Replacing the Battery in Your Toyota Highlander Smart Key

Does the battery in your Highlander’s key fob need to be replaced? Well, I have great news for you… It’s really easy to swap it out. Just grab yourself a CR2032 coin-style battery and keep reading…

Once you have the battery in hand, it’s just a matter of popping open the key fob and replacing the old battery. I did this recently while troubleshooting my door lock problems, and I snapped a few pics along the way.

For starters, you’ll need to slide the physical key out of the fob. In case you weren’t aware, you can do this by pressing the little button marked “PUSH” on the side of the fob and then slide the key (attached to the ring) out.

Toyota Highlander key release button... (click image to enlarge)

Toyota Highlander key release button… (click image to enlarge)

From there, slip the tip of the key blade into the slot at the top of the fob and twist. Note that this slot is obscured when the key is inserted into the fob.

Toyota Highlander key fob slot... (click image to enlarge)

Toyota Highlander key fob slot… (click image to enlarge)

Now that the fob is open, you just need to pop out the little circuit board to access the battery. You may need to insert the tip of the key (or something else small) at the notch in the lower corner and gently pry it up.

Toyota Highlander key fob circuit board... (click image to enlarge)

Toyota Highlander key fob circuit board… (click image to enlarge)

And there you have it… Just pop out the CR2032 battery, replace it with a new one, and reassemble your key fob. See? Very easy.

Toyota Highlander key fob battery... (click image to enlarge)

Toyota Highlander key fob battery… (click image to enlarge)

Beware: CR2032 vs. CR2025

A word of warning: When buying your replacement battery, be careful to get the CR2032 and not the (very!) similar-looking CR2025.

The CR2032 and CR2025 are both coin-style, 3V lithium batteries with identical diameters, but they’re not the same. The CR2025 is a bit thinner than the CR2032. Aside from having slightly lower capacity (240 mAh vs. 163 mAh), this means that the CR2025 doesn’t fit in all the same devices.

While it might be possible to “shim” the CR2025 to make it work in a pinch, you’re much better off buying the CR2032 and getting a perfect fit. Since the shelf life on lithium batteries of this sort is typically 10+ year, you might want to just pick one up and stick it in the glove box for future use.

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15 comments… add one
  • TyFlowshun Jul 2, 2015

    Say, the battery dies and you think nothing of it because as long as you have the key you’ll be fine with opening and locking the car, but then your car seizes and the maintenance can’t run diagnostics on it and are saying the the key lost its charge, does the key, “losing charge” have anything to do with the security?

  • Brad Strutner Jul 18, 2015

    We have a 2008 Highlander that uses CR 1632. The rest of the steps are the same.

  • Francisco Urosa Sep 3, 2015

    My Highlander 2013 uses the smaller in diameter CR1632 as well…

  • Alan Fanning Sep 15, 2015

    My 2010 Highlander Hybrid also uses the CR1632 battery.

  • Andy Staker Oct 17, 2015

    My 2012 also takes the 1632. Found out AFTER buying the 2032. D’oh!

  • Bob Nov 7, 2015

    Yep, 2013 Highlander is also a CR 1632. Open up the case before you buy a replacement.

    Thanks for the great explanations, I thought I had to go to dealer at first!

  • Dennis Jan 5, 2016

    Thank you for the post! 2013 Highlander uses 1632.

  • Tom W Jan 8, 2016

    The info in this post was correct except for the Battery. In my 2013 Highlander Hybrid the battery is a CR1632. You might want to open you key fob first and check your battery before buying your replacement.

  • Nathan Lyon Jul 21, 2016

    Get your facts right! After buying the batteries, I am unable to return them! Thanks!

  • Connie Aug 29, 2016

    My 2012 also uses the smaller CR1632 battery. Too bad I didn’t read the comments before I bought the battery. 🙁

  • DANIEL MAYER Nov 6, 2016

    Helpful! Thank you.

  • Brian Jun 8, 2017

    Same as everyone else here. Bad info-what year Highlander uses that battery??? Everyone’s comments says CR1632

  • Nick Portlock Aug 24, 2017

    I bought the correct battery (after a miss the first time!).
    It won’t stay in place. I try to put it into the spring but it just pops out again. I tried snapping the fob back quickly, but the battery jumped out of it’s place!
    Any ideas please?

  • eesan Oct 12, 2017

    To those of you complaining that the battery is CR 1632 and not CR 2032, the title clearly says that this article applies to 2014 and later models. Besides this article is , primarily a “how to” and not about battery sizes. The battery size could have been easily determined by opening up the fob before rushing off to the store.

  • Sonia Jan 17, 2018

    2014 CR 2032. Very helpful thank you.

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