Losing your car key fob or wanting an extra for convenience can be stressful. Fortunately, obtaining a second key fob for your car is a straightforward process that can be completed through several reliable methods. Whether you’re a new car owner or have had your vehicle for years, this guide will walk you through everything you need to know about getting a second key fob, including costs, processes, security considerations, and where to go for help.
From contacting your dealership, exploring third-party services, to programming your own key fob, we’ll cover all your options so you can make the best, most informed decision for your specific situation.
Why You Might Need a Second Car Key Fob
Before diving into how to get a second key fob, it’s important to understand the various scenarios that might prompt the need for one.
Common Reasons for Needing an Additional Key Fob
- Duplicate for family members: Having a second fob is useful for households where multiple people drive the same car.
- Backup in case of loss or theft: A spare fob can save you time, stress, and money if the primary one is misplaced.
- Replacement after malfunction: If your original fob stops working, you may need to replace it with a new one.
- Car-sharing or rental purposes: Some car owners prefer to have multiple fobs when sharing their vehicle with friends or for rent.
Having an extra key fob isn’t just a convenience—it’s a smart move for peace of mind and access reliability.
Understanding Car Key Fobs
What Is a Key Fob?
A car key fob is a small, wireless remote control device that allows you to lock or unlock your car doors, trunk, and sometimes even start your engine remotely. It communicates with your vehicle via a radio frequency, typically a unique encrypted code that identifies it to your car’s internal systems.
Key Fob Types and Technology
Modern car key fobs come in various forms:
| Type of Key Fob | Description | Examples |
|---|---|---|
| Standard Remote Key Fob | Basic remote with lock/unlock/trunk functions | Chevrolet, Toyota, Honda models |
| Proximity Key Fob | Allows the car to detect the fob automatically (keyless entry/start) | BMW, Mercedes-Benz, Tesla models |
| Smart Key Fob | Includes advanced features like smartphone connectivity and custom settings | Lexus, Tesla Model 3/Model Y |
Understanding which type of fob your car uses is crucial to ensuring you order the correct replacement and that it can be programmed correctly.
Where to Get a Second Key Fob
There are several reliable avenues to obtain a second key fob. The best option often depends on your vehicle make and model, budget, and timeline.
1. Contact Your Official Dealership
The most secure and reliable way to get a second car key fob is to go through your vehicle’s official dealership. They will have access to the correct parts, codes, and programming software necessary to activate your new fob.
Pros:
- Guaranteed compatibility with your car make and model
- Factory programming for optimal security
- Warranty-covered if there are issues with the key fob
Cons:
- Most expensive option
- Long wait times if a fob needs to be ordered
2. Use an Automotive Locksmith
Trusted automotive locksmiths can provide high-quality copies or new key fobs for your car. They often have the tools to cut new transponder keys and program fobs on-site or at their shop.
Pros:
- Often cheaper than dealerships
- Mobility services—can meet you at your home or office
- Can handle programming and cutting on-site
Cons:
- Quality can vary depending on technician skill
- May not be able to offer genuine OEM fobs
3. Shop Online or at an Auto Parts Store
Websites like Amazon, eBay, or specialty key fob retailers offer car key fobs at lower prices than dealerships. Do your due diligence before purchasing a fob online—ensure it’s the correct model for your car.
Pros:
- Generally the cheapest option
- Wide selection and fast shipping
Cons:
- Requires self-programming (which may be difficult)
- Potential for purchasing incompatible or counterfeit fobs
4. Contact the Manufacturer Directly
Some car manufacturers allow you to order replacement key fobs directly from their customer service lines or website. This is common with newer electric and smart-car manufacturers like Tesla.
Pros:
- Guarantee you’ll get the right fob type
- Direct channel may offer better support
Cons:
- May require dealership programming anyway
- Wait time for parts delivery
How to Order a Second Key Fob: Step-by-Step Guide
Whether you go through a dealership, a locksmith, or online, there are common steps to ordering a second fob.
Step 1: Gather Necessary Information
Before placing an order, be ready with:
- Vehicle make, model, and year
- Vehicle Identification Number (VIN)
- License plate number (in some cases)
This information confirms the correct key fob is ordered and ensures security by verifying ownership of the car.
Step 2: Choose the Source
Based on your needs, decide whether to go through:
- Your official dealership
- An automotive locksmith
- Manufacturer support center
- Reputable online seller
Step 3: Purchase the Key Fob
Once you’ve chosen your source, place the order. Request a new fob rather than a used one unless budget is a significant factor.
