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A Step-By-Step Guide To How Much Is A Car Key Fob Replacement From Start To Finish
How Much Is a Car Key Fob Replacement?

Key fobs perform a number of functions, including unlocking doors and remote start. Depending on the type of key fob, they are more expensive than others.

Consumer Reports estimates that the average cost of a dealership visit to change and program the fob is $200 per vehicle. You can also save by visiting an automotive locksmith or purchasing an unprogrammed fob online and getting it programmed by yourself.

Basic Keys

The cost of a key fob replacement can vary greatly depending on the car's model and type. The majority of hardware stores and locksmith shops won't charge more than $100 to replace a standard key fob for a car that unlocks doors, lowers windows, and activates the security system. However, if your replacement key fob is also equipped with a transponder chip or has an intelligent-key system, it's going cost more.

Some car owners purchase aftermarket key fobs to save money and avoid dealer charges. These key fobs from the aftermarket are usually less expensive however they must be programmed to work with your vehicle by a professional. This is typically done by a locksmith, however it can take a bit longer. A locksmith might also charge a fee for travel to your work or home location, or may need you to drive your vehicle to their shop.

If you have the owner's guide for your car, you can also try programming your own aftermarket fob. Many car owners have found success with this technique, although it can be difficult to implement correctly without the aid of a manual. You can find step-by-step instructions in the owner's manual or on the internet.


Aside from the basic key fob you can also purchase laser-cut or "sidewinder" keys. These keys are difficult to duplicate and provide more security. These keys feature side grooves only made by dealerships with specialized equipment. Switchblade keys are also available. keys, which have an shank that is tucked into the fob when not being used.

You can also buy a smart fob that is a more sophisticated key fob. They have a microprocessor that communicates with the car when they are near. This reduces the risk of car theft by only allowing your key to start the engine when it's within close proximity of the car's computer. The cost of these kinds of keys can range between $200 and $500, dependent on the dealer and the location. Some dealers will program the smart key for you at no cost, while others may charge fees.

Smart Keys

Key fobs today do so much more than unlock doors and open vehicles. Certain key fobs can park your vehicle in a tight area for you, by connecting to vehicle sensors and using GPS data. This feature is typically found in high-end vehicles, but not in all.

The fobs also serve other purposes they can also be used for, like locking and unlocking doors, turning on lights and opening the trunk remotely. They're a convenient and burglar deterrent however, they're expensive to replace or reprogram if they fail.

Prices for programming and replacing keys can vary widely based on the kind of vehicle, its features and the place where it is done. It is crucial to consider these elements carefully when deciding on a service provider for this job. If you're not sure of the best option, you might consider asking your family and friends for recommendations, or reading online reviews to find the best price.

It is best to purchase a new key fob from the dealership or manufacturer. This will guarantee that you receive the correct part for your car. Aftermarket fobs are readily available, but they may not function as well, or have the same compatibility issues. Furthermore, some fobs from the aftermarket might require special programming tools that only dealers can access.

You can reduce some costs associated with reprogramming by taking preventive measures, such as ensuring that your keys are compatible with your car and having a spare at all times. If you do end up needing replacement keys it is possible to save money by having the fob reprogrammed at the same time it is replaced.

You can also save a significant amount of money by buying your key fob from a reputable source that offers authentic OEM parts. Many auto locksmiths recommend that you use only OEM fobs because they are specifically designed for the model and make of your vehicle to ensure proper function and compatibility.

Transponder Keys

Many modern cars are built with key fobs which do more than lock and unlock your doors. Certain key fobs come with a transponder chips inside them that communicates with your vehicle to inform it to begin when the fob is within range. Key fobs with transponder chips cost more than traditional keys, as they require a special programming process in order to work. Locksmiths who have the right equipment are able to program them, but it is usually handled by the dealership. The cost of replacing and reprogramming the typical key fob with transponder could range from $150 to $250.

Hardware stores can copy the basic key fob for less than $50. However it's only useful when the original is lost. You'll still need a conventional key to unlock your car, however.

If your key fob isn't functioning properly, the first step in diagnosing the issue is to test the battery. It's simple to replace these tiny batteries, but you should be careful not to damage the casing. Use a coin or screwdriver to break the key fob off. Remove the old battery and note the orientation. The new battery should be placed in the same orientation as the old one.

Key fobs that combine the mechanical key and transponder typically cost the most to replace and program because they have more complex features. These fobs can be used for locking and unlocking doors, starting your car remotely, and opening the trunk. describes it tend to be switchblade type that allow you to tuck into the blade when don't require it.

Key fobs of this kind are typically the most expensive, particularly when they're from a luxury brand that come with top-of-the-line security systems. Kelley Blue Book contacted dealerships in the US to find estimates on programming and replacing the various types of fobs. They found that they charge between $200 to $500. Some dealerships, like those for BMW and Mercedes-Benz will only permit their customers to have their key fob replaced at the dealership.

Keys for Aftermarket

A key fob emits radio signals that connects to a receiver unit inside your car. This allows you to unlock and start your car. While you may find fobs from the aftermarket that are branded as compatible with your car but there is a possibility that they will not function correctly. The reason for this is that each manufacturer of cars uses a different radio frequency for their fobs. If you buy an aftermarket key, it could not function properly.

A professional locksmith can help you save money and ensure that the replacement key fob is an authentic OEM part. They can also install batteries and assist you in programming the fob into your car's system for less than what a dealership charges. The price of a new fob will differ based on the manufacturer and features, so you should do your research.

While you can find low-cost fobs online and at big-box stores, the best option is to buy genuine car keys at an auto dealership. These are designed by the automaker and have a greater time-frame than the cheaper options. They are typically made of stronger materials and come with better security features in comparison to the aftermarket fobs which are susceptible to damage by extreme temperatures or water.

If you purchase a new or used car make sure to check the owner's manual for directions on how to replace a key fob battery in your car. A simple coin-shaped battery usually costs less than $10, and you can replace it in a matter of minutes. If you own an electronic key fob, you will need to take your spare to a dealer to be programmed, which is more expensive.

Most locksmiths will reprogram aftermarket keys that meet certain standards that are set by automakers. A locksmith in Boston states, for instance that they are capable of working with GM or Ford keys without any issues. But they typically cannot use aftermarket fobs for Audi or other European models, and Genesky states that even a dealership cannot work with those kinds of vehicles, since the digital encryption of keys cannot be programmed at the retail level.

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