check engine Lexus GS350 2011 User Guide

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2-1. Driving procedures
GS_G_U (OM30C11U)
October 28, 2011 5:15 pm
Turn signal lever
■Turn signals can be operated when
The “ENGINE START STOP” switch is in IGNITION ON mode.
■If the indicators flash faster than usual
Check that a light bulb in the front or rear turn signal lights has not burned out.
Right turn
Left turn
Move and hold the lever part-
way to signal a lane change
The right hand signal will flash
until you release the lever.
Move and hold the lever part-
way to signal a lane change
The left hand signal will flash
until you release the lever.

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2-2. Instrument cluster
GS_G_U (OM30C11U)
October 28, 2011 5:15 pm
NOTICE
■To prevent damage to the engine and its components
●The engine may be overheating if the engine coolant temperature gauge is in the
red zone (“H”). In this case, immediately stop the vehicle in a safe place. Check
the engine after it has cooled completely. (→P. 5 7 8 )
●Do not let the indicator needle of the ta chometer enter the red zone, which indi-
cates the maximum engine speed.
■To activate the light sensitivity function properly
Do not affix a sticker or window tint to the rear window glass, or put an object
behind the rear seat.

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2-2. Instrument cluster
2
When driving
GS_G_U (OM30C11U)
October 28, 2011 5:15 pm
CAUTION
■If a safety system warning light does not come on
Should a safety system light such as ABS and the SRS airbag warning light not
come on when you turn to IGNITION ON mode, this could mean that these sys-
tems are not available to help protect you in an accident, which could result in death
or serious injury. Have the vehicle inspected by your Lexus dealer immediately if
this occurs.
■Warning lights
Warning lights inform the driver of malfunctions in the indicated
vehicle’s systems. ( →P. 5 3 4 )
*: These lights turn on when the “ENGINE START STOP” switch is turned
to IGNITION ON mode to indicate that a system check is being per-
formed. 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.
(U.S.A.)(Canada)(U.S.A.)(Canada)(GS460)
(U.S.A.)(Canada)(if equipped)
*******
*****
**

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2-2. Instrument cluster
GS_G_U (OM30C11U)
October 28, 2011 5:15 pm
■Current fuel consumption
■ Outside temperature
Displays the current rate of fuel consumption.
Displays the outside air temperature.
The temperature range that can be displayed is from
-40°F (-40°C) to 122°F (50°C).
■System check display
After switching the “ENGINE START STOP” switch to IGNITION ON mode,
“CHECK” is displayed while system operation is checked. When the system check
is complete, “COMPLETED” is displayed before returning to the normal screen.
NOTICE
■The multi-information display at low temperatures
Allow the interior of the vehicle to warm up before using the liquid crystal informa-
tion display. At extremely low temperatures, the information display monitor may
respond slowly, and display changes may be delayed.

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2-4. Using other driving systems
GS_G_U (OM30C11U)
October 28, 2011 5:15 pm
■The intuitive parking assist can be operated when
The “ENGINE START STOP” switch is in the IGNITION ON mode.
■When the system malfunctions
●If a malfunction occurs and no obstacles have been detected, a warning is dis-
played, and a malfunction beep sounds for 7 seconds.
If an obstacle has been detected, or another malfunction occurs in a different
sensor, the malfunction beeps will not sound.
●In the following circumstances the displayed warning will disappear:
• If you switch the screen to a different mode.
• If you turn off the intuitive parking assist main switch.
• If the vehicle speed exceeds 6 mph (10 km/h). Once the vehicle speed dropsbelow 6 mph (10 km/h), the warning will be displayed again.
●If the malfunction screen is displayed, the detection range of the dual sensors is
shortened. In this case, the necessity for obstacle evasion (whether the obstacle
will come within 0.8 ft. [25 cm] of the vehicle or not) will not be calculated.
■When using the intuitive parking assist
●The sensors’ detection areas and reaction times are limited. When moving for-
ward or reversing, check the areas surrounding the vehicle (especially the sides
of the vehicle) for safety, and drive slowly, using the brake to control the vehicle’s
speed.
• The sensors’ detection areas are limited to the areas around the vehicle’s frontand rear bumpers.
• Depending on the shape of the obstacle and other factors, the detection dis-
tance may shorten, or detection may be impossible.
• There will be a short delay between obstacle detection and display. Even at slow speeds, there is a possibility that the obstacle will come within 0.8 ft. (25
cm) of the vehicle before the display is shown and the warning beep sounds.
• Braking distance may differ according to the road conditions (rain, gravel etc.).
• It might be difficult to hear beeps due to the volume of audio system or air flow noise of air conditioning system.
• For long obstacles such as walls, the obstacle warning may change as the obstacle gets closer.

