Omar Khalid
If your Subaru key fob is malfunctioning, it may be time to replace the plastic shell or get an entirely new fob. Before doing so, it's important to determine whether the issue is with the fob's exterior or interior components. If the buttons are sticking or the shell is damaged, you can simply replace the shell while keeping the interior intact. This can be purchased online for as little as $20. However, if the fob is broken or misplaced, you may need to replace the entire unit. This can be done through a dealership, which can be costly, or by purchasing a blank fob online and having a locksmith program it for you at a lower cost. It's worth noting that some older Subaru models can be programmed at home without professional assistance.
| Characteristics | Values |
|---|---|
| When to replace the key fob battery | When the range decreases, the performance is inconsistent, multiple presses are required, or the dashboard indicator shows a low battery. |
| Battery replacement process | Remove the metal key by pressing the small silver tab on the back of the key fob. Insert a flathead screwdriver or the key into the gap between the fob's front and back, and gently twist to open it. Locate the battery and remove it from its tabs. Insert a new battery, ensuring it's placed correctly, and close the fob securely. |
| Key fob reprogramming process | Open the key fob to access the transmitter circuit board and note down the first 8-digit number visible. Close the fob and sit in the driver's seat with all doors closed. Open and close the driver's side door using the door button. Insert the key into the ignition and turn it to the accessory mode. |
| Key replacement options | Dealerships like Hiley Subaru offer replacement keys and key fobs under warranty and programmed correctly for specific vehicles. Aftermarket keys are also available online but may not offer the same benefits as dealership keys. |
| Key types | Simple key, key with a remote fob, key fob with push-button start and keyless entry. |
| Key fob shell replacement | The shell of the key fob can be replaced while keeping the interior intact in case of wear and tear or malfunctioning buttons. |
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What You'll Learn
Identify the type of key fob
If you need to replace the plastic shell of your Subaru key fob, it's important to first identify the type of key fob you have. This is because the process of replacing the shell may vary depending on the specific model and design of your key fob. Here are some common types of Subaru key fobs:
Simple Key:
This is the most basic type of key, which does not offer remote access features. It requires you to insert the key into the ignition to start the vehicle. This key contains a security chip and uses the key cylinder to lock and unlock the vehicle manually.
Key with a Remote Fob:
This type of key fob allows for keyless entry, enabling you to lock, unlock, and sometimes even set off your car alarm remotely. This type of key fob has been popular in Subaru models since the 1990s.
Key Fob with Push-Button Start and Keyless Entry:
This is an upgraded version of the remote fob, offering not only keyless entry but also a push-button start. This means you can start your vehicle with the click of a button, without needing to insert a key.
Teardrop-Shaped Key Fob:
This type of key fob has a distinct teardrop shape and is typically found in older Subaru models. It lacks an emergency key release mechanism. The battery replacement process for this type of fob may differ from newer models.
Rectangular Key Fob:
The rectangular key fob is a newer design, often found in more recent Subaru models. It has a bulging rectangular shape and usually requires professional programming if it needs to be replaced.
Oldest Subaru Fob:
The oldest Subaru key fobs have an exposed metal key with buttons. They feature a second, smaller casing inside the exterior fob casing. To replace the battery, you'll need to open both casings.
To identify the type of key fob you have, you can refer to your Subaru owner's manual. It will provide detailed information about your specific key fob, including the shape, features, and battery replacement instructions. Additionally, the manual will guide you through the correct steps for battery replacement and any other maintenance tasks.
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Remove the metal key
To remove the metal key from your Subaru key fob, start by locating the small silver tab on the back of the key fob. Press or push this tab to release the metal key. In some models, the metal key will always be displayed.
Once the metal key is released, you can gently twist it to open the key fob cover. If your key fob is one of the older, teardrop-shaped models, you will need to pry open the exterior casing to access the battery. These models have a second, smaller casing inside the exterior fob casing. You will need to press on the small tabs on this interior casing to open it up.
After opening the key fob, you can remove the old battery and replace it with a new one. Make sure that the correct side is facing up before closing the interior casing and snapping everything back together.
