Lost Car Key Replacement in Los Angeles and Ventura County

What does lost car key replacement actually involve?

Lost car key replacement is the job you call for when no working key to the vehicle exists anymore. Not a spare in a drawer, not a key at a relative's house. Every key is gone, so there is nothing to copy. A duplicate is a copy of something that already exists. This is different: we create a new key from the vehicle itself. It gets cut to match the locks and, where the car requires it, introduced electronically so the car's computer accepts it.

That is why this work sits apart from ordinary key duplication. It takes more equipment, more verification and more care, and the details depend on the make, model, year and type of key the car was built with. We confirm those details by VIN and by looking at the vehicle in person rather than guessing over the phone.

This page goes deeper into the craft than our city pages do. If you want to understand what is happening to your car while a locksmith works on it, what can go wrong, and where the honest limits are, this is the explanation.

What situations lead to a lost all keys call?

Almost nobody plans for this call. People reach us after one of a handful of ordinary, frustrating events, and knowing which one you are in helps us work out the right approach before we arrive.

• The only key went missing while you were out, and you have retraced your steps without luck.
• A bag, wallet or jacket holding the key was stolen, which also raises the question of who now has both your key and clues to where the car is parked.
• The single key broke or was damaged beyond use, and there was never a spare.
• You bought a used car that came with only one key, and that key is now gone.
• A key went through a wash, into water, or was crushed, and no longer works.
• You travelled, and the keys stayed behind somewhere too far to retrieve.
• A smart or proximity key quit working and no mechanical backup key can be found.

How do we make a new car key from scratch?

The exact sequence varies by vehicle, but the work follows the same logic every time. Here is how a typical all-keys-lost job goes.

1. We start on the phone. We ask for the make, model, year, whether the car starts with a key or a push button, where it is parked, and whether any spare might still exist anywhere. Those answers decide which tools go in the van.
2. We verify ownership. Before we make a key to a vehicle, we look at your photo ID and the registration or title. A lost-key service is exactly what a car thief would ask for, so we ask every customer, every time.
3. We identify the vehicle by its VIN. The VIN tells us which key type and blank the car uses and whether an immobilizer system is involved. We do not rely on a guess about the model alone.
4. We establish how the key must be cut. Depending on the vehicle, that can mean working from the vehicle's data or reading the lock itself. We do not assume one method fits every car.
5. We cut the key on a machine so the bitting matches the locks precisely. A key that is almost right can still wear a lock or fail intermittently, so this step gets checked.
6. If the car has an immobilizer, we connect to the vehicle's diagnostic port and program the new key so the car recognizes it. Where the system allows, we also remove the lost keys from the car's memory so a missing key stops being a security risk.
7. We test everything: turn the ignition, start the engine, try the door locks, trunk and any remote functions, and confirm the key behaves the way a factory key would.
8. If you want a spare, this is the moment to make one. We are already connected to your car, and a spare is usually the more economical route compared with a second all-keys-lost call later.

What does a professional check before cutting anything?

A new key is only as good as the lock it has to turn. Part of doing this properly is looking at the whole system before committing to a plan.

This is where experience matters most, and it is also where a rushed job tends to go wrong. A few minutes of inspection can save you from paying for a key that does not solve your actual problem.

• Whether the ignition and door locks turn smoothly. A worn or sticking ignition is often why a key broke or wore out in the first place, and a fresh key will not fix it.
• Whether the car uses separate keys for doors and ignition, or a single key that does everything.
• Whether the car's immobilizer accepts additional keys through the diagnostic port, or whether the vehicle needs something more.
• The state of the car's own battery, since a weak battery can interrupt programming and leave a job half finished.
• Whether the lost key may be in someone else's hands, in which case removing it from the car's memory matters more than usual.
• Whether the car itself is the problem. If the vehicle will not start for a reason unrelated to the key, we say so rather than programming a key that cannot help.

How do the vehicle and key type change the job?

Two lost-key calls can look identical on the phone and be completely different jobs at the car. Here are the variations that change what we do. We confirm which applies to your vehicle by VIN or in person, never by assumption.

• A plain metal key with no electronics is the simplest case. If your car uses one, cutting alone may be all it needs.
• A transponder key carries a chip the car checks before it will start. The key has to be cut and the chip has to be programmed, which is why this kind of job is a combination of machining and electronics. Our page on transponder key programming explains that side in more detail.
• A remote head key combines the cut blade, the chip and the lock and unlock buttons in one piece, so there is more to match and test.
• A smart or proximity key works by sensing the key near the car for push-button start. These usually involve more programming steps and, in some cases, hardware that only certain sources can supply.
• A high-security or laser-cut key has a milled track rather than edge cuts and needs different cutting equipment than a traditional key.
• Separate door and ignition keys, or vehicles with a valet key, mean we need to know what you actually need before we start.

