2010 Lexus GX460 engine overheat

TABLE OF CONTENTSIndex
6
GX460_CANADA (OM60F29U)
5-1. Essential informationEmergency flashers..................... 674
If your vehicle needs to be towed .................................. 675
If you think something is wrong .............................................. 681
Fuel pump shut off system ....... 682
Event data recorder ................... 683
5-2. Steps to take in an emergency If a warning light turns on or a warning buzzer sounds... ...... 686
If a warning message is displayed ...................................... 698
If you have a flat tire..................... 720
If the engine will not start .......... 734
If the shift lever cannot be shifted from P .............................. 736
If you lose your keys .................... 737
If the electronic key does not operate properly ............... 738
If the vehicle battery is discharged .................................... 741
If your vehicle overheats ........... 744
If the vehicle becomes stuck................................................ 747
If your vehicle has to be stopped
in an emergency ........................ 749 6-1. Specifications
Maintenance data (fuel, oil level, etc.)..................... 752
Fuel information ............................ 764
Tire information............................. 767
6-2. Customization Customizable features............... 783
6-3. Initialization Items to initialize .......................... 803
Reporting safety defects for U.S. owners.......................... 806
Seat belt instructions for Canadian owners
(in French) ................................... 807
Abbreviation list......................... 810
Alphabetical index .................... 812
What to do if... ........................... 822
5When trouble arises6Vehicle specifications
7For owners
Index
GX460_CANADA.book Page 6 Thursday, February 4, 2010 11:54 AM

172
2-1. Driving procedures
GX460_CANADA (OM60F29U)
CAUTION
■When driving the vehicle
●If the smell of exhaust is noticed inside the vehicle, open the windows and check
that the back door is closed.
Large amounts of exhaust in the vehicle can cause driver drowsiness and an acci-
dent, resulting in death or a serious health hazard. Have the vehicle inspected by
your Lexus dealer immediately.
●Do not under any circumstances shift the shift lever to P while the vehicle is mov-
ing.
Doing so can cause significant damage to the driveline and may result in a loss of
vehicle control.
●Do not under any circumstances shift the shift lever to R while the vehicle is mov-
ing forward.
Doing so can cause significant damage to the driveline and may result in a loss of
vehicle control.
●Do not shift the shift lever to N while the vehicle is moving.
Doing so may cause insufficient engine braking, resulting in an accident.
●Do not turn the engine off while driving.
The power steering and brake booster will not operate properly if the engine is
not running.
●Use engine braking (downshift) to maintain a safe speed when driving down a
steep hill.
Using the brakes continuously may cause the brakes to overheat and lose effec-
tiveness. (→P. 1 8 7 )
●Do not adjust the positions of the steering wheel, the seat, or the inside or outside
rear view mirrors while driving.
Doing so may result in a loss of vehicle control that can cause accidents, resulting
in death or serious injury.
GX460_CANADA.book Page 172 Thursday, February 4, 2010 11:54 AM

174
2-1. Driving procedures
GX460_CANADA (OM60F29U)
CAUTION
■If you hear a squealing or scraping noise (brake pad wear limit indicators)
Have your Lexus dealer check and replace the brake pads as soon as possible.
Rotor damage may result if the pads are not replaced when needed.
It is dangerous to drive the vehicle when the wear limits of the brake pads and/or
those of the brake discs are exceeded.
■When the vehicle is stopped
●Do not race the engine.
If the vehicle is in any gear other than P or N, the vehicle may accelerate suddenly
and unexpectedly, causing an accident.
●Do not leave the vehicle with the engine running for a long time.
If such a situation cannot be avoided, park the vehicle in an open space and
check that exhaust fumes do not enter the vehicle interior.
●In order to prevent accidents due to the vehicle rolling away, always keep
depressing the brake pedal while the engine is running, and apply the parking
brake as necessary.
●If the vehicle is stopped on an incline, in order to prevent accidents caused by the
vehicle rolling forward or backward, always depress the brake pedal and securely
apply the parking brake as needed.
●Avoid revving or racing the engine. Running the engine at high speed while the
vehicle is stopped may cause the exhaust system to overheat, which could result
in a fire if combustible material is nearby.
GX460_CANADA.book Page 174 Thursday, February 4, 2010 11:54 AM

