Car Key Types Explained
Car keys come in four main types: remote fobs, smart keys, transponder keys and flip keys. This page explains each one in plain words, so you can tell which key you have.
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Four types of car key
- Remote fob — a remote with buttons that locks and unlocks your car. We supply and program a new fob at your location.
- Smart key — a key that works by proximity, with no key in the ignition. We supply and program a new smart key.
- Transponder key — a key with a chip inside that talks to your car. We supply and program a new chip key.
- Flip key — a key whose blade folds away into the fob. We supply and program a new flip key.
Which key do you have?
Look at the key in your hand and match it to the list above. A photo sent on WhatsApp also helps us tell which type it is. If you are still unsure, call us and describe your key.
Programming
Most keys and fobs must be programmed so the car accepts them. We program the new key where your car is and try the lock, unlock and start with you. Our key programming service explains the job in full.
What a replacement costs
The cost depends on the key type, your car and the programming needed. Call us with your car details for a clear quote. The prices page explains what affects the cost.
Call 07367 634032 or message us on WhatsApp with your key type and car details.
Frequently asked questions
How do I know which type of car key I have?
Look at the key in your hand. A remote fob has buttons for locking and unlocking. A smart key works without a key in the ignition. A flip key folds the blade away. A transponder key has a chip inside it. If you are unsure, send us a photo on WhatsApp.
Can you replace every type of car key?
We replace remote fobs, smart keys, transponder keys and flip keys in Birmingham. Each type is programmed to your car at your location. Tell us your car make, model and year when you call, and we will check what your key type needs.
What is the difference between a smart key and a remote fob?
Press the buttons on a remote fob to lock and unlock the car. A smart key works by proximity, so the car senses the key nearby and lets you start it without a key in the ignition. Both types are programmed to the car, and both can be replaced at your location.
Do I need proof of ownership for a replacement key?
Yes. Bring your V5C log book, photo ID and car registration number to the visit. We check them before work starts so the new key is made for the rightful owner. Call us first if your V5C is not to hand, and we will tell you what else we can accept.
Last updated: 7 November 2026 · Written by Car Key Fob Replacement Birmingham