When is something other than a lost-key job the right call?

A good locksmith tells you when your problem is not the one you called about. Lost car key replacement is the right service only when no working key remains. In several common situations, something else makes more sense and often costs less.

• You still have one working key. You do not need an all-keys-lost job. A copy or spare made from a working key is a lighter job, covered on our car key replacement page.
• You have the key but the ignition will not turn it, or the key sticks, or it will not come out. That is a lock problem, and a new key will not cure it. Our ignition repair service addresses the cylinder itself.
• You have the key but the remote buttons have stopped working. That points toward the fob's battery or electronics, not a lost key.
• The car is locked with the keys inside. That is a lockout, and we handle that first without making a new key.
• The car will not start and you assume it is the key. If the battery, starter or another system is responsible, a new key will not help, and we will tell you.

Will my car need the dealer?

Most of the time, no. But some vehicles are the exception, and we would rather say so up front than let you wait on a job we cannot finish. On certain vehicles, the security information needed to make or program a key is accessible only through the manufacturer or its dealers. Others have programming steps that require equipment or access we cannot get around.

Because the details depend on the specific vehicle, we do not give you a blanket answer over the phone. We confirm by VIN and, where needed, by looking at the car. If your vehicle turns out to be dealer-only, we tell you plainly, and you do not pay for a trip that could not have worked. If you are not sure whether your car falls into that group, call and we will walk through it.

What should you do right now if all your keys are gone?

A few small steps make the whole process go smoother, and a couple of them protect your car.

• Search one more time in the unglamorous places: coat pockets, the gap in a car seat, a bag's lining, the last place you set down a drink.
• If the keys were stolen along with a bag or wallet, treat your car as potentially at risk, especially if your address or registration was in the same bag.
• Have your photo ID and your registration or title ready. If you cannot find the registration, tell us, and we will explain what other proof works.
• Find your VIN. It is usually visible through the windshield on the driver's side of the dashboard, on the driver's door jamb, and on your registration or insurance card.
• Tell us whether any spare exists anywhere, even if it is far away. A spare changes the job.
• Be careful with keys or fobs bought online from unknown sellers. They may not be compatible with your car, and a mismatched part can turn a straightforward job into a longer one.

What affects the price of a lost car key replacement?

We do not quote numbers on this page, because an honest figure depends on facts we do not have until we know your vehicle. What we can do is explain exactly what moves the cost, so nothing about the final quote is a surprise.

Our pricing page explains how we approach quoting in general. For a lost-key job, these are the main factors:

• The type of key. A plain metal key, a transponder key, a remote head key and a smart key involve very different parts and labor.
• The make, model and year. Some vehicles are simple to work on, others have more demanding security systems.
• Whether programming is required, and how involved it is for your specific system.
• Whether lost keys need to be erased from the car's memory.
• How many keys you want. A spare made during the same visit is generally the more economical route.
• Where the car is and when you call. Mobile service means we travel to you, and an after-hours call-out is a different commitment than a daytime appointment.
• The condition of the ignition and locks, which can add work if something is worn or damaged.
• Whether the vehicle turns out to need the dealer, in which case we tell you before any work starts.

Why call Wilshire Lock & Key for a lost-key job?

We have been doing this work since 1987. That matters in this trade because lost-key jobs reward experience: knowing which vehicles behave unusually, which problems hide behind a lost-key call, and when to stop and tell a customer the truth.

We operate a storefront at 10740 Wilshire Blvd in Westwood, Los Angeles, plus mobile service vans, so the people answering your call are the same company that does the work. There is no dispatch middleman passing your job to whoever is available and adding a layer between you and the technician. David, the owner and lead technician, oversees the work.

Our phone is answered 24 hours a day, 7 days a week, year-round at (213) 577-1366. Losing every key rarely happens at a convenient hour, and we answer accordingly.

One more thing worth knowing, whoever you hire: California requires locksmith companies to hold a BSIS LCO license. Ask any locksmith for it before they start work on your car. A professional will not mind the question.

Where do we replace lost car keys?

We serve 140 cities across Los Angeles and Ventura counties, and the method on this page does not change from one city to the next. What changes is the drive. You can see the full list on our locations page, or look at how this service works in a specific place, such as Los Angeles, Santa Monica or Pasadena.

If you are not sure whether your location is covered, call (213) 577-1366 and tell us where the car is parked. We will tell you honestly what we can do.

Lost Car Key Replacement near you

• Los Angeles
• Beverly Hills
• Santa Monica
• Culver City
• West Hollywood
• Sherman Oaks
• Marina del Rey
• Ladera Heights
• Encino
• Inglewood
• Studio City
• View Park–Windsor Hills
• Van Nuys
• Lake Balboa
• All service areas

Related services

• Automotive Locksmith
• Car Key Replacement
• Key Fob Replacement
• Transponder Key Programming
• Ignition Repair