immobilizer TOYOTA 4RUNNER 2023 Owners Manual

TABLE OF CONTENTS2
4RUNNER (U)For your information....................... 8
Reading this manual .................... 14
How to search .............................. 15
Pictorial index .............................. 16
1-1. For safe use
Before driving ...................... 28
For safe driving ................... 30
Seat belts ............................ 32
SRS airbags ........................ 37
Front passenger occupant classification system ......... 48
Safety information for children ............................. 54
Child restraint systems ........ 55
Installing child restraints ...... 59
Exhaust gas precautions ..... 71
1-2. Emergency assistance Safety Connect.................... 72
1-3. Theft deterrent system Engine immobilizer system............................... 78
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 ......................... 106
3-2. Opening, closing and locking the doors
Smart key system .............. 113
Automatic running boards ............................. 121
Back door .......................... 124
3-3. Adjusting the seats Front seats......................... 129
Rear seats ......................... 132
Driving position memory .... 142
Head restraints .................. 146
3-4. Adjusting the steering wheel and mirrors
Steering wheel ................... 149
Inside rear view mirror ....... 151
Outside rear view mirrors ............................. 153
3-5. Opening, closing the windows and moon roof
Power windows.................. 155
Power back window ........... 158
Moon roof .......................... 161
1For safety and security
2Instrument cluster
3Operation of
each component

27
For safety and security1
4RUNNER (U)1-1. For safe use
Before driving ...................... 28
For safe driving ................... 30
Seat belts ............................ 32
SRS airbags ........................ 37
Front passenger occupant classification system ......... 48
Safety information for children ............................. 54
Child restraint systems........ 55
Installing child restraints...... 59
Exhaust gas precautions..... 71
1-2. Emergency assistance Safety Connect ................... 72
1-3. Theft deterrent system Engine immobilizer system .............................. 78
Alarm................................... 79

78
4RUNNER (U)
1-3. Theft deterrent system
The indicator light flashes after
the engine switch has been turned
off to indicate that the system is
operating.
The indicator light stops flashing
after the engine switch has been
turned to ACCESSORY or IGNI-
TION 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 object
● If the key is in close proximity to or touching a key to the se curity system
(key with a built-in transponder chip) of another vehicle
Engine immobilizer system
The vehicle’s keys have 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.
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.

2024-2. Driving procedures
4RUNNER (U)■
If the engine does not start
●The engine immobilizer system may not have been deactivated. ( P. 78)
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.
■ 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. 447
■ 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.

5097-2. Steps to take in an emergency
7
When trouble arises
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. 199)
● There may be a malf unction in the engine immobilizer system.
(  P. 78)
One of the following may be the cause of the problem:
● The battery may be discharged. ( P. 515)
● 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. 510)
If the engine will not star t
If the engine will not start eve n though correct starting proce -
dures are being followed ( P. 199), consider each of the follow-
ing 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

585Alphabetical index
4RUNNER (U)
Driving ...................................... 166Break-in tips .......................... 168
Correct driving posture ........... 30
Driving assist systems .......... 322
Off-road precautions ............. 335
Procedures ........................... 166
Winter drive tips .................... 331
Dynamic radar cruise
control .................................... 257
Eco Driving Indicator ................ 98
EDR (Event data recorder) ........ 10
Electronic key .......................... 102 Battery-saving function ......... 116
If the electronic key does not operate properly ................. 512
Replacing the battery ............ 447
Emergency, in case of
If the electronic key does not operate
properly .............................. 512
If the engine will not start ...... 509
If the vehicle battery is discharged .......................... 515
If the warning buzzer sounds ................................ 477
If the warning light turns on ....................................... 477
If a warning message is displayed......................... 488
If the vehicle is submerged
or water on the road is
rising ................................... 468
If you cannot operate
back door opener ............... 511 If you have a flat tire ............. 493
If you think something
is wrong .............................. 475
If your vehicle becomes stuck ................................... 522
If your vehicle has to be stopped in an emergency ... 467
If your vehicle needs
to be towed......................... 469
If your vehicle overheats....... 519
Emergency flashers ................ 466
Engine
ACCESSORY mode ............. 200
Compartment ........................ 413
Engine switch ....................... 199
Hood ..................................... 412
How to start the engine......... 199
Identification number ............ 525
If the engine will not start ...... 509
Ignition switch (engine switch) ................... 199
Overheating .......................... 519
Engine coolant......................... 417
Capacity................................ 528
Checking............................... 417
Preparing and checking before winter ...................... 331
Engine coolant temperature gauge ....................................... 88
Engine immobilizer system ...... 78
Engine oil ................................. 415
Capacity................................ 527
Checking............................... 415
Preparing and checking before winter ...................... 331
Engine switch .......................... 199
Event data recorder (EDR)........ 10
E

587Alphabetical index
4RUNNER (U)
Head restraints ........................ 146
Headlights ................................ 212Automatic High Beam system ......... ....................... 217
Light switch ........................... 212
Replacing light bulbs..... 455, 463
Wattage ................................ 533
Heaters Air conditioning system ....... ................. 342, 349
Outside rear view mirrors ....................... 344, 351
Seat heaters ......................... 357
Hill-start assist control............ 323
Hood ......................................... 412
Hooks Cargo hooks ......................... 370
Cargo net hooks ................... 371
Grocery bag hooks ............... 373
Retaining hooks (floor mat)..... 28
Horn .......................................... 149 I/M test ...................................... 408
Identification
Engine .................................. 525
Vehicle .................................. 525
Ignition switch (engine switch) ...................... 199
Illuminated entry system ........ 362
Immobilizer system ................... 78
Indicators ................................... 85
Initialization
Maintenance ......................... 404
Moon roof ............................. 163
Power back window .............. 159
Power windows..................... 156
Inside rear view mirror ............ 151
Instrument panel light control ...................................... 89
Interior lights ........................... 360
Intuitive parking assist ........... 277
HI

593Alphabetical index
4RUNNER (U)
Tachometer ................................ 88
Tail lights .................................. 212Light switch ........................... 212
Telephone switches
*
Theft deterrent system
Alarm ...................................... 79
Engine immobilizer system ..... 78
Tire inflation pressure ............. 440 Maintenance data ................. 532
Warning light ......................... 481
Tire information ....................... 537 Glossary................................ 543
Size ....................................... 539
Tire identification number ..... 538
Uniform Tire Quality Grading............................... 541
Tire pressure warning system .................................... 429 Function ................................ 429
Installing tire pressure warning
valves and transmitters ...... 430
Registering ID codes ............ 431
Warning light ......................... 481 Tires .......................................... 427
Chains .................................. 333
Checking............................... 427
If you have a flat tire ............. 493
Inflation pressure .................. 532
Information............................ 537
Replacing.............................. 493
Rotating tires ........................ 428
Size....................................... 532
Snow tires ............................. 334
Spare tire .............................. 493
Tire pressure warning
system .......... ...................... 429
Warning light......................... 481
Tools ......................................... 494
Top tether strap ......................... 68
Total load capacity .................. 181
Towing Dinghy towing ....................... 198
Emergency towing ................ 472
Trailer towing ........................ 182
Toyota Safety Sense P ............ 232 Automatic High Beam ........... 217
Dynamic radar cruise
control ................................ 257
LDA (Lane Departure Alert) ....... 249
PCS (Pre-Collision System) ....... 239
T
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

596
4RUNNER (U)
Engine Immobilizer system
Certification