Why all keys lost is a different job from a spare
When you still have one working key, a technician can often make another by reading the first and teaching the car about the new one. The car recognizes its existing key, and the process builds on that. It is relatively quick and predictable.
When every key is gone, none of that is available. The new key must be cut to fit the locks, which means working out the key pattern without the original. The car's computer must then be taught to accept the new key, which may involve erasing the old keys it knew about, for security. And the technician must be satisfied that the person asking has the right to do all this, since the same service is exactly what a car thief would want.
Each of these steps adds time and care. This is why an all keys lost job usually takes longer than making a spare, and why a technician will ask more questions before starting. It is not an attempt to be difficult. It is a safeguard for you, because the same safeguards prevent someone else from doing this to your car.
This page covers what happens, what information to gather, what proof is needed, where the work can be done and what to do while you wait. It gives no prices. Quotes are given only by phone, and a service call charge applies for a visit, explained before anyone is dispatched. Complicated cases may need an on-site look before the work can be described fully.
First, make sure the keys are really lost
Before calling anyone, spend a few minutes confirming that the keys are not simply misplaced. Check pockets, bags, coats, the place where you last parked, the last stop you made, a friend's or family member's home, the car itself if you can see in. Many all keys lost calls turn out to be a key in a jacket pocket or on a shelf.
Ask family members and anyone who has driven the car. Check whether a spare is held by a relative, a former partner, a dealership, a valet, a mechanic or a rental agency. Some owners keep a spare in a safe place and forget. Some purchase paperwork includes a second key that went into a drawer.
If you believe the keys were stolen, for example in a bag snatch or a break in, treat it as a security matter. Report it to the police, and think about the house keys and any other items that were with the car keys. A stolen key with your address on a tag or in the same bag as your mail is a risk to your home as well. The page on stolen keys or purse theft explains what to do.
If the keys fell into water, are broken or were left inside the locked car, the situation is different. A key inside a locked car is a lockout, not an all keys lost job. See the page on car lockout with keys inside. Describe the situation accurately when you call, so the right kind of help is arranged.
What information the technician will ask for
To make a key from nothing, the technician needs to identify the vehicle exactly. Have ready the make, model, year, and the vehicle identification number, usually shortened to VIN. The VIN is a seventeen character string found on the registration, insurance card, title and on a plate at the base of the windshield on the driver's side, visible from outside the car. Read it carefully, since one wrong character leads to the wrong key information.
The technician will also ask about the key type you had. Was it a metal key with a plastic head, a flip key, a remote key with buttons, a push button start smart key or a fob you carry in your pocket? Did the car start with a key turned in an ignition or with a button? If you do not remember, describe how you started the car and whether it has a keyhole on the dash or column.
Other helpful details include the car's color and trim level, whether it was bought new or used, whether it has been to a dealer recently and whether there is any known issue with the electronics. If the car has been modified, for example with an aftermarket alarm or remote starter, mention it, since these can affect programming.
Where the car is located matters too. If it is at home, in a parking lot, at a shop or at the side of the road, the approach may differ. Say if it is in a garage, a tow lot or a place with limited access. Say whether it can be moved. If it cannot start or move, it may need to be reached where it sits. The page on vehicle ownership and key requests describes the process in more detail.
Proof of ownership: what is asked and why
Before making a key for a car, a responsible locksmith must be satisfied that the person asking has the right to own and drive it. The reason is practical. Making a key for a car with no key is the way a car is stolen without breaking a window. A technician who does not check is helping thieves and exposing the real owner to loss.
The usual proof is two things: identification and evidence of ownership. Identification is a government issued photo ID. Evidence of ownership might be the vehicle registration, the title, a bill of sale, a loan document or an insurance card that shows the vehicle and the owner's name. The name on the identification should match the name on the document. If the vehicle is owned by a company or a family member, expect to be asked for additional documents or authorization.
Be ready for the technician to compare the VIN on your document with the VIN on the car itself. They may take a note of the VIN, your ID details and the plate number as part of their records. This is a normal part of the work and a good sign, not a nuisance.
