2010 Lexus GS350 run flat

TABLE OF CONTENTSIndex
6
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
5-2. Steps to take in an emergency
If a warning light turns 
on or a warning buzzer 
sounds... ......................................... 534
If a warning message is 
displayed ....................................... 543
If you have a flat tire (Vehicles 
with standard tires) .................. 556
If you have a flat tire (Vehicles 
with run-flat tires) ...................... 566
If the engine will not start ......... 568
If the shift lever cannot be 
shifted from “P”.......................... 569
If you lose your keys .................... 570
If the electronic key does 
not operate properly ................ 571
If the 12 volt battery is 
discharged ................................... 574
If your vehicle overheats ........... 578
If the vehicle becomes 
stuck................................................. 581
If your vehicle has to be stopped 
in an emergency ....................... 5836-1. Specifications
Maintenance data 
(fuel, oil level, etc.).................... 586
Fuel information ............................. 601
Tire information............................ 604
6-2. Customization
Customizable features................ 618
6-3. Initialization
Items to initialize ........................... 624
Reporting safety defects 
for U.S. owners........................... 626
Seat belt instructions 
for Canadian owners 
(in French) .................................... 627
Abbreviation list........................ 630
Alphabetical index ................... 632
What to do if... ............................ 642
6Vehicle specifications
7For US owners
Index

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GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Tire
●Rotation
●Replacement
●Inflation pressure
●Information
P. 463
P. 556
P. 598
P. 604
Tail lights P. 157
Side marker light P. 157
Trunk P. 48
Rear window defogger P. 255
Door P. 43
Fuel filler door P. 82
Turn signal light P. 144
: If equipped

113
1-7. Safety information
1
Before driving
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
CAUTION
■Child restraint precautions
●Do not use the seat belt extender when installing a child restraint system on the
front or rear passenger seat. If installing a child restraint system with the seat belt
extender connected to the seat belt, the seat belt will not securely hold the child
restraint system, which could cause death or serious injury to the child or other
passengers in the event of a sudden stop, sudden swerve or accident.
●Do not allow the child to lean his/her head or any part of his/her body against the
door or the area of the seat, front pillar or roof side rail from which the side air-
bags or curtain shield airbags deploy even if the child is seated in the child
restraint system. It is dangerous if the side airbags and curtain shield airbags
inflate, and the impact could cause death or serious injury to the child.
●Make sure you have complied with all installation instructions provided by the
child restraint manufacturer and that the system is properly secured. If it is not
secured properly, it may cause death or serious injury to the child in the event of a
sudden stop, sudden swerve or an accident.
■Child restraint lock function belt precaution
Do not allow children to play with the child restraint lock function belt. If the belt
becomes twisted around a child’s neck, it will not be possible to pull the belt out
leading to choking or other serious injuries that could result in death.
If this occurs and the buckle cannot be unfastened, scissors should be used to cut
the belt.
■When the child restraint system is not in use
●Keep the child restraint system properly secured on the seat even if it is not in use.
Do not store the restraint unsecured in the passenger compartment.
●If it is necessary to detach the child restraint system, remove it from the vehicle or
store it securely in the trunk. This will prevent it from injuring passengers in the
event of a sudden stop, sudden swerve or accident.

198
2-4. Using other driving systems
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
■Smear effect
CAUTION
■When using the rear view monitor system
Observe the following precautions to avoid an accident that could result in death or
serious injuries.
●Never depend solely on the monitor system when reversing.
●Always check visually and with the mirrors to confirm your intended path is clear.
●Depicted distances between objects and flat surfaces differ from actual dis-
tances.
●Do not use the system if the trunk is open.
■Conditions which may affect the rear view monitor system
●If the back of the vehicle is hit, the camera’s position and mounting angle may
change. Contact your Lexus dealer.
●Rapid temperature changes, such as when hot water is poured on the vehicle in
cold weather, may cause the system to function abnormally.
●If the camera lens is dirty, it cannot transmit a clear image. Rinse with water and
wipe with a soft cloth. If extremely dirty, wash with a mild cleanser and rinse.
●The displayed image may be darker and moving images may be slightly distorted
when the system is cold.
If a bright light (for example, sunlight
reflected off the vehicle body) is picked up by
the camera, a smear effect
* peculiar to the
camera may occur.
*: Smear effect—A phenomenon that occurs
when a bright light (for example, sunlight
reflected off the vehicle body) is picked up
by the camera; when transmitted by the
camera, the light source appears to have a
vertical streak above and below it.

440
4-2. Maintenance
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Vehicle exterior
ItemsCheck points
Doors/trunk• Operate smoothly?
Engine hood• The lock system works properly?
Fluid leaks• Is there any leakage after parking?
Ti r e
• Inflation pressure is correct?
• Tire surfaces not worn or dam-
aged?
• Tires rotated according to the
maintenance schedule?
• Wheel nuts are not loose?
CAUTION
■If the engine is running
Turn off the engine and ensure that there is adequate ventilation before performing
maintenance checks.

When trouble arises5
519
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
5-1. Essential information
Emergency flashers.............. 520
If your vehicle needs 
to be towed ............................. 521
If you think something is 
wrong ..................................... 530
Fuel pump shut off 
system ...................................... 531
Event data recorder .............. 5325-2. Steps to take in an 
emergency
If a warning light turns 
on or a warning buzzer 
sounds..................................... 534
If a warning message is 
displayed................................ 543
If you have a flat tire (Vehicles 
with standard tires) ............. 556
If you have a flat tire (Vehicles 
with run-flat tires)................ 566
If the engine will not start .... 568
If the shift lever cannot be 
shifted from “P”.................... 569
If you lose your keys .............. 570
If the electronic key does 
not operate properly............ 571
If the 12 volt battery is 
discharged ............................. 574
If your vehicle overheats ..... 578
If the vehicle becomes 
stuck......................................... 581
If your vehicle has to be stopped 
in an emergency .................. 583

5
When trouble arises
521
5-1. Essential information
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
If your vehicle needs to be towed
Before towing
The following may indicate a problem with your automatic transmission.
Contact your Lexus dealer before towing.
●The engine is running, but the vehicle will not move.
●The vehicle makes an abnormal sound.
If towing is necessary, we recommend having your vehicle towed by your
Lexus dealer or a commercial towing service, using a lift-type truck or a flat
bed truck.
Use a safety chain system for all towing, and abide by all state/provincial
and local laws.
If towing from the rear, the wheels and axle on the ground must be in good
condition.
If they are damaged, use a towing dolly or flat bed truck.

530
5-1. Essential information
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably needs
adjustment or repair. Contact your Lexus dealer as soon as possible.
■Visible symptoms
●Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is normal.)
●Flat-looking tires or uneven tire wear
●Engine coolant temperature gauge needle continually points
higher than normal
■Audible symptoms
●Changes in exhaust sound
●Excessive tire squeal when cornering
●Strange noises related to the suspension system
●Pinging or other noises related to the engine
■Operational symptoms
●Engine missing, stumbling or running rough
●Appreciable loss of power
●Vehicle pulls heavily to one side when braking
●Vehicle pulls heavily to one side when driving on a level road
●Loss of brake effectiveness, spongy feeling, pedal almost touches
the floor