2021 TOYOTA HILUX engine

3524-5. Using the driving support systems
HILUX_OM_OM0K513E_(EE)
O When the engine automatically restarts while stopped by the Stop & Start
system
“Preparing to
Operate”
• The vehicle is being driven in a high altitude
area.
• The brake booster vacuum is low.
 When the brake booster vacuum reaches a
predetermined level, the system will be
enabled.
“For Climate
Control”
Vehicles with automatic air conditioning system:
• The air conditioning system is being used
when the ambient temperature is high or low.
 If the difference between the set tempera-
ture and cabin temperature is small, the
system will be enabled.
• is on.
MessageDetails/Actions
MessageDetails/Actions
“Preparing to
Operate”
The brake pedal has been depressed further or
pumped.
 The system will be enabled after the
engine runs and the brake booster vacuum
reaches a predetermined level.
“For Climate
Control”
Vehicles with automatic air conditioning system:
• The air conditioning system has been turned
on or is being used.
• has been turned on.
“Battery
Charging”
The battery charge may be low.
 The engine is restarted to prioritize battery
charging. Operating the engine for a short
while allows the system to recover.

3534-5. Using the driving support systems
4
Driving
HILUX_OM_OM0K513E_(EE)
Q When the buzzer sounds (vehicles with automatic transmission)
If the driver’s door is opened when the engine is stopped by the Stop & Start
system and the shift lever is in D, a buzzer will sound and the Stop & Start
system indicator will flash. To stop the buzzer, close the driver’s door.
Q The Stop & Start system protection function
O When the volume of the audio system is excessively high, sound output
from the audio system may suddenly be cut off in order to reduce battery
consumption. To prevent the audio system from being cut off, keep the vol-
ume of audio system at a moderate level. If the audio system has been cut
off, turn the engine switch to the “LOCK” position*1 or off*2, wait for 3 sec-
onds or more and then turn it to the “ACC” position*1 or ACCESSORY
mode*2 or the “ON” position*1 or IGNITION ON mode*2 to re-enable the
audio system.
O The audio system may not be activated if the battery terminals are discon-
nected and then reconnected. If this occurs, turn the engine switch to the
“LOCK” position*1 or off*2 and then repeat the following operation twice to
activate the audio system normally.
• Turn the engine switch to the “ON” position*1 or IGNITION ON mode*2
and then to the “LOCK” position*1 or off*2.
*1: Vehicles without smart entry & start system
*2: Vehicles with smart entry & start system
Q Replacing the battery
 P. 607
Q If the Stop & Start cancel indicator flashes continuously
The system may be malfunctioning. Have the vehicle inspected by any autho-
rized Toyota retailer or Toyota authorized repairer, or any reliable repairer.
Q If “Stop & Start System Malfunction Visit Your Dealer” is displayed on
the multi-information display
The system may be malfunctioning. Have the vehicle inspected by any autho-
rized Toyota retailer or Toyota authorized repairer, or any reliable repairer.

3544-5. Using the driving support systems
HILUX_OM_OM0K513E_(EE)
WARNING
QWhen the Stop & Start system is operating
Make sure to disable the Stop & Start system while the vehicle is in a poorly
ventilated area.
If not disabled, the engine may be automatically restarted unexpectedly,
causing exhaust gases to collect and enter the vehicle, possibly resulting in
death or a serious health hazard.
O Do not leave the vehicle while the engine is stopped by the Stop & Start
system (while the Stop & Start indicator is on).
An accident may occur due to the automatic engine start function.
O Depress the brake pedal and apply the parking brake when necessary,
while the engine is stopped by the Stop & Start system (while the Stop &
Start indicator is on).
Q Off-road driving precaution
When driving off-road, such as driving through water, press the Stop & Start
cancel switch to disable the Stop & Start system. Failure to do so may
cause the engine to be unable to restart.
NOTICE
Q To ensure the system operates correctly
If any of the following situations occur, the Stop & Start system may not
operate correctly. Have your vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
O While the driver’s seat belt is fastened, the driver’s and front passenger’s
seat belt reminder light flashes.
O Even though the driver’s seat belt is not fastened, the driver’s and front
passenger’s seat belt reminder light does not illuminate.
O Even though the driver’s door is closed, the open door warning light is illu-
minated or the interior light is illuminated when the interior light switch is in
the door position.
O Even though the driver’s door is open, the open door warning light does
not illuminate or the interior light does not illuminate when the interior light
switch is in the door position.
Q If the engine stalls (vehicles with manual transmission)
If the Stop & Start system is enabled and the clutch pedal is depressed
quickly, the engine may restart.

