Scion FR-S key fob battery
1 of the 4 model years listed for the Scion FR-S have a proven battery. The most common answer is CR1632. Rows below run oldest to newest; a year can appear twice when the car came with more than one kind of key.
- 2013Smart key (electronic key)
CR1632
Owner's manual: manua.ls (checked Nov 1, 2026)
Manual text: “Electronic key battery ... Lithium battery CR1632”
Find CR1632 on Amazon - 2014-2016Key-head remote
Not confirmed yet
- 2014Smart key (electronic key)
Not confirmed yet
- 2015-2016Smart key
Not confirmed yet
Changing the battery
Smart key (push-button start)
- Most push-button fobs hide a metal backup key. Press or slide its catch and draw the key out first.
- The gap left by the metal key usually has a pry point. A slow twist with a thin flat tool (tape on the tip saves the plastic) opens the two halves.
- Before you take the old cell out, look at its face. Put the new cell in with the same side showing, and avoid touching both faces at once.
- Close the case until it clicks all the way round, put the metal key back, then try the buttons and a push-button start.
A CR1632 is 16 mm across and 3.2 mm thick. It is easy to confuse with the 20 mm CR20xx sizes, which will not fit.
Keep spare coin cells away from small children. A swallowed coin cell can burn the throat within hours; if it happens, go to an emergency room at once.