The 2020–2022 Corolla uses the same key setup, so everything on this page applies to those years too. The full picture is on the Toyota Corolla key guide.

2021 Toyota Corolla: key facts

Key type: Flip key
Push-to-start: No
Transponder chip: H (128-bit DST-AES)
Programming: OBD
All keys lost: We can originate new keys on site

Base trims use an H-chip flip key (HYQ12BFB, OEM listings 2020-2021); SE/XLE/XSE smart-key cars use the HYQ14FBN fob on the NXP Hitag-AES 4A system (transpondery.com). For all-keys-lost on 2020+ smart-key cars, US jobs generally require Toyota server codes with locksmith-credentialed (LSID/NASTF VSP) TIS access; add-a-key with a working fob is less restricted.

Same key system as the 2020–2022 Corolla

Toyota kept the Corolla's key system unchanged across 2020–2022, so everything about replacing a 2021 key — blanks, programming, and what happens if every key is lost — matches the rest of that run. The full year-by-year breakdown lives in our Toyota Corolla key guide.

What drives the price is the key type, whether you still have a working key, and where the car is parked. There's more on Toyota programming in general on our Toyota key page.

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Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.

Last updated 2026-10-11.

2021 Toyota Corolla key replacement

2021 Toyota Corolla: key facts

Same key system as the 2020–2022 Corolla

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