3574-5. Using the driving support systems
4
Driving
HILUX_OM_OM0K513E_(EE)
If the vehicle gets stuck in mud, dirt or snow, the TRC/A-TRC systems
may reduce power from the engine to the wheels. Pressing to
turn the system off may make it easier for you to rock the vehicle in
order to free it.
Vehicles without AUTO LSD system (without multi-information dis-
play)
To turn the TRC/A-TRC systems
off, quickly press and release
.
The “TRC OFF” indicator light will
come on.
Press again to turn the system
back on.
Vehicles without AUTO LSD system (with multi-information display)
To turn the TRC/A-TRC systems
off, quickly press and release
.
“TRC turned off” will be shown on
the multi-information display.
Press again to turn the system
back on.
Disabling the TRC/A-TRC systems

3594-5. Using the driving support systems
4
Driving
HILUX_OM_OM0K513E_(EE)
QTurning off TRC, A-TRC, VSC and Trailer Sway Control systems
Vehicles without multi-information display
To turn the TRC, A-TRC, VSC and Trailer Sway Control systems off, press
and hold for more than 3 seconds while the vehicle is stopped.
The “TRC OFF” indicator light and VSC OFF indicator light will come on.*
Press again to turn the system back on.
Vehicles with multi-information display
To turn the TRC, A-TRC, VSC and Trailer Sway Control systems off, press
and hold for more than 3 seconds while the vehicle is stopped.
The VSC OFF indicator light will come on and the “TRC turned off” will be
shown on the multi-information display.*
Press again to turn the system back on.
*: On vehicles with pre-collision system, pre-collision brake assist and pre-
collision braking will also be disabled. The PCS warning light will come on
and the message will be shown on the multi-information display. ( P. 283)
Q When “TRC OFF” indicator light comes on or the message is displayed
on the multi-information display sh owing that TRC/A-TRC has been dis-
abled even if has not been pressed
TRC, A-TRC and downhill assist control is temporary deactivated. If the indi-
cator light continues to remain on or the information continues to show, con-
tact any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer.
Q Sounds and vibrations caused by the ABS, brake assist, VSC, Trailer
Sway Control, TRC, A-TRC and the hill-start assist control systems
O A sound may be heard from the engine compartment when the brake pedal
is depressed repeatedly, when the engine is started or just after the vehicle
begins to move. This sound does not indicate that a malfunction has
occurred in any of these systems.
O Any of the following conditions may occur when the above systems are
operating. None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard also after the vehicle comes to a stop.
• The brake pedal may pulsate slightly after the ABS is activated.
• The brake pedal may move down slightly after the ABS is activated.

