82nd Locksmith San Antonio, TX

Key Fob Replacement & Transponder Programming in San Antonio, TX

The era of inserting a mechanical metal key into an ignition is rapidly ending. Today, vehicles are operated by sophisticated proximity fobs that communicate via encrypted radio frequencies, allowing you to unlock the doors and start the engine while the key stays safely in your pocket or purse. However, when these advanced devices are lost, dropped in a puddle, or simply fail, you are entirely locked out of your car's computer system. We are San Antonio, TX’s leading specialists in key fob replacement. As a highly advanced car key locksmith, we bring the digital programming lab directly to you, replacing and syncing complex smart keys on-site.

Lost your push-to-start fob? We can program a new one today! Call us: 18884351439

Frequently Asked Questions

• If I buy a cheap key fob online, can you program it for me? While we can attempt to program aftermarket fobs purchased online, we strongly advise against it. Online fobs are notorious for having cheap, faulty microchips that fail to sync or drop their programming after a few weeks. We provide high-quality, OEM-equivalent fobs that come with a guarantee of functionality.
• What happens if someone steals my key fob? If your fob is stolen, call us immediately. We will perform a Digital Security Reset. We hook our computer up to your car, wipe the vehicle's memory of all previously programmed fobs, and then sync only the fobs currently in your possession. The stolen fob will be permanently deactivated.
• Can you program a fob for a car that has an aftermarket remote starter? Usually, yes. However, aftermarket remote starters splice into the vehicle's wiring harness and can sometimes interfere with standard OBD-II programming. Let our dispatcher know about the remote starter when you call so our technician is prepared.
• Why does my push-to-start car say the key is not detected even with a new battery? If the battery is brand new and inserted correctly, the fob may have "dropped" its programming, or the internal antenna inside the fob has broken from being dropped on the ground too many times. We can test the signal and either re-sync the fob or replace it entirely.