2019 TOYOTA HILUX engine

3764-5. Using the driving support systems
HILUX_OM_OM0K375E_(EE)
■Locking the rear differential
The following systems do not operate w hen the rear differential is locked.
It is normal operation for the ABS warning light, VSC OFF indicator (if
equipped) and “TRC OFF” indicator (if equipped) to be on or for “TRC
TURNED OFF”/“TRC turned off” to be displayed on the multi-information dis-
play (if equipped) at this time.
•ABS
• Brake assist (if equipped)
• VSC (if equipped)
• TRC/A-TRC (if equipped)
• Trailer Sway Control (if equipped)
• Hill-start assist control (if equipped)
• Downhill assist control (if equipped)
■ Unlocking the rear differential
If the rear differential lock indicator still flashes even after unlocking the rear
differential, check the safety of the surrounding area and slightly turn the
steering wheel in either direction while the vehicle is in motion.
■ Automatic system cancelation of the rear differential lock system
The rear differential lock is also unlocked in any of the following situations:
● The front-wheel drive control switch is turned to H2 or H4 (4WD models)
● The engine switch is turned to the “ACC” or “LOCK” position (vehicles with-
out smart entry & start system) or A CCESSORY or off (vehicles with smart
entry & start system)
■ After unlocking the rear differential
Check that the indicator goes off.
WARNING
■ To avoid an accident
Failure to observe the following precautions may result in an accident.
● Do not use the rear differential lock system except when wheel spinning
occurs in a ditch or on a slippery or rugged surface. Large steering effort
and careful cornering control will be required.
● Do not lock the rear differential until the wheels have stopped spinning.
Otherwise, the vehicle may move in an unexpected direction when the dif-
ferential lock is engaged, resulting in an accident. This may also lead to
possible damage to rear differential lock component parts.
● Do not drive over 8 km/h (5 mph) when the differential is locked.
● Do not keep driving with the rear differential lock switch on.

377
4
4-5. Using the driving support systems
Driving
HILUX_OM_OM0K375E_(EE)
Stop & Start system (Smart Stop)
■Stopping the engine
Vehicles with automatic
transmission
While driving with the shift lever
in D or S, depress the brake
pedal, and stop the vehicle.
The Stop & Start indicator will
come on.
Vehicles with manual trans-
mission
Stop the vehicle with the clutch pedal fully depressed, shift the shift
lever to N, and release the clutch pedal.
The Stop & Start indicator will come on.
■Restarting the engine
Vehicles with automatic transmission
Release the brake pedal.
The Stop & Start indicator will go off.
Vehicles with manual transmission
Check that the shift lever is in N and depress the clutch pedal.
The Stop & Start indicator will go off.
: If equipped
The Stop & Start system stops and restarts the engine according
to the brake pedal operation (automatic transmission) or clutch
pedal operation (manual transmission) for stopping and starting
the vehicle.
Stop & Start system operation

3784-5. Using the driving support systems
HILUX_OM_OM0K375E_(EE)
Press the Stop & Start cancel
switch to disable the Stop & Start
system.
The Stop & Start cancel indicator
will come on.
Pressing the switch again will
enable the Stop & Start system and
the Stop & Start cancel indicator
will turn off.
■Automatic reactivation of the Stop & Start system
Even if the Stop & Start system is disabled by the Stop & Start can-
cel switch, it will be automatically re-enabled once the engine
switch is turned to the “LOCK” position (vehicles without smart
entry & start system) or off (vehicles with smart entry & start sys-
tem), and then the engine is started.
■If the Stop & Start cancel switch is pressed while the vehicle is
stopped
● When the engine is stopped by the Stop & Start system, pressing
the Stop & Start cancel switch will restart the engine.
From the next time the vehicle is stopped (after Stop & Start sys-
tem has been turned off), the engine will not be stopped.
● With the Stop & Start system disabled, pressing the Stop & Start
cancel switch will re-enable the system but not stop the engine.
From the next time the vehicle is stopped (after Stop & Start sys-
tem has been turned on), the engine will be stopped.
If the engine is stopped by the Stop & Start system when the vehicle is
on an incline, brake force is temporarily maintained to prevent rolling
backwards until the engine is restarted and drive force is generated.
When drive force is generated, the maintained brake force is automat-
ically canceled.
● This function operates on flat surfaces as well as steep incline.
● Sound may be generated by the brakes, but this is not a malfunc-
tion.
● The brake pedal response may change and vibration may occur,
but these are not malfunctions.
Disabling the Stop & Start system
Hill-start assist control

