how to replace a car key for an electric vehicle

Last Updated on February 11, 2025 by Alan Weir

Ah, the joys of owning an electric vehicle (EV). You’ve embraced the future, saying goodbye to petrol stations and hello to quiet, sustainable driving. But what happens when you misplace your car key? Or worse, what if it just won’t work anymore? Replacing a car key for an electric vehicle can be a bit different from traditional petrol or diesel cars. I’ve been in the locksmith game for years and I’m here to take you through the ins and outs of EV key replacement. So grab a cuppa, and let’s get into it!

Understanding Your EV Key

Before we dive into the technical stuff, let’s take a moment to chat about the keys themselves. Unlike traditional keys that simply scratch a lock, most electric vehicles come with advanced key fobs. These little devices often include features like remote locking, unlocking, and even starting your vehicle from a distance. Some manufacturers have even developed key cards—far less common, but still innovatively cool.

One big challenge is that many electric vehicle manufacturers, such as Tesla, Nissan, and BMW, impose strict security measures. This means duplicating and replacing keys often requires some high-tech wizardry and, in many cases, special equipment.

Step-by-Step Guide to Replacing Your EV Key

Step 1: Identify Your Key Type

First things first, you’ll need to identify what type of key your electric vehicle uses. If you’re unsure, check your owner’s manual; it should provide you with specific details. Some common key types include:

  • Standard Key Fob: This is the most common type found in EVs. It usually operates on RFID (Radio Frequency Identification).

  • Smart Key: This fob responds when it’s in proximity to the car, allowing you to unlock and start your vehicle without touching the key.

  • Key Card: A compact option which can often be found in premium models like the Tesla Model 3.

Step 2: Check with Your Manufacturer

Before you set off on your key-replacement journey, consider contacting your car’s manufacturer. Many of them provide a straightforward replacement service through dealerships. For instance, Tesla has specific guidelines, and arranging a visit at one of their service centres might save you time.

Step 3: Find a Reputable Locksmith

If your vehicle’s manufacturer doesn’t provide an efficient replacement service or you’re looking for a quicker fix, then it’s time to reach out to a professional locksmith. But not just any locksmith—look for someone experienced with EV keys. You want someone who understands the intricacies involved. Here at RevLock, we pride ourselves on delivering exceptional service tailored to your needs.

When searching for a locksmith, ensure they:

  • Have experience with electric vehicles
  • Use high-quality tools for key cutting and programming
  • Provide clearly outlined costs upfront to avoid any nasty surprises later.

Step 4: Prepare Necessary Documents

To verify ownership of your vehicle, locksmiths typically ask for specific documentation. Make sure you have:

  • Your vehicle registration document
  • A valid form of ID (like your driving licence or passport)

These documents reassure the locksmith you’re the legitimate owner, making the process smoother and quicker.

Step 5: Bring the Car In

Your locksmith may need to have your vehicle on-site for the replacement to take place. Electric vehicles often link the key to car systems via codes that need to be programmed. This is where the complexities come in. Experienced locksmiths can usually do this with the right tools and equipment.

Keep in mind that your vehicle might take a bit longer to reprogram than a typical key—sometimes that’s just the price to pay for high-tech gear.

Step 6: Testing the New Key

After the locksmith has cut and programmed your new key, you’ll want to test it thoroughly. It’s essential to check all functions to ensure everything works as it should. Lock and unlock the car several times, and make sure you can start the vehicle. If you’re using a key card, verify that it functions in the designated areas.

This is crucial, particularly for smart keys that may need additional synchronisation to connect seamlessly with the vehicle’s systems.

Temporary Solutions in the Meantime

If you’ve lost your only key and you’re waiting for a replacement, consider the following temporary solutions:

  • Use a Spare: If you have a spare key, use it! Just be sure to locate it as soon as possible to avoid this hassle in the future.

  • Borrow a Friend’s: While this isn’t ideal, if a pal has the same make and model, their key could work temporarily. Just remember, it won’t unlock personalised features.

  • Emergency Unlock Solutions: Some people opt for using tools or apps designed for emergency unlocking, but these can damage your vehicle and void warranties. Play it safe; it’s often better to just wait for a professional.

Preventing Future Key Issues

Once you’ve navigated this ordeal, it’s wise to think ahead. Here are a few ways to prevent key-related hiccups in the future:

  1. Get a Spare Key: Consider getting an extra key made now, so you’ll have a backup should you lose your primary key again. Our team at RevLock can help with that!

  2. Regular Maintenance: Make sure to keep your key fob’s batteries fresh. Many fobs require new batteries every couple of years. If your key starts becoming unresponsive, it might not be damaged—merely in need of a fresh battery.

  3. Keep Track of Your Keys: This might sound basic, but being mindful about where you place your keys can go a long way. Perhaps consider a hook by the door or a key finder device—the latter can save you a lot of stress in the long run.

  4. Invest in Key Protection: Some companies offer protective pouches for key fobs, which can help lessen the chances of signal interception. This is particularly important for smart keys, where your vehicle can be vulnerable to hacking.

Final Thoughts

There’s no escaping it—losing your EV key can be a right pain. But the process of getting it replaced doesn’t have to escalate into a massive headache. With the right information and the assistance of a trusted locksmith, you’ll navigate through it just fine.

Should you find yourself in need of a key replacement, remember to reach out. We’re always ready to lend our expertise, ensuring you’ll get back behind the wheel of your electric vehicle in no time. Whether it’s day or night, we’re just a call away!

Alan Weir of Weir Locksmiths - contributor to RevLock.co.uk
 | Website |  + posts

Alan Weir – Master Locksmith with 30+ Years of Experience

Alan Weir is the founder of Weir Locksmiths and a Master Locksmith with over three decades of experience. Renowned for his expertise in home and automotive security, Alan has built a reputation for providing reliable and innovative locksmith solutions across the UK.

A certified member of the Master Locksmiths Association (MLA), Alan specialises in residential, commercial and automotive locksmith services including car key replacement, transponder programming, and advanced security systems. His dedication to the field has earned him thousands of satisfied customers and glowing reviews on platforms like Checkatrade.

Now contributing to RevLock, Alan shares his expert knowledge to all of RevLocks visitors.