Honda Odyssey Key Fob Battery Replacement Guide (2005 – 2020)

The Honda Minivan, the Odyssey, has used nearly every Honda key fob remote in its lifetime since 1999. The newest smart key fob uses a simple CR2032 3v Coin battery. The newest fob looks like this:

Honda Odyssey smart key battery
Honda Odyssey Smart Key Fob

Your fob may have more buttons or look slightly different, but the internal battery is the same to change.

How to Replace a Honda Odyssey Key Battery (2014 – Present) Smart Key

How to replace the Honda Odyssey Key Battery – Smart Fob

This smart fob has been used in the Honda Odyssey since 2014. Also used in years:

  • 2014
  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 2020

This is an easy key battery to find and to change. Here’s my quick Youtube video I made to show you how to change the Odyssey smart key battery in 60 seconds:

Honda Odyssey Key Battery Replacement Guide 2014 - 2020

This is the battery you need for this Honda CR-V Smart Key Fob:

Amazon Basics 4 Pack CR2032 3 Volt Lithium Coin Cell Battery
  • IN THE BOX: 4-pack of CR2032 3 volt lithium coin cell batteries; replacement for BR2032, DL2032, and ECR2032
  • DEVICE COMPATIBLE: Ideal for watches, calculators, key fobs, Apple TV remotes, and other small electronics
  • DESIGNED TO LAST: 8-year leak-free shelf life
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GIF Visual Guide

Alright. So in this video, I'm going to show you how to change the smart key Fob for Honda Odyssey. This is from years 2014 to present uses the Smart key and this is a really easy key Fob battery to change. So if we flip it over, look on the back guide, there's a little knob here. We can pull that knob to release the internal valet key.

Now with the valet key, we can use this. We put it right in the middle between these two pieces of the fob itself and just give it a little twist kind of each way and that will be able to pry these two pieces once you get them kind of popped off

I have to get a little bit of a more leverage sometimes. But this key fob, once you have it going, you're not going to break anything on this one. Okay. So I've got that going out. Okay

So this pops into two pieces and then the internal key battery that you need for the Odyssey is the CR 2032, the 3 volt coin battery. I can go ahead and just take your value on the left side here and pop that battery right out. Put a new one in. Make sure if you see these two longer teeth on the right to put the coin battery underneath those first, it'll slide right in really easily. Save you some frustration.

So let's get a new battery in there to take the other side of the key, snap that back together like so and go ahead and put your valet key back in. That's it. That's how you change the key battery on the Honda Odyssey from 2014 to present. Smart key.

Replace a Honda Odyssey Key Battery (2005 – 2010) – Physical Key Rounded Buttons

Replace the key coin battery in your older Odyssey fobs years
2005, 2006, 2008, 2009, 2010

To change the battery in this key, you’ll want a precision screwdriver set $4 on Amazon since the screw is very small on the back of the key. Here’s my video showing exactly how to change this battery on the older Odyssey fob:

6 PCS Precision Screwdriver Sets, Eyeglass Repair Kit Screwdriver, Mini Screwdriver Set, Flat Head and Philips Head Screwdriver Sets, With 6 Different Sizes, Suitable For Watch, Electronic Repairs
  • 1【6 Different Sizes】Precision screwdriver set, The set includes 2 cross sizes (#0,#1); 4 flat head sizes(1.4 mm, 2.0 mm, 2.4 mm, 3.0 mm); mini screwdriver is your daily electronic repair, watch repair, jewelry repair Perfect choice for any other small screws.
  • 2【Rotating Design】Eyeglass repair kit, The end cover adopts a rotating design, which is flexible to rotate, and the gap is tightly combined,and it is comfortable to use. Rotating end cap improves efficiency and is easy to use.
  • 3【High Quality】Our precision screwdriver set is made of high-quality chrome vanadium steel material, hardened carbon steel shaft, black oxidation treatment, durable and corrosion-resistant. The screwdriver is small and very suitable for small screws.
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2005 - 2010 Honda Odyssey Key Battery Replacement Guide

This is the battery you need for this Honda Accord physical key with rounded buttons:

Amazon Basics 2 Pack CR1616 3 Volt Lithium Coin Cell Battery
  • IN THE BOX: 2-pack of CR1616 lithium coin cells; replacement batteries for small electronic devices
  • DEVICE COMPATIBLE: Powers devices such as watches, calculators, sporting goods, games, medical devices, and more
  • DESIGNED TO LASRT:Long-lasting, reliable battery life; performs in extreme temperatures
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GIF Visual Guide

