2021 TOYOTA TACOMA check engine light

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6-1. Maintenance and careCleaning and protecting the vehicle exterior .......... 396
Cleaning and protecting the vehicle interior ........... 400
6-2. Maintenance Maintenance requirements ................... 403
General maintenance ........ 405
Emission inspection and maintenance (I/M)
programs ......................... 408
6-3. Do-it-yourself maintenance Do-it-yourself service precautions ..................... 409
Hood.................................. 411
Engine compartment ......... 413
Tires .................................. 425
Tire inflation pressure........ 436
Wheels .............................. 439
Air conditioning filter .......... 442
Wireless remote control/ electronic key battery ...... 445
Checking and replacing fuses ............................... 448
Light bulbs ......................... 451 7-1. Essential information
Emergency flashers ........... 466
If your vehicle has to be stopped in
an emergency.................. 467
If the vehicle is trapped in rising water .................. 469
7-2. Steps to take in an emergency
If your vehicle needs to be towed .......................... 470
If you think something is wrong............................... 474
Fuel pump shut off system ............................. 475
If a warning light turns on or a warning buzzer
sounds ............................. 476
If a warning message is displayed ......................... 483
If you have a flat tire .......... 505
If the engine will not start ................................. 520
If the electronic key does not operate properly
(vehicles with a smart
key system) .................... 522
If the vehicle battery is discharged ....................... 524
If your vehicle overheats.... 528
If the vehicle becomes stuck ................................ 530
6Maintenance and care7When trouble arises

17Pictorial index
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 232
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 232
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 538
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 425
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 545
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 323
Checking/rotation/tire pressure warning system
*3 . . . . . . . . . P. 425
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 505
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 411
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 411
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 539
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 528
Camera
*2
Headlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 219
Fog lights
*3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 228
Front turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 217
Parking lights (bulb type)
*3/
daytime running lig hts (bulb type)
*3. . . . . . . . . . . . . . . . . . P. 219
Parking lights (LED type)
*3/
daytime running lights (LED type)
*3 . . . . . . . . . . . . . . . . . . P. 219
Rear turn signal/tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 217
Stop/tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 219
Hill-start assist control
*3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 3 18
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 219
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . P. 210, 215
Side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 219
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Light bulbs of the exter ior lights for driving
(Replacing method: P. 451, Watts: P. 547)
*1: Vehicles with a smart key system
*2: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”
*3: If equipped
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711-1. For safe use
1
For safety and security
Exhaust gas precautions
Harmful substance to the human body is included in exhaust
gases if inhale.
WARNING
Exhaust gases include 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
● Vehicles with a sliding type back window: Keep the back window closed.
● If you smell exhaust gases in the vehicle even when the back window
(vehicles with a sliding type) is closed, open the windows and have the
vehicle inspected at your Toyota dealer as soon as possible.
● Toyota does not recommend occupying the rear cargo area when it is fitted
with a slide-in camper, camper shell or other type cover while the engine is
running. This caution applies to both driving and stopped, or p arked situa-
tions with the engine running. Particular care should be taken to prevent
exhaust gases from entering camper bodies, trailers or other enclosures
on or around your vehicle. If exhaust fumes are detected, open all win-
dows and thoroughly ventilate the area.
■ 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.

942. Instrument cluster
*1: These lights turn on when the engine switch is turned to the “ON” position(vehicles without a smart key system) or IGNITION ON mode (vehi cles
with a smart key system) to indicate that a system check is being per-
formed. 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 com e on, or if
the lights do not turn off. Have the vehicle inspected by your Toyota dealer
for details.
*1, 3, 5PCS warning light
( P. 478)*4
(U.S.A.)
ABS warning light
(P. 485)
*2, 4, 5
(Yellow)
LDA indicator ( P. 478)
*4
(Canada)
ABS warning light
(P. 485)
*4
(U.S.A.)
Brake system warning
light ( P. 483)
*2, 4
Slip indicator ( P. 485)
*4
(Canada)
Brake system warning
light (P. 483)
*4, 5Tire pressure warning
light (P. 485)
*4Automatic transmission
fluid temperature warn-
ing light ( P. 484)*4Brake Override System/
Drive-Start Control warn-
ing light
(P. 486, 487, 497)
*4High engine coolant tem-
perature warning light
(P. 484)*4Low engine oil level
warning light ( P. 486)
*4Low engine oil pressure
warning light ( P. 484)*4
(Canada
only)
Low windshield washer
fluid warning light
(P. 487)
*4
Charging system warn-
ing light ( P. 484)