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2-5. Driving information
GS_G_U (OM30C11U)
October 28, 2011 5:15 pm
Winter driving tips
Carry out the necessary preparations and inspections before driving the
vehicle in winter. Always drive the vehicle in a manner appropriate to the
prevailing weather conditions.
■Pre-winter preparations
●Use fluids that are appropriate to the prevailing outside tempera-
tures.
• Engine oil
• Engine coolant
• Washer fluid
● Have a service technician inspect the level and specific gravity of
battery electrolyte.
● Have the vehicle fitted with four snow tires or purchase a set of
tire chains for the rear tires.
Ensure that all tires are the same size and brand, and that chains match
the size of the tires.
■ Before driving the vehicle
Perform the following according to the driving conditions.
●Do not try to forcibly open a window or move a wiper that is fro-
zen. Pour warm water over the frozen area to melt the ice. Wipe
away the water immediately to prevent it from freezing.
● To ensure proper operation of the climate control system fan,
remove any snow that has accumulated on the air inlet vents in
front of the windshield.
● Remove any ice that has accumulated on the vehicle chassis.
● Periodically check for and remove any excess ice or snow that
may have accumulated in the wheel well or on the brakes.

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3-7. Other interior features
3
Interior features
GS_G_U (OM30C11U)
October 28, 2011 5:15 pm
CAUTION
■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.

Maintenance and care4
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GS_G_U (OM30C11U)
May 21, 2010 12:06 pm
4-1. Maintenance and careCleaning and protecting the vehicle exterior............ 430
Cleaning and protecting the vehicle interior .............. 433 4-2. Maintenance
Maintenance requirements........................ 436
General maintenance .......... 438
Emission inspection and maintenance (I/M)
programs ................................ 441
4-3. Do-it-yourself maintenance Do-it-yourself service precautions ........................... 442
Hood .......................................... 445
Positioning a floor jack ......... 446
Engine compartment ........... 448
Tires............................................ 463
Tire inflation pressure........... 473
Wheels ....................................... 477
Air conditioning filter ............ 479
Electronic key battery.......... 482
Checking and replacing fuses ........................................ 484
Headlight aim ......................... 509
Light bulbs................................. 512

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4-2. Maintenance
GS_G_U (OM30C11U)
October 28, 2011 5:15 pm
General maintenance
Engine compartment
ItemsCheck points
Brake fluid• At the correct level? (→P. 4 5 7 )
Engine coolant• At the correct level? ( →P. 4 5 5 )
Engine oil• At the correct level? ( →P. 4 5 1 )
Exhaust system• No fumes or strange sounds?
Radiator/condenser/hoses• Not blocked with foreign matter?
(→ P. 4 5 7 )
Wa s h e r f l u i d• At the correct level? ( →P. 4 6 2 )
12 volt battery•Maintenance-free ( →P. 4 5 9 )
Listed below are the general maintenance items that should be performed
at the intervals specified in the “Warranty and Services Guide/Owner’s
Manual Supplement”. It is recommended that any problem you notice
should be brought to the attention of your Lexus dealer or qualified service
shop for advice.

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4-2. Maintenance
GS_G_U (OM30C11U)
October 28, 2011 5:15 pm
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.