Frequently Asked Questions
Answers to common questions about spare keys, replacement keys, cutting, programming, compatibility and appointments.

Car key service FAQs
How do I know which key fits my car?
Send your registration number and a clear photo of the current key, if available. We check the blade, frequency, transponder and vehicle specification before confirming an option.
Can you make a key if I have lost every key?
For many vehicles, yes. The correct process depends on the make, model, year and security system. Proof of identity and vehicle ownership will be required.
Does the advertised price include cutting and programming?
Product and service requirements vary. Contact us before ordering so we can confirm what is included for your exact vehicle and whether additional work is needed.
What information should I send?
Please send the vehicle registration, make, model and year, plus photos of the current key and blade where possible. For mobile work, also include your postcode.
Do you offer a mobile service?
Mobile appointments are available for selected services across Doncaster. Some work is best completed at our Armthorpe workshop.
Can you program remote, smart and transponder keys?
We support a wide range of vehicle key systems. Compatibility must be checked before the appointment because equipment and procedures differ between vehicles.
Can a lost key be removed from the vehicle?
On supported vehicles, lost key data may be reviewed and removed from the authorised key list. We will explain the available security options after checking the vehicle.
How long does the service take?
Timing depends on the key type, vehicle security system and whether decoding or additional diagnostic work is required. We provide an estimate after the compatibility check.
What areas do you cover?
Our primary coverage includes Doncaster. Contact us with your postcode to check current mobile availability.
Do I need proof of ownership?
Yes, proof of identity and vehicle ownership may be required before replacement, decoding or programming work begins.
Speak directly with Smart Auto Keys
Call, text or WhatsApp with your vehicle details and we will advise the next step.