2014–2019 Toyota Corolla Key Fob Battery Type and Replacement

Which Toyota Corolla model years does this cover?

These key fob battery specifications apply to every Toyota Corolla built from 2014 through 2019 — the E170 (11th generation), compact sedan. Nothing in this specification changes between those model years. Pick your year for the engines it offered, what changed that year, and the problems recorded against it.

What changed during the 2014–2019 Toyota Corolla

• 2014Generation launch; LED low beams standard on all trims; CVT replaces the 4-speed auto on most trims (4AT lingers on base L through 2016); LE Eco with 140-hp Valvematic 2ZR-FAE added
• 2016Oil filter changes from cartridge (04152-YZZA6) to spin-on (90915-YZZF2) per Toyota's filter application chart; Special Edition trim with 17-in wheels
• 2017Facelift: new fascias, standard Toyota Safety Sense-P (auto emergency braking) on all trims, S trims replaced by SE/XSE, XLE added, bi-LED headlights on upper trims
• 2019Final E170 sedan year (the 2019 Corolla Hatchback is already the new E210 platform)

What battery does the 2014–2019 Toyota Corolla key fob take?

A single CR2032 (smart key, 2014–2019); basic remote-head keys also take a coin cell. Check the old battery coin cell.

Can you use a CR2032 instead of a CR2025 in a 2014–2019 Toyota Corolla key fob?

This fob takes a CR2032 (smart key, 2014–2019); basic remote-head keys also take a coin cell. Check the old battery, so start there. The two cells share a 20 mm diameter but differ in thickness, and the thicker one does not always seat in a housing built for the thinner.

How do you open a 2014–2019 Toyota Corolla key fob?

Slide out the mechanical emergency key first, which usually releases a catch, then part the halves with a plastic pry tool or a coin wrapped in tape. A screwdriver will mark the case and can crack the seam.