GMC Sierra 1500 Key Replacement
The Sierra 1500 is our highest-volume GMC service call — contractor jobsite key loss in Ballantyne and Uptown Charlotte construction zones runs year-round. A forklift over a work jacket at quitting time is a real Tuesday-morning call, and we carry the blanks.
The Sierra 1500 changed key systems once across this generation span. K2XX (2014–2018) uses a remote key fob with no push-to-start on base SLE trim. The T1XX generation launched at 2019 moved all trims to a smart proximity key — first HYQ1EA, then YG0G21TB2 starting at 2022. AT4 and base trims use the same FCC ID as Denali within each T1XX year — no trim-level split after 2018. Sierra K2XX Denali with push-to-start uses different key hardware from the standard SLE/SLT remote; verify by VIN before ordering blanks on any 2014–2018 Denali.
Key types by year — GMC Sierra 1500
| Years | Key type | FCC ID | Starting price |
|---|---|---|---|
| 2014–2018 | Remote key fob (K2XX — push-button keyless entry) | M3N32337100 | $175 |
| 2019–2021 | Smart proximity key (push-to-start, all trims including AT4 and Denali) | HYQ1EA | $220 |
| 2022–2024 | Smart proximity key (push-to-start, updated T1XX hardware) | YG0G21TB2 | $220 |
- 2014–2018: K2XX generation. Denali trims with push-to-start use different key hardware — verify by VIN.
- 2019–2021: T1XX generation. All trims — SLE, SLT, AT4, Denali — use HYQ1EA. No trim-level key split.
- 2022–2024: Not interchangeable with HYQ1EA blanks. AT4 and base trims use same key as Denali. 2022 is a transition year — verify by part number on early 2022 builds.
What you get
- New remote key (flip key) cut to your GMC Sierra 1500
- Mechanically cut from your vehicle's lock or VIN
- No towing required — we come to your location anywhere in Charlotte / Lake Norman
- Quote confirmed before work begins · no hidden fees
- NASTF-certified for secure GMC key programming
Common issues we see with GMC Sierra 1500 in Charlotte
- T1XX smart key (2019+) requires bi-directional programming — no at-home DIY option. Factor a full locksmith visit.
- K2XX fob (2014–2018) can be self-programmed if you still have at least one working key. All-keys-lost requires professional equipment.
- AT4 off-road trim owners sometimes expect a different key than base trim — both use HYQ1EA (2019–2021) or YG0G21TB2 (2022+). No AT4-specific blank.
- Contractor key loss — fobs go through wash cycles, get buried in tool bags, or fall into job-site excavations. AT4 and base work-spec trucks see the highest loss rates.
Why not the GMC dealer?
Randy Marion Buick GMC (Huntersville, ~15 min from Cornelius) quotes $300–$400 for T1XX smart key replacement with programming. We program on-site same day.
How it works
- 1Call usWe confirm your GMC Sierra 1500 year and key type over the phone — usually takes 60 seconds and prevents any wasted trip.
- 2We dispatch a mobile unitOur technician arrives in 15-30 minutes with all equipment pre-staged for your vehicle.
- 3On-site cutting & programmingNew key cut, programmed, and tested. Typical time for GMC Sierra 1500: 30–40 min for K2XX M3N32337100 remote fob; 45–60 min for T1XX smart key (HYQ1EA/YG0G21TB2).
- 4Drive awayYou pay only after the new key works — no surprise charges.
Other GMC models we service
Where we service GMC Sierra 1500 keys
We cover Charlotte, Lake Norman, and surrounding towns — no tow, no dealer wait. Click your city for local pricing and response times.
