Last updated on July 12th, 2023 at 09:42 am

You’re reading this article today because you’re having difficulty figuring out how to replace your Subaru Key Fob battery. This will be simplified for you. This could be that your Subaru key fob isn’t working the way it should and probably needs a replacement. 

Indeed, modern electronic key fobs provide superior functionality and convenience compared to a standard manual key. But in the long run, the key fob battery will run out of charge and need replacement. 

The truth is that replacing the Subaru Key Fob battery can be very easy and can be done in about 5 minutes. Replacing the battery is simple and requires a few basic tools.

If you have noticed that the key fob is starting to work intermittently, it’s a good sign that the battery is about to die. Remember that it’s your key fob responsible for communicating with your vehicle, and it uses the battery. 

How long your key fob’s battery last will depends on how you use it. So, your Subaru key fob battery probably needs replacement when you have to press the lock button many times for it to work. 

However, the average life span of a key fob battery is about 1 to 2 years. So if yours is fully discharged, then replacement is the only option. But how can you get a quality battery to replace it? 

To help you, I have carefully picked out my 10 best Subaru key fob battery replacement options, so you don’t have to worry about researching. 

But first, we must look at the various kinds of batteries Subaru key fob uses.

What Kind Of Battery Does A Subaru Key Fob Take?

As long as you make use of your Subaru key fob, replacing the battery is inevitable, especially when you’ve discovered signs of imperfect operations. 

If this is the case, you shouldn’t wait too long to replace the battery. To replace the battery, you need to know what kind of battery a Subaru key fob takes.

Note that the most common batteries used by Subaru key fobs are CR2025 and CR2032 3-Volt. But if you need more time, check your car’s manual so you can know the exact type to buy. 

After you open the Subaru key fob, examine the battery inside the remote very well, and you’ll notice numbers printed on it, such as 2025, 2032, or 2016. This number indicated is the type you need to buy for replacement.

To replace it yourself, ensure you observe the side the battery faces, which should be + side up or down. 

However, replacing a fob battery is very easy. Once you have the right tools and a clear understanding of the process, it can be done within a few minutes. Continue reading to learn how to change your Subaru key fob yourself.

What Happens When Key Fob Battery Is Low?

Nothing much will happen when the key fob battery goes low, but the transmitting power will reduce as the fob battery grows weaker.

It simply means that the range you can turn on your car will be reduced. To turn on your car, you have to get closer to the car for the fob to work properly. 

And if your car uses a push button start, the car may not work if you place the smart key fob in your pocket or will purse if the fob battery is low.

How Do I Know If My Key Fob Battery Is Dying?

When you want to start your car’s ignition, the key fob lights up on the small LED light when pressed. But if the LED light doesn’t light up, it simply means that the key fob battery is dead or something is wrong. 

However, there are signs that your key fob’s battery will show when dying. So below are some of them:

1. Low Signal Strength

Indeed, you were able to use your key fob to unlock your car from a distance from the parking lot. But when the battery starts getting low signal strength, you should know that your key fob battery is dying. So if you have to get closer than 20 feet to unlock your car, it is time to replace your key fob battery.

2. Over-Clicking

Any key fob that is working properly should be able to unlock car doors with a single push of the button. But if you have to be clicking repeatedly because you weren’t sure your vehicle locked the first time, then know that your key fob battery may need replacement.

3. Inconsistent Results

When you start having inconsistent results as you try turning on your car from a distance, then know it’s a sign of your battery dying. You can examine it to ensure that everything is fine. However, having inconsistent res during operation means you may need a new battery replacement.

11 Subaru Key Fob Battery Replacement 

The modern Subaru car keys have many features that enable car owners to unlock or lock the car wirelessly. This key makes use of batteries, and this is what powers the circuit inside it. But these batteries’ power does not last forever, so they would need replacement. To replace these dead key batteries, you must know which good and quality ones to buy. Here are 11 Subaru key fob battery replacements.

#1. Duracell 2032 3V Lithium Coin Battery

As you know, Duracell is a well-known quality brand. Their 2032 3-Volt Lithium Coin Battery has excellent battery life and is one of the most dependable 3-volt batteries on the market. Duracell battery comes in child-safe packaging and is coated using a non-toxic, bitter-tasting coating, discouraging children from putting the batteries in their mouths. This makes it a better option for parents living with their kids. This battery has a 10 years lifespan in storage, which makes it a CR 2032 battery that is hard to top.

