How Much Does a New Car Key Cost?

Losing your car key can quickly ruin your day. This article provides insight into car key replacement costs, the replacement process, and troubleshooting recommendations.

Car Key Replacement Cost

Several factors affect car key replacement costs, which can range from $10 to $500. The final sum depends on the key type, as each kind has a different replacement procedure. Generally, key types can be divided into the following categories: 

• Traditional car key. A mechanical key is inserted into the ignition cylinder to start the vehicle. The key is also used to lock and unlock the car. Given this is the most rudimentary option, replacement costs are the lowest at about $10-$12.
• Remote key. It allows you to lock or unlock your car from a fair distance without physically inserting the metal key into the vehicle. Replacing it will set you back by about $20.
• Switchblade key in a key fob. Contains a spring-loaded key that folds into the fob, resembling a switchblade. Replacement usually costs around $125.
• Transponder key. A computer chip-based ignition key that leverages a wireless connection to validate that the key has the proper code to turn on the vehicle. This added security measure comes with increased technology and, as a result, an increased cost at $200-$250 to replace.
• Smart key. A proximity sensor-based key, also termed “keyless ignition.” It allows the doors to unlock when the key is nearby, and the car starts with just the push of a button. As the most technologically advanced key, a replacement would force you to spend around $320 out of pocket.

Factors Affecting Car Key Replacement

In addition to your key type, several other factors can affect the replacement cost. These include:

• Make and model of your vehicle. Every car is different, as are its features and available components. All this affects the overall price if, for instance, your key fob has extra features such as mirror folding, alarm activation, or a Bluetooth tracker, which add to replacement costs.
• The location. Depending on when and where you discover you’ve lost your key, a tow truck or locksmith has to be compensated if they have to drive a long way to your location. If they are unable to resolve the issue onsite and the vehicle is not drivable due to the missing key, it may need to be towed to a garage. The average cost to tow a vehicle is about $109.
• Time of day. If you urgently need a replacement outside the tow company’s or locksmith’s regular working hours, there’s a high chance you’ll have to pay more than the regular price.
• Key number. If you don’t have access to your car key number and the immobilizer's code, the dealer will most likely charge an extra fee to provide you with that information.
• Duplicate key. If you have an extra key in working condition, the locksmith can use it to make you a duplicate.

Replacing Your Key

Depending on your budget and timing, you can opt for one of the following options to get your car key replaced:

• Auto locksmith. The cheapest way to get your key replaced is to look for an auto locksmith. This option is also the fastest and is budget-friendly since they usually have all the equipment needed for the procedure.
• Roadside assistance. Another cheap way of getting the job done is by seeking roadside assistance. However, they may or may not be able to help you with this depending on the circumstances. 
• Car insurance providers. They can also help in the process of your car key replacement. The cost here mainly depends on their terms and conditions, and this option is expensive. On top of that, this service from the insurance company usually comes as a premium add-on, which does not apply to everyone.
• Car dealer. The most expensive yet solid option is going to a franchise dealership. The biggest con is the excessive paperwork involved, but it will resolve the issue.

Car Key Battery Troubleshooting

Many factors impact your need for car key replacement – perhaps the signal is no longer working between the key and the vehicle, or you have lost the key altogether. However, before you replace a faulty key, confirm that the key battery isn’t the issue, as battery replacement is an affordable repair that many people can easily complete on their own.

To test your car key battery:

• First, consult your owner’s manual for the recommended battery type and instructions for opening your key fob. 
• Next, open the key fob to replace the battery.
• Opening the key fob varies by key design:
  • If the key fob contains a key inside, move or swing the key out of the fob portion before attempting to access the battery.
  • For most fobs, there should be a notch to open the key fob into two pieces. Carefully use a butter knife or a flathead screwdriver to assist you in opening the key fob.
  • Other fobs may have a small screw that can be removed with a Philips screwdriver to open the fob. 
• Once opened, take note of the alignment of the current battery before removing it.
• Replace the old battery with the new one and put the key fob components back together.
• Test to see if the new battery has resolved the faulty key issue. 

The good news is that a new car key battery replacement is an affordable troubleshooting method. The potential bad news is that if the battery does not resolve the issue, then it is time to explore replacing the key which is a bigger hit to the wallet. 

Fortunately, car keys have advanced from flat pieces of metal to being accessible by smartphone. Many new models can be locked, unlocked, and started using an app on a smartphone known as a digital key. Assuming you do not misplace your phone as well, these apps are an alternative to physically replacing a key on vehicles that are digital key capable.

Summary

Car keys have evolved from a chiseled piece of metal to another technological component of your vehicle. With security and convenience advancements comes added complexity that increases repair and replacement costs. Additionally, expect to pay more if the service is completed by a dealership instead of a mechanic or locksmith. However, there are special keys that are difficult to replace, and you need to visit the dealership for those. Moreover, advanced keys featuring a fob or immobilizer chip are pricier to replace as they incur programming costs to ensure the new key correctly syncs with the vehicle. From a troubleshooting standpoint, keep in mind that a faulty key could be the result of a key battery issue rather than an issue with the key itself.

Matt Yantakosol is a lifelong automotive enthusiast and former consultant focused on the consumer aspect of the industry. He has traveled to New York, Detroit, Chicago, L.A., Paris, Geneva, Frankfurt, and Tokyo Auto Shows to track and observe the newest industry innovations. In addition to JDPower.com, Matt's writing has appeared on Pcarmarket.com.

Related Resources

• VIN Lookup
• All Cars for Sale
• Sell My Car
• Compare Cars
• Car Finder Tool
• Car Ratings
• New Car Previews
• Expert Car Reviews
• Car Trade-in Values