Step 4: Program the Fob
After receiving your fob, you’ll either need to:
- Have it programmed professionally (recommended, especially for newer vehicles)
- Program it yourself (for basic models and DIYers)
Can You Program a Car Key Fob Yourself?
For many older or simpler models of vehicles, it’s possible to program a second key fob on your own using simple steps like pressing specific buttons in sequence or using the car’s on-board diagnostics (OBD-II port). However, most modern vehicles require dealer-level equipment for this step.
Steps for Self-Programming a Used or New Key Fob
Please note: the following steps are generalized and may not apply universally.
- Insert your existing key into the ignition and turn it on.
- Within 5 seconds, turn it off and repeat this process several times or follow specific instructions provided by your make/model website or manual.
- Place the new key fob near the start button (if applicable) or press any buttons on the fob while repeating ignition cycles.
- Finish with a startup and confirm if the car starts or responds to the remote functions.
When You Need Professional Programming
Most 2010 and newer vehicles use transponder keys or encrypted systems that require a trained professional or dealer equipment. For cars like BMW, Mercedes, or Tesla, self-programming is rarely possible.
Cost for Key Fob Programming
Most dealers and locksmiths charge an additional fee for programming the key, which can range from $50 to $250 depending on the vehicle.
Cost Breakdown: How Much Does a Second Key Fob Cost?
Understanding the costs involved in getting a second key fob helps in budgeting properly and choosing the best value option.
1. Replacement Key Fob at a Dealership
- Key Fob Cost: $150–$500
- Programming Fee: $50–$150
- Skilled Labor: $75–$150 per hour
2. Automotive Locksmith Services
- Key Fob Cost: $100–$300
- Programming/Labor: $75–$200 total
3. Buying Online and Self-Programming
- Key Fob Cost: $20–$150 (depending on make)
- Programming: Free (if compatible with DIY methods)
4. Manufacturer Direct Ordering
- Fob Cost: $100–$400
- Programming may require dealership visit (cost varies)
Costs vary significantly by car make and model; for example, a Tesla key fob might cost more than a Honda Civic fob due to its smart functionality and integration.
Security and Safety Considerations
A car key fob is more than a remote—it acts as a security device. Here are important tips to maintain the safety of your key fob and avoid key fob hacking or cloning.
How Car Key Fobs Can Be Hacked
Newer smart and proximity car keys are vulnerable to certain forms of hacking including:
- Relay attacks: Signal from the fob is amplified by thieves to unlock your car remotely, even if you’re inside your home.
- Code grabbing: Older fobs with basic encryption could be cloned if the code is intercepted during transmission.
How to Protect Your Car Key Fob
Here are some best practices:
- Use a signal-blocking pouch (Faraday bag): This prevents your fob from transmitting signals to hackers.
- Avoid leaving fobs near doors or windows: Especially if your car is parked nearby.
- Disable wireless functionality when parked for long periods: Some key fobs have an off switch or can be programmed to disable signals.
- Ensure only authorized fobs are programmed on your car’s system: Periodically check for additional entries via dealership software.
Conclusion: Your Step to Peace of Mind
Getting a second key fob for your car isn’t just about duplicating a remote. It’s about safety, convenience, and preparedness. Whether you’re looking for a second driver to have access or need a spare to avoid stressful lockouts, this guide covers all your options.
While going through your dealership is the most secure but expensive route, using a qualified automotive locksmith strikes a balance between cost and reliability. For the tech-savvy or budget-conscious, ordering key fobs online and programming them can also be a rewarding experience—just be sure to confirm compatibility first.
Remember: when it comes to modern car keys, proper programming and secure handling are as important as having the fob itself. Protecting your key fob against hacking and ensuring it works seamlessly with your car is a step that all car owners should take.
Now empowered with the knowledge of where to go, what to expect in terms of cost, and how to maintain security, you’re ready to make an informed decision—and get that second key fob in your hand.
Can I get a second key fob for my car, and how do I start the process?
Yes, you can get a second key fob for your car, and it’s often a wise decision for backup purposes or for family members who share the vehicle. The process typically begins by identifying the make, model, and year of your car, as different vehicles may require different types of key fobs. The most reliable method is to contact your local dealership for your car brand, as they can provide an OEM (original equipment manufacturer) key fob and program it to your vehicle. However, this is usually the most expensive option.
Alternatively, you can seek out a professional automotive locksmith who can cut and program a key fob at a lower cost than a dealership. Another option is purchasing a compatible key fob online and having it programmed by a locksmith or yourself if you’re technically inclined. It’s crucial to ensure the key fob you’re purchasing is compatible with your vehicle’s system, especially if your car has advanced security features like transponder keys or push-button start technology.
