immobilizer TOYOTA 4RUNNER 2021 Owners Manual (in English)

TABLE OF CONTENTS2
4RUNNER (U)For your information....................... 8
Reading this manual .................... 12
How to search .............................. 13
Pictorial index .............................. 14
1-1. For safe use
Before driving ...................... 26
For safe driving ................... 28
Seat belts ............................ 30
SRS airbags ........................ 35
Front passenger occupant classification system ......... 46
Safety information for children ........................ 52
Child restraint systems ........ 53
Installing child restraints ...... 57
Exhaust gas precautions ..... 69
1-2. Emergency assistance Safety Connect.................... 70
1-3. Theft deterrent system Engine immobilizer system............................... 76
Alarm ................................... 79
2. Instrument cluster Warning lights and indicators........................... 82
Gauges and meters............. 88
Multi-information display ..... 90 3-1. Key information
Keys................................... 102
Side doors ......................... 110
3-2. Opening, closing and locking the doors
Smart key system .............. 118
Automatic running boards ............................. 128
Back door .......................... 131
3-3. Adjusting the seats Front seats......................... 136
Rear seats ......................... 139
Driving position memory ........................... 149
Head restraints .................. 153
3-4. Adjusting the steering wheel and mirrors
Steering wheel ................... 156
Inside rear view mirror ....... 158
Outside rear view mirrors ............................. 160
3-5. Opening, closing the windows and
moon roof
Power windows.................. 162
Power back window ........... 166
Moon roof .......................... 170
1For safety and security
2Instrument cluster
3Operation of
each component

25
For safety and security1
4RUNNER (U)1-1. For safe use
Before driving ...................... 26
For safe driving ................... 28
Seat belts ............................ 30
SRS airbags ........................ 35
Front passenger occupant classification system ......... 46
Safety information for children ........................ 52
Child restraint systems........ 53
Installing child restraints...... 57
Exhaust gas precautions..... 69
1-2. Emergency assistance Safety Connect ................... 70
1-3. Theft deterrent system Engine immobilizer system .............................. 76
Alarm................................... 79

76
4RUNNER (U)
1-3. Theft deterrent system
Vehicles without a smart key system
The indicator light flashes after
the key has been removed from
the engine switch to indicate that
the system is operating.
The indicator light stops flashing
after the registered key has been
inserted into the engine switch to
indicate that the system has been
canceled.
Vehicles with a smart key system
The indicator light flashes aft er the engine switch has been tu rned off
to indicate that the system is operating.
The indicator light stops flashi ng after the engine switch has been
turned to ACCESSORY or IGNITION ON mode to indicate that the
system has been canceled.
■ System maintenance
The vehicle has a maintenance-free type engine immobilizer syst em.
■ Conditions that may cause the system to malfunction
●If the grip portion of the key is in contact with a metallic ob ject
● If the key is in close proximity to or touching a key to the security system
(key with a built-in transponder chip) of another vehicle
Engine immobilizer system
The vehicle’s keys ha ve built-in transponder chips that prevent
the engine from starting if a key has not been previously regis -
tered in the vehicle’s on-board computer.
Never leave the keys inside the vehicle when you leave the vehi-
cle.
This system is designed to help prevent vehicle theft but does
not guarantee absolute security against all vehicle thefts.

771-3. Theft deterrent system
1
For safety and security
4RUNNER (U)■
Certifications for the engine immobilizer system (vehicles with out a
smart key system)
For vehicles sold in the U.S.A.
For vehicles sold in Canada

781-3. Theft deterrent system
4RUNNER (U)■
Certifications for the engine immobilizer system (vehicles with a smart
key system)
For vehicles sold in the U.S.A.
For vehicles sold in Canada
WARNING
■ Certifications for the engine immobilizer system
Changes or modifications not expressly approved by the party re sponsible
for compliance could void the user’s authority to operate the e quipment.
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper
operation of the system cannot be guaranteed.

2104-2. Driving procedures
4RUNNER (U)
■Turning the key from “ACC” to “LOCK”
Shift the shift lever to P.
■ If the engine does not start
The engine immobilizer system may not have been deactivated. ( P. 76)
Contact your Toyota dealer.
■ When the steering lock cannot be released
■ Key reminder function
A buzzer sounds if the driver’s door is opened, while the engin e switch is in
the “LOCK” or “ACC” position to remind you to remove the key. Push in the key and turn to the “LOCK”
position.
When starting the engine, the engine
switch may seem stuck in the “LOCK”
position. To free it, turn the key while turn-
ing the steering wheel slightly left and
right.
1
2

2154-2. Driving procedures
4
Driving
4RUNNER (U)■
If the engine does not start
●The engine immobilizer system may not have been deactivated. ( P. 76)
Contact your Toyota dealer.
● Check that the shift lever is securely set in P. The engine may not start if the
shift lever is displaced out of P.
■ Steering lock
After turning the engine switch off and opening and closing the doors, the
steering wheel will be locked due to the steering lock function. Operating the
engine switch again automatically cancels the steering lock.
■ When the steering lock cannot be released
■ Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, the motor may be sus-
pended if the engine is turned on and off repeatedly in a short period of time.
In this case, refrain from operating the engine. After about 10 seconds, the
steering lock motor will resume functioning.
■ When a message requesting the smart key system be inspected is dis-
played on the multi-information display
The system may be malfunctioning. Have the vehicle inspected by your
Toyota dealer immediately.
■ If the electronic key battery is depleted
P. 443
■ Operation of the engine switch
If the switch is not pressed shortly and firmly, the engine swi tch mode may
not change or the engine may not start. When the steering lock cannot be
released, “Push the engine switch while
turning the steering wheel in either direc-
tion” will be displayed on the multi-infor-
mation display.
Press the engine switch shortly and firmly
while turning the steering wheel left and
right.

