check engine TOYOTA SEQUOIA 2020 (in English) Workshop Manual

5248-1. Specifications
SEQUOIA_OM_USA_OM0C021U_20MY
Cooling system
Capacity
Vehicles without towing package
13.1 qt. (12.4 L, 10.9 Imp.qt.)
Vehicles with towing package
14.1 qt. (13.3 L, 11.7 Imp.qt.)
Coolant type
Use either of the following:• “Toyota Super Long Life Coolant”
• A similar high-quality ethylene glycol-
based non-silicate, non-amine, non-
nitrite, and non-borate coolant with
long-life hybrid organic acid technol-
ogy
Do not use plain water alone.
Ignition system
Spark plug
Make
GapDENSO SK20HR11
0.043 in. (1.1 mm)
NOTICE
■ Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark pl ug gap.
Electrical system
Battery
Open voltage at
68 °F (20 °C):12.6  12.8 V Fully charged
12.2  12.4 V Half charged
11 . 8  12.0 V Discharged
(Voltage checked 20 minutes after the
engine and all the lights are turned off.)
Charging rates5 A max.

570What to do if... (Troubleshooting)
SEQUOIA_OM_USA_OM0C021U_20MY
What to do if... (Troubleshooting)
●If you lose your mechanical keys, new genuine mechanical keys can be
made by your Toyota dealer. ( P. 109)
●If you lose your keys or electronic keys, the risk of vehicle t heft increases
significantly. Contact your Toyota dealer immediately. ( P. 112)
●Is the electronic key battery weak or depleted? (P. 444)
●Is the engine switch in ON?
When locking the doors, turn the engine switch off. ( P. 215)
●Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on
your person.
●The function may not operate properly due to the condition of t he radio
wave. ( P. 110)
●Is the child-protector lock set?
The rear door cannot be opened from inside the vehicle when the lock is
set. Open the rear door from outside and then unlock the child-protector
lock. ( P. 115)
If you have a problem, check the following before contacting
your Toyota dealer.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened

572What to do if... (Troubleshooting)
SEQUOIA_OM_USA_OM0C021U_20MY
●The auto power off function will be operated if the vehicle is left in ACC or
ON (the engine is not running) for a period of time. ( P. 216)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts?
(P. 471)
Depending on the situation, other types of warning buzzer may a lso sound.
( P. 469, 477)
●Did anyone inside the vehicle open a door during setting the al arm?
The sensor detects it and the alarm sounds. ( P. 84)
To stop the alarm, start the engine.
●Is the electronic key left inside the vehicle?
Check the message on the multi-information display. ( P. 477)
●When a warning light turns on, refer to P. 469.
●When a warning light turns on or a warning message or indicator is dis-
played, refer to P. 469, 477.
The engine switch is tur ned off automatically
A warning buzzer sounds during driving
An alarm is activated and the horn sounds
A warning buzzer sounds w hen leaving the vehicle
A warning light turns on or a warning message is displayed

577Alphabetical index
SEQUOIA_OM_USA_OM0C021U_20MY
EDR (Event data recorder) ........ 11
Electronically modulated air suspension ....................... 309
Emergency flashers ................ 458
Emergency, in case of
If a warning buzzer sounds ................................ 469
If a warning light turns on ....................................... 469
If a warning message
is displayed......................... 477
If the engine will not start ...... 503
If the vehicle battery is discharged .......................... 507
If the vehicle is trapped in rising water ..................... 461
If you have a flat tire ............. 489
If you think something is wrong .............................. 467
If your vehicle becomes stuck ................................... 514
If your vehicle has to be
stopped in an emergency ... 459
If your vehicle needs to be towed ......................... 462
If your vehicle overheats ....... 511 Engine
Compartment ........................ 414
Engine switch ....................... 214
Hood ..................................... 413
How to start the engine......... 214
Identification number ............ 520
If the engine will not start ...... 503
Ignition switch
(engine switch) ................... 214
Overheating .......................... 511
Engine coolant......................... 418
Capacity................................ 524
Checking............................... 418
Preparing and checking before winter ...................... 334
Engine coolant temperature gauge ....................................... 94
Engine immobilizer system ...... 76
Engine oil ................................. 415 Capacity................................ 522
Checking............................... 415
Preparing and checking before winter ...................... 334
Engine switch .......................... 214
Event data recorder (EDR)........ 11
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