All Keys Lost
BMW 420d — Winchester
Replacement key supplied and programmed for a BMW 420d following an all-keys-lost situation in Winchester.
Key programming · Southampton & Hampshire
Car Key Programming
Need a vehicle key programmed? Immediate Access provides mobile car key programming for many cars and vans across Southampton and surrounding Hampshire areas.
What Car Key Programming Means
Modern car keys aren't just pieces of shaped metal. Most contain electronics that communicate with the vehicle. Programming is the process of registering a key with your car so the vehicle recognises it and allows it to unlock the doors, operate the central locking or start the engine.
Systems differ between manufacturers, models and model years. That's why we always ask for the vehicle details first and confirm what's possible before attending.
Types of Key We Program
Transponder / chip keys
A small chip inside the key sends a signal to the car's immobiliser. If the car doesn't recognise the chip, the engine won't start — even if the blade turns.
Remote central locking
The buttons that lock and unlock the doors operate separately from the immobiliser chip and often need setting up in their own right.
Smart / proximity keys
Keyless-entry systems detect the key nearby so you can unlock and start the car without inserting it. Programming these depends heavily on the vehicle.
Cars and vans
We program keys for many cars and commercial vans. Call with the make, model and year to check yours.
Why Cutting the Blade Isn't Always Enough
On older vehicles, a correctly cut key might be all you need. On many modern vehicles, a cut blade will open the doors manually but won't start the engine until the key's electronics have been programmed to the car. Remote buttons may also stay inactive until they're set up.
This is why a cheap cut key from a high-street kiosk often won't drive the car — and why programming is part of almost every replacement, spare and lost key job we do.
Replacement-key programming
When a key is lost, damaged or faulty, the new key is programmed to the vehicle. See car key replacement.
Spare-key programming
Adding an extra key so the car recognises it alongside your existing one. See spare car keys.
Mobile Programming at Your Vehicle
Where the vehicle supports it, we program keys on site using dedicated equipment — at home, at work or wherever the car is parked. There's no need to arrange a dealership visit for suitable jobs.
If you've bought a key or fob yourself, call us with the details first. Not every supplied key is compatible or of suitable quality, and we'll advise before you rely on it.
Information We Need for a Quote
- Vehicle registration, make, model and approximate year
- The type of key — remote, transponder or smart key
- Whether you have a working key, and whether you've bought a key yourself
- What's happening — new key, key not recognised, remote not working
- Where the vehicle is
We may need proof of ownership or authority to access the vehicle before carrying out programming.
How it works
- 1
Describe the vehicle and key
Tell us the make, model, year and the key you need programmed.
- 2
We confirm compatibility
We'll check what's possible for your system and quote.
- 3
Programmed at the car
Where supported, we program the key at the vehicle and test every function.
Vehicle Manufacturers
Programming systems vary by manufacturer — for example Audi, BMW, Land Rover and Peugeot each work differently. Choose your make for more detail.
- FordCar Keys →
- VauxhallCar Keys →
- VolkswagenCar Keys →
- AudiCar Keys →
- BMWCar Keys →
- MercedesCar Keys →
- Land Rover & Range RoverCar Keys →
- PeugeotCar Keys →
- CitroënCar Keys →
- NissanCar Keys →
- ToyotaCar Keys →
- RenaultCar Keys →
- SEATCar Keys →
- SkodaCar Keys →
- KiaCar Keys →
- HyundaiCar Keys →
- JaguarCar Keys →
- MINICar Keys →
Not sure whether we cover your vehicle? Call 07944 199 003 with the registration, make and model and we can advise you.
Areas We Cover
Mobile key programming is available across Southampton and surrounding Hampshire. Choose your area for local information.
Recent Key Programming Jobs
All Keys Lost
Volkswagen Arteon — Southampton
Replacement key supplied and programmed for a Volkswagen Arteon following an all-keys-lost situation in Southampton.
Spare Key
Nissan Elgrand — Woolston
Additional key supplied and programmed for a Japanese-import Nissan Elgrand in Woolston.
Car Key Programming FAQs
What is car key programming?
It's the process of registering a key's electronics with your vehicle so the car recognises it for locking, unlocking and starting.
Why won't my newly cut key start the car?
On many modern vehicles the key's chip must be programmed to the immobiliser. A cut blade alone won't start the engine.
Can you program a key I bought online?
Sometimes. Some supplied keys aren't compatible or are poor quality. Call with the details and we'll advise.
Can every car key be programmed at the vehicle?
No. Systems differ by manufacturer, model and year, and some can't be programmed outside a dealer. We'll confirm before attending.
My remote has stopped working — does it need reprogramming?
It may, but a flat battery or a faulty key are also common causes. Describe the problem and we'll help identify it.
Do you program smart and keyless keys?
For many vehicles, yes. Suitability depends on the specific system.
What information do you need?
Your registration, make, model, year, the key type, whether you have a working key, and the vehicle's location.
Need a key programmed?
Call for current availability across Southampton & Hampshire.