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2020–2025 E210 (12th generation)

2020–2025 Toyota Corolla Key Fob Battery Type and Replacement

The 2020–2025 Toyota Corolla key fob takes a CR2032 (smart key fob, all E210 years) coin cell. How to open the fob without breaking it, and which substitutions actually work.

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Quick answer

The 2020–2025 Toyota Corolla key fob takes a CR2032 (smart key fob, all E210 years) coin-cell battery, available at any pharmacy, hardware store, or online for a few dollars.

Replacing the 2020–2025 Toyota Corolla key fob battery

  • Pry the fob open gently at the seam with a small flathead screwdriver or a coin, working around the edge. Many fobs have a hidden release slot near the key ring or emergency-key blade.
  • Note the battery orientation (usually positive side up) before removing the old cell.
  • Avoid touching the new battery's faces with bare fingers; skin oils can shorten its life.
  • If the fob doesn't work after replacement, check that the battery is seated fully and the contacts weren't bent. Most vehicles do not need re-pairing after a battery change.

Which Toyota Corolla model years does this cover?

These key fob battery specifications apply to every Toyota Corolla built from 2020 through 2025 — the E210 (12th generation), compact sedan (tnga-c platform; the corolla hatchback, sold from 2019, shares this platform and most service parts). 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 2020–2025 Toyota Corolla

  • 2020Generation launch on TNGA-C: 1.8L (L/LE), 2.0L Dynamic Force (SE/XSE/XLE), and the first US Corolla Hybrid (LE, 121 hp combined). All-LED lighting, four-wheel discs, and LN-format batteries across the board.
  • 2021Android Auto joins Apple CarPlay as standard; minor equipment shuffles only
  • 2023Mid-cycle update: new fascias, 8-in touchscreen with Toyota's new multimedia system, Toyota Safety Sense 3.0; hybrid gains SE/XLE trims, available electronic on-demand AWD, and combined output rises to 134–138 hp; the 6-speed manual and the 2.0L Apex edition are dropped
  • 2024-2025Carryover years; hatchback continues alongside the sedan with the 2.0L only
  • 2024US L trim dropped; all remaining trims standard with automatic climate control, an 8-in touchscreen, and keyless entry; new GR Corolla-inspired front-end styling
  • 2025FX Special Edition trim debuts; a larger 10.5-in touchscreen becomes available

2020–2025 Toyota Corolla key fob battery: common questions

What battery does the 2020–2025 Toyota Corolla key fob take?

A single CR2032 (smart key fob, all E210 years) coin cell.

Can you use a CR2032 instead of a CR2025 in a 2020–2025 Toyota Corolla key fob?

This fob takes a CR2032 (smart key fob, all E210 years), 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 2020–2025 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.

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