2015 LEXUS LX570 engine

1742-1. Driving procedures
LX570_OM_OM60L96U_(U) CAUTION■
Exhaust gases
Exhaust gases include harmful carbon monoxide (CO) that is colorless and odor-
less. Inhaling exhaust gases may lead to death or a serious health hazard.●
If the vehicle is in a poorly ventilated ar ea, stop the engine. In a closed area, such
as a garage, exhaust gases may collect and enter the vehicle. This may lead to
death or a serious health hazard. ●
The exhaust should be checked occasionally. If there is a hole or crack caused by
corrosion, damage to a joint or abnormal ex haust noise, be sure to have the vehi-
cle inspected and repaired by your Lexus dealer. Failure to do so may allow
exhaust gases to enter the vehicle, result ing in death or a serious health hazard.■
When taking a nap in the vehicle
Always turn the engine off.
Otherwise, you may accidentally move the shift lever or depress the accelerator
pedal, which could cause an accident or fire due to abnormal engine overheating.
Additionally, if the vehicle is parked in a poorly ventilated area, exhaust gases may
collect and enter the vehicle, leading to death or a serious health hazard. ■
When braking the vehicle ●
When the brakes are wet, drive more cautiously.
Braking distance increases when the brakes are wet, and may cause one side of
the vehicle to brake differently than the other side. Also the parking brake may
not securely hold the vehicle. ●
If the power brake assist function does not operate, do not follow other vehicles
closely and avoid hills or shar p turns that require braking.
In this case, braking is still possible, but the brake pedal should be depressed
more firmly than usual. Also, th e braking distance will increase.
Have your brakes fixed immediately. ●
Do not pump the brake peda l if the engine stalls.
Each push on the pedal uses up the reserve for the power-assisted brakes. ●
The brake system consists of 2 individual hydraulic systems: If one of the systems
fails, the other will still operate. In this case, the brake pedal should be depressed
more firmly than usual and the braking distance will increase.
Have your brakes fixed immediately.

1762-1. Driving procedures
LX570_OM_OM60L96U_(U) NOTICE■
If you get a flat tire while driving
A flat or damaged tire may cause the following situations. Hold the steering wheel
firmly and gradually press the brak e pedal to slow down the vehicle.●
It may be difficult to control your vehicle. ●
The vehicle will make abnormal sounds.●
The vehicle will behave abnormally.
Replace a flat tire with a new one. (  P. 859)■
When encountering flooded roads
Do not drive on a road that has flooded after heavy rain etc. Doing so may cause
the following serious damage to the vehicle. ●
Engine stalling ●
Short in electrical components ●
Engine damage caused by water immersion
In the event that you drive on a flooded ro ad and the vehicle is flooded, be sure to
have your Lexus dealer check the following. ●
Brake function ●
Changes in quantity and quality of oil an d fluid used for the engine, transmission,
transfer, differentials, etc. ●
Lubricant condition for the propeller shaft, bearings and suspension joints (where
possible) and the function of all joints, bearings, etc.

1772-1. Driving procedures
2
When driving
LX570_OM_OM60L96U_(U) Engine (ignition) switch Performing the following operations when carrying the electronic key on
your person starts the engine or changes “ENGINE START STOP” switch
modes.
■ Starting the engine
Check that the parking brake is set.
Check that the shift lever is set in “P”.
Sit in the driver’s seat and firmly depress the brake pedal. The “ENGINE START STOP” switch indicator turns green.
Press the “ENGINE START
STOP” switch. The engine can be started from
any “ENGINE START STOP”
switch mode.
Continue depressing the brake
pedal until the engine is com-
pletely started. The engine will
crank until it starts or for up to
30 seconds, whichever is less.STEP 1
STEP 2
STEP 3
STEP 4

1782-1. Driving procedures
LX570_OM_OM60L96U_(U) ■ Changing “ENGINE START STOP” switch mode
Modes can be changed by pres sing the “ENGINE START STOP”
switch with the brake pedal release d. (The mode changes each time
the switch is pressed.)
OFF
* Emergency flashers can be
used.
ACCESSORY mode Some electrical components
such as the audio system can be
used.
The “ENGINE START STOP”
switch indicator turns amber.
IGNITION ON mode All electrical components can
be used.
The “ENGINE START STOP”
switch indicator turns amber.
* : If the shift lever is in a position othe r than “P” when turn ing off the engine,
the “ENGINE START STOP” switch will be turned to ACCESSORY
mode, not to OFF.

