2020 TOYOTA TACOMA check engine

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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........ 434
Wheels .............................. 437
Air conditioning filter .......... 440
Wireless remote control/ electronic key battery ...... 443
Checking and replacing fuses ............................... 446
Light bulbs ......................... 449 7-1. Essential information
Emergency flashers ........... 464
If your vehicle has to be stopped in
an emergency.................. 465
If the vehicle is trapped in rising water .................. 467
7-2. Steps to take in an emergency
If your vehicle needs to be towed .......................... 468
If you think something is wrong............................... 473
Fuel pump shut off system ............................. 474
If a warning light turns on or a warning buzzer
sounds ............................. 475
If a warning message is displayed ......................... 482
If you have a flat tire .......... 504
If the engine will not start ................................. 519
If the electronic key does not operate properly
(vehicles with a smart
key system) .................... 521
If the vehicle battery is discharged ....................... 523
If your vehicle overheats.... 527
If the vehicle becomes stuck ................................ 529
6Maintenance and care7When trouble arises

8
For your infor mation
Please note that this manual applies to all models and all equipment, includ-
ing options. Therefore, you may find some explanations for equi pment not
installed on your vehicle.
All specifications provided in this manual are current at the t ime of printing.
However, because of the Toyota policy of continual product improvement, we
reserve the right to make changes at any time without notice.
Depending on specifications, the vehicle shown in the illustrat ions may differ
from your vehicle in terms of equipment.
Approximately five hours after the engine is turned off, you ma y hear sound
coming from under the vehicle for several minutes. This is the sound of a fuel
evaporation leakage check and it does not indicate a malfunctio n.
A wide variety of non-genuine spare parts and accessories for T oyota vehi-
cles are currently available in the market. You should know tha t Toyota does
not warrant these products and is not responsible for their per formance,
repair, or replacement, or for any damage they may cause to, or adverse
effect they may have on, your Toyota vehicle.
This vehicle should not be modified with non-genuine Toyota pro ducts. Modi-
fication with non-genuine Toyota products could affect its perf ormance, safety
or durability, and may even violate governmental regulations. In addition,
damage or performance problems resulting from the modification may not be
covered under warranty.
Main Owner’s Manual
Noise from under vehicle afte r turning off the engine
Accessories, spare parts and m odification of your Toyota

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The installation of a mobile two-way radio system in your vehicle could affect
electronic systems such as:
● Multiport fuel injection system/sequential multiport fuel injection system
● Toyota Safety Sense P (if equipped)
● Dynamic radar cruise control system (if equipped)
● Cruise control system (if equipped)
● Anti-lock brake system
● SRS airbag system
● Seat belt pretensioner system
Be sure to check with your Toyota dealer for precautionary meas ures or spe-
cial instructions regarding instal lation of a mobile two-way radio system.
The vehicle is equipped with sophisticated computers that will record certain
data, such as:
The recorded data varies according to the vehicle grade level and options
with which it is equipped
These computers do not record conversations or sounds, and only record
images outside of the vehicle in certain situations.
• Engine speed / Electric motor speed (traction motor speed)
• Accelerator status
• Brake status
• Vehicle speed
• Operation status of the driving assist systems, such as the AB S and pre-
collision system
• Images from the camera (available only when certain safety sys tems are
activated, which varies depending on the vehicle specifications).
●Data Transmission
Your vehicle may transmit the data recorded in these computers to Toyota
without notification to you.
Installation of a mobile two-way radio system
Vehicle data recording

17Pictorial index
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 232
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 232
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 536
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 425
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 543
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 323
Checking/rotation/tire pressure warning system
*3 . . . . . . . . . P. 425
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 504
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 411
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 411
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 537
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 527
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. 449, Watts: P. 545)
*1: Vehicles with a smart key system
*2: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”
*3: If equipped
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271-1. For safe use
1
For safety and security
WARNING
Observe the following precautions.
Failure to do so may cause the driver’s floor mat to slip, possibly interfering
with the pedals while driving. An unexpectedly high speed may result or it may
become difficult to stop the vehicle. This could lead to an acc ident, resulting in
death or serious injury.
■ When installing the driver’s floor mat
● Do not use floor mats designed for other models or different model year
vehicles, even if they are Toyota Genuine floor mats.
● Only use floor mats designed for the driver’s seat.
● Always install the floor mat securely using the retaining hooks (clips) pro-
vided.
● Do not use two or more floor mats on top of each other.
● Do not place the floor mat bottom-side up or upside-down.
■ Before driving
● Check that the floor mat is securely
fixed in the correct place with all the
provided retaining hooks (clips). Be
especially careful to perform this check
after cleaning the floor.
● With the engine stopped and the shift
lever in P (automatic transmission) or N
(manual transmission), fully depress
each pedal to the floor to make sure it
does not interfere with the floor mat.

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 parked 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 open 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. 477)*4
(U.S.A.)
ABS warning light
(P. 484)
*2, 4, 5
(Yellow)
LDA indicator ( P. 477)
*4
(Canada)
ABS warning light
(P. 484)
*4
(U.S.A.)
Brake system warning
light ( P. 482)
*2, 4
Slip indicator ( P. 484)
*4
(Canada)
Brake system warning
light (P. 482)
*4, 5Tire pressure warning
light (P. 484)
*4Automatic transmission
fluid temperature warn-
ing light ( P. 483)*4Brake Override System/
Drive-Start Control warn-
ing light
(P. 485, 486, 496)
*4High engine coolant tem-
perature warning light
(P. 483)*4Low engine oil level
warning light ( P. 485)
*4Low engine oil pressure
warning light ( P. 483)*4
(Canada
only)
Low windshield washer
fluid warning light
(P. 486)
*4
Charging system warn-
ing light ( P. 483)

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. 260)
*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