The 2019 Honda Odyssey key fob typically uses a CR2032 3-volt lithium coin cell, which is the standard battery size for most Honda remotes from that era.
Battery specifications and compatibility
Below are the key details about the battery size, voltage, and how it fits the 2019 Odyssey fob.
- Battery type: CR2032 (3V lithium coin cell)
- Compatibility: This size covers most 2018–2020 Honda Odyssey remotes; regional variations may exist, so verify if your fob design differs.
- Notes: Using a smaller CR2025 or a misoriented battery can cause poor contact or non-functioning buttons; use the exact CR2032 size when replacing.
Bottom line: The CR2032 is the recommended battery for this key fob model.
How to replace the battery
When it's time to swap in a fresh coin cell, follow these steps to avoid damage to the fob.
- Use a small flat tool or coin to gently pry open the back cover, taking care not to scratch the fob.
- Remove the old battery, noting the orientation of the positive side (+) facing up.
- Insert a new CR2032 with the positive side facing up, ensuring it sits flat on the contacts.
- Reattach the back cover securely and test the fob by pressing a button to confirm operation.
Reassembling correctly helps preserve water resistance and button responsiveness.
Where to buy and cost considerations
CR2032 batteries are widely available at auto parts stores, supermarkets, electronics shops, and online retailers. Look for freshness and avoid expired stock. Compare prices, and consider buying a small pack if you want spares.
- Where to buy: auto parts stores, major retailers, Honda dealer parts counters
- What to ask for: “CR2032, 3V lithium coin cell” in a fresh batch
- Additional tip: If the fob continues to malfunction after replacement, the issue may be programming or a hardware fault requiring dealer service
Having a spare battery on hand can prevent a dead fob at inopportune times, but ensure you’re using the correct size and orientation.
Summary
For a 2019 Honda Odyssey key fob, the standard replacement battery is a CR2032 3V lithium coin cell. Replacing it is a straightforward DIY task with careful handling, and batteries are easy to source. If issues persist after replacement, consult a Honda dealership to confirm compatibility, programming, or potential fob faults.
What size battery does a 2019 Honda key fob take?
CR2032 2032
CR2032 2032 REMOTE KEY FOB BATTERY OEM Replacement Compatible with Honda 2013-2021+ Accord Civic Odyssey CR-V HR-V Fit Pilot Prox Smart Key Fob fits with FCC ID KR5V2X - (W. INSTRUCTIONS)
What size battery goes into a Honda Odyssey key fob?
This Honda Odyssey key fob is going to use replacement battery CR 2032. And I'll put a link in the description box of this video to where you can find these replacement batteries if you're in need.
Can I use a CR2032 instead of a CR2025 in a key fob?
Fit and Functionality:
However, if it's too tight or prevents the case from closing properly, it might be better to stick with the CR2025 to avoid damaging the key fob. In summary, you can use a CR2032 instead of a CR2025 as long as it fits properly in the battery compartment of your car key.
What battery goes in a 2019 Honda Odyssey key fob?
CR2032 3V
Compatible with 2014-2022 Honda Odyssey. Includes two (2) original BatteryGuru CR2032 3V car key batteries. Avoid a service appointment for a replacement battery.