GMC Sierra Key & Key Fob Replacement San Antonio
GMC Sierra Locksmith San Antonio
S.A. Locksmith & Security provides professional GMC Sierra key and key fob replacement in San Antonio, Texas and surrounding areas including Alamo Heights, Stone Oak, The Dominion, Helotes, Converse, Schertz, Cibolo, New Braunfels, and Boerne. As a licensed and insured mobile locksmith, we come directly to your location — home, work, or roadside — for fast, same-day service. Our technicians use GM Tech2 and SPS diagnostic programming tools to cut and program your GMC Sierra key at a fraction of dealership pricing. Available 24/7 for emergencies. Call (210) 348-3677 for a free quote.
Licensed (LIC# B18010), insured, and BBB A+ rated, S.A. Locksmith & Security has been serving San Antonio since 2009. We back all work with a 90-day warranty on parts and labor plus manufacturer warranty on all hardware. Our no-damage guarantee means your vehicle is always safe in our hands. With response times under 20 minutes throughout San Antonio, we’re your fastest alternative to the dealership — at a fraction of the cost.
GMC Sierra Key & Key Fob Replacement San Antonio
S.A. Locksmith & Security provides professional GMC Sierra key and key fob replacement and programming services in San Antonio, Texas. Our certified automotive locksmiths specialize in GM No Immobilizer (1988-1998) / Passlock II (1999-2006) / Passkey III+ (PK3+) Philips 46 Encrypted (2007-2013) / EK3 Philips 46 (2014-2018) / GM Proximity Hitag 3 AES (2019+) systems, offering complete key cutting, transponder programming, and smart key fob replacement for all Sierra model years (1988-Present). We serve San Antonio, New Braunfels, Schertz, Cibolo, and surrounding areas.
GMC Sierra Technical Specifications
- Year Range: 1988-Present
- Engine: 4.3L V6 / 4.8L/5.3L/6.0L/6.2L V8 EcoTec3 / 6.6L Duramax V8 Diesel / 3.0L Duramax I6 Diesel
- Fuel: Gasoline / Diesel / Flex-Fuel
- ECU / Computer: AC Delco E38 (V8 pre-2014) / AC Delco E92 (EcoTec3 V6/V8 2014+) / AC Delco E78 (6.0L) / Bosch EDC17CP18 (LML/LMM 6.6L Duramax)
- Immobilizer: No Immobilizer (1988-1998) / Passlock II (1999-2006) / Passkey III+ (PK3+) Philips 46 Encrypted (2007-2013) / EK3 Philips 46 (2014-2018) / GM Proximity Hitag 3 AES (2019+)
- Key Type: Standard Key (1988-2006) / Transponder Key B111-PT (2007-2013) / Transponder Key B119-PT/HU100 (2014-2018) / Smart Key Fob HU100 (2019+)
- Key Blank + ILCO: P1107/B89 / P1113/B102 / B111-PT / B119-PT / HU100 — ILCO: P1107/B89[-P] / P1113/B102[-P] / B111-PT / EK3P-B111 / B119-PT / EK3P-HU100
- Transponder Chip: None (1988-2006) / Philips 46 Encrypted (2007-2018) / Hitag 3 AES (2019+ Proximity)
- Start Method: Turn Key (1988-2018) / Push-Button Start (2019+)
GMC Sierra Key & Fob Services
- GMC Sierra Key Cutting
- GMC Sierra Key Programming
- Key Fob Replacement
- All Keys Lost Solutions
- Emergency Lockout 24/7
- Ignition Repair
- GM VATS/Passlock/Passkey Reset
- Mobile Service — San Antonio area
GMC Sierra ECU & Module Services
The GMC Sierra uses the AC Delco E38 (V8 pre-2014) / AC Delco E92 (EcoTec3 V6/V8 2014+) / AC Delco E78 (6.0L) / Bosch EDC17CP18 (LML/LMM 6.6L Duramax) engine control unit. S.A. Locksmith & Security offers comprehensive ECU and module services for the Sierra.
- ECU / ECM Cloning & Replacement
- TCM (Transmission Control Module) Service
- BCM (Body Control Module) Programming
- Immobilizer Module Service & Reset
- VIN Programming & Module Initialization
- Key Programming & Re-learn Procedures
- GM Anti-Theft System (VATS/Passlock/Passkey) Bypass & Reset
- Instrument Cluster / Airbag Module Service
Why Choose S.A. Locksmith for Your GMC Sierra?
- Licensed & Insured Texas Locksmith
- GM-Certified Programming Equipment
- 24/7 Emergency Mobile Service
- Same-Day Service Available
- OEM & Aftermarket Key Options
- Competitive Pricing — 30-50% Less Than Dealer
Other GMC Truck Key Replacement Products
GMC Sierra Key & Key Fob Replacement FAQ
Pricing depends on year and key type: standard keys $65-$120, transponder keys $120-$180, smart key fobs $200-$350. Call (210) 348-3677 for your exact Sierra quote.
Yes! S.A. Locksmith & Security handles all-keys-lost situations for GMC Sierra models with Passlock, PK3, PK3+, and proximity key systems.
Most Sierra key replacements are completed in 30-60 minutes on-site with our mobile service.
Yes, we program all GMC Sierra key fobs, remotes, and smart keys. We carry OEM and aftermarket options.
Yes, typically 30-50% less than GMC dealer pricing with faster turnaround and convenient mobile service throughout San Antonio.
Request a Locksmith
S.A. Locksmith & Security is a full-service, 24/7 locksmith located in San Antonio serving the greater SA area. No project is too big or too small.
We Accept All Major Credit Cards
- 24/7 Emergency Service — day or night
- Licensed & Insured — Texas DPS License #B17236
- Free Estimates — transparent pricing
- 15-Minute Response — fast arrival
- Satisfaction Guaranteed — 90-day warranty
Note: Pricing and availability may vary. Smart key programming requires professional equipment. Some services may require vehicle VIN verification. All work is backed by our 90-day warranty on parts and labor and manufacturer warranty on hardware. S.A. Locksmith & Security — Licensed (LIC# B18010), Insured, BBB Accredited (A+ Rating). 11401 West Ave, San Antonio, TX 78213. All brand names, logos, and trademarks are the property of their respective owners. S.A. Locksmith & Security is an independent locksmith service provider and is not affiliated with any automobile manufacturer or dealership. 10% Military & Veteran Discount — show valid military ID at time of service.
Need GMC Sierra Key or Key Fob Replacement in San Antonio?
Contact S.A. Locksmith & Security for professional GMC Sierra key and key fob replacement. 24/7 emergency service.
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“Fast, professional, and fair pricing. Best locksmith in San Antonio!” — Maria G.
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