2013 Lexus GS350 check engine

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GS350_U (OM30C34U)
5-6. Using the storage featuresList of storage features ..............551
• Glove box ............................... 553
• Console box .......................... 554
• Cup holders ........................... 555
• Auxiliary boxes ..................... 557
Trunk features ..............................558
5-7. Other interior features Sun visors and vanity mirrors ..................... 561
Clock .............................................. 562
Ashtrays ......................................... 563
Power outlets ............................... 564
Heated steering wheel ............ 566
Seat heaters/ seat ventilators ......................... 568
Armrest ............................................ 571
Rear sunshade/ rear door sunshades...............572
Trunk storage extension ...........575
Coat hooks .................................... 576
Assist grip.......................................577
Utility hook ................................... 578
Garage door opener ................579
Safety Connect...........................586 6-1. Maintenance and care
Cleaning and protecting the vehicle exterior ................ 594
Cleaning and protecting the vehicle interior.................. 598
6-2. Maintenance Maintenance requirements .... 601
General maintenance.............. 604
Emission inspection and maintenance (I/M)
programs ....................................608
6-3. Do-it-yourself maintenance Do-it-yourself service precautions................................ 609
Hood ................................................. 612
Positioning a floor jack............... 613
Engine compartment ................. 615
Tires.................................................. 629
Tire inflation pressure ............... 639
Wheels ........................................... 642
Air conditio ning filter ............... 644
Electronic key battery.............. 646
Checking and replacing fuses.............................................. 648
Headlight aim ................................ 661
Light bulbs .................................... 6636Maintenance and care

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GS350_U (OM30C34U)
For your information
Please note that this manual applies to all models and explains all equipment, includ-
ing options. Therefore, you may find some explanations for equipment not installed
on your vehicle.
All specifications provided in this manual are current at the time of printing. How-
ever, because of the Lexus policy of continual product improvement, we reserve the
right to make changes at any time without notice.
Depending on specifications, the vehicle shown in the illustrations may differ from
your vehicle in terms of color and equipment.
Approximately five hours after the engine is turned off, you may hear sound coming
from under the vehicle for several minutes. This is the sound of a fuel evaporation
leakage check and, it does not indicate a malfunction.
A wide variety of non-genuine spare parts and accessories for Lexus vehicles are
currently available in the market. You should know that Toyota does not warrant
these products and is not responsible for their performance, repair, or replacement,
or for any damage they may cause to, or adverse effect they may have on, your
Lexus vehicle.
This vehicle should not be modified with non-genuine Lexus products. Modification
with non-genuine Lexus products could affect its performance, safety or durability,
and may even violate governmental regula tions. In addition, damage or perfor-
mance problems resulting from the modification may not be covered under war-
ranty.
Main Owner’s Manual
Noise from under vehicle af ter turning off the engine
Accessories, spare parts and modification of your Lexus

GS350_U (OM30C34U)
9
The installation of a mobile two-way radio system in your vehicle could affect elec-
tronic systems such as:
●Multiport fuel injection system/sequential multiport fuel injection system
●Dynamic radar cruise control system
●Cruise control system
●Anti-lock brake system
●Vehicle dynamics integrated management
●SRS airbag system
●Seat belt pretensioner system
Be sure to check with your Lexus dealer for precautionary measures or special
instructions regarding installation of a mobile two-way radio system.
Your Lexus equipped with several sophisticated computers that will record certain
data, such as: •Engine speed
• Accelerator status
•Brake status
• Vehicle speed
• Shift position
The recorded data varies according to the vehicle grade level and options equipped
with. Furthermore, these computers do not record conversations, sounds or pictures.
● Data usage
Lexus may use the data recorded in these computers to diagnose malfunctions,
conduct research and development, and improve quality.
Lexus will not disclose the recorded data to a third party except:
• With the consent of the vehicle owner or with the consent of the lessee if the
vehicle is leased
• In response to an official request by the police, a court of law or a government agency
• For research purposes where the data is not tied to a specific vehicle or vehicle owner
● Usage of data collected through Safety Connect / Lexus Enform (U.S. mainland
only)
If your Lexus has Safety Connect or Lexus Enform and if you have subscribed to
those services, please refer to the Safety Connect / Lexus Enform Telematics Sub-
scription Service Agreement for informat ion on data collected and its usage.
Installation of a mobile two-way radio system
Vehicle data recording

