2015 LEXUS LX570 engine

8245-1. Essential information
LX570_OM_OM60L96U_(U) If you think something is wrong If you notice any of the following sy mptoms, 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 gaug e needle continually points
higher than normal
● Engine oil pressure gauge continually points lower than normal.
● Voltmeter continually points higher or lower 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 rough
● 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, spongy feeling, pedal almost touches
the floor

5
When trouble arises
8255-1. Essential information
LX570_OM_OM60L96U_(U) Fuel pump shut off system Follow the procedure below to resta rt the engine after the system is acti-
vated.
Turn the “ENGINE START STOP ” switch to ACCESSORY mode
or OFF.
Restart the engine. NOTICE■
Before starting the engine
Inspect the ground under the vehicle.
If you find that fuel has leaked on to th e ground, the fuel system has been damaged
and is in need of repair. Do not restart the engine.To minimize the risk of fuel leakage wh en the engine stalls or when an air-
bag inflates upon collision, the fuel pu mp shut off system stops the supply of
fuel to the engine. STEP 1
STEP 2

5
When trouble arises
8275-2. Steps to take in an emergency
LX570_OM_OM60L96U_(U) Have the vehicle inspected immediately.
Failing to investigate the ca use of the following warn ings may lead to the
system operating abnormally and possi bly 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. 845)

5
When trouble arises
8315-2. Steps to take in an emergency
LX570_OM_OM60L96U_(U) * 1
: Open door warning buzzer:
The open door warning buzzer sounds to alert one or more of the doors is not
fully closed (with the vehicle having reached a speed of 3 mph [5 km/h]).
* 2
: Driver’s seat belt buzzer:
The driver’s seat belt buzzer sounds to alert the driver that his or her seat belt
is not fastened. Once the engine switch is turned to IGNITION ON mode,
the buzzer sounds for 6 seconds. If the vehicle reaches a speed of 12 mph
(20 km/h), the buzzer sounds once. If th e seat belt is still unfastened after 30
seconds, the buzzer will so und intermittently for 10 seconds. Then, if the seat
belt is still unfastened, the buzzer w ill sound in a different tone for 20 more
seconds.
Front passenger’s seat belt buzzer:
The front passenger’s seat belt buzzer sounds to alert the front passenger that
his or her seat belt is not fastened. The buzzer sounds once if the vehicle
reaches a speed of 12 mph (20 km/h). If the seat belt is still unfastened after 30
seconds, the buzzer will so und intermittently for 10 seconds. Then, if the seat
belt is still unfastened, the buzzer w ill sound in a different tone for 20 more
seconds. Master warning light
A buzzer sounds and the
warning light comes on or
flashes to indicate that the
master warning system has
detected a malfunction.  P. 837Warning light Warning light/Details Correction procedure

8325-2. Steps to take in an emergency
LX570_OM_OM60L96U_(U) ■
If the malfunction indicator lamp comes on while driving
First check the following: ●
Is the fuel empty?
If it is, fill the fuel tank immediately. ●
Is the fuel tank cap loose?
If it is, tighten it securely.
The malfunction indicator lamp will go off after taking several driving trips.
If the malfunction indicator lamp does not go off even after several trips, contact
your Lexus dealer as soon as possible. ■
If the low speed four-wheel drive indicato r light or the center differential lock
indicator light blinks
Take the specified steps. (  P. 335)
If the brake system warning light or the malfunction indicator light also comes on, or
the low speed four-wheel drive indicator light or the center differential lock indica-
tor light continues to blink after taking th e specified steps, there may be a malfunc-
tion in the engine, the brake system or the four-wheel drive system. In this case, you
may not be able to transfer between “H4” and “L4” modes, and the center differen-
tial lock may not be able to be locked or unlocked. Have the vehicle inspected by
your Lexus dealer, immediately. ■
Front passenger detection sensor and passenger seat belt reminder●
If luggage is placed on the front pass enger seat, the front passenger detection
sensor may cause the warning light to flash, even if a passenger is not sitting in
the seat. ●
If a cushion is placed on the seat, the sensor may not detect a passenger, and
the warning light may not operate properly.

5
When trouble arises
8335-2. Steps to take in an emergency
LX570_OM_OM60L96U_(U) ■
SRS warning light
This warning light system monitors the following: ●
The airbag sensor assembly ●
Front impact sensors ●
Side impact sensors (rear) ●
Side impact sensors (front door) ●
Safing sensor (rear) ●
The driver’s seat belt buckle switch ●
The driver’s seat position sensor ●
Front passenger’s seat belt buckle switch ●
The airbags ●
The interconnecting wiring and power sources ●
The front passenger occupa nt classification system●
“AIR BAG ON” and “AIR BAG OFF” indicator lights●
Seat belt pretensioners and force limiters ●
The “RSCA OFF” indicator light■
Changing the engine oil
Make sure to rese t oil change system■
When the tire pressure warning light comes on
Check the tire inflation pressure and adju st to the appropriate level. Pushing the
tire pressure warning reset sw itch does not turn off the tire pressure warning light.■
The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such as natural
air leaks or tire inflation pressure change s caused by temperature. In this case,
adjusting the tire inflation pressure will turn off the warning light (after a few min-
utes).

5
When trouble arises
8355-2. Steps to take in an emergency
LX570_OM_OM60L96U_(U) ■
If the tire pressure warning light freque ntly comes on after blinking for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1 minute
when the “ENGINE START STOP” switch is turned to IGNITION ON mode, have
it checked by Lexus dealer.
CAUTION■
If the tire pressure warning light comes on
Be sure to observe the following precauti ons. Failure to do so could cause loss of
vehicle control and result in death or serious injury. ●
Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pres-
sure immediately. ●
If the tire pressure warning light come s on even after tire inflation pressure
adjustment, it is probab le that you have a flat tire. Chec k the tires. If the tire is flat,
change to the spare tire and have the flat tire repaired by the nearest Lexus
dealer. ●
Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could
lose control of the steering wheel or the brakes.■
If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.

5
When trouble arises
8435-2. Steps to take in an emergency
LX570_OM_OM60L96U_(U) (Flashes) Indicates that the moon
roof is not fully closed
(with the “ENGINE
START STOP” switch off,
and the driver’s door
open) Close the moon roof.
Indicates that engine oil
level is low
A buzzer also sounds. Check the level of engine
oil, and add if necessary.
This message may
appear if the vehicle is
stopped on a slope.
Move the vehicle to a
level surface and check
to see if the message dis-
appears.
(U.S.A.)
(Canada)
(Flashes) Indicates, if the vehicle
reaches a speed of 3 mph
(5 km/h), that the parking
brake is still engaged. Release the parking
brake.Warning message Details Correction procedure