Honda Crosstour key fob battery
4 of the 6 model years listed for the Honda Crosstour have a proven battery. The most common answer is CR1616. Rows below run oldest to newest; a year can appear twice when the car came with more than one kind of key.
- 2010-2011Key-head remote
Not confirmed yet
- 2010-2012Smart key
Not confirmed yet
- 2012Key-head remote
CR1616
Owner's manual: manualmachine.com (checked Nov 1, 2026)
Manual text: “Battery type: CR1616”
Find CR1616 on Amazon - 2013-2014Key-head remote
CR1620
FCC ID MLBHLIK6-1TTwo sites agree: uhs-hardware.com and americankeysupply.com (checked Nov 1, 2026)
Find CR1620 on Amazon - 2013Smart key
Not confirmed yet
- 2014-2015Smart key
CR2032
Two sites agree: bestkeysupply.com and americankeysupply.com (checked Nov 2, 2026)
Find CR2032 on Amazon - 2015Key-head remote
Not confirmed yet
Changing the battery
Key with remote in the head
- This type has the buttons built into the key head. The cell is inside that head, between two clipped halves.
- Many key heads split along the side seam. Start at the small notch and pry a little at a time.
- The coin cell is usually under or on the back of a small board. Keep the rubber button pad in place while you swap the cell.
- Press the head together until it clicks and test the buttons. The transponder chip that lets the car start is separate from the battery, so starting should not change.
A CR1616 is 16 mm across and 1.6 mm thick. It is easy to confuse with the 20 mm CR20xx sizes, which will not fit.
A CR1620 is 16 mm across and 2.0 mm thick. It is easy to confuse with the 20 mm CR20xx sizes, which will not fit.
Smart key (push-button start)
- Start by freeing the hidden metal key: there is a latch or slide on the case, and the blade comes out once it moves.
- Look inside the empty key slot for a notch. Put the tip of the metal key or a small flat screwdriver wrapped in tape there and twist gently until the shell splits.
- Note which side of the old coin cell faces up (usually the side with the writing), lift it out with a plastic tool, and press the new one in the same way.
- Snap the halves back together, slide the metal key home, and press each button, then try the start button from the driver's seat.
Honda smart keys typically have a release lever for the built-in key. Twist a coin or the key tip in the slot it exposes to split the case.
A CR2032 is 20 mm across and 3.2 mm thick. CR2032, CR2025 and CR2016 share the same width but not the same thickness, so a swap between them can leave a loose contact or a case that will not close.
Coin cells are a choking and burn hazard for children. Store the spares in their original pack, out of reach.