3794-5. Using the driving support systems
4
Driving
HILUX_OM_OM0K375E_(EE)
■Operating conditions
● The Stop & Start system is operational when all of the following conditions
are met:
• Vehicles with automatic transmission: The brake pedal is being
depressed firmly
• Vehicles with manual transmission: The clutch pedal is not being
depressed.
• The engine is adequately warmed up.
• The outside temperature is -5 C (23 F) or higher
• Vehicles with automatic transmission: The shift lever is in D or S, or P
after driving in D or S.
• Vehicles with manual transmission: The shift lever is in N.
• Vehicles with automatic air conditioning system: is off.
• The hood is closed. ( P. 380)
• The driver’s seat belt is fastened.
• The driver’s door is closed.
• The accelerator pedal is not being depressed.
● In the following situations, the engine may not be stopped by the Stop &
Start system. This is not a malfunction of the Stop & Start system.
• The air conditioning system is being used when the ambient temperature
is high or low.
• The battery is undergoing a periodic recharge.
• The battery is not sufficiently charged, such as if the vehicle has been
parked for a long time and the battery charge has decreased, the electric
load is large, the battery temperature is excessively low or the battery has
deteriorated.
• The brake booster vacuum is low.
• The vehicle is stopped on a steep incline.
• The steering wheel is being operated
• Due to traffic or other circumstances the vehicle is being stopped repeat-
edly.
• The vehicle is being driven in a high altitude area.
• Engine coolant temperature or tr ansmission fluid temperature is
extremely low or high.
• The battery fluid temperature is extremely low or high.
• For a while after the battery terminals have been disconnected and
reconnected.
• For a while after the battery has been replaced.
• The front-wheel drive control switch is in the L4 position or the rear differ-
ential is locked.

3804-5. Using the driving support systems
HILUX_OM_OM0K375E_(EE)
● In the following situations, the engine will automatically restart if the engine
is stopped by the Stop & Start system. (To enable stopping the engine by
Stop & Start system, drive the vehicle.)
• The air conditioning system is turned on.
• Vehicles with automatic air conditioning system: is turned on.
• The steering wheel is being operated.
• Vehicles with automatic transmission: The shift lever is shifted to a posi-
tion other than D, S or P.
• Vehicles with manual transmission: The shift lever is shifted to a position
other than N
• The driver’s seat belt is unfastened.
• The driver’s door is opened.
• The accelerator pedal is depressed.
• The Stop & Start cancel switch is pressed.
• The vehicle starts to roll on an incline.
Vehicles with automatic transmission: The engine may be stopped by Stop &
Start system automatically without driving the vehicle if the idling stop time is
set to “Long”. ( P. 382)
● In the following situations, the engine may automatically restart if the engine
is stopped by the Stop & Start system. (To enable stopping the engine by
Stop & Start system, drive the vehicle.)
• The brake pedal is pumped or strongly depressed.
• The air conditioning system is being used.
• The battery is not sufficiently charged.
Vehicles with automatic transmission: The engine may be stopped by Stop &
Start system automatically without driving the vehicle if the idling stop time is
set to “Long”. ( P. 382)
■ Hood
● If the hood is opened while the engine is stopped by the Stop & Start sys-
tem, the engine will stall and will not be able to be restarted by the automatic
engine start function. In this case, restart the engine using the normal
engine starting procedure. ( P. 266, 269)
● Even if the hood is closed after the engine is started with the hood open, the
Stop & Start system will not operate. Close the hood, turn the engine switch to
the “LOCK” position (vehicles without smart entry & start system) or off (vehi-
cles with smart entry & start system), wait 30 seconds or more, and then start
the engine.