962. Instrument cluster
*1: Vehicles with an automatic transmission.
*2: These lights turn on when the engine switch is turned to the “ON” position(vehicles without a smart key system) or IGNITION ON mode (vehi cles
with a smart key system) to indicate that a system check is being per-
formed. 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 com e on, or if
the lights do not turn off. Have the vehicle inspected by your Toyota dealer
for details.
*3: The light flashes to indicate that the system is operating.
*4: This light illuminates on the multi-information display.
*5: When the outside temperature is approximately 37°F (3°C) or lo wer, the
indicator will flash for 10 times, then comes on.
*4, 9
(Green)
LDA indicator ( P. 261)
*4, 9
Crawl Control indicator
(P. 312)
(4WD models)
Low speed four-wheel
drive indicator ( P. 297)
*4, 5
Low outside tempera-
ture indicator (P. 98)
(U.S.A.)
Parking brake indicator
(P. 218)
*6, 7, 9BSM outside rear view
mirror indicator
(P. 289)
(Canada)
Parking brake indicator
(P. 218)
*8, 9
Security indicator
(P. 78, 88)
*4, 9
Multi-terrain Select indi-
cator (P. 308)
“AIR BAG ON/OFF” indicators
(P. 48)*2, 8

1363-2. Opening, closing and locking the doors
●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. 562)
■ 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 electron ic 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. 522)
● Starting the engine: P. 522
■ Customization
Settings (e. g. smart key system) can be changed.
(Customizable features: P. 562)
■ 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. 119, 522)
● Starting the engine and changing engine switch modes: P. 522
● Stopping the engine: P. 205

1643-5. Opening, closing the windows and moon roof
■When the moon roof d oes not close normally
Perform the following procedure:
● If the moon roof closes but then re-opens slightly
Stop the vehicle.
Press and hold the “CLOSE” (sliding close) switch.
*1
The moon roof will close, reopen and pause for approximately 10 sec-
onds.
*2 Then it will close again, tilt up and pause for approximately 1 sec-
ond. Finally, it will tilt down, open and close.
Check to make sure that the moon roof is completely closed and then
release the switch.
● If the moon roof tilts down but then tilts back up
Stop the vehicle.
Press and hold the “UP” (tilt up) switch
*1 until the moon roof moves into
the tilt up position and stops.
Release the “UP” (tilt up) switch once and then press and hold the “UP”
(tilt up) switch again.
*1
The moon roof will pause for approximately 10 seconds in the tilt up posi-
tion.
*2 Then it will adjust slightly and pause for approximately 1 sec ond.
Finally, it will tilt down, open and close.
Check to make sure that the moon roof is completely closed 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
“CLOSE” (sliding close) or “UP” (tilt up) switch, and the moon roof will tilt
up and pause for approximately 1 second. Then it will tilt down , open and
close. Check to make sure that the moon roof is completely closed 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
An alarm will sound and message will be shown on the multi-info rmation dis-
play when the driver’s door is opened with the moon roof not fu lly closed and
the engine switch off.
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1724-1. Before driving
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When starting the vehicle (vehic les with an automatic transmission)
Always keep your foot on the brake pedal while stopped with the engine
running. This prevents the vehicle from creeping.
■ When driving the vehicle
● Do not drive if you are unfamiliar with the location of the brake and accel-
erator pedals to avoid depressing the wrong pedal.
• Accidentally depressing the accelerator pedal instead of the b rake
pedal will result in sudden acceleration that may lead to an accident.
• When backing up, you may twist your body around, leading to di fficulty
in operating the pedals. Make sure to operate the pedals proper ly.
• Make sure to keep a correct driving posture even when moving t he
vehicle only slightly. This allows you to depress the brake and accelera-
tor pedals properly.
• Depress the brake pedal using your right foot. Depressing the brake
pedal using your left foot may delay response in an emergency, result-
ing in an accident.
● Do not drive the vehicle over or stop the vehicle near flammable materials.
The exhaust system and exhaust gases can be extremely hot. Thes e hot
parts may cause a fire if there is any flammable material nearby.
● During normal driving, do not turn off the engine. Turning the engine off
while driving will not cause loss of steering or braking contro l, but the
power assist to these systems will be lost. This will make it m ore difficult to
steer and brake, so you should pull over and stop the vehicle a s soon as it
is safe to do so.
However, in the event of an emergency, such as if it becomes im possible
to stop the vehicle in the normal way: P. 467
● Use engine braking (downshift) to maintain a safe speed when driving
down a steep hill.
Using the brakes continuously may cause the brakes to overheat and lose
effectiveness. ( P. 210, 215)
● Do not adjust the positions of the steering wheel, the seat, or the inside or
outside rear view mirrors while driving.
Doing so may result in a loss of vehicle control.
● Always check that all passengers’ arms, heads or other parts of their body
are not outside the vehicle.