For safety and security -> Theft deterrent system for Your Toyota 4 Runner SUV Fifth Generation (2010-2024)

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1-3. Theft deterrent system  
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.  
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 system.  
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 security system  
(key with a built-in transponder chip) of another vehicle  
WARNING  
Certifications for the engine immobilizer system  
Changes or modifications not expressly approved by the party responsible  
for compliance could void the user’s authority to operate the equipment.  
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.  
4RUNNER (U)  
79  
1-3. Theft deterrent system  
Alarm  
The alarm  
The alarm uses light and sound to give an alert when an intrusion is  
detected.  
The alarm is triggered in the following situations when the alarm is  
set:  
1
A locked door is unlocked or opened in any way other than using  
the entry function, wireless remote control or mechanical key. (The  
doors will lock again automatically.)  
The hood is opened.  
The battery is reconnected.  
Setting the alarm system  
Close the doors and hood, and  
lock all the doors. The system will  
be set automatically after 30 sec-  
onds.  
The indicator light changes from  
being on to flashing when the sys-  
tem is set.  
Deactivating or stopping the alarm  
Do one of the following to deactivate or stopping the alarms:  
Unlock the doors.  
Turn the engine switch is in ACCESSORY or IGNITION ON mode,  
or start the engine. (The alarm will be deactivated or stopped after a  
few seconds.)  
: If equipped  
4RUNNER (U)  
80  
1-3. Theft deterrent system  
System maintenance  
The vehicle has a maintenance-free type alarm system.  
Items to check before locking the vehicle  
To prevent unexpected triggering of the alarm and vehicle theft, make sure of  
the following:  
Nobody is in the vehicle.  
The windows and moon roof are closed before the alarm is set.  
No valuables or other personal items are left in the vehicle.  
Triggering of the alarm  
The alarm may be triggered in the following situations:  
(Stopping the alarm deactivates the alarm system.)  
A person inside the vehicle opens a door  
or the hood.  
The battery is recharged or replaced  
when the vehicle is locked.  
Alarm-operated door lock  
When the alarm is operating, the doors are locked automatically to prevent  
intruders.  
Do not leave the key inside the vehicle when the alarm is operating, and  
make sure the key is not inside the vehicle when recharging or replacing the  
battery.  
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.  
4RUNNER (U)