fuel cap Lexus GS350 2012 Owner's Manual

3
1
8 7
6
5
4
3
2
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

15Pictorial index
GS350/250_EE (OM30C36E)
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 241
Precautions against winter season. . . . . . . . . . . . . . . . . . . . . . . P. 359
To prevent freezing (windshield wiper de-icer)
*1 . . . . . . . . . . P. 431
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . P. 646
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 249
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 249
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 838
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 672
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 850
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 359
Checking/rotation/tire pressure warning system
*1 . . . . . . . . . P. 672
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 782, 797
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 657
Opening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 657
Engine compartment cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 661
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 839
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 829
Warning messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 763
Headlights/front position lights/daytime running lights . . . . . . P. 228
Front fog lights
*1/rear fog light*2. . . . . . . . . . . . . . . . . . . . . . P. 239
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 222
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 228
Stop lights
Hill-start assist control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 339
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 228
Back-up light
*2
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 214
4
5
6
7
Light bulbs of the exterior lights for driving
(Replacing method: P. 720, Watts: P. 852)
*1: If equipped
*2: They may be located on the opposite side depending on the target region.
8
9
10
11
12
13
14

185
4Driving
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 ... 2484-4. Refueling
Opening the fuel tank cap . 249
4-5. Using the driving support
systems
Cruise control ................... 254
Dynamic radar cruise
control ............................. 258
LKA
(Lane-Keeping Assist) .... 274
Lexus
parking assist-sensor....... 284
Lexus
parking assist monitor..... 297
Driving mode select switch326
Driving assist systems ...... 331
Hill-start assist control ...... 339
PCS (Pre-Crash Safety
system)............................ 341
BSM (Blind Spot Monitor) 352
4-6. Driving tips
Winter driving tips ............ 359

1994-1. Before driving
4
Driving
GS350/250_EE (OM30C36E)
Trailer towing
Weight limits
Check the allowable towing capacity, GVM (Gross Vehicle
Mass), MPAC (Maximum Permissible Axle Capacity), and per-
missible draw bar load before towing. (P. 836)
Towing hitch/bracket
Lexus recommends the use of the Lexus hitch/bracket for your
vehicle. Other products of a suitable nature and comparable qual-
ity may also be used.
To prevent an accident
The handling of the vehicle will feel different when towing a
trailer. Beware of the 3 most common causes of towing-related
accidents: driver error, excessive speed, and overloading.
The strain of towing a trailer will have a negative impact on the
running performance, handling, fuel consumption and endurance
of your vehicle. Use the vehicle features in the correct manner and
operate the vehicle with care for safer driving and optimal comfort.
Damage and/or malfunctions that occur as a result of towing per-
formed for commercial purposes are not covered by the Lexus war-
ranty.
Ask your local authorized Lexus dealer or repairer, or another duly
qualified and equipped professional for further details before tow-
ing, as there are additional legal requirements in some countries.

249
4 4-4. Refueling
Driving
GS350/250_EE (OM30C36E)
Opening the fuel tank cap
Close all the doors and windows, and turn the engine switch off.
Confirm the type of fuel.
Fuel types
EU area:
Unleaded gasoline conforming to European standard EN228, Research
Octane Number of 95 or higher
Except EU area:
Unleaded gasoline, Research Octane Number of 95 or higher
Perform the following steps to open the fuel tank cap:
Before refueling the vehicle

