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GMC Sierra Key Replacement
GMC Sierras have been on Dallas–Fort Worth roads since the 1998 era, and across 10 key generations this model has used 7 different key systems — vats / passkey anti theft system; mechanical / non-transponder; transponder (remote-head also offered); transponder philips crypto 2 / hitag 2 / id46 ⇆ pcf7936 / xt27a / t14 / jma tp12gm. 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 Sierra Keys
The table below is our verified key reference for the GMC Sierra — 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 |
|---|---|---|---|---|
| GMC SIERRA | 1998-2006 | VATS / PassKey Anti Theft System | ||
| Sierra 1500 | 1999–2006 | Mechanical / non-transponder | VATS-PassKey / PassLock (resistor pellet, no chip) | B102 / B106 |
| Sierra 1500 | 2007–2013 | Transponder (remote-head also offered) | Philips Crypto 2 / Hitag2 / ID46 (PCF7936) | B111 (HU100) |
| GMC SIERRA | 2007-2013 | Transponder Philips Crypto 2 / Hitag 2 / ID46 ⇆ PCF7936 / XT27A / T14 / JMA TP12GM | ||
| Sierra 1500/2500/3500 | 2014–2019 | Flip key (with transponder) | Hitag2 Extended / ID46E (PCF7937E) | B119 (HU100) — FCC M3N-32337100 |
| GMC SIERRA | 2014-2019 | Transponder Hitag 2 Ext / ~ID46, ID46E / NXP PCF7952E, PCF7937E | ||
| Sierra 1500 | 2019–2021 | Smart-proximity (PEPS) | Hitag2 Extended / ID46E (PCF7937E) | emergency blade — FCC HYQ1EA |
| GMC SIERRA | 2019+ | Transponder Hitag 2 Ext / ~ID46, ID46E / NXP PCF7952E, PCF7937E | ||
| Sierra 2500/3500 HD | 2020–2024 | Smart-proximity (PEPS) | Hitag2 Ext / ID46E (earlier) → ID49 (later) — confirm by VIN | emergency blade — FCC HYQ1EA / HYQ1ES |
| Sierra 1500 (Global B) | 2022–2024 | Smart-proximity (PEPS) | NXP HITAG-Pro / ID49 (NCF29A1) | emergency blade — FCC YG0G21TB2 |
Security System & Immobilizer
GMC trucks follow GM’s security ladder — VATS, PassLock, PK3/PK3+ transponders, ID46 Circle+ keys, and modern proximity fobs — each with its own programming path our equipment covers.
On the Sierra specifically, the immobilizer families we see are: VATS-PassKey / PassLock (resistor pellet, no chip), Philips Crypto 2 / Hitag2 / ID46 (PCF7936), Hitag2 Extended / ID46E (PCF7937E), Hitag2 Ext / ID46E (earlier) → ID49 (later) — confirm by VIN, NXP HITAG-Pro / ID49 (NCF29A1). 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?
- 1998-2006: VATS / PassKey Anti Theft System
- 1999–2006: Mechanical / non-transponder — VATS-PassKey / PassLock (resistor pellet, no chip) (B102 / B106)
- 2007–2013: Transponder (remote-head also offered) — Philips Crypto 2 / Hitag2 / ID46 (PCF7936) (B111 (HU100))
- 2007-2013: Transponder Philips Crypto 2 / Hitag 2 / ID46 ⇆ PCF7936 / XT27A / T14 / JMA TP12GM
- 2014–2019: Flip key (with transponder) — Hitag2 Extended / ID46E (PCF7937E) (B119 (HU100) — FCC M3N-32337100)
- 2014-2019: Transponder Hitag 2 Ext / ~ID46, ID46E / NXP PCF7952E, PCF7937E
- 2019–2021: Smart-proximity (PEPS) — Hitag2 Extended / ID46E (PCF7937E) (emergency blade — FCC HYQ1EA)
- 2019+: Transponder Hitag 2 Ext / ~ID46, ID46E / NXP PCF7952E, PCF7937E
- 2020–2024: Smart-proximity (PEPS) — Hitag2 Ext / ID46E (earlier) → ID49 (later) — confirm by VIN (emergency blade — FCC HYQ1EA / HYQ1ES)
- 2022–2024: Smart-proximity (PEPS) — NXP HITAG-Pro / ID49 (NCF29A1) (emergency blade — FCC YG0G21TB2)
Our Sierra Key Services
- Key replacement — lost, stolen or broken Sierra keys cut from code and programmed on-site, including all-keys-lost by VIN
- Spare key duplication — the cheap insurance; most Sierra 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
GMC Sierra Key FAQ
I lost the only key to my Sierra. 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 Sierra call.
My Sierra is push-to-start. Can you really program that outside the dealer?
Yes. Late-model Sierras (2022–2024) use a proximity smart key on the NXP HITAG-Pro / ID49 (NCF29A1) system — our trucks carry the fobs and the programmer. We cut the emergency blade too.
My Sierra is older — do you still stock keys for it?
Yes. We carry blanks and chips going back to the 1998-2006 generation (vats / passkey anti theft system), 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 Sierra 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.