3814-5. Using the driving support systems
4
Driving
HILUX_OM_OM0K375E_(EE)
■ When to use the Stop & Start system
● When stopping the vehicle for a longer period of time, stop the engine com-
pletely.
● When the system cannot operate, is canceled, or is malfunctioning, warning
messages and a warning buzzer are used to inform the driver. ( P. 383)
● If the engine switch is pressed when the engine is stopped by the Stop &
Start system, the engine will stall and will not be able to be restarted by the
automatic engine start function. In this case, restart the engine using the
normal engine starting procedure. ( P. 266, 269)
● When the engine is restarted by the Stop & Start system, the power outlets
may be temporarily unusable, but this is not a malfunction.
● Installation and removal of electrical components and wireless devices may
affect the Stop & Start system. Contact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer for details.
■ If the windshield is fogged up while the engine is stopped by the Stop &
Start system
Vehicles with manual air conditioning system:
Restart the engine by pressing the Stop & Start cancel switch, and then set
the air outlet selection dial to . ( P. 485)
Vehicles with automatic air conditioning system:
Turn on. (The engine will start due to the automatic engine start func-
tion.) ( P. 494)
If the windshield fogs up frequently, press the Stop & Start cancel switch to
disable the system.
■ Air conditioning system operation while the engine is stopped by the
Stop & Start system
● If the air conditioning system is being used in automatic mode, the fan
speed may be reduced or the fan may be stopped while the engine is
stopped by the Stop & Start system in order to reduce changes in the cabin
temperature.
● To ensure air conditioning system performance when the vehicle is stopped,
disable the Stop & Start system by pressing the Stop & Start cancel switch.

3824-5. Using the driving support systems
HILUX_OM_OM0K375E_(EE)
■ If an odor comes from the air conditioning system while the engine is
stopped by the Stop & Start system
Vehicles with manual air conditioning system:
If the idling stop time is set to “Long”, change the setting to “Normal”. If an
odor occurs even when “Normal” is selected, press the Stop & Start cancel
switch to deactivate the Stop & Start system.
Vehicles with automatic air conditioning system:
Press the Stop & Start cancel switch to deactivate the Stop & Start system.
■ Changing the idling stop time with the air conditioning system on
The length of time the Stop & Start system will operate when the air condition-
ing system is on can be changed by performing the following operation. (The
length of time the Stop & Start system will operate when the air conditioning
system is off cannot be changed.)
Use the meter control switches to select while the vehicle is stopped
and press , and select and press .
Select “Normal” or “Long”, and then press .
■ The Stop & Start system protection function
● When an excessively loud sound is being projected by the audio system,
the audio system may be automatically cut off in order to reduce battery
consumption. If this occurs, turn the engine switch to the “LOCK” position
(vehicles without smart entry & start sy stem) or off (vehicles with smart entry
& start system), wait for 3 seconds or longer and then turn it to the “ACC” or
“ON” position (vehicles without smart entry & start system), or ACCES-
SORY mode or IGNITION ON mode (vehicles with smart entry & start sys-
tem) to re-enable the audio system.
● The audio system may not be activated when the battery terminals are dis-
connected and then reconnected. If this occurs, turn the engine switch to
the “LOCK” position (vehicles without smart entry & start system) or off
(vehicles with smart entry & start system), and then repeat the following
operation twice to activate the audio system normally.
• Turn the engine switch to the “ON” position (vehicles without smart entry
& start system), or IGNITION ON mode (vehicles with smart entry & start
system), and then to the “LOCK” position (vehicles without smart entry &
start system) or off (vehicles with smart entry & start system).
■ Replacing the battery
 P. 642
1
2

3834-5. Using the driving support systems
4
Driving
HILUX_OM_OM0K375E_(EE)
■ Displaying the Stop & Start system status
Operation status of the Stop & Start system can be displayed on the
(Drive information) screen of multi-information display. ( P. 144)
The display of “After Reset” can be reset.
● To reset the display, press of the meter control switches, press “<” or “>”
to select “Reset”, and then press and hold .
● To stop the reset procedure, press .
■ Multi-information display messages
If the following situations, and a message may be displayed on the
multi-information display.
● When the engine cannot be stopped by the Stop & Start system
Smart Stop
Displays the current engine stop time. Also, the
engine stop time when t he air conditioning sys-
tem is on can be adjusted using the meter con-
trol switches. ( P. 382)
After Start
Displays the cumulative time that the engine is
stopped by the Stop & Start system from when
the engine is started until the engine is stopped.
After Reset
Displays the cumulative time that the engine is
stopped by the Stop & Start system from the
previous reset until the system is reset again.
MessageDetails/Actions
“Depress brake
firmly to activate”
The brake pedal is not depressed enough.
 If the brake pedal is depressed further,
the system will operate.
“For climate con-
trol”
Vehicles with automatic air conditioning sys-
tem:
• The air conditioning system is being used
when the ambient temperature is high or
low.
 If the difference between the set tem-
perature and cabin temperature is
small, the system will be enabled.
• is on.