When trouble arises -> If electronic key does not operate properly for Your Toyota 4 Runner SUV Fifth Generation (2010-2024)

512  
7-2. Steps to take in an emergency  
If the electronic key does not operate  
properly  
If communication between the electronic key and vehicle is  
interrupted (P. 117) or the electronic key cannot be used  
because the battery is depleted, the smart key system and wire-  
less remote control cannot be used. In such cases, the doors  
can be opened and the engine can be started by following the  
procedure below.  
Locking and unlocking the doors  
Use the mechanical key  
(P. 103) in order to perform the  
following operations:  
Locks all the doors  
1
2
Closes the windows and moon  
roof (turn and hold)*  
(P. 156, 163)  
Unlocks all the doors  
3
4
Turning the key rearward unlocks the driver’s door. Turning the key once  
again unlocks the other doors.  
Opens the windows and moon roof (turn and hold)*  
(P. 156, 163)  
*: This setting must be customized at your Toyota dealer.  
4RUNNER (U)  
513  
7-2. Steps to take in an emergency  
Starting the engine  
1
2
Ensure that the shift lever is in P and depress the brake pedal.  
Touch the Toyota emblem side  
of the electronic key to the  
engine switch.  
When the electronic key is  
detected, a buzzer sounds and the  
engine switch will turn to IGNITION  
ON mode.  
When the smart key system is  
deactivated in customization set-  
ting, the engine switch will turn to  
ACCESSORY mode.  
3
4
Firmly depress the brake pedal and check that  
on the multi-information display.  
is displayed  
Press the engine switch shortly and firmly.  
In the event that the engine still cannot be started, contact your Toyota  
dealer.  
Stopping the engine  
Shift the shift lever to P and press the engine switch as you normally do when  
stopping the engine.  
Replacing the key battery  
7
As the above procedure is a temporary measure, it is recommended that the  
electronic key battery be replaced immediately when the battery is depleted.  
(P. 447)  
Changing engine switch modes  
Within 10 seconds of the buzzer sounding, release the brake pedal and press  
the engine switch.  
The engine does not start and modes will be changed each time the switch is  
pressed.(P. 200)  
When the electronic key does not work properly  
Make sure that the smart key system has not been deactivated in the cus-  
tomization setting. If it is off, turn the function on.  
(Customizable features: P. 549)  
Check if battery-saving mode is set. If it is set, cancel the function.  
(P. 116)  
4RUNNER (U)  
514  
7-2. Steps to take in an emergency  
WARNING  
When using the mechanical key and operating the power windows,  
power back window or moon roof  
Operate the power windows, power back window or moon roof after check-  
ing to make sure that there is no possibility of any passenger having any of  
their body parts caught in the window or moon roof.  
Also, do not allow children to operate the mechanical key. It is possible for  
children and other passengers to get caught in the power windows, power  
back window or moon roof.  
4RUNNER (U)