
Opening the fuel tank cap . 2494-5. Using the driving support
Cruise control .................... 254
Dynamic radar cruise con-
trol.....................................258
LKA (Lane-Keeping
Assist)...............................274
Lexus (parking assist-sen-
sor)....................................284
Lexus (parking assist moni-
tor)....................................297
Driving mode select switch 326
Driving assist systems ....... 331
Hill-start assist control ...... 339
PCS (Pre-Crash Safety sys-
tem)....................................341
BSM (Blind Spot Monitor) 352
4-6. Driving tips
Winter driving tips ............ 359
4Driving

TABLE OF CONTENTS6
GS350/250_EE (OM30C36E)
7-1. Essential information
Emergency flashers ........... 738
If your vehicle has to be stopped
in an emergency.................7397-2. Steps to take in an emergency
If your vehicle needs to be
towed...............................740
If you think something is
wrong................................747
Fuel pump shut off system 748
If a warning light turns on or a
warning buzzer sounds.....749
If a warning message is dis-
played................................757
If you have a flat tire (vehicles
with a spare tire)...............782
If you have a flat tire (vehicles
without a spare
tire).....................................797
If the engine will not start . 815
If the shift lever cannot be
shifted from P....................817
If the parking brake cannot be
released.............................818
If the electronic key does not
operate properly................821
If the vehicle battery is dis-
charged..............................824
If your vehicle overheats ... 829
If your vehicle becomes
stuck...................................832
7When trouble arises

17Pictorial index
GS350/250_EE (OM30C36E)
Multi-information display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 101
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 101
When the warning messages are displayed. . . . . . . . . . . . . . . . P. 757
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 224
Applying/releasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 224
Precautions against winter season. . . . . . . . . . . . . . . . . . . . . . . P. 360
Warning buzzer/message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 757
Turn signal lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 222
Headlight switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 228
Headlights/front position lights/tail lights/daytime running lightsP. 228
Front fog lights
*/rear fog light . . . . . . . . . . . . . . . . . . . . . . . . . P. 239
Windshield wiper and washer switch . . . . . . . . . . . . . . . . . . . . P. 241
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 241
Adding washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 671
Warning messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 771
Emergency flasher switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 738
Trunk opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 150
Hood lock release lever. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 657
Tilt and telescopic steering control switch . . . . . . . . . . . . . . . . P. 170
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 170
Driving position memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 161
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 409
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 409
Rear window defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 430
Audio system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 432
Audio system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 432
Hands-free system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 542
Trunk opener main switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 151
*: If equipped
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21Pictorial index
GS350/250_EE (OM30C36E)
Seat heater switches*2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 631
Seat ventilator switches
*2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 632
Lexus parking assist-sensor switch
*2. . . . . . . . . . . . . . . . . . . . P. 284
Rear sunshade switch
*2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 636
Driving mode select switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 326
Snow mode switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 216
*1: Refer to “Navigation System Owner’s Manual”.
*2: If equipped
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25Pictorial index
GS350/250_EE (OM30C36E)
Multi-information display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 101
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 101
When the warning messages are displayed. . . . . . . . . . . . . . . . P. 757
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 224
Applying/releasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 224
Precautions against winter season. . . . . . . . . . . . . . . . . . . . . . . P. 360
Warning buzzer/message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 757
Turn signal lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 222
Headlight switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 228
Headlights/front position lights/tail lights/daytime running lightsP. 228
Front fog lights
*/rear fog light . . . . . . . . . . . . . . . . . . . . . . . . . P. 239
Windshield wiper and washer switch . . . . . . . . . . . . . . . . . . . . P. 241
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 241
Adding washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 671
Warning messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 771
Emergency flasher switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 738
Trunk opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 150
Hood lock release lever. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 657
Tilt and telescopic steering control switch . . . . . . . . . . . . . . . . P. 170
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 170
Driving position memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 161
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 409
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 409
Rear window defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 430
Audio system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 432
Audio system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 432
Hands-free system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 542
Trunk opener main switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 151
*: If equipped
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29Pictorial index
GS350/250_EE (OM30C36E)
Rear sunshade switch*2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 636
Lexus parking assist-sensor switch
*2. . . . . . . . . . . . . . . . . . . . P. 284
Seat heater switches
*2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 631
Seat ventilator switches
*2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 632
Driving mode select switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 326
Snow mode switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 216
*1: Refer to “Navigation System Owner’s Manual”.
*2: If equipped
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511-1. For safe use
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For safety and security
GS350/250_EE (OM30C36E)
If the SRS airbags deploy (inflate)
Bruising and slight abrasions may result from contact with a deploying
(inflating) SRS airbag.
A loud noise and white powder will be emitted.
Parts of the airbag module (steering wheel hub, airbag cover and inflator) as
well as the seats, the glove box, parts of the front and rear pillars, and roof
side rails may be hot for several minutes. The airbag itself may also be hot.
The windshield may crack.
SRS airbag deployment conditions (SRS front airbags)
The SRS front airbags will deploy in the event of an impact that exceeds the
set threshold level (the level of force corresponding to an approximately 20
- 30 km/h [12 - 18 mph] frontal collision with a fixed wall that does not
move or deform).
However, this threshold velocity will be considerably higher in the follow-
ing situations:
• If the vehicle strikes an object, such as a parked vehicle or sign pole,
which can move or deform on impact
• If the vehicle is involved in an underride collision, such as a collision in
which the front of the vehicle “underrides”, or goes under, the bed of a
truck
Depending on the type of collision, it is possible that only the seat belt pre-
tensioners will activate.
SRS airbag deployment conditions (SRS side and curtain shield airbags)
The SRS side and curtain shield airbags will deploy in the event of an
impact that exceeds the set threshold level (the level of force corresponding
to the impact force produced by an approximately 1500 kg [3300 lb.] vehi-
cle colliding with the vehicle cabin from a direction perpendicular to the
vehicle orientation at an approximate speed of 20 - 30 km/h [12 - 18 mph]).
The SRS curtain shield airbags may also deploy in the event of a severe
frontal collision.

