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Toyota Sequoia Key Replacement
Toyota Sequoias have been on Dallas–Fort Worth roads since the 2001 era, and across 4 key generations this model has used 2 different key systems — transponder (cut); smart / proximity. Whichever yours is, DFW Keys 4 Cars cuts and programs it at your location, 24/7: spare keys, lost-everything replacements, fob programming, and lockouts. Call (214) 717-6398.
About Sequoia Keys
The table below is our verified key reference for the Toyota Sequoia — model years, key types, and the transponder/immobilizer family each generation uses. Generations overlap at boundary years, and trim levels (keyed vs. push-to-start) can differ within the same year, so we always confirm the exact part by VIN before dispatching.
| Model / Generation | Years | Key Type | Transponder / Immobilizer | Blade / FCC |
|---|---|---|---|---|
| Sequoia | 2001–2002 | Transponder (cut) | Texas 4C (non-crypto) | TOY43 |
| Sequoia | 2003–2009 | Transponder (cut) | Texas 4D67 “Dot” (DST40) | TOY43 |
| Sequoia | 2010–2022 | Smart / proximity | DST80 “G” (HYQ14FBA) | TOY51 (insert) |
| Sequoia | 2023+ | Smart / proximity | DST-AES (HYQ14FBX) | TOY51 (insert) |
Security System & Immobilizer
Toyota’s immobilizer evolved through four transponder families — Texas 4C on 90s cars, the 4D67 “dot” chip, the DST80 “G” chip, and today’s 128-bit “H” chip — before the Smart Key System brought push-to-start proximity fobs. Each family needs different programming procedures, which our equipment covers end to end.
On the Sequoia specifically, the immobilizer families we see are: Texas 4C (non-crypto), Texas 4D67 “Dot” (DST40), DST80 “G” (HYQ14FBA), DST-AES (HYQ14FBX). A key that is cut correctly but not programmed to this system will turn the locks and never start the engine — programming is the half of the job that matters.
Which key does your year have?
- 2001–2002: Transponder (cut) — Texas 4C (non-crypto) (TOY43)
- 2003–2009: Transponder (cut) — Texas 4D67 “Dot” (DST40) (TOY43)
- 2010–2022: Smart / proximity — DST80 “G” (HYQ14FBA) (TOY51 (insert))
- 2023+: Smart / proximity — DST-AES (HYQ14FBX) (TOY51 (insert))
Our Sequoia Key Services
- Key replacement — lost, stolen or broken Sequoia keys cut from code and programmed on-site, including all-keys-lost by VIN
- Spare key duplication — the cheap insurance; most Sequoia spares are done in one short visit
- Fob & transponder programming — remotes, fobiks and smart keys paired to the immobilizer, including proximity fobs
- Lockout service — damage-free entry when the keys are inside, 24/7
- Ignition repair — worn cylinders and keys that won’t turn
Toyota Sequoia Key FAQ
I lost the only key to my Sequoia. What now?
We come to the vehicle, verify ownership, cut a new key from the VIN, and program it on-site. No tow, no dealer wait — this is our most common Sequoia call.
My Sequoia is push-to-start. Can you really program that outside the dealer?
Yes. Late-model Sequoias (2023+) use a proximity smart key on the DST-AES (HYQ14FBX) system — our trucks carry the fobs and the programmer. We cut the emergency blade too.
My Sequoia is older — do you still stock keys for it?
Yes. We carry blanks and chips going back to the 2001–2002 generation (transponder (cut)), and a code-cut fresh key usually turns a worn lock better than any copy of your worn key.
How fast can you reach my Sequoia in DFW?
We dispatch the nearest mobile unit across the whole metroplex, 24/7. Call (214) 717-6398 with your location and we’ll give you an honest ETA.