Features

• It comes with child-secure packaging, making it nearly impossible to open without scissors.
• It has a reliable power that powers the everyday key fob and essential home devices, including remote controls, thermometers, glucose monitors, and many more.
• It has a bitter taste that discourages children from swallowing it. Duracell 2032 lithium coin batteries are the only batteries with a non-toxic, bitter coating to prevent swallowing.
• It is designed to last long for dependability. Duracell lithium coin batteries were made to deliver long-lasting power for electronic devices. 
• It has a guaranteed 10 years of storage power. This means that it holds power for up to a decade in storage. You can be assured that these batteries will be ready whenever you need them.
• Duracell is your #1 trusted battery brand. Duracell has 2032 3v lithium coin batteries in 1-, 2-, 4-, 6-, and 8-count packs.

You should look up the current price of this fob battery in this store.

2. Discount Keyless CR2032 Key Fob Remote Battery

Here comes another quality car key battery, called CR2032 Key Fob Remote Battery from Discount Keyless. This product is the best option if you’re searching for a keyless battery for your Subaru car key fob. 

This is a brand that comes from Discount Keyless, which is one of the top-rated brands that market car key batteries today. It comes in a pack of two fob batteries and is easy to install. However, one good thing about this battery is that you don’t have to re-program the key after installing it. 

Features

• The battery comes in a pack of 2
• It has guaranteed quality
• You don’t need to reprogram it after installing
• It has a 220mAh battery capacity
• It is a Lithium battery

You should check out the price of this fob battery in this store.

#3. Energizer 3V CR 2032 Batteries

Another key fob battery you can use for your Subaru key is the Energizer 3-Volt CR 2032 Batteries. This comes in packs of four, six, and ten and provides you with the best battery life, especially if you want CR 2032 batteries. 

The Energizer 2032 Lithium 3-Volt Coin Batteries are also very dependable for vital electronic devices such as heart rate monitors and key fobs. This battery brand is a great option for people who want to store it for later use since it lasts for up to 10 years while stored.

Features

• It contains 6 Energizer 2032 Lithium 3-Volt Coin Batteries
• It provides you with dependable and long-lasting performance in specialty devices such as heart rate monitors, keyless entry systems, remotes, glucose monitors, toys, and games
• It can hold power for up to 10 years while being stored. This ensures you have Lithium Coin Batteries that are ready when you needed. 

You can look up the current price of this battery on the product page in this store.

4. Panasonic CR2032 3V Lithium Coin Battery

Here’s another option for the Subaru key fob. It is a car battery from the Panasonic brand, which is not well-known. But in the past few months, they have had great customer reactions to this battery with consistently positive reviews. This is one of the reasons it was added to this list. 

It is a good CR032 battery recommended by Subaru keyless entry cars. The good news about this battery is that it can power your smart key for a longer time, so the battery doesn’t easily get drained. You don’t have to re-program the key after installation because it was specially designed to avoid such hassles.

 Features

• The battery last longer
• It comes in a pack of 2
• It comes in three size variants 1x, 2x, and 5x
• It is affordable

I recommend you look up the current price for this fob battery in this store.

#5. Rayovac CR2032 3V Batteries, 3 Volt Battery Lithium Coin, 2 Count

Here’s one of the top-rated Subaru key fob battery brands on the market today. Rayovac brand has a good legacy and reputation in manufacturing and marketing top-quality car key batteries. I recommend this battery for your smart keys as it can power your key for a longer period.

The battery comes in a pack of three batteries produced for easy installation. 

The advantage of this product is that it is made to be installed without re-programming. The packaging is second to none, and this is to ensure the product remains fresh for a long time. 

Pros

• It comes in a pack of 3
• It is very affordable
• Coming from a reputed brand
• There’s no need for re-programming 

Cons

The battery gets drained within a month of using it.

I recommend you look up the current price for this fob battery in this store.

#6. Procter & Gamble DURDL2032B2PK Duracell Coin Cell General Purpose Battery

The Discount Keyless brand has designed yet another great product that can be used in your Subaru key battery as it is one of the top-rated available on today’s market. This battery comes in a pack of five batteries which is designed to serve the requirements of your smart key fob. 

It is a CR2032-specified car key battery meant to power your Subaru smart key for a long time. This battery was designed in such a way that it makes it easy to install. There would be no need to re-program it after it has been installed. 

Pro

• It is packaged in a pack of 5
• The battery is available in 3 variants, CR2025, CR201, and CR2032
• It is very easy to install
• There’s no need to re-program

Cons

The battery drains more quickly.

I recommend you look up the current price for this fob battery in this store.

