Fuel tank cap


The system will be cancelled by the above mentioned 3 ways.

If the tail lights come on for 2 seconds, the theft deterrent system has been alarmed. Check to see if there is any abnormality with your vehicle.


1. Open all the windows.

2. Set the system as described above. The doors should be locked with the key, wireless remote control or entry function of the smart key system. Be sure to wait until the indicator light starts flashing.

3. Unlock any door from the inside. The system should activate the alarm.

4. Stop the alarm as described above.

5. Repeat this operation for the other doors, trunk and hood. When testing the hood, also check that the system is activated when the battery terminal is disconnected and then reconnected.

If the system does not work properly, have it checked by your Toyota dealer.

This indicates that the fuel filler door is on the left side of your vehicle.

Open Tank Cap Opening

1. To open the fuel filler door, pull the lever up.

When refueling, turn off the engine.

• Do not smoke, cause sparks or allow open flames when refueling. The fumes are flammable.

• When opening the cap, do not remove the cap quickly. In hot weather, fuel under pressure could cause injury by spraying out of the filler neck if the cap is suddenly removed.

Toyota Sienna Fuel Tank Cap

2. To remove the fuel tank cap, turn the cap slowly counterclockwise, then pause slightly before removing it.

It is not unusual to hear a slight swoosh when the cap is opened.

3. The removed cap can be stored on the back side of the fuel filler door.

When installing the cap, turn the cap clockwise until you hear a click. When you hear the click, the cap is fully closed.

If the cap is not installed securely, the malfunction indicator lamp comes on. Make sure the cap is tightened securely.

The indicator lamp goes off after driving several times. If the indicator lamp does not go off, contact your Toyota dealer as soon as possible.

• Make sure the cap is installed securely to prevent fuel spillage in the event of an accident.

• Use only a genuine Toyota fuel tank cap for replacement. It is designed to regulate fuel tank pressure.


To prevent damage to the cap, apply force only in the turning direction to the cap. Do not pull or pry it.

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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