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Wilshire Lock & Key

24/7 locksmith · San Dimas, CA

Lost Car Key Replacement in San Dimas, CA

Lost every key to your car in San Dimas? Wilshire Lock & Key makes replacement car keys from scratch, no original needed, and programs them to your vehicle. We're available 24 hours a day, 7 days a week at (213) 577-1366. Have your registration and ID ready, and we'll confirm details by VIN.

  • Since 1987
  • Westwood storefront + mobile vans
  • A person answers, day or night
Inflatable wedge and reach tool opening a locked car door at night

What does it mean when you've lost all your car keys?

Losing one key is an annoyance. Losing all of them is a different problem, because you no longer have anything to copy from. A copy machine needs an original, and a car key made in the last couple of decades is more than a piece of cut metal. Most carry an electronic identity that the car has to recognize before it will start. When every key is gone, the car has nothing to compare against, and a new key has to be built and introduced to the vehicle from the ground up.

That is exactly what lost car key replacement is. We identify your vehicle, produce a key that fits its locks and ignition, and program it so the car accepts it. You don't need the original key, a spare, or the old fob. You need to be able to show the car is yours, and we'll walk you through that below.

People usually call us in one of a few situations. They set a key down somewhere and can't retrace their steps. A key fell out of a pocket in a parking lot. A spare was never made and the only key went missing with a bag or jacket. Or a rental, used purchase, or inherited car came with a single key and now it's gone. All of these end the same way: you need a working key made without an original, and you'd like it done by someone who will tell you plainly what your car requires.

Can you get a replacement car key without the original?

Yes, in most cases. A replacement car key without the original is routine automotive locksmith work. The key is generated using your vehicle's identifying information instead of a sample key. What varies from car to car is how much equipment and access that takes, and we say so up front rather than letting you find out halfway through.

Because this is a security-sensitive job, we verify ownership before making a key. That protects you. If a stranger could walk up and get a key to your car by asking, nobody's vehicle would be safe. Plan to have the following available:

  • A government-issued photo ID
  • Proof of ownership or authorized use, such as the registration, title, or a lease or rental agreement with permission
  • The vehicle's VIN, which is visible at the base of the windshield on the driver's side and on your registration or insurance card
  • The car itself, or at least access to it, since the new key must be programmed to that specific vehicle

Locked out or need a locksmith now?

We answer around the clock, every day of the year.

Call (213) 577-1366

How we handle lost car key replacement, step by step

The process is straightforward, and we explain each stage as it happens. Here is how a typical lost all keys job goes.

  1. You call (213) 577-1366. Someone answers any hour of the day or night. We ask for the make, model, and year, where the car is, and whether it is currently locked.
  2. We work out what type of key your vehicle uses. Year and trim matter, since two cars of the same model can use different key systems. Where the information we have is unclear, we confirm by VIN or by inspecting the car in person instead of guessing.
  3. A mobile van comes to the car. You don't have to tow it or move it unless there's a particular reason to. If the car is also locked, we deal with that first. Our separate car lockout service in San Dimas covers that part.
  4. We verify your identification and your connection to the vehicle.
  5. We obtain the key data for your car and cut or prepare the new key as the vehicle requires.
  6. We program the key to the car so the immobilizer accepts it. Then we test it thoroughly: door locks, ignition, trunk, and any remote functions that apply.
  7. If you'd like a second key, we make it in the same visit. Having a spare made while the equipment is already out is usually the more economical route compared with another lost key emergency down the road.

What kind of key does your car use?

Car keys fall into broad families, and knowing which one yours belongs to explains the job. We confirm the exact type for your vehicle by VIN or in person, because model-level generalizations can be wrong, and we would rather check than assume.

A basic mechanical key has no electronics and simply turns the lock. A transponder key looks similar but contains a chip that the car reads before allowing the engine to run. Some keys have a remote built into the head. Others are proximity or push-button start fobs, where the car detects the fob without a key being inserted. Each of these needs a different mix of cutting, programming, and sometimes added steps. You can read more about the programming side on our transponder key programming page, and about remotes and push-button fobs on our key fob replacement page.

