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Do I need a new key if I replace the ignition lock cylinder?

If you need to replace the ignition lock cylinder in your vehicle, you may or may not need a new key depending on the specific circumstances. The answer can vary based on factors like the make and model of your car, the type of ignition system, and whether the new lock cylinder is programmed to work with your existing key.


When You Need a New Key


In some cases, replacing the ignition lock cylinder will require you to get a new key as well. This is often the case if the new lock cylinder is not compatible with your existing key. The new lock cylinder may need to be programmed to work with a new key, which means you'll have to get a replacement key made.


When You Don't Need a New Key


However, in other situations, you may be able to use your existing key even after replacing the ignition lock cylinder. This is more likely if the new lock cylinder is designed to be a direct replacement for the old one and is programmed to work with your current key. Some vehicles also allow the new lock cylinder to be re-programmed to work with your existing key, avoiding the need for a replacement.


Factors to Consider


To determine if you need a new key, consider the following:


  • Make and model of your vehicle: Certain car brands and models may require a new key when replacing the ignition lock cylinder.

  • Type of ignition system: Vehicles with more advanced ignition systems, like transponder keys, are more likely to need a new key programmed.

  • Source of the new lock cylinder: If you purchase the new lock cylinder from the dealer, it may be pre-programmed to work with your existing key. Aftermarket parts may not have this compatibility.

  • Cost and convenience: Getting a new key made can be more expensive and inconvenient than simply reusing your existing key, if possible.



In summary, whether you need a new key when replacing the ignition lock cylinder depends on the specific details of your vehicle and the replacement part. It's best to consult with a professional mechanic or the vehicle manufacturer to determine the best course of action for your situation.

Can I replace ignition switch without key?


Use pliers or a screwdriver to remove the ignition cylinder once it is loose. It is important to note that removing the ignition cylinder without a key can be a difficult and time-consuming process, and should only be attempted by experienced professionals or those with advanced mechanical skills.



How much does it cost to replace the ignition key cylinder?


The average cost for an Ignition Lock Cylinder Replacement is between $246 and $295. Labor costs are estimated between $70 and $89 while parts are priced between $176 and $207.



Does a new ignition cylinder require a new key?


If you have an older model that uses a standard key, you may be able to get away with using the existing key when replacing the ignition switch. But if your vehicle has a specialised security system or a more complex electronic design, chances are you will need to get a new key for the replacement.



Do cylinder locks have master keys?


There can be many levels to a cylinder master key system. A basic system is where all cylinder locks are opened by a single Master Key but each of the door cylinders is opened by its own key often referred to as the slave or differ key.



Can you just replace the lock cylinder?


To change an interchangeable lock cylinder, remove the flat screw, turn the key slightly to the right, remove the cylinder, and, turning the key back to the left, place the new cylinder.



What is the difference between rekey and replace cylinder?


Due to the extremely low price of the key pins in the locks, rekeying is almost always much cheaper than getting your locks changed. When rekeying your locks, you are only being charged for the labor, whereas when you get your locks changed, you're paying both for labor and parts.



Does a replacement ignition switch need to be programmed?


If security systems are attached to the ignition switch/assembly, then further programming is needed to recode the keys, which will add another $100 to the bill. Keep in mind, pricing will vary by location and your vehicle make and model.



Can a locksmith rekey an ignition cylinder?


At their most basic, ignition cylinders are simply locks and can be reconfigured as such. An experienced auto locksmith can take the cylinder apart and reconfigure its internal components for compatibility with a new key. The cost of rekeying your car's ignition will likely be between $120 and $225.



Can a bad ignition lock cylinder cause no start?


A bad ignition switch can cause your vehicle to exhibit symptoms like a no-start condition, stalling, intermittent loss of lighting and other accessories, silent starter motor, and difficulty in turning the key.



Can I program an ignition key myself?


If your car is equipped with onboard programming, you will be able to program a new transponder key or a keyless entry remote by yourself. If you own a newer vehicle, most likely it would not be equipped with onboard programming, and it will require a professional key programmer.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.