engine LEXUS LX570 2015 Workshop Manual

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)

1842-1. Driving procedures
LX570_OM_OM60L96U_(U) Changing shift range in “D” position
■ Shift lever
If the shift lever is shifted into the “D” position, the appropriate gear is
automatically selected, as determ ined by the driving conditions.
■ Paddle shift switches (if equipped)
While the shift lever is in the “D” position, engine braking force can be
temporarily switched to.
By firstly operating the “-” paddle sh ift switch, the “-” and “+” switches
can be used to freely switch the shift range.
Changing the shift range allows res triction of the highest gear, pre-
venting unnecessary upshifting and enabling the level of engine brak-
ing force to be selected.
Downshifting
Upshifting To return to normal D position
driving, the “+” paddle shift switch
must be held down for a period of
time.

1852-1. Driving procedures
2
When driving
LX570_OM_OM60L96U_(U) ■ Shift ranges and their functions
● Automatically selecting gears betw een 1 and 6 according to vehicle
speed and driving conditions. But, the gear is limited according to
selected shift range.
● You can choose from 6 levels of engine braking force.
● A lower shift range will provide grea ter engine braking force than a
higher shift range, and the engine speed will also increase.

1872-1. Driving procedures
2
When driving
LX570_OM_OM60L96U_(U) ■ Shift ranges and their functions
● Automatically selecting gears betw een 1 and 6 according to vehicle
speed and driving conditions. But, the gear is limited according to
selected shift range.
● You can choose from 6 levels of engine braking force.
● A lower shift range will provide grea ter engine braking force than a
higher shift range, and the engine speed will also increase. ■
Paddle shift switches (if equipped) ●
When the “-” paddle shift switch is operated in the “D” position, a shift range will
be automatically selected. The highest gear of the first shift range will be one
gear lower than the gear in use during normal “D” position driving. ●
Automatic deactivation of shift range selection in the “D” position
Shift range selection in the “D” position w ill be deactivated in the following situa-
tions:
• When the vehicle comes to a stop
• If the accelerator pedal is depressed for longer than a certain period of time
in one shift range■
“S” mode ●
When the shift range is “5” or lower, holding the shift lever or paddle shift switch
toward “+” sets the shift range to “6”. ●
To prevent excessive engine speed, a function was adopted that automatically
selects a higher shift range before the engine speed becomes too high. ●
To protect the automatic transmission, a function is adopted that automatically
selects a higher shift range when the fluid temperature is high.■
Downshifting restrict ions warning buzzer
To help ensure safety and driving perf ormance, downshifting operation may some-
times be restricted. In some circumstances, downsh ifting may not be possible even
when the shift lever or a paddle shift swit ch (if equipped) is operated. (The warning
buzzer will sound twice.)

1882-1. Driving procedures
LX570_OM_OM60L96U_(U) ■
When driving with the cruise contro l or radar cruise control activated
Even when performing the following acti ons with the intent of enabling engine
braking, engine braking will not activate because cruise control or radar cruise
control will not be canceled. ●
While driving in “D” position (vehicles with paddle shift switches) or “S” mode,
downshifting to “5” or “4”. (  P. 232, 236)●
When switching the driving mode to powe r mode while driving in “D” position.
(  P. 183)■
Second start mode automatic deactivation
Second start mode is automatically deactivated if the engine is turned off after driv-
ing in second start mode. ■
If the shift lever cannot be shifted from “P”
 P. 870■
If the “S” indicator does not come on ev en after shifting the shift lever to “S”
This may indicate a malfunction in the automatic transmission system. Have the
vehicle inspected by your Lexus dealer immediately.
(In this situation, the vehicle will operate as if the shift lever is in “D”.) ■
AI-SHIFT
The AI-SHIFT automatically shifts the gear to the suitable position according to the
driver performance and driving conditions.
The AI-SHIFT automatically operates when the shift lever is in the “D” position.
(Shifting the shift lever to the “S ” position cancels the function.)