How much does it cost to get a second key fob for my car?
The cost of getting a second key fob can vary significantly depending on the make and model of your car as well as where you choose to get the key programmed. On average, dealerships may charge anywhere from $100 to $400 for a new key fob, including the programming fee. Luxury vehicles or those with advanced security features may cost even more due to proprietary systems and the need for specialized tools and knowledge.
If you decide to go through a local automotive locksmith, the cost may be somewhat lower, typically ranging from $75 to $250. If you’re comfortable doing some of the work yourself, you can buy a blank or unprogrammed key fob online for between $20 and $100, then pay a locksmith a smaller fee just for programming. However, keep in mind that programming a key fob requires special equipment and technical know-how, so it may not be a DIY project for everyone.
Do I need to program a second key fob myself, or can a locksmith or dealership program it for me?
While some modern key fobs can be programmed at home by the owner using the vehicle’s onboard system, many require the use of specialized diagnostic tools that are not widely available to the general public. Programming a second key fob yourself is often possible for newer vehicles that include DIY programming instructions in the owner’s manual or can be completed via the OBD-II port inside the car. However, these methods usually require specific steps to follow and may vary by manufacturer.
In contrast, a dealership or professional locksmith comes equipped with the tools and software needed to program your key fob quickly and efficiently. Dealerships will use their manufacturer-specific tools, while a reputable locksmith can use universal programming systems. If you’re unsure of your abilities or your vehicle requires advanced programming, it’s safer and more reliable to have a professional handle the task, ensuring seamless integration with your existing vehicle systems.
Can I use a used or secondhand key fob as a second remote for my car?
In some cases, it is possible to use a used or secondhand key fob as a second remote for your car, but this option comes with some caveats. The key fob must match your vehicle’s make, model, and year exactly—or within a narrow range—since programming and compatibility can vary between model years. Additionally, since used key fobs are often tied to a previous vehicle’s security system, they typically need to be erased and reprogrammed for your car.
Programming a used key fob often requires the same equipment as programming a new one, which means working with a dealership or locksmith is necessary. However, even if you can acquire one cheaply or for free, there’s no guarantee the fob will work properly or have a functional battery. For reliability and security, purchasing a new or unprogrammed key fob is often a better choice than a used one, especially for vehicles with transponder-based immobilizer systems.
Will getting a second key fob affect the security of my car?
Getting a second key fob will not compromise your car’s security as long as it is properly programmed and kept secure. Modern vehicles are equipped with transponder technology and rolling code systems that prevent unauthorized duplication of the key signal. Each key fob has a unique digital signature recognized by the vehicle’s computer, and adding another one simply adds another recognized code.
That said, it is important to take security precautions, such as ensuring that only trusted individuals have access to additional key fobs and maintaining accurate records of the number of fobs in circulation. If a fob is lost or stolen, some vehicles allow for the deactivation of lost fobs via a dealership or advanced locksmith. By following these practices, you can greatly reduce the risk of key fob-related vehicle theft or unauthorized access.
What is the difference between a key fob and a regular transponder key?
A key fob is a remote control device that typically allows for keyless entry, remote engine start, and push-button ignition functions, depending on your vehicle’s features. A regular transponder key, on the other hand, is a physical key with an embedded microchip that communicates with the vehicle’s immobilizer system to allow the engine to start. While they both serve as security components, their functions and use cases differ.
Key fobs are generally more convenient, especially in modern vehicles equipped with keyless entry systems, while transponder keys offer a more traditional start method. Some vehicles equipped with push-button start systems require the key fob to be inside the vehicle for operation, while others may still use a transponder key that needs to be inserted into a dedicated slot. Whether you need a fob or a traditional transponder key depends on your vehicle’s year and keyless technology specifications.
How long does it take to get a second key fob programmed and ready to use?
The time it takes to get a second key fob programmed and ready for use typically ranges from 20 minutes to an hour, depending on the complexity of your vehicle’s system and who is performing the programming. Most dealerships can complete the task quickly since they have the factory tools and trained technicians on hand. Similarly, a qualified automotive locksmith usually carries the necessary programming equipment and can program your key on-site in a comparable timeframe.
If you choose to program the key yourself, the process can take longer, especially if you are unfamiliar with the steps involved. Some vehicles allow DIY programming in as little as 10 to 15 minutes using specific procedures outlined by the manufacturer, while others may require more involved actions or tools. Once programmed, the key fob should function immediately, allowing you to unlock, lock, and start your vehicle as needed.