Car Key Replacement
Losing a car key or dealing with a dead fob in San Antonio is more than a minor inconvenience — it can strand you in a parking garage on Commerce Street, outside a North Star Mall entrance, or in the middle of a long shift on the South Side. Pro San Antonio Locksmith dispatches trained, insured mobile technicians directly to your location, 24 hours a day, 7 days a week, so you never have to arrange a tow to a dealership or wait days for a mailed replacement. We cut, program, and test keys and fobs for virtually every make and model on the road today, all from a fully equipped service van.
Open 24 hours, 7 days a week · Licensed, bonded & insured
Car key replacement has changed dramatically over the past two decades. Modern vehicles from Ford, Toyota, GM, Honda, BMW, and dozens of other brands use transponder chips, proximity fobs, push-to-start smart keys, and rolling-code remote systems that require specialized equipment to program correctly. Our technicians carry professional-grade key-cutting machines and OBD programming tools that communicate directly with your vehicle's ECU, replicating the exact signal your car expects — no guesswork, no damage to your ignition or door locks, and no unnecessary trips.
What we do
Available 24/7
Day, night, weekends and holidays — a real local locksmith answers and rolls a fully-stocked van.
Fast local response
Based in San Antonio, we reach the San Antonio area in well under an hour.
Insured & background-checked
Vetted technicians, up-front pricing, and no surprise add-ons when we arrive.
Damage-free entry
We pick and bypass locks the right way, so most lockouts are solved without drilling anything.
More about our work
Everything you need to know about how we help — at a glance.
How We Handle Car Key Replacement by Vehicle Brand
Different automakers use different security architectures, and a one-size approach simply does not work. Toyota and Lexus vehicles — extremely common on San Antonio roads — rely on 4D, 4C, and 80-bit transponder chips depending on the model year, and many newer RAV4 and Camry trims use proximity smart keys that require two-way OBD II synchronization. Ford and Lincoln models, including the F-150 trucks that populate every highway and job-site parking lot in Bexar County, use PATS (Passive Anti-Theft System) transponders and, in newer trims, Intelligent Access fobs that must be coded to the BCM. GM vehicles — Chevrolet, GMC, Buick, Cadillac — span a wide range from older VATS resistor keys to current Gen 5 high-security blades paired with remote start modules.
Honda and Acura keys present their own challenge: many use an immobilizer that requires the technician to perform a pin-code read from the vehicle's ECU before a new key can be accepted. Dodge, Chrysler, and Jeep platforms use the Sentry Key system, which demands a specific seed-and-key exchange during programming. Luxury and European brands — BMW, Mercedes-Benz, Audi, Volkswagen — use rolling-code proximity fobs and, in some cases, encrypted key data that requires brand-specific software. Our technicians are equipped for all of these platforms. If you drive a motorcycle, pickup truck, or even a commercial fleet vehicle registered in San Antonio, call (210) 390-5422 and we will confirm compatibility before we roll.
Mobile Car Key Replacement: We Come to You Anywhere in San Antonio
One of the most practical advantages of our service is that we are fully mobile — our van is the workshop. Whether you are locked out of your car near the Pearl District, stranded in a parking structure off Loop 410, or stuck at home in Helotes or Converse, we come to you. There is no need to call a tow truck, no need to leave your vehicle unattended, and no need to schedule an appointment days out. We answer every call 24/7, including holidays, overnight hours, and weekend rushes when dealership service departments are closed.
A child locked in a car is one of the most urgent calls we receive, and it is treated as the highest priority dispatch. San Antonio summers regularly push temperatures well above 100°F, making a locked vehicle dangerous within minutes. Our technicians use non-destructive entry methods wherever possible to get the door open without damaging glass, weather stripping, or door panels. Once the vehicle is safe and the situation is resolved, we can immediately assess whether a replacement key or fob is needed and complete the work on the spot. For any locked-out emergency — car, truck, or SUV — (210) 390-5422 reaches a live dispatcher around the clock.
What Determines the Price of a Replacement Key or Fob
We never present a surprise bill. Before any work begins, our technician provides an exact, confirmed quote so you know precisely what you are agreeing to. Several factors shape that quote, and understanding them helps you know what to expect. The vehicle's make, model, and year matter most: a basic transponder key for an older Honda costs far less in parts and programming time than a proximity smart key for a late-model BMW or a push-to-start fob for a Cadillac Escalade. The time of day plays a role as well — overnight and holiday dispatches carry different rates than standard daytime calls. Travel distance within the greater San Antonio area is factored in for our mobile response. Finally, whether you need a single key, a spare set, or a full re-key of the ignition because all keys are lost affects both parts and labor. Whatever your situation, the price is confirmed upfront — always.
