Losing or damaging a car’s smart key can be disorienting — suddenly you can’t open the doors, start the engine, or use helpful features like remote boot release. The good news: modern auto locksmiths make smart key replacement straightforward, fast, and often much cheaper than going straight to a dealer. This article explains what a smart key is, why locksmiths are a great option in Exeter, the replacement process step-by-step, cost factors, and helpful tips to make the experience as painless as possible.
What is a smart key (and how is it different from a normal key)?
A smart key (sometimes called a key fob, proximity key, or keyless entry remote) is an electronic device that communicates with your car using radio signals or near-field technology. Unlike a traditional mechanical key that simply turns a lock, a smart key allows:
- Keyless entry — doors unlock when the key is near the car.
- Push-button start — the car starts without inserting a key.
- Remote features — lock/unlock, alarm activation, boot release, even remote start on some models.
- Immobiliser data — contains codes that the vehicle’s security system recognises to allow ignition.
Because smart keys include electronics, a microchip and encrypted codes, replacing them requires programming in addition to cutting or cloning any physical blade that the vehicle uses. For quick and dependable car key solutions, DB Car Keys stands out as a leading Auto Locksmith Exeter service.
Why use an auto locksmith in Exeter instead of a dealership?
Many people assume the dealer is the only place to replace a smart key. That’s not true — qualified auto locksmiths can replicate and program smart keys, and there are several reasons to consider them:
- Cost savings: Dealers often charge a premium for parts and labour. Locksmiths typically offer lower prices for both the key and the programming service.
- Faster service: Locksmiths frequently offer mobile calls and can come to your home, workplace, or where the car is stranded — saving time compared with dealer appointments.
- Local knowledge: An Exeter locksmith knows local vehicle trends and common makes in the area, meaning they can come prepared with suitable tools and replacement fobs.
- Flexibility: Locksmiths can handle a wide range of makes and models and are often able to provide solutions for older or discontinued key types where dealers struggle.
- Emergency response: Locked out? Dead key battery? Locksmiths are specialists in door opening and emergency key services, not just replacements.
Common reasons people need smart key replacement
- Lost or stolen keys: The most common reason — when you don’t have a spare, replacement is essential.
- Broken key fob: Dropping the fob, water damage, or worn buttons can render it unusable.
- Dead internal battery or damaged casing: Sometimes the fix is simple (battery replacement), but if the electronics are damaged the whole fob may need replacing.
- Vehicle change of ownership: New owners often want to cancel old keys for security and add new ones.
- Faulty transponder or programming issue: The fob might need reprogramming or the transponder chip replaced.
The replacement process — step by step
Auto locksmiths follow a reliable process to replace a smart key. Here’s what to expect:
- Initial contact & information gathering
When you call or request a quote, the locksmith will ask for the vehicle make, model, year, VIN (vehicle identification number) if available, and a description of the problem. This helps them determine whether the key can be replaced on-site and what equipment is needed. - Assessment & estimate
A good locksmith will give a clear estimate over the phone or after a brief inspection. If a simple battery or case repair will suffice, they’ll say so. For full replacement, they’ll explain costs for the fob, labour, and any additional parts. - On-site visit or workshop service
Many Exeter locksmiths provide mobile service and will come to your location. If the job requires special diagnostic equipment or a workshop environment, they may need to tow or drive the car to their shop. - Order or provision of a replacement fob
Locksmiths either keep common fobs in stock or can source a compatible blank fob. Some fobs are OEM (original equipment manufacturer), others are aftermarket blanks that work the same. - Cutting/cloning the physical key (if applicable)
If the car uses a mechanical blade as well as electronics, the locksmith will cut a new blade or clone the existing one. - Programming the smart key
This is the critical step. The locksmith uses specialised software and tools to sync the new fob’s transponder with the vehicle’s immobiliser and remote functions. Depending on the vehicle, they may program multiple functions and ensure all keys are recognised. - Testing
The locksmith will test lock/unlock, start functions, and any additional features like boot release or alarm to ensure everything works. - Security steps
If keys were stolen, reputable locksmiths can guide you through reprogramming the car to reject lost keys and issue new ones, improving security.
Typical costs & what affects price
Costs vary widely depending on make/model and whether a dealer-only part is required. Factors that affect price:
- Vehicle make and model: Luxury and newer cars (BMW, Mercedes, Audi, Tesla etc.) usually cost more due to complex encryption.
- OEM vs aftermarket fob: Genuine manufacturer fobs tend to be pricier. Aftermarket blanks are cheaper but may have limited features.
- Programming complexity: Some vehicles require dealer-level programming or special manufacturer tools that add cost.
- Number of keys: Programming multiple keys together sometimes reduces per-key cost.
- Emergency call-out: Mobile or emergency services typically carry an extra fee.
A locksmith in Exeter will give a transparent estimate; always ask for a written quote and check whether VAT or call-out fees are included.
How long does replacement take?
For most vehicles, on-site replacement and programming take between 30 minutes and 2 hours. More secure or complex systems can take longer or need a workshop visit. Mobile locksmiths minimize downtime by bringing the right equipment to you.
Questions to ask a locksmith before hiring
- Are you insured and DBS/CRB checked? (important for mobile calls)
- Do you have experience with my car make and model?
- Is the quote fixed, and what does it include?
- Do you provide a written receipt and warranty for parts and labour?
- If you can’t programme the key on-site, what are the alternatives?
Tips to prepare and avoid issues
- Keep a spare: If you have a spare key, put it somewhere safe; it can save time and money.
- Gather documents: Have proof of ownership (V5C logbook, ID) ready — most locksmiths and dealers require it for security.
- Note the VIN: The vehicle identification number (on the dashboard or V5C) speeds up the process.
- Check battery first: Sometimes a dead battery in the fob is the only issue — simple fix.
- Ask about warranties: Reputable locksmiths offer short warranties on programming and parts.
Security & legal considerations
Replacing keys involves access to your vehicle and coding sensitive security features. Always use licensed, insured professionals. Locksmiths should verify ownership before starting work, both to protect you and to comply with legal obligations. If you suspect your key was stolen, ask about reprogramming all existing keys to prevent unauthorised access.
Why Exeter residents should consider local auto locksmiths
Choosing a local Exeter locksmith means quick response times and local accountability. Many local businesses support emergency mobile calls across Exeter and surrounding areas, offering friendly, practical solutions tailored to the vehicles most common in the region. Independent locksmiths often build reputations on reliable service, transparent pricing, and fast turnaround — useful when you need help outside normal business hours.
Final checklist before you call
- Vehicle make, model, and year
- VIN or V5C (if available)
- Whether you have any working spare keys
- Clear description of the problem (lost/damaged/fob not working)
- Request for an itemised quote including parts, labour, and call-out fees
Conclusion
Smart key replacement doesn’t need to be stressful. With the right auto locksmith in Exeter, you can expect quick diagnostics, clear pricing, mobile convenience, and expert programming — often at a fraction of dealership costs. Whether you’ve lost your key, the fob is damaged, or you simply want a spare, local locksmiths provide practical and secure solutions to get you back on the road with minimal fuss.
