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How to Program a Subaru Replacement Key
If you lose your key fob, or it ceases to function the dealer will charge you to create an alternative one. You can get it done cheaper by a locksmith.
This is a frequent issue. The first step is to check the battery. Replace it with a new one that is the same type, size and voltage as the original.
How to Replace Your Keys
If your Subaru has a smart key or a transponder key, you will need to visit the dealer to program it. If your Subaru has a non-transponder metal key, you could do it yourself, with just a bit of effort and a few tools the majority of people already have in their possession.

Open the exterior case of the key fob using an abrasive screwdriver and a flathead key. Press the small tab in the seam between front and back of the key fob encasement. This will release the smaller, inner casing, which houses the battery. The casing can be opened using the screwdriver and check for the new 2025 batteries within. Remove subaru key programming , put in the new one, then snap the two sides of the fob back to each other.
Close all the doors, excluding the driver's. Turn your key in the first position, where the electrical system starts to turn on however the engine remains off, and then return to the off position. Repeat this ten times in rapid succession, and you should hear a chime. Once that happens you'll have 45 minutes to program the 8-digit serial number into your vehicle's computer by pressing the locks and unlock buttons on the driver's side door. The dome lights will blink to signal confirmation of successful programming.
Remote Keys
A remote key is a tiny remote control that can be used to unlock and start the engine of your vehicle. It can also be used to operate the alarm system and lock or unlock the doors and open the trunk. It can be programmed using a key fob, or via the mySubaru app. In certain states, you may need to purchase an ignition key and program it to conform to laws that prohibit vehicles from running while in a parking.
The service may not be affordable. Locksmiths can provide remote start services at your location. The disadvantage of using locksmiths is that their prices are usually higher than the ones that dealerships charge.
Once you find locksmiths that offer the correct remote start service it is important to confirm that they're insured and licensed before hiring them. Also, make sure that they have the appropriate equipment to perform the task. This will ensure that the locksmith is able to program your keys correctly. If they fail to do so, you may have problems in the future when trying to start your vehicle or locking yourself out. Check that the emergency key you received works on your door cylinders as well the trunk, to avoid future issues.
Transponder Keys
Subaru cars are fitted with a wide range of technologies that let you stay connected. Some of them include STARLINK Multimedia, which allows you to pair your phone and be hands-free while listening to music or watching the news and a built-in Wi-Fi hotspot that lets you stream content and a navigation system that integrates Google maps that will reveal where you are going and help you get there efficiently.
The key fobs for Subaru Forester Outback Crosstrek WRX and STI include a tiny chip that sends a signal to the engine computer of your vehicle when you use them to unlock or begin it. The chip is programmed using an unique code linked to the specific vehicle.
If you've lost your key fob or if you're not sure if it's working properly, take it to an authorized locksmith or dealer who has a code to reprogram the chip for your Subaru. They'll also cut you a new emergency key that will work in both the trunk and door cylinders. This means you'll be able to enter your vehicle even if your key fob battery is dead.
When you're at the dealer or a locksmith, make sure they are aware of your car's model, year, and VIN (Vehicle Identification Number). The VIN can be found on the dashboard, in a prominent place. It can help the locksmith or dealer verify that they have the appropriate key fob as well as key to program your Subaru.
Keyless Entry
If you have a Subaru that has keyless entry, you can open the doors of your car and start it remotely. If you're planning to go for an excursion and don't want to carry your keys, or you need to warm up your engine before driving through snow, this can be a great help.
You'll need to have an intelligent key or a replacement key fob with you in order to utilize this feature, however the procedure of programming it is quick and simple. You'll need to know the 8-digit number on your key fob. If you're not able to remember the number, note it down.
Once you've set up your pin code, you can unlock your car's doors with pressing the button on the fob of your key or on your car's trunk release or lift gate button for locking. This allows you to leave your keys in the car while you go for an excursion or take the kids out to play at the park, and when you get back, you can use the five-digit code to unlock the doors and gain entry into.
You can install keyless entry yourself if you want to. However, professional installation is recommended to ensure that the system is properly installed and operates as intended.