Auto Locksmith Services in Bexar County & the Bexar County area
Getting locked out of your vehicle in the middle of a Bexar County afternoon — whether you're parked outside the Pearl, running errands near the Rim, or stuck in a lot off Loop 410 — is the kind of problem that stops your whole day. Bexar County Locksmith runs a 24/7 mobile car lockout service built for exactly these moments, sending trained, insured technicians directly to wherever your car is sitting. We come to you, work quickly, and use damage-free entry methods wherever the vehicle allows.
Open 24 hours, 7 days a week · Licensed, bonded & insured

From downtown San Antonio and the Medical Center to Alamo Heights, Stone Oak, Helotes, and the far reaches of the county near Converse and Universal City, our mobile team knows the roads and the parking realities of the area. This page walks you through what happens during a roadside lockout, the different vehicle key types we work with, on-site key cutting and programming, fob and ignition troubleshooting, and how we responsibly verify ownership before making any replacement key.
What we do
Cars, Trucks & Motorcycles
Mobile service for nearly any make and model driven around the Bexar County area.
Transponder & Fob Programming
We cut and program smart keys, transponder keys, and remote fobs on-site.
Ignition Repair
Stuck or worn ignition cylinders repaired or replaced without a dealership trip.
Cheaper Than the Dealer
Get a replacement key made locally for less than most San Antonio dealership quotes.
Locked Out of Your Car? Here's What Our Roadside Response Looks Like
When you call our car lockout service, the first thing we do is get your exact location, the year, make, and model of your vehicle, and a quick description of the situation — keys locked inside, keys lost entirely, or a key that snapped in the door or ignition. That information lets us dispatch the right technician with the right tools instead of sending someone twice. If you're on the shoulder of a highway or in a poorly lit lot, tell us; safety shapes how we approach the job.
Before we ever touch the door, a good technician asks a few practical questions: is there a spare key anywhere accessible, is a second door or the trunk unlocked, and can anyone else in your household reach a backup? These quick checks sometimes solve the problem faster than a tool ever could. When entry is genuinely needed, we use professional techniques designed to open the vehicle without damaging the paint, weatherstripping, or door mechanism whenever the car's design allows it — modern vehicles vary widely, and we'll tell you honestly if a particular model carries any risk.
As for what it costs, we never quote a flat mystery number. The final price depends on your vehicle type, the time of day, how far we travel to reach you, and whether any parts or a replacement key are involved. We confirm an exact, up-front price before any work begins, so there are no surprises when the door pops open. If you're stranded right now, call (210) 512-4768 — we answer 24/7 and can usually give you an honest arrival window on the spot.

Modern Vehicle Key Types and the Service Each One Actually Needs
Not every "car key" is the same, and the difference matters enormously for what a lockout or replacement involves. The oldest style is a simple mechanical cut key with no electronics — common on older trucks and economy models — which we can duplicate quickly from the lock cylinder or an existing key. Then there are transponder keys, which contain a chip that must communicate with the vehicle's immobilizer; cutting the blade alone won't start the engine unless the chip is also programmed to your specific car.
Beyond those, most vehicles from the last decade use remote head keys (the flip or fob-integrated blade with lock/unlock buttons) or full proximity smart keys that let you enter and start the car without inserting anything. Each step up in technology adds complexity — and different parts — to a replacement. A proximity system, for example, may require pairing the fob to the car and sometimes re-syncing the push-to-start receiver.
When you describe your vehicle to us, we can usually tell you which category your key falls into and what the job will require before we arrive. That's part of why we ask for the year, make, and model up front. Knowing whether you drive a chip-key sedan, a remote-start pickup, or a keyless-entry SUV lets us bring the correct blanks, chips, and programming equipment so the whole visit happens in one trip.

On-Site Transponder and Smart-Key Cutting & Programming
One of the biggest advantages of a mobile car lockout locksmith is that we bring the key-making shop to your driveway or parking spot. Our technicians carry cutting equipment and programming tools capable of producing and coding many transponder and smart keys right at the scene. That means for a lot of vehicles you don't need a tow, a dealership appointment, or a multi-day wait — we cut the blade and program the chip on site, then test it before we leave.
Programming is the step that trips up DIY attempts. A freshly cut transponder or fob has to be introduced to your car's onboard computer so the immobilizer recognizes it and allows the engine to start. We handle that pairing process, confirm the remote functions (lock, unlock, trunk, and panic where equipped), and verify the key both opens and drives the vehicle. If your car requires a security PIN or a proprietary procedure, we'll explain what's involved and whether it can be completed roadside.
There are limits, and we're upfront about them. A handful of newer or specialty models restrict key programming to manufacturer systems, and in those cases we'll tell you plainly rather than waste your time. But for the large majority of cars, trucks, and SUVs on Bexar County roads, on-site cutting and programming is a same-visit reality. Pricing for a new key depends on the key type, the parts required, and travel — and as always, we confirm the number before we start.

