2014 LEXUS LX570 warning

7694-3. Do-it-yourself maintenance
4
Maintenance and care
LX570_OM_OM60L21U_(U) CAUTION■
Tire pressure warning system operation
The tire pressure warning system may not provide warning immediately if a tire
bursts or if sudden air leakage occurs. ■
When inspecting or replacing tires
Observe the following precautions to prevent accidents.
Failure to do so may cause da mage to parts of the drive tr ain, as well as dangerous
handling characteristics, which may lead to an accident resulting in death or serious
injury. ●
Do not mix tires of different makes, models or tread patterns.
Also, do not mix tires of remarkably different treadwear. ●
Do not use tire sizes other th an those recommended by Lexus.●
Do not mix differently constructed tires (radial, bias-belted or bias-ply tires). ●
Do not mix summer, all season and snow tires. ●
Do not use tires that have been used on another vehicle.
Do not use tires if you do not know how they were used previously. ■
When initializing the tire pressure warning system
Do not push the tire pressure warning reset switch without first adjusting the tire
inflation pressure to the specified level. Otherwise, the tire pressure warning light
may not come on even if the tire inflation pressure is low, or it may come on when
the tire inflation pressure is actually normal.

7704-3. Do-it-yourself maintenance
LX570_OM_OM60L21U_(U) NOTICE■
Repairing or replacing tires, wheels, tire pressure warning valves and transmit-
ters and tire valve caps ●
When removing or fitting the wheels, tires or the tire pressure warning valve and
transmitter, contact your Lexus dealer as the tire pressure warning valve and
transmitter may be damaged if not handled correctly. ●
Make sure to install the tire valve caps. If the tire valve caps are not installed,
water could enter the tire pressure warning valves and the tire pressure warning
valves could be bound. ●
When replacing tire valve caps, do not us e tire valve caps other than those speci-
fied. The cap may become stuck.■
To avoid damage to the tire pressure warning valves and transmitters
When a tire is repaired with liquid seal ants, the tire pressure warning valve and
transmitter may not operate properly. If a liquid sealant is used, contact your Lexus
dealer or other qualified service shop as so on as possible. Make sure to replace the
tire pressure warning valve and transmitter when replacing the tire. (  P. 76 3 )■
Driving on rough roads
Take particular care when driving on roads with loose surfaces or potholes.
These conditions may cause losses in tire inflation pressure, reducing the cushion-
ing ability of the tires. In addition driving on rough roads may cause damage to the
tires themselves, as well as the vehicle’s wheels and body.■
If tire inflation pressures become low while driving
Do not continue driving, or your tires and/or wheels may be ruined.

7764-3. Do-it-yourself maintenance
LX570_OM_OM60L21U_(U) ■
When replacing wheels
The wheels of your Lexus are equipped with tire pressure warning valves and trans-
mitters that allow the tire pressure warning system to provide advanced warning in
the event of a loss in tire inflation pres sure. Whenever wheels are replaced, the tire
pressure warning valves and transmitters must be installed. (  P. 76 3 )
CAUTION■
When replacing wheels ●
Do not use wheels that are a different size from those recommended in the
Owner’s Manual, as this may result in loss of handling control.●
Never use an inner tube in a leaking wheel which is designed for a tubeless tire.
Doing so may result in an accident , causing death or serious injury.■
Use of defective wheels prohibited
Do not use cracked or deformed wheels.
Doing so could cause the tire to leak air during driving, possibly causing an acci-
dent.
NOTICE■
Replacing tire pressure warning valves and transmitters ●
Because tire repair or replacement may affect the tire pressure warning valves
and transmitters, make sure to have tires serviced by your Lexus dealer or other
qualified service shop. In addition, make sure to purchase your tire pressure
warning valves and transmitters at your Lexus dealer. ●
Ensure that only genuine Lexus wheels are used on your vehicle.
Tire pressure warning valves and transmitters may not work properly with non-
genuine wheels.