It is important to note that the process of removing the metal key may vary slightly depending on the model of your Subaru key fob.
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Open the key fob
To open the key fob of a Subaru car, the process depends on the model of the car and the design of the key fob.
For the latest 2032-battery key fobs, which are rectangular in shape, you need to first put on gloves to protect the circuitry. Then, on the back of the key fob, push the small silver tab to release and pull out a metal key. Insert the tip of the key or a flat-head screwdriver into the gap between the front and back of the key fob. Gently twist to pry the fob apart.
For the 2025-battery key fob, which has a teardrop shape, locate the niche in the seam between the front and back of the key fob. Insert a small flat-head screwdriver into the niche and twist to pop open the key fob.
For the 1620-battery key fob, the process is similar to the 2025-battery version. Gently pry the fob apart from the seams on the side of the case using a screwdriver. There is a small indent near the key-ring hole to guide your screwdriver.
Once the case is opened, you will be able to see the battery in its mounting slot. Take note of the polarity and gently lift the battery out with your screwdriver, being careful not to damage any electrical leads.
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Replace the battery
If your Subaru key fob is not working, it may be time to replace the battery. This is a quick and easy process that you can do yourself, without the need for any tools.
First, you need to open the key fob. For the older teardrop-shaped fob, you will need to pry open the exterior casing to access the battery. For the newer, bulging rectangular fob, there is a small silver tab on the back of the key. Press this tab to release and pull out the metal key.
Once you have opened the key fob, you can remove the old battery. Be sure to take note of which side is facing upward, as the new battery will need to be inserted the same way. Touch the new battery as little as possible.
Now, simply pop the new battery into place and snap the two halves of the fob back together. Re-insert the metal key and everything should be secure.
If you are unsure what type of battery you need, check your owner's manual. This will tell you which battery to buy and will also include instructions on how to replace it. You can also keep a spare battery in your glove compartment, so you can replace it right away when you notice the battery starting to weaken.
If replacing the battery does not fix the problem, you may need to replace the entire fob.
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Program the new key fob
To program a new key fob for your Subaru, you'll first need to identify the type of key fob you have. Teardrop-shaped key fobs can be programmed at home, while rectangular-shaped key fobs need to be programmed by a certified dealership.
If you have a teardrop-shaped key fob, follow these steps:
- Open the key fob case and locate the transmitter circuit board inside.
- Identify the first of the two 8-digit numbers on the board and write it down.
- Close the key fob case.
- Sit in the driver's seat and ensure all doors are closed and the vehicle is off.
- Open the driver's side door and unlock all doors using the door button control.
- Close the driver's side door.
- Insert the key into the ignition and turn it to the "on" position without starting the engine.
- Quickly turn the key back to the "off" position ten times in a row.
- Listen for the instrument panel to emit a chime on the tenth turn.
- Open and close the driver's side door again.
- Remove the key from the ignition and listen for the chime.
- Open and close the door a final time.
- Press the lock/unlock button on the key fob.
- After about five seconds, the key fob should start working.
- Test the key fob by pressing the buttons.
If you have a rectangular-shaped key fob, you will need to visit a certified dealership to have it programmed. This process may vary depending on your location and the specific model of your Subaru. Some dealerships offer instructions on their websites, so you can check if your local dealership provides this information online. Additionally, some dealerships may charge a fee for programming the key fob, so it is recommended to call ahead and inquire about any potential costs.
Alternatively, you can purchase a new key fob online or from a local shop that has an OB reader and can program keys for Subarus. Mobile locksmiths that specialize in car keys may also be able to program the key fob for you at a lower cost than a dealership.
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Frequently asked questions
You can replace the plastic shell of your Subaru key fob by purchasing a new shell and pad. You can then transfer the internal components of the fob into the new shell.
You can buy a replacement shell online.
A replacement shell and pad for a Subaru key fob typically costs around $20.
Yes, you can replace the battery in your Subaru key fob. The process varies depending on the model, but it typically involves opening the fob with a small screwdriver, removing the old battery, and inserting a new one.
There are several signs that your Subaru key fob battery may need replacing, including decreased range, inconsistent performance, and multiple presses required to get a response.
