Toyota FJ Cruiser Key Fob Battery Replacement

2006–2008 Models

Most Common

Remote Head Key

2006–2008 Toyota FJ Cruiser Remote Head Key
Battery Type
CR2016
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Toyota FJ Cruiser Remote Head Key Battery Replacement Video
Replacement Steps for Remote Head Key

Tools needed: Small flathead screwdriver

Open the case Fit a small flathead screwdriver into the seam between the two halves and twist gently until the halves separate. Work along the edge instead of forcing one spot.
Take out the old battery Note which way the CR2016 faces, then lift it out with a fingernail or a small screwdriver tip.
Fit the new battery Put the new CR2016 in with the positive (+) side facing the same way as the old one, and press it flat into its holder.
Close it up and test Line up the halves and press until they click, then try lock and unlock from a few feet away.

Frequently Asked Questions

What battery does a Toyota FJ Cruiser key fob use?

The 2006–2008 Toyota FJ Cruiser key fob uses a CR2016 3-volt lithium coin battery. This is a standard battery available at most grocery stores, pharmacies, and online retailers.

How do I know if my Toyota FJ Cruiser key fob battery is dying?

Signs your Toyota FJ Cruiser key fob battery is dying include: reduced range (having to get closer to unlock), intermittent button response, delayed unlocking, the low battery warning on your dashboard, or buttons requiring multiple presses to work.

How long does a Toyota FJ Cruiser key fob battery last?

A Toyota FJ Cruiser key fob battery typically lasts 2-4 years depending on usage. Frequent use, extreme temperatures, and proximity to electronic devices can shorten battery life.

Can I replace my Toyota FJ Cruiser key fob battery myself?

Yes, replacing a Toyota FJ Cruiser key fob battery is a simple DIY task that takes under 5 minutes. You only need a new CR2016 battery and optionally a small flathead screwdriver. No dealer visit or programming is required.

Do I need to reprogram my key fob after replacing the battery?

No, you do not need to reprogram your Toyota FJ Cruiser key fob after replacing the battery. The fob retains its programming during battery changes. Simply insert the new battery and test the buttons.

Where can I buy a CR2016 battery?

CR2016 batteries are available at Walmart, Target, CVS, Walgreens, Amazon, auto parts stores like AutoZone and O'Reilly, and most grocery stores. They typically cost $6-12 for a 2-pack.