run flat Lexus GX460 2010 Owner's Manual

600
4-2. Maintenance
GX460_CANADA (OM60F29U)
Vehicle exterior
ItemsCheck points
Doors• Do the doors operate smoothly?
Engine hood• Does the engine hood lock system work properly?
Fluid leaks
• There should not be any signs of fluid leakage after the vehicle has
been parked.
Ti r e
• Is the tire inflation pressure cor-rect?
• The tires should not be damaged or
excessively worn.
• Have the tires been rotated according to the maintenance
schedule?
• The wheel nuts should not be loose.
CAUTION
■If the engine is running
Turn off the engine and ensure that there is adequate ventilation before performing
maintenance checks.
GX460_CANADA.book Page 600 Thursday, February 4, 2010 11:54 AM

5
When trouble arises
675
5-1. Essential information
GX460_CANADA (OM60F29U)
If your vehicle needs to be towed
Before towingThe following may indicate a problem with your transmission. Contact
your Lexus dealer before towing.
● The engine is running but the vehicle will not move.
● The vehicle makes an abnormal sound.
If towing is necessary, we recommend having your vehicle towed by your
Lexus dealer or a commercial towing se rvice, using a lift-type truck or a flat
bed truck.
Use a safety chain system for all towing, and abide by all state/provincial
and local laws.
The wheels and axle on the ground must be in good condition.
If they are damaged, use a towing dolly or flat bed truck.
GX460_CANADA.book Page 675 Thursday, February 4, 2010 11:54 AM

5
When trouble arises
681
5-1. Essential information
GX460_CANADA (OM60F29U)
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably needs
adjustment or repair. Contact your Lexus dealer as soon as possible.
■Visible symptoms
● Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is normal.)
● Flat-looking tires or uneven tire wear
● Engine coolant temperature gauge needle continually points
higher than normal
■ Audible symptoms
● Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the engine
■ Operational symptoms
● Engine missing, stumbling or running roughly
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one side when driving on a level road
● Loss of brake effectiveness, sp ongy feeling, pedal almost touches
the floor
GX460_CANADA.book Page 681 Thursday, February 4, 2010 11:54 AM

5
When trouble arises
731
5-2. Steps to take in an emergency
GX460_CANADA (OM60F29U)
CAUTION
■Using the tire jack
Improper use of the tire jack may lead to death or injuries due to the vehicle sud-
denly falling off the jack.
●Do not use the tire jack for any purpose other than replacing tires or installing and
removing tire chains.
●Only use the tire jack that comes with this vehicle for replacing a flat tire.
Do not use it on other vehicles, and do not use other tire jacks for replacing tires
on this vehicle.
●Always check that the tire jack is securely set to the jack point.
●Be sure to turn off the rear height control air suspension and stop the engine.
●Do not raise the vehicle while someone is in it.
●When raising the vehicle, do not put an object on or under the jack.
●Do not raise the vehicle to a height greater than that required to replace the tire.
●Use a jack stand if it is necessary to get under the vehicle.
●Do not put any part of your body under the vehicle supported by a jack.
●Do not start or run the engine while your vehicle is supported by the jack.
Take particular care when lowering the vehicle to ensure that no one working on or
near the vehicle may be injured.
■Using the jack handle
Tighten all the jack handle bolts securely using a Phillips-head screwdriver, to pre-
vent the extension parts from coming apart unexpectedly.
GX460_CANADA.book Page 731 Thursday, February 4, 2010 11:54 AM

814
Alphabetical index
GX460_CANADA (OM60F29U)
Conversation mirror ...........................534
Cool box...................................................528
Cooling systemEngine overheating .......................... 744
Cornering assist sensors ...................259
Crawl Control........................................323
Cruise control Cruise control ..................................... 242
Dynamic radar crui se control ..... 246
Cup holders ............................................ 522
Curtain shield airbags............................ 121
Customizable features .......................783
Daytime running light system .......... 224
DAC........................................................... 327
Defogger
Rear window........................................404
Side mirror ............................................404
Dimension ................................................ 752
Dinghy towing ....................................... 380
Display Dynamic radar crui se control ..... 246
Multi-information display ........................................ 204, 212
Trip information ........................ 204, 212
Warning message............................ 698
Do-it-yourself maintenance .............602
Door courtesy lights Door courtesy lights............................ 511
Wattage.................................................. 763
Door pocket............................................520
Doors Back door................................................. 54
Power windows..................................... 101
Door lock...........................................48, 51
Rear door child protector ................ 52 Side doors.................................................. 51
Side mirrors.............................................. 97
Downhill assist control system ........ 327
Driver’s seat belt reminder light ..... 690
Driving Correct posture.....................................119
Off-road precautions...................... 348
Procedures............................................. 168
Winter driving tips .............................. 361
Driving position memory...................... 79
Electronic key
If the electronic key does not operate properly............................ 738
Emergency, in case of If the electronic key does not
operate properly............................ 738
If the engine will not start ................734
If the shift lever cannot be shifted from P....................................736
If the vehicle has discharged battery ................................................... 741
If the warning buzzer sounds...... 686
If the warning light turns on..........686
If the warning message is displayed ............................................ 698
If you have a flat tire .........................720
If you lose your keys ......................... 737
If you think something is wrong ....................................................681
If your vehicle becomes stuck ..... 747
If your vehicle has to be stopped in an emergency ..........749
If your vehicle needs to be
towed ................................................... 675
If your vehicle overheats.................744
D
E
GX460_CANADA.book Page 814 Thursday, February 4, 2010 11:54 AM