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Toyota Sienna 2010-2026 Owners Manual: Wireless remote control/ electronic key battery

Toyota Sienna 2010-2026 Owners Manual / Maintenance and care / Do-it-yourself maintenance / Wireless remote control/ electronic key battery

Replace the battery with a new one if it is depleted.

You will need the following items:

Replacing the battery

Toyota Sienna. Replacing the battery


  1. Remove the cover using a coin protected with tape etc.

Toyota Sienna. Replacing the battery


  1. Remove the depleted battery.

    Insert a new battery with the “+” terminal facing up.

Toyota Sienna. Replacing the batter


  1. Take out the mechanical key.

Toyota Sienna. Replacing the batter


  1. Remove the cover.

    To prevent damage to the key, cover the tip of the screwdriver with a rag.

Toyota Sienna. Replacing the batter


  1. Remove the depleted battery.

    Insert a new battery with the “+” terminal facing up.

Use a CR2032 lithium battery

If the key battery is depleted

The following symptoms may occur.

WARNING

Removed battery and other parts

These parts are small and if swallowed by a child, they can cause choking.

Keep away from children. Failure to do so could result in death or serious injury.

NOTICE

For normal operation after replacing the battery

Observe the following precautions to prevent accidents.

  • Always work with dry hands.

    Moisture may cause the battery to rust.

  • Do not touch or move any other components inside the remote control.
  • Do not bend either of the battery terminals.
Air conditioning filter
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Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have blown. If this happens, check and replace the fuses as necessary. Turn the engine switch to the “LOCK” position (vehicles w ...

Other materials:

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Diagnosis system
1. CHECK DLC3  The vehicle's ECU uses ISO 15765-4 for communication protocol. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 format. NOTICE: *: Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not ...

Magnetic clutch relay
ON-VEHICLE INSPECTION 1. INSPECT MAGNETIC CLUTCH RELAY (a) Remove the magnetic clutch relay. (b) Measure the resistance according to the value(s) in the table below. Standard resistance If the resistance is not as specified, replace the magnetic clutch relay. ...

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