check engine light TOYOTA SEQUOIA 2021 Owners Manual (in English)

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SEQUOIA_OM_USA_OM0C035U6-1. Maintenance and care
Cleaning and protecting the vehicle exterior .......... 398
Cleaning and protecting the vehicle interior ........... 402
6-2. Maintenance Maintenance requirements ................... 405
General maintenance ........ 407
Emission inspection and maintenance (I/M)
programs ......................... 410
6-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 411
Hood.................................. 414
Engine compartment ......... 415
Tires .................................. 426
Tire inflation pressure........ 438
Wheels .............................. 441
Air conditioning filter .......... 444
Electronic key battery ........ 446
Checking and replacing fuses ............................... 448
Light bulbs ......................... 451 7-1. Essential information
Emergency flashers ........... 460
If your vehicle has to be stopped in an
emergency....................... 461
If the vehicle is trapped in rising water .................. 463
7-2. Steps to take in an emergency
If your vehicle needs to be towed .......................... 464
If you think something is wrong............................... 468
Fuel pump shut off system ............................. 469
If a warning light turns on or a warning buzzer
sounds ............................. 470
If a warning message is displayed ......................... 479
If you have a flat tire .......... 491
If the engine will not start ................................. 505
If the electronic key does not operate properly ........ 507
If the vehicle battery is discharged ....................... 509
If your vehicle overheats.... 513
If the vehicle becomes stuck ................................ 516
6Maintenance and care7When trouble arises

17Pictorial index
SEQUOIA_OM_USA_OM0C035UFuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 244
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 244
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 523
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 426
Tire size/inflation pressure . . . . . . . . . . . . . . . . . .
. . . . . . . . . . P. 529
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 334
Checking/rotation/tire pressure warning system . . . . . . . . . . . P. 426
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 491
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 414
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 414
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 524
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 513
Camera
*2
Headlights/parking lights/front side marker lights/
daytime running lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 227
Front turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 225
Fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 236
Stop/tail lights/rear side marker lights . . . . . . . . . . . . . . . . P. 227
Hill-start assist control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 322
Rear turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 225
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 227
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 220
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 227
Light bulbs of the exterior lights for driving
(Replacing method: P. 451, Wattages: P. 530)
*1: If equipped
*2: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”

751-1. For safe use
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For safety and security
SEQUOIA_OM_USA_OM0C035U
Exhaust gas precautions
Harmful substance to the human body is included in exhaust
gases if inhaled.
WARNING
Exhaust gases contain harmful carbon monoxide (CO), which is colorless and
odorless. Observe the following precautions.
Failure to do so may cause exhaust gases to enter the vehicle a nd may lead
to an accident caused by light-headedness, or may lead to death or a serious
health hazard.
■ Important points while driving
● Keep the back door closed.
● If you smell exhaust gases in the vehicle even when the back do or is
closed, open the windows and have the vehicle inspected at your Toyota
dealer as soon as possible.
■ When parking
● If the vehicle is in a poorly ventilated area or a closed area, such as a
garage, stop the engine.
● Do not leave the vehicle with the engine on for a long time.
If such a situation cannot be avoided, park the vehicle in an o pen space
and ensure that exhaust fumes do not enter the vehicle interior .
● Do not leave the engine running in an area with snow build-up, or where it
is snowing. If snowbanks build up around the vehicle while the engine is
running, exhaust gases may collect and enter the vehicle.
■ Exhaust pipe
The exhaust system needs to be checked periodically. If there is a hole or
crack caused by corrosion, damage to a joint or abnormal exhaust noise, be
sure to have the vehicle inspected and repaired by your Toyota dealer.

