Car Key Programming
Dealer-grade ECU programming for transponder, remote and smart keys — at your location.
About this service
Modern car keys are tiny computers. They must be paired with your vehicle's immobiliser ECU to crank the engine. We carry the same dealer-level diagnostic equipment used by main dealerships, allowing us to program transponder chips, remote fobs and proximity smart keys for almost every car on UK roads — at your home, office or roadside.
Common issues we fix
- New key needs pairing to immobiliser
- Aftermarket fob from eBay won't sync
- Replacement ECU needs all keys reprogrammed
- Battery change has unsynced the remote
How it works
Confirm your VIN and key type
We match the correct protocol to your vehicle.
On-site diagnostics
We plug into your OBD port and verify ECU access.
Program and verify
Key paired, tested in ignition and remote, paperwork handed over.
Frequently asked
Can you program any car key?
We cover over 95% of UK vehicles. A small number of very new EVs and supercars require specific dealer codes — we'll tell you upfront if your car is one of them.
How long does key programming take?
Most cars take 20–60 minutes on the driveway.
Do I need to be present?
Yes — we need either the V5C or photo ID confirming you're the registered keeper before we begin.