We also need to be honest about limits. Some vehicles are tightly controlled by their manufacturer, and for certain makes, years, or situations the key data or programming access is available only through a dealer. When your car falls into that category, we'll say so on the phone or at the car, not after we've arrived and started billing for time. In those cases we explain your options, which may include arranging a tow to the dealer. We would rather give you a straight answer than promise something your car won't allow.

Locked out or need a locksmith now?

We answer around the clock, every day of the year.

Call (213) 577-1366

What affects the cost of lost car key replacement?

We don't quote numbers on a web page because the price honestly depends on your car, and a figure here would be wrong for many readers. What we can do is show you what moves the cost, so a quote makes sense when you hear it.

  • The key type. A plain mechanical key, a transponder key, and a smart proximity fob involve different parts and different work.
  • Make, model, and year. Some vehicles are simpler to key from scratch than others, and some need more specialized equipment.
  • Whether it's an all keys lost situation. With no working key, there is more to do than adding a spare to a car that still has one.
  • How many keys you want. A second key made in the same visit usually costs less overall than a separate trip later.
  • Remote and button functions. A key with a built-in remote involves more programming than a bare transponder key.
  • Where the car is and what time it is. A call in the middle of the night or a vehicle in a hard-to-reach spot affects the total, as does distance from our base.
  • Ignition or lock condition. If the ignition cylinder or a door lock is worn or damaged, the new key may not work smoothly until that is addressed. See our ignition repair service for that side of the problem.
  • Dealer-only cases. If your vehicle requires a dealer step, there may be towing or dealer charges outside our control.

Lost all car keys in San Dimas: where it tends to happen

San Dimas is a spread-out city in ZIP code 91773, and the places people lose keys here follow the way people live and get around. Our storefront is in Westwood, about 40 miles away, so the work here is handled by our mobile vans. We bring the equipment to the car, wherever it's parked.

Commuters are one group we keep in mind. People who drive to the San Dimas A Line park-and-ride, catch the train, and come back to find their keys gone from a pocket or bag are in a particular bind: the car is sitting in a lot, everyone else has driven away, and there's no spare in sight. Car key replacement at the park-and-ride is the kind of call that fits this service, since the key is made right where the vehicle sits.

Then there's the recreation side. Frank G. Bonelli Regional Park and Raging Waters draw visitors for whole days, and a key can slip out of a pocket on a slide, a trail, or a lakeside picnic spot. If you're in the Puddingstone and Bonelli Park area and the car is locked as well as keyless, tell us when you call so we can plan for both problems.

Residential parts of town raise their own scenarios. In the Via Verde planned community, with its townhomes, condos, and golf-course homes, cars are often parked in shared or assigned spaces, and a key lost on the course can mean a car that has to be keyed where it stands. Along Lone Hill Avenue and the Foothill Boulevard (Route 66) corridor, people stop for errands and meals, and keys vanish between stores and the parking lot. In Downtown San Dimas around Bonita Avenue, visitors park along the street and wander, which is how a key ends up at the bottom of a shopping bag or left on a restaurant table.

Summer weather plays a part, too. San Dimas is an inland valley city, and its late-summer heat runs well above the coastal basin. A person standing next to a locked, keyless car in the afternoon sun doesn't want to wait on a slow process, and that's one reason we ask on the first call whether you are in a safe, shaded place and whether anyone, especially a child or pet, is inside the car. If so, say so immediately; that changes what we do first.

Locked out or need a locksmith now?

We answer around the clock, every day of the year.

Call (213) 577-1366

Why call Wilshire Lock & Key for a lost car key

We've been in business since 1987, and we serve 140 cities across Los Angeles and Ventura counties, San Dimas among them. We operate from a real storefront at 10740 Wilshire Blvd in Westwood, plus mobile service vans. When you call, you reach our own company, not a national dispatch service that sells your job to whichever contractor picks up. The phone is answered around the clock, every day of the year.

David, the owner and lead technician, oversees the work. That matters on a job like this, where the cost of a mistake is a key that doesn't start the car or a vehicle that isn't properly programmed. Our automotive locksmith service is built around doing key work carefully and explaining it clearly.