902. Instrument cluster
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*1: These lights turn on when the engine switch is turned to ON to indicate thata system check is being performed. They will turn off after the engine is
started, or after a few seconds. There may be a malfunction in a system if
the lights do not come on, or do not turn off. Have the vehicle inspected by
your Toyota dealer.
*2: The light illuminates on the multi-information display.
*3: The light comes on to indicate a malfunction.
Low fuel level warning
light ( P. 472)*1
Tire pressure warning
light (P. 472)
*1
Seat belt reminder light
(P. 472)*1
Master warning light
(P. 472)

922. Instrument cluster
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*1: These lights turn on when the engine switch is turned to ON to indicate thata system check is being performed. They will turn off after the engine is
started, or after a few seconds. There may be a malfunction in a system if
the lights do not come on, or do not turn off. Have the vehicle inspected by
your Toyota dealer.
*2: This light illuminates on the multi-information display.
*3: The light flashes to indicate that the system is operating.
*4: In order to confirm operation, the BSM outside rear view mirro r indicators
illuminate in the following situations:
• When the engine switch is turned to ON, the BSM function is en abled on
the screen of the multi-information display.
• When the BSM function is enabled on the screen of the multi-infor- mation display, the engine switch is turned to ON.
If the system is functioning correctly, the BSM outside rear vi ew mirror
indicators will turn off after a few seconds.
If the BSM outside rear view mirror indicators do not illuminat e or do not
turn off, there may be a malfunction in the system.
If this occurs, have the vehicle inspected by your Toyota deale r.
*5: This light illuminates on the center panel.
*6: This light turns on when the system is off.
(if equipped)
High speed four-wheel
drive indicator (P. 3 1 5 )
*1, 5
“AIR BAG ON/OFF” indi-
cators (P. 51)
(if equipped)
Low speed four-wheel
drive indicator ( P. 3 1 5 )
(if equipped)
“TOW/HAUL” indicator
(P. 222)
(if equipped)
Center differential lock
indicator ( P. 315)*2Low outside tempera-
ture indicator ( P. 94)
*1
(if equipped)
“AUTO LSD” indicator
(P. 320, 323)

1333-2. Opening, closing and locking the doors
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Operation of each component
SEQUOIA_OM_USA_OM0C035U●
The lock sensor may not work properly if it comes into contact with ice,
snow, mud, etc. Clean the lock sensor and attempt to operate it again, or
use the lock sensor on the lower part of the door handle.
● If there is another electronic key in the detection area, it ma y take slightly
longer to unlock the doors after the door handle is gripped.
● A sudden handle operation or a handle operation immediately aft er entering
the effective range may prevent the doors from being unlocked. Touch the
door unlock sensor and check that the doors are unlocked before pulling the
door handle again.
● Fingernails may scrape against the door during operation of the door han-
dle. Be careful not to injure fingernails or damage the surface of the door.
■ Note for the unlocking function
●Gripping the door handle when wearing a glove may not unlock th e door.
● A sudden approach to the effective range or door handle may prevent the
doors from being unlocked. In this case, return the door handle to the origi-
nal position and check that the doors unlock before pulling the door handle
again.
● If there is another electronic key in the detection area, it ma y take slightly
longer to unlock the doors after the door handle is gripped.
■ When the vehicle is not driven for extended periods
●To prevent theft of the vehicle, do not leave the electronic ke y within 6 ft.
(2 m) of the vehicle.
● The smart key system can be deactivated in advance. ( P. 546)
■ To operate the system properly
●Make sure to carry the electronic key when operating the system. Do not get
the electronic key too close to the vehicle when operating the system from
the outside of the vehicle.
● Depending on the position and holding condition of the electronic key, the
key may not be detected correctly and the system may not operat e properly.
(The alarm may go off accidentally, or the door lock prevention function may
not operate.)
■ If the smart key system does not operate properly
●Locking and unlocking the doors: Use the mechanical key. ( P. 507)
● Starting the engine: P. 507
■ Customization
Settings (e. g. smart key system) can be changed.
(Customizable features: P. 546)
■ If the smart key system has been d eactivated in a customized setting
● Locking and unlocking the doors:
Use the wireless remote control or mechanical key. ( P. 113, 507)
● Starting the engine and changing engine switch modes: P. 507
● Stopping the engine:  P. 215

