Toyota 4Runner manuals

Toyota 4Runner: If the electronic key does not operate properly (vehicles with a smart key system)

Toyota 4Runner Owners Manual / When trouble arises / If the engine will not start / If the electronic key does not operate properly (vehicles with a smart key system)

If communication between the electronic key and vehicle is interrupted  or the electronic key cannot be used because the battery is depleted, the smart key system and wireless 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. 33) in order to perform the following operations:

1. Locks all doors
2. Unlocks all doors Turning the key rearward unlocks the driver’s door.

Turning the key once again unlocks the other doors.

Starting the engine

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 START STOP” switch.

If any of the doors is opened or closed while the key is being touched to the switch, an alarm will sound to indicate that the start function cannot detect the key.

switch within 10 seconds of the buzzer sounding, keeping the brake pedal depressed.

In the event that the “ENGINE START STOP” switch cannot be operated, contact your Toyota dealer.

Stopping the engine

Shift the shift lever to P and press the “ENGINE START STOP” switch as you normally do when stopping the engine.

Replacing the key battery

As the above procedure is a temporary measure, it is recommended that the electronic key battery be replaced immediately when the battery is depleted.

Changing “ENGINE START STOP” switch modes

Within 10 seconds of the buzzer sounding, release the brake pedal and press the “ENGINE START STOP” switch.

The engine does not start and modes will be changed each time the switch is pressed.

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