#7. Loopacell CR2412 CR 2412 Lithium 3V 2 Batteries

This is another powerful battery that can be used in car security. It is one of the best-recommended batteries for your Subaru key fob because of its long-lasting battery life. It can be used for car alarms, organizer key fobs, backup batteries for PDAs, cameras, glucometers, electric thermometers, and many more.

Features

• It is a super and leak-free loopacell high-quality CR2412 Lithium 3V battery. It comes with 5 Pcs, which are sealed in a card, so the batteries don’t touch each other as they drain.
• The batteries is equivalent to the CR-2412, CR2412, CR 2412, DL-2412, DL2412, DL 2413 
• The batteries have a 100% guarantee to be of the best quality. This means that your purchase is risk-free.
• It works for various devices, such as car alarms, organizer key fobs, backup batteries for PDAs, cameras, glucometers, electric thermometers, video cameras, card radios, electronic watches/clocks, and many more. 

I recommend you look up the current price for this fob battery in this store.

#8. GMCELL CR2032 3V Lithium Battery, CR 2032 Button Cell Batteries 

GMCELL’s lithium coin batteries are known to be perfect batteries meant for pervasive energy-draining appliances. This is due to its high energy density, super storability, high nominal voltage 3V, and low self-degradation rate. 

This CR2032 3V lithium battery 5 pack from GMCELL is an ideal coin cell replacement meant for Subaru key fobs and in small electronics such as remote control, watch, toys, key fob, laser pointers, and calculators. All GMCELL lithium coin battery comes out with advanced, automatic, innovative product lines in the same OEM factory as other big brands.

Features

• It offers great dependable and long-lasting power for your coin-battery-operated items. 
• You use it to replace the non-rechargeable coin cell size of DL2032, BR2032, and ECR2032. 
• Its voltage is 3 Volt, and it has a 230mAh battery capacity.
• Designed for your keyless entry, pedometer, hygrometers, monitors, and other household items
• It is a small, round CR2032 Battery that comes with a diameter of 20mm, and a thickness of 3.2mm.
• It is very reliable and durable under the temperature range from -22º to 140º F
• It has an 8-year leak-free shelf life, ideal for watches, car key fobs, calculators, Apple TV remotes, scales, calculators, door remotes, and many more.
• It is also ideal for car key fob replacements such as Honda, Subaru, Toyota, Audi, Ford, Nissan, BMW, Jeep, VW, Prius, and Dodge.
• It has a 5-count retail packaging with easy-to-open stamp holes
• There’s no need for scissors when opening it

2 Subaru Forester Key Fob Battery

For your key fob battery to last depends on several factors, such as your climate, how often it is used, and if you’ve had the battery replaced. However, a new Subaru forester key fob battery should last an average of 3 years before any replacement. 

But in case you recently noticed your Subaru forester key fob battery isn’t working correctly, then the battery could be the problem. Here is 2 Subaru forester key fob battery you can buy for replacement.

#9. Energizer 2025 Batteries, Lithium CR2025 Battery, 2 Count

Energizer brand is one of the best battery brands for the Subaru Forester. It is a 2025 Lithium Coin 3-Volt Battery that delivers long-lasting, and dependable power for your coin-battery-operated appliance. It can be used for heart rate or glucose monitors, keyless entry systems, remotes, key fobs, toys and games, watches, and even more specialized devices. 

Features

• It is a 2025 Lithium Coin 3-Volt Battery that delivers long-lasting, and dependable power for your coin-battery-operated appliance.  
• Its operating temperature is about 30C to 60C
• It has power that can last for up to 10 years when stored, ensuring you have Lithium Coin Batteries that will be ready when needed.
• The cell size: 2025; IEC: CR2025; 
• Battery Type: Lithium Coin 
• Its Voltage: 3
• It s also ideal for L12, 208-205, DL2025, SB-T14, and 5003LC replacement
• The lithium battery can withstand a wide range of temperatures from -22º to 140º F.

I recommend you look up the current price for this fob battery in this store.

#10 PKCELL CR2025 Battery, 2025 3V Lithium Button Cell Battery

This is another wonderful 3-pack of 15 pcs CR2025 lithium button cell batteries that would bring new life to your Subaru forester key fob. 

It has been tested under strict quality control standards, CE and ROHS certified. This is to ensure a longer battery lifespan.

One good thing about this battery is that it is a low self-discharge, properly stored battery that can be up to 5 years of shelf life.

It is a 2025 battery meant for 3D glasses, Subaru forester key fobs, car remotes, scales, sound bar remotes, garage door openers, watches, LED tea lights, lasers, vibes, toys, calculators, and so on. The quality of this battery is second to none.