1792-1. Driving procedures
2
When driving
LX570_OM_OM60L96U_(U) ■
Operation of the “ENG INE START STOP” switch
When operating the “ENGINE START STOP ” switch, one short, firm press is
enough. If the switch is pressed improp erly, the engine may not start or the
“ENGINE START STOP” switch mode may not change. It is not necessary to press
and hold the switch. ■
When the steering lock cannot be released
■
If the engine does not start
The engine immobilizer system may not have been deactivated. (  P. 119)
Contact your Lexus dealer. ■
When the “ENGINE START STOP” switch indicator flashes in amber
The system may be malfunctioning. Have the vehicle inspected by your Lexus
dealer immediately. ■
Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes with the shift
lever in P, the “ENGINE START STOP” switch will automatically turn off. However,
this function cannot entirely prevent battery discharge. Do not leave the vehicle
with the “ENGINE START STOP” switch in ACCESSORY mode for long periods
of time when the engine is not running. ■
Electronic key battery depletion
 P. 42■
When the electronic key battery is discharged
 P. 872■
Conditions affecting operation
 P. 40 The green indicator light on the “ENGINE
START STOP” switch will flash and a mes-
sage will be shown on the multi-information
display. Press the “ENGINE START STOP”
switch again while turning the steering wheel
left and right.

1802-1. Driving procedures
LX570_OM_OM60L96U_(U) ■
Note for the entry function
 P. 43
CAUTION■
When starting the engine
Always start the engine while sitting in th e driver’s seat. Do not depress the acceler-
ator while starting the engi ne under any circumstances.
Doing so may cause an accident resulting in death or serious injury. ■
Stopping the engine in an emergency
If you want to stop the engine in an emergency while driving the vehicle, press and
hold the “ENGINE START STOP” switch fo r more than 2 seconds, or press it
briefly 3 times or more in succession. (  P. 883)
However, do not touch the “ENGINE START STOP” switch while driving except in
an emergency. Turning the engine off while driving will not cause loss of steering or
braking control, but the power assist to these systems will be lost. This will make it
more difficult to steer and brake, so you should pull over and stop the vehicle as
soon as it is safe to do so.
NOTICE■
To prevent battery discharge
Do not leave the “ENGINE START STOP ” switch in ACCESSORY or IGNITION
ON mode for long periods of ti me without the engine running.■
When starting the engine ●
Do not race a cold engine. ●
If the engine becomes difficult to start or stalls frequently, have your vehicle
checked by your Lexus dealer immediately.■
Symptoms indicating a malfunction with the “ENGINE START STOP” switch
If the “ENGINE START STOP” switch seem s to be operating somewhat differently
than usual, such as the swit ch sticking slightly, there may be a malfunction. Contact
your Lexus dealer immediately.

1812-1. Driving procedures
2
When driving
LX570_OM_OM60L96U_(U) Automatic transmission Select a shift position appropriate for the driving conditions.
■ Shifting the shift lever
While the “ENGINE START STOP” switch is in IGNITION ON
mode, depress the brake pedal and move the shift lever.

1822-1. Driving procedures
LX570_OM_OM60L96U_(U) ■ Shift position uses
* 1
: Shifting to the “D” position allows the system to select a gear suitable for
the driving conditions. Setting the shif t lever to the “D” position is recom-
mended for normal driving.
* 2
: If equipped, by selecting shift ranges using paddle shift switches, you can
control engine braking forces.
* 3
: Selecting shift ranges using “S” mode restricts the upper limit of the possi-
ble gear ranges, controls engine br aking forces, and prevents unneces-
sary upshifting. Shift position Function
P Parking the vehicle or starting the engine
R Reversing
N Condition in which the power is not transmitted
D Normal driving
* 1
or temporary shift range selection
driving
* 2
S “S” mode driving
* 3
(  P. 186)