Beyond Auto Keys: Full Locksmith Services for San Antonio Homes and Businesses
While automotive work is a major part of what we do, Pro San Antonio Locksmith is also a full-service commercial locksmith and residential locksmith operating throughout the metro area. For businesses along San Antonio's busy corridors — from the Medical Center district to the warehouses near Port San Antonio — we install, repair, and re-key mortise lock hardware, the heavy-duty cylindrical lock assemblies used in commercial doors throughout office buildings, retail storefronts, and industrial facilities. A mortise lock is built into the door itself rather than surface-mounted, making it significantly more resistant to forced entry, and correct installation requires precision fitting that our experienced technicians provide without damaging the door frame.
We also service door knob lock replacements and upgrades for homes and apartments, respond to home or business lockout calls with the same 24/7 urgency as automotive lockouts, and handle emergency locksmith situations where access must be restored immediately — a break-in, a damaged lock after a storm, or a key snapped off inside a commercial deadbolt. Our technicians are trained and insured, carry inventory of common lock hardware brands, and can advise on high-security upgrades suited to your specific door type. If you are a property manager, business owner, or homeowner in San Antonio wondering whether your locks match the threat level of your neighborhood, a quick call to (210) 390-5422 connects you with a technician who can walk you through your options.
Your Automotive Locksmith San Antonio — Cars, Trucks, and Motorcycles
Pro San Antonio Locksmith serves the full spectrum of personal and commercial vehicles registered across Bexar County and surrounding areas. Passenger cars, SUVs, full-size pickup trucks, box trucks, motorcycles, and light commercial vans all fall within our service scope. Motorcycle key replacement is a specialty many general locksmiths skip, but our technicians are equipped to cut and program keys for major brands including Harley-Davidson, Honda, Yamaha, and Kawasaki. Fleet managers whose vehicles operate out of distribution hubs near I-35 or I-10 can also coordinate multi-vehicle re-keying or spare-key duplication through our commercial locksmith program. Whatever you drive, and wherever you are in the San Antonio area, our mobile unit brings the solution to your location — no waiting room required.
Frequently asked questions
Answers to what our customers ask most. Still unsure? Just call.
Is there a 24-hour locksmith in San Antonio?+
Yes. Pro San Antonio Locksmith operates 24 hours a day, 365 days a year, including weekends and major holidays. When you call (210) 390-5422, a live dispatcher answers and routes the nearest available technician to your location, whether you are in downtown San Antonio, the Stone Oak area, or far out on the West Side. Response times vary by traffic and distance, but you will always receive an honest ETA before the technician departs.
How much does a car key replacement cost in San Antonio?+
There is no single flat rate because several variables determine the final price: the vehicle's make, model, and year; whether the key uses a basic transponder chip, a push-to-start proximity fob, or an older mechanical blade; the time of day the service is requested; the travel distance to your location; and whether you need one key or a complete re-key. Our technician confirms an exact price before starting any work, so you always know the full cost upfront with no hidden charges.
Where can I get a car key replaced in San Antonio without going to a dealership?+
Pro San Antonio Locksmith is a fully mobile alternative to the dealership for most makes and models. We carry professional key-cutting equipment and OBD-compatible programming tools that handle Toyota, Ford, GM, Honda, Dodge, BMW, Mercedes-Benz, and many other brands. We come to your location anywhere in the San Antonio metro, often completing the entire job in under an hour. For availability and compatibility confirmation, call (210) 390-5422 any time of day or night.
How much should locksmiths charge for their services?+
Pricing across the locksmith industry varies based on the type of service, the hardware or vehicle involved, time of day, and travel distance. Rather than comparing arbitrary price points, the most important thing to look for is a locksmith who provides a confirmed, itemized quote before any work begins and stands behind that number. At Pro San Antonio Locksmith, our technicians assess the job on-site and give you an exact price upfront — the amount quoted is the amount you pay.
What is a mortise lock and do you service them?+
A mortise lock is a heavy-duty lock mechanism installed inside a carved-out pocket (the mortise) within the door itself, rather than being surface-mounted like a standard knob or lever set. They are common in commercial buildings, older homes, and high-security residential doors throughout San Antonio. Because they are integrated into the door structure, installation, repair, and re-keying require precise fitting. Our trained technicians service, replace, and re-key mortise lock hardware for both residential and commercial clients across the San Antonio area.
What should I do if my child is locked in the car?+
If a child is locked inside a vehicle in San Antonio, call 911 immediately if the child is in distress or the interior temperature is rising — emergency services can respond very quickly. If the situation is urgent but the child is calm, call (210) 390-5422 simultaneously so our technician is already in route. We treat child-in-car calls as top-priority dispatches and use non-destructive entry techniques wherever possible to open the door without damage. Never leave a child unattended in a parked vehicle in San Antonio's heat, even for a short errand — interior temperatures can become dangerous in minutes.