How to Change Battery In Subaru Key Fob?

Just as you need a remote to switch on your multimedia, a key fob is a must for the efficient operation of your vehicle. The Subaru key fob provides a wealth of advantages to a car owner, from lowering your windows to auto start. 

But drivers only acknowledge its worth when it stops working. Well, you don’t need to wait until the battery dies completely. Instead, be observant to spot the tell-tale signs and take action on time. 

Removing the control module and old battery and adding a new one is all it takes to change the Subaru key fob battery.  

But it doesn’t have to be an uphill battle, does it? Keep reading for an effortless battery replacement!

8 Easy Steps to Change Battery In Subaru Key Fob 

Click inconsistencies and reduced signal range indicate an underlying battery issue – probably a cell running out of power. For instance, you may note that unlocking the car was delayed for up to 3 seconds, or your vehicle’s headlights didn’t blink upon unlocking.

How to Change Battery In Subaru Key Fob?

We’ve curated some steps for an easy battery replacement. But you need a few tools before you begin. Make sure you keep a tape, a screwdriver, and a butter knife handy. 

Once you have the items, proceed with the replacement.  

1 – Detach the Mechanical Key 

To begin with, you’d need to detach the mechanical key. 

You’ll find a button mounted on the fob’s back if you look closely. 

Press this button to remove the mechanical key. If you cannot accessibly reach the tiny groove of the button, you can press it down with a screwdriver. 

As the button presses down, use the other hand to detach the mechanical key. 

2 – Use a Screwdriver to Open the Housing 

You’d need to open the housing to uncover the control module. While you can directly use the screwdriver for the purpose, it is better to tape it to prevent damaging the control module. 

Now insert the screwdriver tip to separate the housing. As soon as you split it into two, you’ll find that one houses the control module while another is used as a covering. 

3 – Remove the Control Module 

Once you separate the housing, you’ll discover the control module, including the battery. Gently lift out the module to remove and replace the battery. 

As a rule of thumb, mark the housing that features the control module. This step will make it easier for you to place back the control module. 

4 – Take out the Battery 

Generally, metal contacts keep the battery in place. You can use a butter knife to displace the battery from its position. However, do it cautiously to prevent damaging the control module. 

5 – Place the New Battery 

Although CR 2025 3V and CR2032 3V are two popularly used batteries for fob battery replacements, you can always check your vehicle’s manual to find an ideal replacement. 

Just make sure that the battery fits right and touches the metal contacts properly for effective results. 

6 – Add the Control Module 

Once you insert the new battery, place the control module into the marked housing. If you’ll return the control module to the right housing, closing it will be straightforward. Otherwise, you’ll struggle at this step – which explains why we suggested marking the relevant housing. 

7 – Cover the Housing 

Cover the housing featuring a control module using a second housing. Pressing one against another is all it takes to close the housing. 

8 – Insert the Mechanical Key and Test

Now return the mechanical key to its original place. Fortunately, it’ll be a lot easier than the removing process. 

But your battery replacement doesn’t end here. Testing the key fob is a must to ensure appropriate battery replacement. Use it to lock and unlock the car. Besides, try other features to ensure it’s working correctly. 

If the key fob fails to function, your vehicle may have an underlying issue. While it’s a bitter pill to swallow, cars – being gadgets – are prone to technical problems. 

You can always contact a professional mechanic to identify and fix the underlying vehicle problems, and if your car is insured, it’s even better; the company takes responsibility for repairs.  

Subaru Replacement Tips 

Let’s face it; anyone is rarely on budget, and key fobs are pretty expensive. Besides, they require re-programming after buying. Therefore, it is always good to know a few tips for Subaru key fob battery replacement. 

Not only will it save you money, but it’ll keep you from additional stress.  

Check Your Car’s Insurance or Warranty 

Before you purchase a new key fob, knowing if your damaged or lost key is covered under any car-related policies is essential. This cost-saving measure will cut down on or eliminate out-of-pocket expenses.

If your insurance or warranty covers the lost keys, you’ll keep yourself from replacement hassles. 

Reach Out to the Dealer 

If it’s been 5 years since you bought your car, we recommend reaching out to the dealer for a key fob battery replacement. Why? Because an aftermarket fob might not function with your vehicle. 

Yes, you can program a few fobs, but they follow up with risks. 

Generally, removing the mechanical key and programming the fob will take around an hour.

If you can afford to pay for an aftermarket fob, a dealer can adjust it for you. But, it is pretty risky and not advised by pros. 

Replace the Shell 

If your key fob is operating adequately, but there’s an issue with the shell, you can always replace it – instead of buying a new fob. 

A thin blade screwdriver is all you need to mount the new shell. It’ll only take a minute or a 2 to swap the control module from the old shell to the new. 

You can always consider the above-discussed steps for shell replacement, but you won’t need to remove the battery this time. 

Place an Online Order 

Is your car 10 years old? If yes, go for an aftermarket fob. You can order them online because they aren’t always available in the stores. 

An automotive locksmith or a professional mechanic can manage the programming for you. 

Contact the Locksmith 

If you’re not into DIYing, get in touch with an experienced locksmith. Not only will it save the costs of buying a key fob, but it’ll also minimize the time you’ll cluelessly spend trying to fix the fob. 

Because most locksmiths are mobile, driving to your office or home isn’t a problem for them. Besides, it’ll eliminate the trouble of taking your car to the locksmith’s shop. 

Pros of Having a Subaru Key Fob 

We only realize the worth of something when we lose it or it fails to function, and your vehicle key fob is no exception. This handy device saves us time and adds to our everyday convenience. 

But as with other gadgets, it may run into problems. However, you can fix the issue by replacing the battery, purchasing a new fob, or contacting a locksmith for repairs. 

Let’s see what a key fob deprives you of when it ceases to function optimally. 

  • Security. It helps you keep your car secure by locking all the doors accessibly. You do not need to reach closer to your vehicle for the purpose. Instead, you can operate it remotely – as long as you’re in range. Plus, a few models feature a code architecture as an additional security measure; you can share it with your family or friends. 
  • Operating sound. If you parked your car in a crowded parking lot, it isn’t uncommon for you to forget the precise location. Luckily, as you tap the key fob, your vehicle will produce a beeping sound that’ll help you spot it even in a crowded place. 
  • Control vehicle on the go. You do not necessarily need to reach your vehicle to control it. Instead, you can use the Subaru key fob to control your car from your bag, purse, or pocket. 
  • Smart start system. A few models feature a start system that allows you to sit inside your car and start the ignition as quickly as opening the car doors and windows. 

Which Battery Goes Into Subaru Key Fob? 

Although most car owners use the CR2032 and CR2025 3V batteries for key fobs, you must check your vehicle’s manual to discover a compatible battery type. 

Additionally, you need the right tools and guidance for a hassle-free battery replacement. 

When Does a Car Stop Responding to Subaru Key Fob? 

Generally, your car stops responding to the key fob due to a dead or bad fob battery. Apart from this, your key fob may be malfunctioning and requires replacement or repairs. 

You can always get in touch with a reliable mechanic to help you spot the cause. 

Can You Start Subaru With Dead Key Fob? 

If the battery is dead, try inserting it inside the vehicle’s proper location. Next, place your foot on the brake pedal. Now, push and hold the key fob on the starting engine button. 

Your vehicle will start as soon as the engine detects the key fob chip. 

Closing Notes 

Because the world is moving swiftly, consumers expect greater convenience and efficiency from their everyday gadgets. 

A Subaru key fob is an excellent device to operate your vehicle on the go. However, if you encounter an issue with its operation, follow the steps discussed above for a quick battery replacement. 

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