5047-2. Steps to take in an emergency
4RUNNER (U)
One of the following may be the cause of the problem:
● There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
● The engine may be flooded.
Try to restart the engine again following correct starting proc edures.
(  P. 209, 212)
● There may be a malf unction in the engine immobilizer system.
(  P. 76)
One of the following may be the cause of the problem:
● The battery may be discharged. ( P. 510)
● The battery terminal connecti ons may be loose or corroded.
The engine starting system may be malfunctioning due to an elec trical
problem such as an open circuit or a blown fuse. However, an in terim
measure is available to start the engine. ( P. 505)
If the engine will not star t
If the engine will not start eve n though correct starting proce -
dures are being followed ( P. 209, 212), consider each of the fol-
lowing points:
The engine will not start even t hough the starter motor operates
normally.
The starter motor turns over slowly, the interior lights and he ad-
lights are dim, or the horn does not sound or sounds at a low
volume.
The starter motor d oes not turn over

582Alphabetical index
4RUNNER (U)
Driving ...................................... 176Break-in tips .......................... 178
Correct driving posture ........... 28
Driving assist systems .......... 320
Off-road precautions ............. 333
Procedures ........................... 176
Winter drive tips .................... 329
Dynamic radar cruise
control .................................... 272
Eco Driving Indicator ................ 97
EDR (Event data recorder) ........ 10
Electronic key .......................... 102 Battery-saving function ......... 121
If the electronic key does not operate properly ................. 507
Replacing the battery ............ 443
Emergency, in case of
If the electronic key does not operate
properly .............................. 507
If the engine will not start ...... 504
If the vehicle battery is discharged .......................... 510
If the warning buzzer sounds ................................ 474
If the warning light turns on ....................................... 474
If a warning message is displayed......................... 484
If you cannot operate
back door opener ............... 506
If you have a flat tire ............. 489
If you think something is wrong .............................. 472
If your vehicle becomes stuck ................................... 517
If your vehicle has to be stopped in an emergency ... 463
If your vehicle needs
to be towed ......................... 466
If your vehicle overheats ....... 514 Emergency flashers ................ 462
Engine
ACCESSORY mode ............. 213
Compartment ........................ 408
Engine switch ............... 209, 212
Hood ..................................... 407
How to start the engine ........................ 209, 212
Identification number ............ 521
If the engine will not start ...... 504
Ignition switch (engine switch) ........... 209, 212
Overheating .......................... 514
Engine coolant......................... 412
Capacity................................ 524
Checking............................... 412
Preparing and checking before winter ...................... 329
Engine coolant temperature gauge ....................................... 88
Engine immobilizer system ...... 76
Engine oil ................................. 410 Capacity................................ 523
Checking............................... 410
Preparing and checking
before winter ...................... 329
Engine switch .................. 209, 212
Event data recorder (EDR)........ 10
Flat tire ..................................... 489
Floor mats .................................. 26
Fluid
Automatic transmission ........ 527
Brake .................................... 527
Power steering...................... 528
Washer ................................. 420
Fog lights ................................. 234
Replacing light bulbs ............ 449
Switch ................................... 234
Wattage ................................ 529
Four-wheel drive system............................ 292, 296
E
F

584Alphabetical index
4RUNNER (U)
I/M test ...................................... 403
IdentificationEngine................................... 521
Vehicle .................................. 521
Ignition switch (engine switch) .............. 209, 212
Illuminated entry system ........ 359
Immobilizer system ................... 76
Indicators ................................... 85
Initialization
Maintenance ......................... 399
Moon roof.............................. 172
Power back window .............. 168
Power windows ..................... 164
Inside rear view mirror ............ 158
Instrument panel light control ...................................... 89
Interior lights............................ 357
Intuitive parking assist............ 285 Jack
Vehicle-equipped jack .......... 489
Jack handle .............................. 493
Jam protection function Moon roof ............................. 171
Power back window .............. 168
Power windows..................... 163
KDSS ........................................ 321
Keyless entry ........................... 118 Smart key system ................. 118
Wireless remote control ........ 110
Keys .......................................... 102 Battery-saving function ......... 121
Electronic key ....................... 102
Engine switch ............... 209, 212
If the electronic key
does not operate
properly .............................. 507
Key number plate ................. 102
Keyless entry ........................ 110
Mechanical key ..................... 104
Replacing the battery............ 443
Warning buzzer .................... 120
Wireless remote control
key...................................... 110
Knee airbags .............................. 35
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