When a Key Fob Stops Working: Battery, Pairing, or Physical Damage
A fob that suddenly won't unlock your doors is frustrating, but the fix is often simpler than people fear. The most common culprit is a dead coin-cell battery inside the fob. If the buttons feel unresponsive and the range has been shrinking for a while, a fresh battery frequently brings the remote right back to life — and most fobs still have a hidden mechanical key blade so you're never fully locked out even when the electronics die.
If a new battery doesn't help, the issue may be pairing. Fobs can lose their sync with the vehicle after a battery change, a low car battery, or certain electrical events, and they need to be re-registered to the car's system. We can re-pair many fobs on site so the buttons and, where applicable, the push-to-start function work again. Water damage or a cracked circuit board, on the other hand, usually means the fob itself needs replacement rather than repair.
The trickiest scenario is a proximity fob that seems dead when you're already stranded. In that case we focus first on getting you into the car safely, then diagnose whether the problem is the fob, the battery, or something in the vehicle's receiver. If a replacement remote is the answer, we can often supply and program one at the same visit, and we'll walk you through the factors — key type, parts, distance — that determine the final quote before any work happens.

Ignition Trouble: When to Call a Locksmith and When to Call a Mechanic
Ignition problems fall into two broad camps, and knowing which one you're facing saves time and money. If the key won't turn, feels gritty, sticks halfway, or the ignition cylinder has worn to the point it accepts almost any wear-and-tear jiggle, that's typically a lock issue — squarely in a locksmith's lane. Worn tumblers, a bent key, or debris inside the cylinder are things we diagnose and often repair or replace on site, sometimes rekeying the new cylinder to match your existing keys.
If a key snaps off inside the ignition, don't force the broken piece deeper — that can jam the cylinder and turn a small job into a large one. We have extraction tools designed to remove broken key fragments without damaging the surrounding lock, and once it's out we can usually cut you a fresh working key on the spot. This is one of those situations where a careful professional is genuinely faster and cleaner than a driveway attempt with pliers.
On the other hand, symptoms like clicking with no crank, dashboard warning lights, dead electrical accessories, or a starter that spins without catching usually point to electrical or mechanical faults — battery, starter motor, wiring, or the immobilizer computer — which belong with a mechanic. We're honest about that line. If we arrive and determine the trouble isn't in the lock or key, we'll say so rather than sell you a part you don't need.

How We Verify Ownership Before Cutting a Replacement Key
Making a replacement key for a vehicle is a serious responsibility, and we treat it that way. Before we produce a new key or program a fob, we ask to see proof that the car is yours — typically a government-issued photo ID together with the vehicle registration, title, or insurance paperwork showing your name matched to the vehicle's VIN. This protects you as much as it protects everyone else on the road.
This step is standard practice for reputable mobile locksmiths, and we don't skip it even at three in the morning. If you're locked out and your documents are inside the car, we can still open the vehicle after reasonable verification so you can retrieve them, and then complete any key work once ownership is confirmed. We'll explain exactly what we need when you call so you're not caught off guard on arrival.
For company vehicles, fleet units, or a car titled to someone else, we may ask for additional authorization — a letter from the owner, fleet documentation, or the presence of the registered owner. It's a small amount of paperwork that keeps the whole process legitimate. When you're ready for a replacement key or you're stuck outside your car right now, call (210) 512-4768 and we'll tell you precisely what to have ready.