1733-5. Opening, closing the windows and moon roof
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Operation of each component
SEQUOIA_OM_USA_OM0C035U■
When the moon roof does not close normally
Perform the following procedure:
●If the moon roof closes but then re-opens slightly
Stop the vehicle.
Press and hold the “SLIDE” switch.
*1
The moon roof will close, reopen and pause for approximately 10 sec-
onds.
*2 Then it will close again, tilt up and stop.
Check to make sure that the moon roof is completely stopped and then
release the switch.
*1: If the switch is released at the incorrect time, the procedure will have to
be performed again from the beginning.
*2: If the switch is released after the above mentioned 10 seconds pause,
automatic operation will be disabled. In that case, press and h old the
“SLIDE” or “TILT” switch, and the moon roof will tilt up and st op. Check to
make sure that the moon roof is completely stopped and then release the
switch.
If the moon roof does not fully close even after performing the above proce-
dure correctly, have the vehicle inspected by your Toyota deale r.
■ Moon roof open reminder function
The buzzer sounds and a message is shown on the multi-informati on display
in the instrument cluster when the engine switch is turned off and the driver’s
door is opened with the moon roof open.
■ Door lock linked moon roof operation
The moon roof can be opened and closed using the key. ( P. 1 0 8 )
■ Customization that can be configured at Toyota dealer
Settings (e.g. key linked operation) can be changed.
(Customizable features P. 546)
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2084-1. Before driving
SEQUOIA_OM_USA_OM0C035U■
Before towing
Check that the following conditions are met:
●Ensure that your vehicle’s tires are properly inflated. ( P. 529)
● Trailer tires are inflated according to the trailer manufacture r’s recommen-
dation.
● All trailer lights work as required by law.
● All lights work each time you connect them.
● The trailer ball is set at the proper height for the coupler on the trailer.
● The trailer is level when it is hitched.
Do not drive if the trailer is not level, and check for imprope r tongue weight,
overloading, worn suspension, or other possible causes.
● The trailer cargo is securely loaded.
● The rear view mirrors conform to all applicable federal, state/provincial or
local regulations. If they do not, install rear view mirrors ap propriate for tow-
ing purposes.
● Depress “TOW/HAUL” button (if equipped)
■ AVS (adaptive variable suspension system) (if equipped)
The suspension can be switched for improvement in drivability. (P. 314)
■ Break-in schedule
If your vehicle is new or equipped with any new power train com ponents
(such as an engine, transmission, differential or wheel bearing ), Toyota rec-
ommends that you do not tow a trailer until the vehicle has bee n driven for
over 500 miles (800 km).
After the vehicle has been driven for over 500 miles (800 km), you can start
towing. However, for the next 500 miles (800 km), drive the veh icle at a speed
of less than 50 mph (80 km/h) when towing a trailer, and avoid full throttle
acceleration.
■ Maintenance
●If you tow a trailer, your vehicle will require more frequent m aintenance due
to the additional load. (See “Scheduled Maintenance Guide” or “ Owner’s
Manual Supplement”.)
● Retighten the fixing bolts of the towing ball and bracket after approximately
600 miles (1000 km) of trailer towing.

2194-2. Driving procedures
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Driving
SEQUOIA_OM_USA_OM0C035U
NOTICE
■To prevent battery discharge
● Do not leave the engine switch in ACC or ON for long periods of time with-
out the engine running.
● If “ACCESSORY” or “IGNITION ON” is displayed on the multi-infor mation
display while the engine is not running, the engine switch is n ot off. Exit the
vehicle after turning the engine switch off.
● Do not stop the engine when the shift lever is in a position ot her than P. If
the engine is stopped in another shift lever position, the engi ne switch will
not be turned off but instead be turned to ACC. If the vehicle is left in ACC,
battery discharge may occur.
■ When starting the engine
● Do not race a cold engine.
● If the engine becomes difficult to start or stalls frequently, have your vehi-
cle checked by your Toyota dealer immediately.
■ Symptoms indicating a malf unction with the engine switch
If the engine switch seems to be operating somewhat differently than usual,
such as the switch sticking slightly, there may be a malfunctio n. Contact
your Toyota dealer immediately.

2254-2. Driving procedures
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Driving
SEQUOIA_OM_USA_OM0C035U
Turn signal lever
The lever will return to its original position after operation.
Right turn
Lane change to the right (move
the lever partway and release
it)
The right hand signals will flash 3
times.
Lane change to the left (move
the lever partway and release
it)
The left hand signals will flash 3
times.
Left turn
■ Turn signals can be operated when
The engine switch is in ON.
■ If the indicator flashes faster than usual
Check that a light bulb in the front or rear turn signal lights has not burned
out.
Operating instructions