The 2009–2012 ES uses the same key setup, so everything on this page applies to those years too. The full picture is on the Lexus ES key guide.

2012 Lexus ES: key facts

Key type: Smart / proximity key
Push-to-start: Yes
Transponder chip: DST40
Programming: OBD
All keys lost: We can originate new keys on site

HYQ14AAB 'E' board 3370 fob, DST40 chip — the board letter must match when replacing a fob. All-keys-lost via OBD smart-code reset with professional tools; older methods required smart-ECU work or dealer service.

Same key system as the 2009–2012 ES

Lexus kept the ES's key system unchanged across 2009–2012, so everything about replacing a 2012 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 Lexus ES 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 Lexus programming in general on our Lexus 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.

2012 Lexus ES key replacement

2012 Lexus ES: key facts

Same key system as the 2009–2012 ES

We cover all these cities