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Black car key fob — Amco Locksmiths, What Should I Do If Someone Stole My Car Keys?
Car key guide

Your car keys were stolen. What now?

Lost keys are an inconvenience. Stolen keys are a different problem, because somebody knows where the car is.

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Short answer

Treat stolen keys as urgent. Report it to the police and get a report number, move the car if you safely can, then have a new key made and the stolen one deleted from the car’s computer so it will no longer start the engine. We do this at the car for Japanese, Korean and most American-built makes.

First
Report it and get a police report number
Then
Delete the stolen key from the car
Note
A deleted key may still open the doors
Stolen keys

Why stolen is not the same as lost

Why is a stolen key worse than a lost one?

A key taken from a bag, a gym locker or a house break-in usually comes with something that identifies the car — a registration paper, an address, a remote you can press in a car park until lights flash. That is what makes it urgent in a way a key dropped at the beach is not.

What should I tell the police?

Ring the police and get a report number. Insurers ask for it, and if the car is taken it matters. If the keys were taken in a house break-in, also assume your house keys are compromised, because they are usually on the same ring.

Should I move the car?

If you still have a spare key and the car is parked somewhere the thief knows about, move it. A car in a garage or somewhere else entirely is a much harder target than one on the verge outside the address printed on the papers in the glovebox.

How do I stop the stolen key starting the car?

This is the part people do not realise is possible. When we programme a replacement key we can remove the stolen one from the car’s computer, so it will no longer start the engine. One honest caveat: a deleted key may still open the doors, because the door barrels are mechanical and separate from the immobiliser. If that matters to you, say so and we will talk through the options.

Were your house keys on the same ring?

If the house keys went with the car keys, rekeying the house is the other half of the job. A rekey changes the pins inside the locks you already have, so every stolen key stops working without replacing a single lock. A typical Perth house runs six to eight locks and takes about an hour. We can do the car and the house in the same visit.

Where to go next

If you need it done now, see lost car keys in Perth or car key replacement. The cost side is in what a car locksmith costs, and making a car key without the original explains how a new key is made. The car locksmith page lists every make we do.

Common questions

Straight answers

Yes. When we programme your new key we can delete the stolen one from the car’s computer so it will not start the engine.

It may. Door barrels are mechanical and separate from the immobiliser, so deleting a key from the computer does not always stop it opening a door. Tell us if that matters and we will talk through the options.

Rekey the house. We change the pins inside your existing locks so every stolen key stops working, without replacing the locks. A typical Perth house takes about an hour.

Yes, and get the report number. Insurers ask for it, and it matters if the car is later taken.

We run a 24 hour emergency service and we will tell you honestly when we can get to you. We never promise an arrival time we cannot keep.

Yes, and it is usually the sensible way to do it.