15Pictorial index
GS350_U (OM30C34U)
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 196
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 298
To prevent freezing (windshield wiper de-icer)
* . . . . . . . . . . . . . . . . . . . . P. 366
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 596
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 204
Refueling method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 204
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 754
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 629
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 759
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 298
Checking/rotation/tire pressure warning system. . . . . . . . . . . . . . . . . . . . P. 629
Coping with flat tires. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 722
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 612
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 6 1 2
Engine compartment cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 616
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 7 5 4
Coping with overheat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 747
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 704
Headlights/parking lights/daytime running ligh ts . . . . . . . . . . . . . . . . . . P. 190
Fog lights
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 195
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 184
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 190
Stop lights
Hill-start assist control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 276
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 190
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 178
Side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 190
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Light bulbs of the ex terior lights for driving
(Replacing method: P. 663, Watts: P. 761)
*: If equipped
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271-1. For safe use
GS350_U (OM30C34U)
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For safety and security
CAUTION
Observe the following precautions.
Failure to do so may cause the driver’s floor mat to slip, possibly interfering with the
pedals while driving. An unexpectedly high speed may result or it may become diffi-
cult to stop the vehicle, lead ing to an accident, or leading to death or a serious injury.
■When installing the driver’s floor mat
●Do not use floor mats designed for other models or different model year vehicles,
even if they are Lexus Genuine floor mats.
●Only use floor mats designed for the driver’s seat.
●Always install the floor mat securely using the retaining hooks (clips) provided.
●Do not use two or more floor mats on top of each other.
●Do not place the floor mat bo ttom-side up or upside-down.
■Before driving
●Check that the floor mat is securely fixed in
the correct place with all the provided
retaining hooks (clips). Be especially care-
ful to perform this check after cleaning the
floor.
●With the engine stopped and the shift lever
in P, fully depress each pedal to the floor to
make sure it does not interfere with the
floor mat.

671-1. For safe use
GS350_U (OM30C34U)
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For safety and security
Exhaust gas precautions
Harmful substance to the human body is included in exhaust gases if
inhale.
CAUTION
Exhaust gases include harmful carbon mono xide (CO), which is colorless and odor-
less. Observe the following precautions.
Failure to do so may cause exhaust gases enter the vehicle and may lead to an acci-
dent 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 your Lexus dealer as soon as pos-
sible.
■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 your Lexus dealer.

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GS350_U (OM30C34U)
2. Instrument cluster
*1: These lights turn on when the engine switch is turned to IGNITION ON mode to
indicate that a system check is being performed. They will turn off after the engine
is on, or after a few seconds. There may be a malfunction in a system if the lights
do not come on, or turn off. Have the vehicle inspected by your Lexus dealer.
*2: The light flashes to indicate a malfunction.
*1, 2
(if equipped)
“PCS” warning light
(  P. 6 8 7 , 7 0 2 )*1
Tire pressure warning light
( P. 6 9 0 )

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GS350_U (OM30C34U)
2. Instrument cluster
*1: These lights turn on when the engine switch is turned to IGNITION ON mode to
indicate that a system check is being performed. They will turn off after the engine
is on, or after a few seconds. There may be a malfunction in a system if the lights
do not come on, or turn off. Have the vehicle inspected by your Lexus dealer.
*2: The light flashes to indicate that the system is operating.
*3: The light comes on when the system is turned off. The light flashes faster than
usual to indicate that the system is operating.
CAUTION
■If a safety system warning light does not come on
Should a safety system light such as the ABS and SRS warning light not come on
when you start the engine, this could mean that these systems are not available to
help protect you in an accident, which coul d result in death or serious injury. Have
the vehicle inspected by your Lexus dealer immediately if this occurs.