3604-5. Using the driving support systems
HILUX_OM_OM0K513E_(EE)
Q Automatic reactivation of TRC, A-TRC, VSC and Trailer Sway Control
systems
After turning the TRC, A-TRC, VSC and Trailer Sway Control systems off, the
systems will be automatically re-enabled in the following situations:
O When the engine switch is turned to the “LOCK” position (vehicles without
smart entry & start system) or off (vehicles with smart entry & start system).
O If only the TRC/A-TRC system is turned off (P. 357), the TRC/A-TRC will
turn on when vehicle speed increases.
If the TRC, A-TRC, VSC and Trailer Sway Control systems are turned off
( P. 359), automatic re-enabling will not occur when vehicle speed
increases.
Q Operating conditions of the hill-start assist control
When the following four conditions are me t, the hill-start assist control will
operate:
O Vehicles with automatic transmission: The shift lever is in a position other
than P or N (when starting off forward/backward on an upward incline)
Vehicles with manual transmission: The shift lever is in a position other than
R when starting off forward on an upward incline, or the shift lever is in R
when starting off backward on an upward incline.
O The vehicle is stopped
O The accelerator pedal is not depressed
O The parking brake is not engaged
Q Automatic system cancelation of the hill-start assist control
The hill-start assist control will turn off in any of the following situations:
O Vehicles with automatic transmission: The shift lever is shifted to P or N
Vehicles with manual transmission: The shift lever is shifted to R when start-
ing off forward on an upward incline, or the shift lever is shifted to other than
R when starting off backward on an upward incline.
O The accelerator pedal is depressed
O The parking brake is engaged
O 2 seconds at maximum elapsed after the brake pedal is released

3654-5. Using the driving support systems
4
Driving
HILUX_OM_OM0K513E_(EE)
QOperating tips (vehicles with automatic transmission)
The system will operate when the shift lever is in a position other than P, how-
ever to make effective use of the system it is recommended to select a lower
shift range.
Q The system will not operate when
O The transfer mode is in H2.
O The rear differential is locked. (if equipped)
Q If the downhill assist control system indicator flashes
O In the following situations, the indicator flashes and the system will not oper-
ate:
• The transfer mode is not in L4 or H4.
• The rear differential is locked. (if equipped)
• The shift lever is in P. (vehicles with automatic transmission)
• The accelerator or brake pedal is depressed.
• The vehicle speed exceeds approximately 30 km/h (18 mph).
• The brake system overheats.
O In the following situations, the indicator flashes to alert the driver, but the
system will operate:
• The shift lever is in N. (vehicles with automatic transmission)
• The clutch pedal is depressed. (vehicles with manual transmission)
• The “DAC” switch is turned off while the system is operating.
The system will gradually ceases operat ion. The indicator will flash during
operation, and then go off when the system is fully off.
Q When the downhill assist control system is operated continuously
This may cause the brake actuator to overheat. In this case, the downhill
assist control system will stop operating, a buzzer will sound and the downhill
assist control system indicator will start flashing, and “TRC turned off” will be
shown on the multi-information display. Refrain from using the system until
the downhill assist control system indicator stays on and the message goes
off. (The vehicle can be driven normally during this time.)
Q Sounds and vibrations caused by the downhill assist control system
O A sound may be heard from the engine compartment when the engine is
started or just after the vehicle begins to move. This sound does not indicate
that a malfunction has occurred in downhill assist control system.
O Either of the following conditions may occur when the downhill assist control
system is operating. None of these are indicators that a malfunction has
occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.

3664-5. Using the driving support systems
HILUX_OM_OM0K513E_(EE)
Q System malfunction
In the following cases, have your vehicle checked by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
O The downhill assist control system indicator does not come on when the
engine switch is turned to the “ON” position (vehicles without smart entry &
start system) or IGNITION ON mode (vehicles with smart entry & start sys-
tem).
O The downhill assist control system indicator does not come on when the
“DAC” switch is pressed.
O The slip indicator comes on.
WARNING
QWhen using downhill assist control system
O Do not rely overmuch on the downhill assist control system. This function
does not extend the vehicle’s performance limitations. Always thoroughly
check the road conditions, and drive safely.
O Vehicles with manual transmission: Drive in a low gear. Driving in a high
gear when using downhill assist control system may cause the engine to
stall, which may lose the brake effectiveness and lock the tires, resulting in
an accident.
O Vehicles with manual transmission: On a steep slope, use the engine brak-
ing efficiently. If the vehicle is driven in N or with the clutch pedal
depressed on a steep slope, the load on the brake increases and con-
trolling the vehicle speed may be impossible, resulting in an accident.
Q The system may not operate on the following surfaces, which may lead
to an accident causing death or serious injury
O Slippery surfaces such as wet or muddy roads
O Icy surface
O Unpaved roads