2504-4. Refueling
GS350/250_EE (OM30C36E)
CAUTION
When refueling the vehicle
Observe the following precautions while refueling the vehicle. Failure to do
so may result in death or serious injury.
After exiting the vehicle and before opening the fuel door, touch an
unpainted metal surface to discharge any static electricity. It is important
to discharge static electricity before refueling because sparks resulting
from static electricity can cause fuel vapors to ignite while refueling.
Always hold the grips on the fuel tank cap and turn it slowly to remove it.
A whooshing sound may be heard when the fuel tank cap is loosened.
Wait until the sound cannot be heard before fully removing the cap. In hot
weather, pressurized fuel may spray out the filler neck and cause injury.
Do not allow anyone that has not discharged static electricity from their
body to come close to an open fuel tank.
Do not inhale vaporized fuel.
Fuel contains substances that are harmful if inhaled.
Do not smoke while refueling the vehicle.
Doing so may cause the fuel to ignite and cause a fire.
Do not return to the vehicle or touch any person or object that is statically
charged.
This may cause static electricity to build up, resulting in a possible igni-
tion hazard.
When refueling
Observe the following precautions to prevent fuel overflowing from the
fuel tank:
Securely insert the fuel nozzle into the fuel filler neck.
Stop filling the tank after the fuel nozzle automatically clicks off.
Do not top off the fuel tank.
NOTICE
Refueling
Do not spill fuel during refueling.
Doing so may damage the vehicle, such as causing the emission control
system to operate abnormally or damaging fuel system components or the
vehicle’s painted surface.

2514-4. Refueling
4
Driving
GS350/250_EE (OM30C36E)With the doors unlocked, press
the center of the rear edge of
the fuel filler door.
Push until you hear a click and
take your hand away to slightly
open the fuel filler door. Then
open the door fully by hand.
Turn the fuel tank cap slowly
to open.
Hang the fuel tank cap on the
back of the fuel filler door.
Opening the fuel tank cap
1
2
3

2534-4. Refueling
4
Driving
GS350/250_EE (OM30C36E)After refueling, turn the fuel
tank cap until you hear a click.
Once the cap is released, it
will turn slightly in the oppo-
site direction.
Close the fuel filler door, and
press the center of the rear
edge of the fuel filler door
until you hear a click.
When you lock the doors, the fuel
filler door will lock also.
Use of ethanol blended gasoline in a gasoline engine
Lexus allows the use of ethanol blended gasoline where the ethanol content
is up to 10%. Make sure that the ethanol blended gasoline to be used has a
Research Octane Number that follows the above.
Fuel filler door lock condition
The fuel filler door may not be locked even when the vehicle’s doors are
locked in the following conditions:
When operating the door lock button inside the vehicle
When the fuel filler door is closed after the vehicle’s doors are locked
Closing the fuel tank cap
1
2
CAUTION
When replacing the fuel tank cap
Do not use anything but a genuine Lexus fuel tank cap designed for your
vehicle. Doing so may cause a fire or other incident which may result in
death or serious injury.

691
6 6-3. Do-it-yourself maintenance
Maintenance and care
GS350/250_EE (OM30C36E)
Tire inflation pressure
Effects of incorrect tire inflation pressure
Driving with incorrect tire inflation pressure may result in the following:
Reduced fuel efficiency
Reduced driving comfort and tire life
Reduced safety
Damage to the drive train
If a tire needs frequent inflating, have it checked by any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
Instructions for checking tire inflation pressure
When checking tire inflation pressure, observe the following:
Check only when the tires are cold.
If your vehicle has been parked for at least 3 hours or has not been driven
for more than 1.5 km or 1 mile, you will get an accurate cold tire inflation
pressure reading.
Always use a tire pressure gauge.
The appearance of the tire can be misleading. In addition, tire inflation pres-
sure that is even just a few pounds off can affect ride quality and handling.
Do not reduce tire inflation pressure after driving. It is normal for tire infla-
tion pressure to be higher after driving.
Never exceed the vehicle capacity weight.
Passengers and luggage weight should be placed so that the vehicle is bal-
anced.
Make sure to maintain proper tire inflation pressure. Tire inflation
pressure should be checked at least once per month. However,
Lexus recommends that tire inflation pressure be checked once
every two weeks. (P. 850)

713 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS350/250_EE (OM30C36E)
10LH ECU-IG10
VDIM, D-SW MODULE (Blind Spot
Monitor, heated steering wheel), driver
support system, AFS, EPB
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/sequen-
tial multiport fuel injection system, stop
lights, smart entry & start system, steer-
ing lock system
18LH J/B-B7.5Body ECU
19S/ROOF20Moon roof
20P/SEAT2 F/L25Power seats
21TI & TE20Electric tilt and telescopic steering col-
umn
22A/C7.5Air conditioning system
FuseAmpereCircuit