The 2025–2026 Highlander uses the same key setup, so everything on this page applies to those years too. The full picture is on the Toyota Highlander key guide.

2026 Toyota Highlander: key facts

Key type: Smart / proximity key
Push-to-start: Yes
Transponder chip: Varies by trim — we confirm by VIN
Programming: Confirmed per vehicle — call us
All keys lost: Depends on trim — call to confirm

transpondery.com lists a switch to NXP Hitag-AES 4A-BA smart keys for 2025-2026, but we have not found a second source and aftermarket fob listings for adjacent years still show 8A-family chips — we identify the system from the fob in hand. Aftermarket support for Toyota 4A systems is still maturing — all-keys-lost may require Toyota server access or dealer service, and we confirm current tool coverage before quoting.

Same key system as the 2025–2026 Highlander

Toyota kept the Highlander's key system unchanged across 2025–2026, so everything about replacing a 2026 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 Highlander 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.

2026 Toyota Highlander key replacement

2026 Toyota Highlander: key facts

Same key system as the 2025–2026 Highlander

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