GMC Sierra 2500HD / 3500HD key replacement and programming
Heavy-duty Sierras follow the 1500’s key path, and work trims often keep a flip key even in newer model years.
Sierra 2500HD / 3500HD key systems by model year
Year ranges follow Sierra 2500HD / 3500HD generations and are approximate. Trim, build date and factory options can change the system within a year, so we confirm it from your VIN before dispatch.
2001–2006Passlock-style systems
Metal key with a separate remote; anti-theft type depends on build.
2007–2014Transponder-chip keys
Transponder key with a separate remote.
2020–presentFlip keys
Flip key on many trims; proximity key on upper trims.
Lost every Sierra 2500HD / 3500HD key?
If no working key remains, we can program a new key at the vehicle for many GMC trucks and SUVs. Newer vehicles on GM’s newer electrical architecture can take more steps and some may need dealer involvement. We confirm from your VIN before dispatch.
GMC Sierra 2500HD / 3500HD locksmith services
What to send for a Sierra 2500HD / 3500HD key quote
- Model year, from the registration or title
- Turn-key ignition or push-button start
- Whether any working key remains
- A photo of the key or ignition, if you have one
We program Sierra 2500HD / 3500HD keys on site in Burbank, North Hollywood and the surrounding neighborhoods. North Hollywood service area
Important compatibility notice — final key compatibility must be confirmed
The key images, vehicle models, and year ranges shown on this page are provided as a general identification guide and may not apply to every vehicle. The manufacturer may use different key systems within the same model year depending on trim level, production date, manufacturing location, ignition type, and factory equipment. Final compatibility must be confirmed using the vehicle’s VIN, ignition type, existing key or fob, and vehicle information before service. The images are representative examples and do not guarantee an exact visual match.
A current registration or title and matching government-issued photo identification must be verified before automotive key, lock, or immobilizer service is performed.