2010 Lexus GX460 four wheel drive

328
2-4. Using other driving systems
GX460_CANADA (OM60F29U)
■Operating tips
The system will operate when the shift lever is in a position other than P, however to
make effective use of the system it is recommended that the shift lever be shifted to
2 or 1 range of S mode.
■If the four-wheel drive control switch is in H4
The system does not operate.
■When the downhill assist control system is operated continuously
This may cause the brake actuator to overheat. In this case, the downhill assist con-
trol system will stop operating, a buzzer will sound and the DAC indicator will start
flashing, and the TRAC OFF will be shown on the multi-information display. Refrain
from using the system until the DAC indicator stays on and the message goes off.
(The vehicle can be driven normally during this time.)
■Sounds and vibrations caused by the DAC
●A sound may be heard from the engine compartment when the engine is
started or just after the vehicle begins to move. This sound does not indicate that
a malfunction has occurred in DAC.
●Either of the following conditions may occur when the DAC is operating. None
of these are indicators that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
■System malfunction
●The DAC indicator does not come on when the “ENGINE START STOP”
switch is turned to IGNITION ON mode.
●The “DAC” indicator does not come on when the “DAC” switch is pressed.
●The slip indicator comes on.
In the above cases, have your vehicle checked by your Lexus dealer.
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361
2-5. Driving information
2
When driving
GX460_CANADA (OM60F29U)
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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5
When trouble arises
679
5-1. Essential information
GX460_CANADA (OM60F29U)
■Before emergency towingThe “ENGINE START STOP” switch must be in the ACCESSORY mode
(engine off) or IGNITION ON mode (engine running).
Put the four-wheel drive control switch in H4. (The center differential is
unlocked.)
Put the vehicle height in the N mode and press height control switch to
turn off the rear height control air suspension.
Shift the shift lever in N.
Release the parking brake.
CAUTION
■Caution while towing
●Use extreme caution when towing the vehicle.
Avoid sudden starts or erratic driving maneuvers which place excessive stress on
the emergency towing eyelets and the cables or chains. Always use caution for
the surroundings and other vehicles while towing.
●Do not turn the “ENGINE START STOP” switch off.
Doing so will lock the steering wheel an d prevent operation, possibly causing an
accident and resulting in death or serious injury.
●If the engine is not running, the power assist for the brakes and steering will not
function, making steering and braking more difficult.
STEP1
STEP2
STEP3
STEP4
STEP5
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5
When trouble arises
689
5-2. Steps to take in an emergency
GX460_CANADA (OM60F29U)
*: If equipped
Warning lightWarning light/Details
(Flashing)
Automatic High Beam indicator light*
Indicates a malfunction in the automatic high beam system.
(→ P. 2 2 6 )
(Flashing)
“LDA” indicator light*
Indicates a malfunction in the lane departure alert.
(→ P. 2 6 8 )
(Flashing)
Cruise control indicator light*
Indicates a malfunction in the cruise control system.
(→ P. 242, 246)
(Flashing)
Radar cruise control indicator light*
Indicates a malfunction in the Dynamic radar cruise control
system. ( →P. 2 4 6 )
Kinetic dynamic suspension system warning light
Malfunction in the kinetic dynamic suspension system.
(Flashing)
Multi-terrain Select indicator light*
Indicates a malfunction in the Multi-terrain Select system.
(→ P. 2 9 0 )
Low speed four-wheel drive indicator light
Indicates a malfunction in the four-wheel drive system if the
light continues flashing. ( →P. 3 1 7 )
Center differential lock indicator light
Indicates a malfunction in the four-wheel drive system if the
light continues flashing. ( →P. 3 1 7 )
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810
GX460_CANADA (OM60F29U)
Abbreviation list
Abbreviation/Acronym list
ABBREVIATIONSMEANING
4WDFour Wheel Drive
ABSAnti-Lock Brake System
AFSAdaptive Front-lighting System
AI-SHIFTArtificial Intelligence Shift control
ALRAutomatic Locking Retractor
AV SAdaptive Variable Suspension System
CRSChild Restraint System
DACDownhill Assist Control system
DISPDisplay
ECUElectronic Control Unit
EDREvent Data Recorder
EFIElectric Fuel Injection
ELREmergency Locking Retractor
GAWRGross Axle Weight Ratings
GCWRGross Combination Weight Rating
GPSGlobal Positioning System
GVWRGross Vehicle Weight Rating
HIHigh
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815
Alphabetical index
GX460_CANADA (OM60F29U)
Emergency flashersSwitch ...................................................... 674
Engine Accessory mode ................................. 179
Compartment .................................... 608
Engine switch ........................................ 179
Hood ....................................................... 607
How to start the engine.................... 179
Identification number....................... 753
If the engine will not start ................734
Ignition switch........................................ 179
Overheating..........................................744
Engine compartment cover............. 609
Engine coolant Capacity..................................................757
Checking .................................................615
Preparing and checking before winter...................................... 361
Engine coolant temperature gauge ....................................................... 195
Engine immobilizer system ..................114
Engine oil Capacity................................................. 755
Checking .................................................610
Preparing and checking before winter...................................... 361
Engine oil maintenance data ............. 612
Engine switch ........................................... 179
Engine switch light .................................. 511
Event data recorder ............................ 683 Floor mats ................................................556
Fluid
Brake ......................................................... 618
Power steering ................................... 620
Washer ...................................................626
Fog lights
Replacing light bulbs ....................... 664
Switch....................................................... 233
Wattage.................................................. 763
Footwell light .............................................511
Four-wheel drive system .....................317
Front passenger occupant
classification system .......................... 140
Front passenger’s seat belt
reminder light......................................690
Front seats
Adjustment ............................................... 64
Driving position memory .................. 79
Front side marker light Replacing light bulbs ....................... 665
Wattage.................................................. 763
Front turn signal lights
Replacing light bulbs ....................... 666
Switch.........................................................192
Wattage.................................................. 763
Fuel
Capacity ................................................. 754
Fuel gauge.............................................. 195
Fuel pump shut off system............ 682
Gas station information ................. 828
Information ............................................ 764
Refueling.................................................. 109
Fuel door ................................................... 109
Fuel filler door ......................................... 109
Fuel pump shut off system .................682
Fuses .......................................................... 645F
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824
What to do if...
GX460_CANADA (OM60F29U)
■Warning lights
P. 6 9 1
or
P. 6 8 6P. 6 8 9
P. 6 8 8
or
P. 6 8 8P. 6 9 1
P. 6 8 8P. 6 8 8
P. 6 9 0P. 6 8 9
P. 6 8 8P. 6 8 9
P. 6 9 0P. 6 8 9
P. 6 8 7P. 6 8 9
P. 6 8 9
or
P. 6 8 7P. 6 8 9
P. 6 9 0P. 6 8 9
P. 6 9 0
Brake system warning lightTire pressure warning light
Kinetic dynamic suspension
system warning light
ABS warning light“PCS” warning light
Master warning light
Slip indicator light“AFS OFF” indicator light
Low fuel level warning lightAutomatic High Beam
indicator light
SRS warning light“LDA” indicator light
Open door warning lightCruise control indicator
light
Charging system warning
lightRadar cruise control
indicator light
Malfunction indicator lampMulti-terrain Select
indicator light
Low speed four-wheel drive
indicator light
Driver’s seat belt reminder
lightCenter differential lock
indicator light
Front passenger’s seat belt
reminder light
GX460_CANADA.book Page 824 Thursday, February 4, 2010 11:54 AM