7964-3. Do-it-yourself maintenance
LX570_OM_OM60L21U_(U) ■ Passenger’s side instrument panel
Fuse Ampere Circuit
1 RSF LH 30 A Third seat adjustment (left)
2 B/DR CLSR RH 30 A Back door closer
3 B/DR CLSR LH 30 A Back door closer
4 RSF RH 30 A Third seat adjustment (right)
5 DOOR DL 15 A No circuit
6 AHC-B 20 A 4-Wheel AHC
7 TEL 5 A Multimedia
8 TOW B K / U P 7. 5 A To w i n g
9 AHC-B No.2 10 A 4-Wheel AHC
10 ECU-IG No.4 5 A VGRS, power back door, rear ECU,
4-Wheel AHC, third seat adjustment,
tire pressure warning system ECU

When trouble arises
5
811
LX570_OM_OM60L21U_(U) 5-1. Essential information
Emergency flashers................ 812
If your vehicle needs to be
towed ....................................... 813
If you think something is
wrong ....................................... 819
Fuel pump shut off
system .................................... 820 5-2. Steps to take in an
emergency
If a warning light turns on
or a warning buzzer
sounds... .................................. 821
If a warning message is
displayed................................ 832
If you have a flat tire............... 849
If the engine will not
start ......................................... 863
If the shift lever cannot be
shifted from “P”.................... 865
If you lose your keys .............. 866
If the electronic key does
not operate properly.......... 867
If the battery is
discharged ............................ 870
If your vehicle overheats ..... 873
If the vehicle becomes
stuck......................................... 876
If your vehicle has to be
stopped in an
emergency ............................ 878

5
When trouble arises
821
LX570_OM_OM60L21U_(U) 5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer sounds...Stop the vehicle immediately. Continui ng to drive the vehicle may be
dangerous.
The following warning in dicates a possible problem in the brake system.
Immediately stop the vehi cle in a safe place and contact your Lexus
dealer.
* : Parking brake engaged warning buzzer:
A buzzer sounds to indicate that the parking brake is still engaged (with the
vehicle having reached a speed of 3 mph [5 km/h]).
Stop the vehicle immediately.
The following warning indicates the po ssibility of damage to the vehicle
that may lead to an ac cident. Immediately stop the vehicle in a safe place
and contact your Lexus dealer. Warning light Warning light/Details
(U.S.A.)
(Canada) Brake system warning light (warning buzzer)
*•Low brake fluid
• Malfunction in the brake system
This light also comes on when the parking brake is not
released. If the light turns off after the parking brake is fully
released the system is operating normally.
Warning light Warning light/Details
Charging system warning light
Indicates a malfunction in the vehicle’s charging system.Calmly perform the following actions if any of the warning lights turn on or
flash. If a light turns on or flashes, bu t then turns off, this does not necessar-
ily indicate a malfunction in the system. However, if this continues to occur,
have the vehicle inspected by your Lexus dealer.

8225-2. Steps to take in an emergency
LX570_OM_OM60L21U_(U) Have the vehicle inspected immediately.
Failing to investigate the cause of the following warnings may lead to the
system operating abnormally and possibly cause an accident. Have the
vehicle inspected by your Lexus dealer, immediately. Warning light Warning light/Details
(U.S.A.)
(Canada) Malfunction indicator lamp
Indicates a malfunction in:
• The emission control system;
• The electronic engine control system;
• The electronic throttle control system; or
• The electronic automatic transmission control system.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system.
(U.S.A.)
(Canada) ABS warning light
Indicates a malfunction in:
•The ABS; or
• The brake assist system.
(Comes on or
flashes) Pre-collision system warning light (if equipped)
Indicates:
• Malfunction in the pre-collision system if the light comes on.
• The system cannot temporarily be used if the light flashes.
(  P. 8 4 0 )

5
When trouble arises
8235-2. Steps to take in an emergency
LX570_OM_OM60L21U_(U) Follow the correction procedures.
After taking the specified steps to co rrect the suspected problem, check
that the warning light turns off. Slip indicator light
Indicates a malfunction in:
• The VSC;
• Trailer sway control;
• The Active TRAC;
• The hill-start assist control system;
• Crawl Control system; or
• Multi-terrain select.
(Flashes) “AFS OFF” indicator light
Indicates a malfunction in the AFS.
Warning light Warning light/Details Correction procedure
Open door warning light
(warning buzzer)
* 1
Indicates that a door is not
fully closed. Check that all doors are
closed.
Low fuel level warning light
Indicates that remaining fuel
is about 4.0 gal. (15.0 L, 3.3
Imp.gal.) or less Refuel the vehicle.Warning light Warning light/Details