If you cannot produce proof at the time, do not be discouraged. Many people have documents at home, in the cloud, or in a glove box that is locked in the car. Contact your insurer, your lender or the motor vehicle agency for copies. The page on car key ownership proof explains what is commonly accepted and what to do if a document is missing.
How the key is made
There are two main parts: cutting the key and programming the car. Cutting creates the metal blade so it turns the door locks and, in a key start car, the ignition. A technician can usually obtain the cut pattern from the VIN through proper channels, from the lock itself or by examining the lock mechanism. Cutting is done with a machine, either at the location or elsewhere.
Programming teaches the car's computer to accept the new key. Most modern cars use a transponder key, which contains a small chip that sends a signal the car checks before allowing the engine to start. Smart keys that start the car with a button use radio signals. In both cases, the car must recognize the new key's signal. Programming is done with specialized equipment connected to the car's diagnostic port, under the dash.
In an all keys lost case, programming often requires a security procedure, such as entering a security access number supplied by the manufacturer or waiting for a timed security cycle. Some makes have built in waiting periods during which the car cannot be programmed. Others require that the car's computer be accessed in a particular way. A technician who knows your make can explain what applies.
Many vehicles also require that old keys be erased from the car's memory as part of the process. This is a security feature: it means that a lost key can no longer start the car, even if someone finds it. Ask the technician whether your car will erase the lost keys. If you later find an old key, it may no longer work, and that is the intended result.
Why it takes longer and what affects the time
Several things add time. Identification and ownership checks take a few minutes at the start. Retrieving the key information takes some steps. Cutting must be done accurately. Programming may include security waiting periods. Testing must confirm that the key starts the car and operates the locks and remote functions.
The make and model matter. Some cars are straightforward, and the process goes smoothly. Others, particularly some European brands and newer models, have more demanding security and may need extra tools or, in some cases, parts ordered in. A technician can say on the phone whether your car is likely to be quick or more involved, but cannot promise a time.
Conditions also matter. A car in a clear, accessible location is easier to work on than one in a tight garage or under a cover. A weak car battery can interrupt programming. A car with warning lights, a failing computer or previous attempts at programming may need extra checks.
In some cases the work cannot be completed at the car's location and the vehicle must go to a shop or to a dealer. When that happens, the technician will tell you and explain why. The page on dealer versus locksmith for car keys compares the two routes and when each makes sense. No arrival time or finishing time is promised, since the job depends on many factors.
Types of keys you might need
The kind of key shapes the process. A basic metal key with no chip is the simplest. It opens the doors and starts the engine on older cars, and it is cut but not programmed. A transponder key has a chip inside the head and needs programming. A remote head key combines a transponder with lock and unlock buttons. A flip key folds its blade into the fob. A smart key or proximity fob is carried in a pocket and starts the car with a button.
Each has its own requirements. For transponder keys, see the page on transponder key programming. For smart keys, see smart key fob replacement. Some smart key cars also have an emergency blade hidden in the fob, which can unlock the door but not start the car, and the blade may be the first thing needed in an all keys lost case.
If your car has more than one key type, such as a main fob and a valet key, mention both. The valet key may open the doors and start the car but not open the trunk or glove box. You can decide which keys to replace. Many owners replace two, so that they again have a spare. Having a spare made while the technician is present is usually simpler than doing a second job later.
Ask about how many keys the car can hold. Some vehicles have a limit on how many keys can be programmed. If keys are lost and erased, the count is reset, and you can add the number you need up to the limit.
What you can and cannot do while you wait
While waiting, there are useful things you can do. Gather your documents. Find the VIN. Make sure the car is accessible. If it is in a public place, stay near it or arrange a safe place to wait. If it is at home, move anything that blocks access to the doors and the area under the dash.
There are also things not to do. Do not try to start the car by bypassing the ignition or forcing the lock. These attempts can damage the ignition cylinder, set off the alarm or lock out the car's electronics, making the job longer and more difficult. Do not buy a key from an online seller and hope it will work. Many online keys are blank, need cutting and still need programming, and some are poor quality or incompatible. See buying locks online versus professional install for the general idea.
