Toyota Yaris key fob battery
1 of the 13 model years listed for the Toyota Yaris have a proven battery. The most common answer is CR2016. Rows below run oldest to newest; a year can appear twice when the car came with more than one kind of key.
- 2007-2014Key-head remote
Not confirmed yet
- 2015Key-head remote
CR2016
FCC ID HYQ12BBYTwo sites agree: uhs-hardware.com and bestkeysupply.com (checked Nov 2, 2026)
Find CR2016 on Amazon - 2016-2018Key-head remote
Not confirmed yet
- 2019Key-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.
- Work a thin flat tool into the seam near the blade and twist; go round slowly if it does not open at once.
- 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.
- Close the head, check there is no gap, and try the buttons.
A CR2016 is 20 mm across and 1.6 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.