801-1. For safe use
GS350/250_EE (OM30C36E)
Exhaust gas precautions
Harmful substance to the human body is included in exhaust gases
if inhale.
CAUTION
Exhaust gases include harmful carbon monoxide (CO), which is colorless and
odorless. Observe the following precautions.
Failure to do so may cause exhaust gases enter the vehicle and may lead to an
accident caused by light-headedness, or may lead to death or a serious health
hazard.
Important points while driving
Keep the trunk lid closed.
If you smell exhaust gases in the vehicle even when the trunk lid is closed,
open the windows and have the vehicle inspected at any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional as
soon as possible.
When parking
If the vehicle is in a poorly ventilated area or a closed area, such as a
garage, stop the engine.
Do not leave the vehicle with the engine on for a long time.
If such a situation cannot be avoided, park the vehicle in an open space
and ensure that exhaust fumes do not enter the vehicle interior.
Do not leave the engine running in an area with snow build-up, or where it
is snowing. If snowbanks build up around the vehicle while the engine is
running, exhaust gases may collect and enter the vehicle.
Exhaust pipe
The exhaust system needs to be checked periodically. If there is a hole or
crack caused by corrosion, damage to a joint or abnormal exhaust noise, be
sure to have the vehicle inspected and repaired by any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.

901-2. Theft deterrent system
GS350/250_EE (OM30C36E)
Canceling and automatic re-enabling of the intrusion sensor and tilt sensor
The alarm will still be set even when the intrusion sensor and tilt sensor are
canceled.
After the intrusion sensor and tilt sensor are canceled, pressing the engine
switch or unlocking the doors using the entry function, wireless remote con-
trol or mechanical key will re-enable the intrusion sensor and tilt sensor.
The intrusion sensor and tilt sensor will automatically be re-enabled when
the alarm system is deactivated.
Intrusion sensor detection considerations
The sensor may trigger the alarm in the following situations:
Places with extreme vibrations or noises, or situations in which the vehicle
is subject to repeated impacts or vibrations:
• When parked in a parking garage
• When the vehicle is transported by a ferry, trailer, train, etc.
• When ice adhering to the vehicle is removed
• When the vehicle is in an automatic or high-pressure car wash
• When in a hail or lightning storm
A window or the moon roof is open.
In this case, the sensor may detect the
following:
• Wind or the movement of objects
such as leaves and insects inside the
vehicle
• Ultrasonic waves emitted from
devices such as the intrusion sensors
of other vehicles
• The movement of people outside the
vehicle
Unstable items, such as dangling acces-
sories or clothes hanging on the coat
hooks, are in the vehicle.

911-2. Theft deterrent system
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GS350/250_EE (OM30C36E)
For safety and security
Tilt sensor detection considerations (if equipped)
The sensor may trigger the alarm in the following situations:
The vehicle is transported by a ferry, trailer, train, etc.
The vehicle is parked in a parking garage.
The vehicle is inside a car wash that moves the vehicle.
Any of the tires loses air pressure.
The vehicle is jacked up.
An earthquake occurs or the road caves in.
NOTICE
To ensure the intrusion sensor function correctly
Installing accessories other than genuine Lexus parts or leaving objects
between the driver’s seat and front passenger’s seat may reduce the detec-
tion performance.
To ensure that the sensors operate prop-
erly, do not touch or cover them.
Do not spray air fresheners or other
products directly into the sensor holes.