Page 487 of 632

LX570_OM_OM60N01U_(U)
4876-3. Do-it-yourself maintenance
6
Maintenance and care
Your Lexus is equipped with a tire pressure warning system that uses tire pres-
sure warning valves and transmitters to detect low tire inflation pressure before
serious problems arise.
●If the tire pressure drops below a predetermined level, the driver is warned by
a screen display and a warning light. ( P. 5 2 6 )
●The tire pressure detected by the
tire pressure warning system can be
displayed on the multi-information
display. (P. 9 1 )
◆Installing tire pressure warning valves and transmitters
When replacing tires or wheels, tire pressure warning valves and transmitters
must also be installed.
When new tire pressure warning valves and transmitters are installed, new ID
codes must be registered in the tire pressure warning computer and the tire
pressure warning system must be initialized. Have tire pressure warning valve
and transmitter ID codes registered by your Lexus dealer. ( P. 4 8 8 )
◆Initializing the tire pressure warning system
■The tire pressure warning system must be initialized in the following circum-
stances:
●When rotating the tires in above situation.
●When the set tire pressure has been changed before towing. ( P. 5 6 9 )
When the tire pressure warning system is initialized, the current tire inflation
pressure is set as the benchmark pressure.
The tire pressure warning system
Page 491 of 632

LX570_OM_OM60N01U_(U)
4916-3. Do-it-yourself maintenance
6
Maintenance and care
●Performance may be affected in the following situations.
• Near a TV tower, electric power plant, gas station, radio station, large display, air- port or other facility th at generates strong radio waves or electrical noise
• When carrying a portable radio, cellular phone, cordless phone or other wireless
communication device
If tire position information is not correctl y displayed due to the radio wave conditions,
the display may be corrected by driving and changing the radio wave conditions.
●When the vehicle is parked, the time taken for the warning to start or go off could be
extended.
●When tire inflation pressure declines rapidly for example when a tire has burst, the
warning may not function.
■The initialization operation
●Make sure to carry out initialization after adjusting the tire inflation pressure.
Also, make sure the tires are cold before carry ing out initialization or tire inflation pres-
sure adjustment.
●If you have accidentally turned the engine swit ch off during initialization, it is not neces-
sary to press the reset switch again as init ialization will restart automatically when the
engine switch has been turned to IG NITION ON mode for the next time.
●If you accidentally press the reset switch when initialization is not necessary, adjust the
tire inflation pressure to the specified level when the tires are co ld, and conduct initial-
ization again.
●While the position of each tire is being de termined and the inflation pressures are not
being displayed on the mu lti-information display, if the in flation pressure of a tire drops,
the tire pressure warning light will come on.
Page 513 of 632

513
LX570_OM_OM60N01U_(U)
7When trouble arises
7-1. Essential informationEmergency flashers ................... 514
If your vehicle has to be stopped in an emergency ..... 515
7-2. Steps to take in an emergency If your vehicle needs to be towed ................................. 516
If you think something is wrong ........................................... 522
Fuel pump shut off system ...... 523
If a warning light turns on or a warning buzzer
sounds.......................................... 524
If a warning message is displayed..................................... 532
If you have a flat tire................... 536
If the engine will not start ........ 547
If the shift lever cannot be shifted from P............................ 549
If the electronic key does not operate properly .............550
If the vehicle battery is discharged ................................. 553
If your vehicle overheats ......... 556
If the vehicle becomes stuck ............................................. 559
Page 516 of 632
516
LX570_OM_OM60N01U_(U)7-2. Steps to take in an emergency
If your vehicle needs to be towed
The following may indicate a problem with your transmission. Contact your
Lexus dealer or commercial towing service before towing.
●The engine is running but the vehicle does not move.
●The vehicle makes an abnormal sound.
If towing is necessary, we recommend having your vehicle towed by your
Lexus dealer or commercial towing se
rvice, using a wheel-lift type truck or
flatbed truck.
Use a safety chain system for all towing, and abide by all state/provincial and
local laws.
If towing your vehicle with a wheel-l ift type truck, use a towing dolly.
( P. 517, 520)
Situations when it is necessary to contact dealers before towing
Page 517 of 632
5177-2. Steps to take in an emergency
LX570_OM_OM60N01U_(U)
7
When trouble arises
Do not tow with a sling-type truck to
prevent body damage.
Towing with a sling-type truck
Towing with a wheel-lift type truck
From the frontFrom the rear
Use a towing dolly under the rear
wheels. Use a towing dolly under the front
wheels.
Page 518 of 632
5187-2. Steps to take in an emergency
LX570_OM_OM60N01U_(U)
If your vehicle is transported by a flat-
bed truck, it should be tied down at the
locations shown in the illustration.
If you use chains or cables to tie down
your vehicle, the angles shaded in black
must be 45.
Do not overly tighten the tie downs or
the vehicle may be damaged.
If a tow truck is not available in an emergency, your vehicle may be temporarily
towed using cables or chains secured to the emergency towing hooks. This
should only be attempted on hard su rfaced roads for at most 50 miles (80 km)
at under 18 mph (30 km/h).
A driver must be in the vehicle to steer and operate the brakes. The vehicle’s
wheels, drive train, axles, steering an d brakes must be in good condition.
Using a flatbed truck
Emergency towing
Page 519 of 632
5197-2. Steps to take in an emergency
LX570_OM_OM60N01U_(U)
7
When trouble arises
Securely attach cables or chains to
the towing hooks.
Take care not to damage the vehicle
body.
Enter the vehicle being towed and start the engine.
If the engine does not start, turn the engine switch to the IGNITION ON
mode.
Shift the four-wheel drive control switch to “H4”. (The center differential is
unlocked.)
Change the vehicle height to N (normal) mode and press the height control
OFF button to end the vehicle height control operation. ( P. 3 0 0 )
Shift the shift lever to N and release the parking brake.
When the shift lever cannot be shifted: P. 5 4 9
■While towing
If the engine is not running, the power assist for the brakes and steering will not function,
making steering and br aking more difficult.
Emergency towing procedure
1
2
3
4
5
Page 520 of 632
5207-2. Steps to take in an emergency
LX570_OM_OM60N01U_(U)
WA R N I N G
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When towing the vehicle
■While towing
●When towing using cables or chains, avoid sudden starts, etc. which place excessive
stress on the towing hooks, cables or chains . The towing hooks, cables or chains may
become damaged, broken debris may hit people and cause serious damage.
●Do not turn the engine switch off.
There is a possibility that the steering wheel is locked and cannot be operated.
Be sure to transport the vehicle with all four
wheels raised off the ground. If the vehicle is
towed with the tires contacting the ground, the
drivetrain or related parts may be damaged,
the vehicle may fly off the truck.