Do not leave the car in a place where it may be towed, blocked or at risk. If you must leave it, make a note of where it is and check that it is legally parked. If you suspect the keys were stolen, consider that someone may know where the car is. A locksmith cannot help with that, but the police can.
If you are in an unsafe place or at night, put your safety first. If you feel threatened, move to a safe location and call for help. The car can be dealt with later. If a child or pet is in the car, call 911 immediately.
Reducing the risk of this happening again
Once you have a new key, take a few steps to avoid repeating the situation. First, have a spare made, if you did not already, and store it somewhere safe, not in the car and not with the main key. A spare kept at home, in a locked place, can save a great deal of trouble.
Second, consider a tracking tag or a bag with a place for keys. Many people lose keys in the same few ways, and a habit, such as always placing keys in the same pocket or bowl, helps. Third, keep photos or copies of your vehicle registration and ID, so you can show ownership when needed.
Fourth, think about the smart key itself. If your fob has a hidden blade, know where it is and how to use it. If the fob battery is weak, replace it before it fails. The page on key fob battery and reprogramming describes what to do.
Finally, if you are buying a used car, ask how many keys come with it and whether any have been erased. The page on used car purchase key checklist lists what to check at purchase. Having two working keys from the start prevents most all keys lost situations.
How to start the call
When you call, give the technician the facts in a clear order. Tell them the make, model and year, and the VIN if you have it. Say what kind of key you had and how the car starts. Say where the car is and whether it can be reached. Say whether you have identification and proof of ownership at hand. Say whether you want one key or two.
The person on the phone can explain how the process works, tell you whether the job is likely to be done at the car or elsewhere, and describe the service call charge before anyone is dispatched. Quotes are given only by phone, and some situations need an on-site look. If anything is unclear, ask. A technician should be comfortable explaining each step.
A good call also covers what happens if the technician arrives and finds a problem. For example, if the car's computer proves difficult, if the VIN does not match the document, or if the proof of ownership is not enough. Knowing this in advance prevents surprises. The page on what to expect during key programming walks through a typical visit.
If you have lost every key to your car and want to know what is involved, call and describe the situation. A technician will explain what is needed and arrange the next step.
- Make, model, year and the VIN
- Type of key: metal, transponder, remote head, flip or smart key
- Photo ID and a document showing ownership
- Where the car is and whether it can be reached
- How many keys you want made
Questions people ask
Why does an all keys lost job take longer than a spare?
With no working key, the technician must obtain the cut pattern, cut a new key, program the car to accept it and check ownership first. Some makes add security steps or waiting periods. A spare can be copied from an existing key and taught to the car with fewer steps. Exact timing is never promised.
What do I need to prove the car is mine?
Usually a government photo ID and a document that shows the vehicle and your name, such as a registration, title, bill of sale or insurance card. The technician may compare the VIN on the document to the VIN on the car. Without proof, a responsible technician cannot make the key.
Where do I find my VIN?
The VIN is on your registration, insurance card and title, and on a plate at the base of the windshield on the driver's side, visible from outside. Read it carefully, since one wrong character leads to the wrong information. Give it to the technician when you call.
Will the old lost keys still start my car?
On many cars the programming process erases old keys so that lost ones no longer work. This is a security feature. Ask the technician whether your car does this. If you later find an old key, it may not start the car, which is the intended result.
Can this be done where my car is parked?
Often yes, since a technician can cut and program the key on site. Some makes or conditions may require work elsewhere or parts ordered in. The person on the phone can tell you what is likely for your car, though no arrival or finishing time is promised.
How do I get a quote for a new key?
Quotes are given only by phone. Have the make, model, year, VIN and key type ready. A service call charge applies for the visit and is explained on the phone before dispatch. Some cars need an on-site look first, and the technician will tell you if yours does.
Describe the situation by phone and we will tell you what the job involves. Quotes are given by phone. Jobs that cannot be quoted without seeing them need a technician on site, and the service call charge is explained on the phone before anyone is dispatched.
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Written by Claude (AI) (AI) for 24 Hour Locksmith Miami.