On licensing, here's what we think every customer should know. California requires locksmith companies to hold a license from the Bureau of Security and Investigative Services, called a BSIS Locksmith Company (LCO) license. Ask any locksmith you consider hiring for their license number, and check it. It's a fair question, and a legitimate company will answer it without hesitation.

We also prefer to tell you what we can't do. If your vehicle is a dealer-only case, you'll hear that from us early. If a cheaper-sounding route would give you an unreliable key, we'd rather explain the tradeoff than win the call.

Locksmith or dealer for a lost car key?

Both are legitimate routes, and the right one depends on your car. A dealer can supply keys for the brands it sells, but you generally need to get the vehicle to the dealership, which may mean a tow if you have no key at all, and you work around their schedule. A mobile automotive locksmith comes to the car, which removes the towing step and can fit around the hours you're actually available. For many vehicles, that is the more economical route and the more convenient one.

The honest exception is a vehicle that only the dealer can key. We'll tell you if yours is one of those. If it is, we'll help you decide the sensible next step instead of attempting something we can't do properly.

If you still have one working key, you don't need this service. Making a copy from a working key is simpler, and our key duplication page covers it. For adding or replacing keys more broadly, see our car key replacement page.

What to check before you call about lost car keys

Before assuming every key is gone, a few quick checks can save you a trip. These take only a few minutes and sometimes solve it.

  • Retrace your path and check coat pockets, bags, and the places where you set things down, such as a restaurant table or a store counter.
  • Call the last few places you visited. Lost-and-found counters at parks, stores, and stations often hold keys.
  • Look around the car itself, including under the seats if you can see in, on the roof, and by the tires, in case the key was set down while loading.
  • Check with anyone who might have a spare, such as a family member, roommate, or former owner.
  • Look at your registration and insurance documents for the VIN, and gather your ID before the locksmith arrives.
  • If a key broke off in a lock or ignition rather than going missing, that's a different job. Our broken key extraction service handles it.

Frequently asked questions

Can you make a car key in San Dimas if I've lost every key?

Yes, in most cases. We make new keys from scratch for vehicles where every key has been lost, with no original needed. Some vehicles require dealer-only access, and we tell you that upfront after confirming your vehicle by VIN or in person.

Do I need the original key or a spare?

No. The whole point of lost car key replacement is that nothing is copied from an existing key. We use your vehicle's identifying information to produce and program a new key. You do need ID and proof that the car is yours.

What proof of ownership do I need?

Bring a government-issued photo ID and something that ties you to the vehicle, such as the registration, title, or a lease or rental agreement that authorizes you to use it. We also use the VIN. We won't make a key without verifying this, since that protects you and your car.

Will you come to my car, or do I have to bring it to you?

We come to you. Our mobile vans serve San Dimas, so the car stays where it is, whether that's a driveway, a street, a train station lot, or a park parking area. If your car is also locked, mention that on the first call. See our mobile locksmith service for how that works.

Can you help at night or on weekends?

Yes. Our phone line, (213) 577-1366, is answered 24 hours a day, 7 days a week, all year. Our 24-hour locksmith service in San Dimas is built for situations like a lost key found out after dark.

How much will a replacement car key cost?

It depends on your vehicle, the type of key it uses, how many keys you want, whether it includes remote functions, and the time and location of the call. We explain what applies to your car when you phone, and you'll know the figure before work begins.

Should I just go to the dealer instead?

Sometimes that is the right call, especially if your vehicle is a dealer-only case. For many vehicles, a mobile locksmith is the more convenient option because the car doesn't need to be towed anywhere. We'll tell you honestly which situation you're in.

Should I get a spare made while you're there?

Usually, yes. Having a second key made during the same visit is generally the more economical route compared with a second emergency call later. Ask about it when you call, and keep the spare somewhere other than with your main key.

How do I know a locksmith is legitimate?

California requires locksmith companies to hold a BSIS Locksmith Company (LCO) license. Ask any locksmith for their license number and verify it before you hire. You can also check that the company has a real address, as ours is 10740 Wilshire Blvd in Los Angeles, and that someone local answers the phone.

More locksmith help in San Dimas

Lost Car Key Replacement near San Dimas

Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.

Last updated 2026-10-11.

Ready for lost car key replacement in San Dimas?

We answer around the clock, every day of the year.

Call (213) 577-1366
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