Brands We Service
We install, repair and rekey all major lock brands — from everyday deadbolts to high-security cylinders.
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Schlage
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Kwikset -
Medeco -
Emtek -
Baldwin -
Yale
Don’t see your brand? We service virtually every make — just call.
Reviews
What Bexar County & the Bexar County area Customers Say
“I have a 2008 535i and had issues with the DME. I did some research and found this place. I have a spare car in my shop for parts and brought both DME and asked for a clone from one to the other. Withing 2hours it was ready. Very professional. They will work in any European car. Will highly recommend this place.”
“S.A. Locksmith & Security did a wonderful job coming out in a timely manner and getting my 2015 Porsche Macan S with same-day service got it done in less than 2 hours put everything back together like nothing ever happened. I'm very happy with the service and am definitely recommending them for anybody who has a Porsche. The dealership wanted over a thousand dollars they got it done for less than half excellent job!”
“Samuel was very professional and courteous. Took about 50 minutes from. Start to finish!! I lost both sets of keys so I was devastated. They asked me ahead of time to send a picture of my fab to ensure they had them in stock, I was so relieved when it was exactly what the dealership sent me home with/ no ghetto fab yay!!. The dealership was going to charge me $600 & I would have to tow my truck over there. Kuddos and much thanks, was so happy to be on my way!”
“We got locked out of our house late last night. Called SA Locksmith & Security, and received a call from Andy within minutes. He was very professional and courteous. He headed to our location immediately with an arrival estimate. We were able to enter the premises prior to his arrival (he was only 4 minutes out). Andy was very understanding and thankful we were able to rectify our situation without further intervention. We will definitely use SA Locksmith & Security again if needed for any locksmith needs. Thank you Andy for being so friendly and understanding!!!”
“An absolute AMAZING experience here. Broke my Mercedes keys, called at-least 10 different shops on a Sunday to no avail until I called S.A. Locksmith - they did it right away, were very communicative, and got me a good key at a good price! PLEASE GO HERE, other shops in the local area will WASTE YOUR TIME!!!!!!”
Service area
Areas we cover around Bexar County
Based in Bexar County, we reach the Bexar County area fast — 24/7. Don’t see your street? Call us, we very likely cover it.
(210) 512-4768Frequently asked questions
How fast can you reach me for an emergency car lockout?
Because we run a mobile fleet across Bexar County, we're often near you already — whether you're downtown, in Stone Oak, or out toward Helotes. When you call we confirm your exact location and give you an honest arrival window on the spot. Our 24 hour car lockout service means it doesn't matter if it's rush hour or the middle of the night.
My child (or pet) is locked in the car — what should I do?
Treat this as an urgent emergency: if the child or pet is in distress or it's a hot day, call 911 first, then call us at (210) 512-4768 and tell us it's a child or pet lockout so we prioritize you. Bexar County summers get dangerously hot fast, and we respond to these calls as top priority. Stay with the vehicle and keep the child calm and visible while help is on the way.
Will opening my car cause any damage?
We use professional, damage-free entry methods wherever the vehicle's design allows, protecting the paint, weatherstripping, and door mechanism. Every car is built differently, and if a particular model carries any risk we'll explain it clearly before we begin. Our goal is to get you back in without leaving a mark.
Can you make a new key if I've lost all of mine?
Yes. Even with no working key at all, our technicians can often generate and program a new one on site by reading the vehicle's system, then cut and pair it to your car. This applies to many transponder and smart-key vehicles, so a lost-all-keys situation usually doesn't require a dealership or a tow.
What determines the price of a car lockout or replacement key?
The final quote depends on your vehicle type, the time of day, how far we travel to reach you, and whether any parts or programming are needed for a new key. A simple unlock and a smart-key replacement are very different jobs. We confirm an exact, up-front price before any work starts — no surprises.
Do you handle trucks, motorcycles, and keyless-start SUVs too?
Yes — our automotive service covers cars, trucks, motorcycles, and modern keyless-start vehicles. We carry the blanks, chips, and programming equipment for a wide range of makes and models common on Bexar County roads. Just give us the year, make, and model when you call so we arrive with the right tools.
What if I need a spare made before I ever get locked out?
Keeping a spare is the single best way to avoid a future lockout, and we're happy to cut and program a backup key or fob for you at a convenient time and place. Making a spare on your schedule is far less stressful than an emergency call. We verify ownership the same way and confirm the price before we start.
Do you require proof that the car is mine?
Yes. Before making a replacement key or programming a fob, we ask for a photo ID plus registration, title, or insurance showing your name and the vehicle's VIN. If your documents are locked inside, we can open the car after reasonable verification so you can retrieve them, then finish any key work once ownership is confirmed.