2014 Lexus GX460 warning

5227-2. Steps to take in an emergency
GX460_OM_OM60K80U_(U)
■Warning message in radar cruise mode (if equipped)
In the following situations, the warning message may not be displayed even if vehicle-to-
vehicle distance decreases:
●When your vehicle and the vehicle ahead are traveling at the same speed or the vehicle
ahead is traveling more quickly than your vehicle
●When the vehicle ahead is traveling at a very low speed
●Immediately after cruise control speed is set
●At the instant the accelerator pedal is depressed
■The LDA (Lane Departure Alert) lane departure warning function (if equipped)
In the following situations, the warning messag e will not be displayed even if a lane line is
crossed.
●When the vehicle speed deviates from the operating range of the LDA system func-
tions
●When the lane lines cannot be recognized
■Conditions that the tire pressure warning system may not function properly
 P. 4 6 8
■Warning buzzer
In some cases, the buzzer may not be heard due to being in a noisy location or audio
sound.

5267-2. Steps to take in an emergency
GX460_OM_OM60K80U_(U)
■Warning buzzer
In some cases, the buzzer may not be heard due to being in a noisy location or audio
sound.
Once
An attempt was made to start the
engine with the shift lever in an
incorrect position.
Shift the shift lever to P and start
the engine.
Once
An attempt was made to turn the
engine switch off when the shift
lever was not in P.
To turn off the engine, first shift
the shift lever to P and then turn
the engine switch off.
Interior
buzzerExteriorbuzzerWa r n i n g m e s s a g eDetails/Actions
(Flashes)
(Flashes)

GX460_OM_OM60K80U_(U)
5718-1. Specifications
8
Vehicle specifications
This information has been prepared in accordance with regulations issued by the
National Highway Traffic Safety Administration of the U.S. Department of Trans-
portation.
It provides the purchasers and/or prospective purchasers of Lexus vehicles with
information on uniform tire quality grading.
Your Lexus dealer will help answer any questions you may have as you read this infor-
mation.
■DOT quality grades
All passenger vehicle tires must conform to Federal Safety Requirements in
addition to these grades. Quality grad es can be found where applicable on
the tire sidewall between tread shoulder and maximum section width.
For example: Treadwear 200 Traction AA Temperature A
■Tr e a d w e a r
The treadwear grade is a comparative rati ng based on the wear rate of the tire
when tested under controlled conditions on a specified government test
course.
For example, a tire graded 150 would wear one and a half (1 - 1 /2) times as well on
the government course as a tire graded 100.
The relative performance of tires depends upon the actual conditions of their use.
Performance may differ significantly from the norm due to variations in driving
habits, service practices and differences in road characteristics and climate.
■Tr a c t i o n A A , A , B , C
The traction grades, from highest to lowest, are AA, A, B and C, and they rep-
resent the tire’s ability to stop on we t pavement as measured under controlled
conditions on specified government te st surfaces of asphalt and concrete.
A tire marked C may have poor traction performance.
Warning: The traction grade assigned to this tire is based on braking (straight
ahead) traction tests and does not include cornering (turning) traction.
Uniform Tire Quality Grading

572
GX460_OM_OM60K80U_(U)8-1. Specifications
■Temperature A, B, C
The temperature grades are A (the highes
t), B, and C, representing the tire’s
resistance to the generation of heat and its ability to dissipate heat when
tested under controlled conditions on a specified indoor laboratory test
wheel.
Sustained high temperature can cause the material of the tire to degenerate and
reduce tire life, and excessive temperature can lead to sudden tire failure.
Grade C corresponds to a level of perfor mance which all passenger car tires must
meet under the Federal Motor Vehicle Safety Standard No. 109.
Grades B and A represent higher levels of performance on the laboratory test
wheel than the minimum required by law.
Warning: The temperature grades of a tire assume that it is properly inflated and
not overloaded.
Excessive speed, underinflation, or excessiv e loading, either separately or in com-
bination, can cause heat buildup and possible tire failure.

580
GX460_OM_OM60K80U_(U)8-2. Customization
■Smart access system with push-button start and wireless remote control
(
P. 92, 99)
FunctionDefault settingCustomized
setting
Operation buzzer volumeLevel 7Off—OOLevel 1 to 6
Operation signal (buzzer)OnOff——O
Operation signal
(emergency flashers)OnOff—OO
Time elapsed before the
automatic door lock
function is activated if a
door is not opened after
being unlocked
60 seconds
Off
—OO30 seconds
120 seconds
Open door warning buzzer
(when locking the vehicle)OnOff——O
123

GX460_OM_OM60K80U_(U)
5878-2. Customization
8
Vehicle specifications
■Intuitive parking assist* (P. 2 3 4 )
*: If equipped
■In the following situations, customize mode will automatically be turned off.
●A warning message appears after the cu stomize mode screen is displayed.
●The engine switch is turned to OFF.
●The vehicle begins to move while the customize mode screen is displayed.
FunctionDefault settingCustomized
setting
Buzzer volumeLevel 5Level 1 to 5—OO
Display settingAll sensors displayedDisplay off—OO
Detection distance of the
front center sensorFarNear—OO
Detection distance of the
rear center sensorFarNear—OO
123
CAUTION
■During customization
As the engine needs to be running during customization, ensure that the vehicle is
parked in a place with adequate ventilation. In a closed area such as a garage, exhaust
gases including harmful carbon monoxide (CO) may collect and enter the vehicle. This
may lead to death or a serious health hazard.
NOTICE
■During customization
To prevent battery discharge, ensure that the engine is running while customizing fea-
tures.

606What to do if... (Troubleshooting)
GX460_OM_OM60K80U_(U)
●It is locked automatically to prevent theft of the vehicle. ( P. 1 8 3 )
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be operated
if the window lock switch is pressed. ( P. 1 4 2 )
●The auto power off function will be oper ated if the vehicle is left in ACCES-
SORY or IGNITION ON mode (the engine is not running) for a period of
time. ( P. 1 8 3 )
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts?
( P. 5 0 9 )
●The parking brake indicator is on
Is the parking brake released? ( P. 1 9 1 )
Depending on the situation, other type s of warning buzzer may also sound.
( P. 5 0 7 , 5 1 4 )
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( P. 6 8 )
To stop the alarm, turn the engine switch to IGNITION ON mode or start the
engine. The steering wheel cannot be turned after the engine is stopped
The windows do not open or close by operating the power window
switches
The engine switch is turned off automatically
A warning buzzer sounds during driving
An alarm is activated and the horn sounds

607What to do if... (Troubleshooting)
GX460_OM_OM60K80U_(U)
●Is the electronic key left inside the vehicle or the moon roof opened?
Check the message on the multi-information display. (P. 5 1 4 )
●When a warning light turns on or a warning message is displayed, refer to
P. 5 0 7 , 5 1 4 .
●Stop the vehicle in a safe place and replace the flat tire with the spare tire.
( P. 5 2 7 )
●Try the procedure for when the vehicle becomes stuck in mud, dirt, or snow.
(P. 551)
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed
When a problem has occurred
If you have a flat tire
The vehicle becomes stuck