Alright. So in this video, I'm going to show you how to change the Honda Odyssey key battery. So if you've got an older model from 2005 to 2010, you may have this key Fob. So to change this, go ahead and flip it over. You'll see in the back there's a small Phillips screw

You'll need a precision screw set, like this screwdriver set. You can get this for $4 on Amazon. And I'll leave a link at the bottom. So this set. So we're just going to unscrew this little baby screw to start

And once we get this off, everything goes fairly quickly. There's just a number of steps. So I'll walk you through those. But first and this can be difficult to get this screwed up the first time. Okay

So once we've got that off, now we'll need to grab our, I would say the largest of the flathead screwdrivers. And you can see right at the base here, there's a little bit of a notch right at the middle midline. If you go ahead and put your Phillips screwdriver in there and then just twist a little bit, you'll be able to pop off the shell of this Fob. And then once we've got that off, we can just pull out the internal section and set aside the case. So here, there's another notch in the upper right here.

You can see there. So we're going to do the same thing as just put in our Phillips screwdriver and just twist. And this will be able to separate the internal piece into two pieces and give us access to the battery that we need to change. And here we can just put our Phillips right underneath there and pop out the battery. You'll see, this is a CR 1616 3 volt coin battery.

And changing this is pretty cheap. I'll link to these on Amazon. Once you get a new one of these, just make sure the positive side is down and then this can just kind of pop back into place. There's not really any big overhangs anywhere here. Once you pop that back into place, just reassemble the internal piece here, like so it kind of snaps back together

You can kind of check, make sure the light is lighting up. If you've got a light on yours and go ahead and put it back into the outer shell case. And then when you're reassembling this, there is a lip at the top. And if you kind of line up the lip first, like so it will make getting this and snapped into place just a lot easier because there's really nothing here at the base that holds anything together except for the little baby screw, which you can now screw back in and you're done. So that's how you change the battery.

The key battery in a Honda Odyssey from 2005 to 2010. And again, the battery that you need is a CR 1616.

Overview of Honda Odyssey

Honda Odyssey’s first generation was not sold in the American market until 2005 when it was introduced into the market. As such, the first model of the Odyssey in the American market was the second generation that was introduced into the market in 2005.

Second Generation (2005 – 2008)

The Honda Odyssey was introduced in the North American market in 2005. The model featured an all-new re-engineering that was the benchmark of the minivan segment in the industry. It featured advanced safety equipment with a particular focus on the model’s interiors. It featured full-sized second-row captain’s chairs to enhance users’ comfort while providing more cargo space. It featured a V6 3.5 L gasoline engine with a power output of 255 hp at 5750 rpm when accompanied with multipoint injection transmission.

Third Generation (2008 – 2011)

In the second generation, the Odyssey received a facelift defined by significant interior and exterior styling. It featured a more fuel-efficient engine and was available in more new colors and different instrument panel textures as compared to the predecessor. The seats’ design also incorporated more premium fabric for a more executive look. Some of the exterior upgrades included additional storage bins for the second-row PlusOne Seat that was standard for the EX-L and Touring models. This model’s generation also retained the 3.5L V6 engine with similar power output.

Fourth Generation (2011 – 2017)

In 2011, Honda gave its biggest minivan a new facelift that was introduced in the Chicago Auto Show. The minivan continued to register impressive sales with over 100,000 sales in the North American market up to 2017. The 2011 model featured a new interior and exterior features including HID Xenon bulbs, new headlights, 18-inch light allow wheels, and a new infotainment package. Some of the entertainment features that were introduced during the generation included a split-screen rear-seats DVD entertainment system. The multi-zone climate zone control system was offered as an option for higher trims. The car, however, was only available with front-wheel-drive functionality (FWD). The model featured a 3.5 L V6 engine with less power of 251.4 HP at 5700 rpm when coupled with multipoint injection and s-speed auto transmission. The model had an estimated fuel economy of 18 mpg for city driving and 27 mpg in city driving.

Fifth Generation (2017 – Present)

In 2017, the fourth generation of the Honda odyssey for the American market was introduced. It included an improvement in technology and design to meet the needs of the changing market segment. Some of the new upgrades included a new CabinWatch and CabinTalk, a new rear entertainment system, new magic slide second-row seats, and an improved audio touchscreen. Other prominent features included the manufacturer’s signature flying wing front grille that was accompanied by LED front and taillight. The model featured a V6 3.5 L gasoline engine with a horsepower of 283.9 hp at 6000 rpm and a torque of 262 lb-ft.

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