176
2-1. Driving procedures
GX460_CANADA (OM60F29U)
CAUTION
■Exhaust gases
Exhaust gases include harmful carbon monoxide (CO), which is colorless and
odorless. Inhaling exhaust gases may lead to death or a serious health hazard.
●If the vehicle is in a poorly ventilated area, stop the engine. In a closed area, such
as a garage, exhaust gases may collect and enter the vehicle. This may lead to
death or a serious health hazard.
●The exhaust system should be checked occasionally. 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. Failure to do so
may allow exhaust gases to enter the vehicle, resulting in death or a serious health
hazard.
■When taking a nap in the vehicle
Always turn the engine off.
Otherwise, if you accidentally move the shift lever or depress the accelerator pedal,
this could cause an accident or fire due to engine overheating. Additionally, if the
vehicle is parked in a poorly ventilated area, exhaust gases may collect and enter
the vehicle, leading to death or a serious health hazard.
GX460_CANADA.book Page 176 Thursday, February 4, 2010 11:54 AM

184
2-1. Driving procedures
GX460_CANADA (OM60F29U)
■Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, the motor may be suspended
if the engine is turned on and off repeatedly in a short period of time. In this case,
refrain from operating the engine. After about 10 seconds, the steering lock motor
will resume functioning.
■When the “ENGINE START STOP” switch indicator flashes in amber
The system may be malfunctioning. Have the vehicle inspected by your Lexus
dealer immediately.
■If the electronic key battery is depleted
→ P. 6 4 2
CAUTION
■When starting the engine
Always start the engine while sitting in the driver’s seat. Do not depress the acceler-
ator pedal while starting the engine under any circumstances.
Doing so may cause an accident resulting in death or serious injury.
■Caution while driving
If the vehicle begins to slide due to engine failure or other circumstances, do not
lock or open the doors until the vehicle reaches a safe and complete stop. Activa-
tion of the steering lock in this circumstance may lead to an accident, resulting in
death or serious injury.
■Stopping the engine in an emergency
If you want to stop the engine in an emergency while driving the vehicle, press and
hold the “ENGINE START STOP” switch for more than 3 seconds. However, do
not touch the “ENGINE START STOP” switch while driving unless in an emer-
gency. If the engine stops while driving, this could lead to an unexpected accident.
GX460_CANADA.book Page 184 Thursday, February 4, 2010 11:54 AM

197
2-2. Instrument cluster
2
When driving
GX460_CANADA (OM60F29U)
■The meters and display illuminate when
The “ENGINE START STOP” switch is in IGNITION ON mode.
■Instrument cluster brightness adjustment
The instrument cluster brightness levels when the tail lights are on and off can be
adjusted.
■The brightness of the instrument cluster lights
When the tail lights are on, the brightness will change. However, when the sur-
roundings are bright (daytime, etc.) turning on the tail lights will not change the
instrument cluster brightness.
In addition, the brightness of the instrument cluster lights is automatically adjusted
based on the light sensor detecting how bright the surroundings are.
■When disconnecting and reconnecting battery terminals
The trip meter data will be reset.
If the trip meter was displayed last, the ODO screen will be displayed after reset-
ting.
■Customization
Setting of sensitivity of the ambient light sensor used for dimming the meter lights
can be changed. (Customizable features →P. 7 8 3 )
NOTICE
■To prevent damage to the engine and its components
●Do not let the indicator needle of the tachometer enter the red zone, which indi-
cates the maximum engine speed.
●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, and check
the engine after it has cooled completely. ( →P. 74 4 )
GX460_CANADA.book Page 197 Thursday, February 4, 2010 11:54 AM

240
2-3. Operating the lights and windshield wipers
GX460_CANADA (OM60F29U)
■The rear window wiper and washer can be operated when
●The “ENGINE START STOP” switch is in IGNITION ON mode.
●The glass hatch is closed.
■If no windshield washer fluid sprays
Check that the washer nozzles are not blocked if there is washer fluid in the wind-
shield washer fluid reservoir.
NOTICE
■When the rear window is dry
Do not use the wiper, as it may damage the rear window.
■When the washer fluid tank is empty
Do not operate the switch continually as the washer fluid pump may overheat.
GX460_CANADA.book Page 240 Thursday, February 4, 2010 11:54 AM

241
2-3. Operating the lights and windshield wipers
2
When driving
GX460_CANADA (OM60F29U)
Headlight cleaner switch∗
∗: If equipped
■The headlight cleaners can be operated when
The “ENGINE START STOP” switch is in IGNITION ON mode and the headlight
switch is turned on.
■Windshield washer linked operation
When the windshield washer is operated with the “ENGINE START STOP” switch
in IGNITION ON mode and the headlights on, the headlight cleaners will operate
once. ( →P. 2 3 5 )
NOTICE
■When the washer fluid tank is empty
Do not press the switch continually as the washer fluid pump may overheat.
Washer fluid can be sprayed on the headlights.
Press the switch to clean the
headlights.
GX460_CANADA.book Page 241 Thursday, February 4, 2010 11:54 AM