Pros

• The Voltage is 3V
• Battery made by PKCELL
• battery Size is 20mm x 2.5mm
• Battery Capacity is 150 mAh
• The battery Type: Lithium Button Cell Battery
• It’s a total replacement for CR2025, ECR2025, DL2025, LM2025, BR2025, KL2025, 2025 KCR2025, L2025, KECR202 , 5004LC, E-CR2025, L14
• It can be used in watches, LED tea lights, lasers, vibes, car remote controls, calculators, toys, etc.

Cons

• It is a non-rechargeable battery.
• It doesn’t use different types of batteries together.
• It doesn’t store the battery in direct light, high-humidity environments, and high temperatures.

I recommend you look up the current price for this fob battery in this store.

FAQ on Subaru Key Fob Battery Replacement.:

Can I Replace A Key Fob Myself?

Yes, it is possible to replace your vehicle’s key fob battery. This is because replacing it is very simple, and I have been able to provide you with a guide. All you need is the right tools and a new battery, replacing it is simple.

Does Autozone Replace Key Fobs?

Yes, AutoZone can help customers to replace key fobs for automotive vehicles such as Ford, Toyota, Honda, Subaru, Dodge, Mercedes, GMC, Kia, and others. Their services include automotive key blanks, re-programming, key duplication, transponder keys, and key fobs. 

How Long Does A Key Fob Battery Last?

Like every other battery, the one in your vehicle’s key fob can malfunction and require you to replace it. A vehicle key fob battery should last between three and four years. However, a few signs will alert you whenever your key fob battery is dying.

Can You Drive Subaru Without Key Fob?

Yes, it is possible. But the engine won’t be able to drive when it is off without having the key fob and pressing the start button. This means that the transmission will be locked out. 

What Happens If My Key Fob Battery Dies While Driving?

In case while driving, your key fob dies, nothing will happen. You can still continue driving your car simply because the key fob is designed only to unlock and start your car. After the car has started and is in motion, the key fob can’t affect the ignition or engine while driving. 

Can You Drive With A Low Key Fob Battery?

Yes, you can. Whenever your car’s key fob battery is weak, you’ll still be able to drive a car, shift gears, and even park. 

This is because driving your car does not require a key fob for the smooth running of the car after you have started the engine. 

Once it has started, you can drive for as long as possible without the key fob or remote. But ensure that the car doesn’t go off.

How Do I Start My Subaru With A Dead Key Fob?

Using a remote key fob is beneficial until they fail, and the possibility of entering your car is slim when they do. Even if you get inside, how would you start your car? Remember that you will be able to press the START button. 

If you notice that your Subaru key fob battery is dead and want to start your car, you may be able to unlock your car remotely if you have subscribed to StarLink. 

You’ll have access to the features using the MySubaru App when you do. To subscribe to the program, visit the StarLink website.

Why Is My Key Fob Not Unlocking My Car?

One of the reasons your key fob isn’t unlocking your car is that the battery is dead or too weak to unlock it. You will need to replace the key fob battery if this is the issue.

Another possible reason is the operating distance which may be too far from your vehicle. You can move closer and press the button on your key fob.

Check the key fob’s physical casing if it still doesn’t work. If you notice any visible damage, replacing your key fob is the only option for it to function properly again.

How Can I Start My Car Without A Key Fob?

If you’ve locked yourself out of your car because of a dead key fob, you may still be able to get going. Here’s what you should do.

#1. SWAP THE BATTERY

You have prepared for work and want to hurry to the office, and you find out your key fob isn’t working, what could be the problem? You may have had a dead battery, and getting it to work again might not be that easy. Replacement could be what you need, which can be done by swapping the battery.

So to access the battery, you’ll have to open the fob. Normally, a small screwdriver is needed to pry the battery cover open. Fob batteries look like a silver buttons. Check for the numbers embedded in the battery and match those to a replacement battery.

#2. UNLOCK THE DOOR REMOTELY

A lot of car manufacturers are now offering remote door unlocking services that can allow you inside your car in minutes once your key fob battery is disabled, and you can’t go inside. But if your car manufacturer doesn’t provide this advanced remote unlocking service, you can still get help from a nearby mechanic workshop. The only thing needed for these services to work is setting them up ahead of time, which requires a PIN.

Can You Drive A Keyless Car Without The Key Fob?

Yes, you can still drive it as long as it runs. When the engine is still running, it can still be operated without the Key fob. You can still shift from park to driving without any issues. Your car will often just beep without the key being present.

How Far Will My Car Go Without The Key Fob?

Note that there’s no limit to how far a vehicle without the key fob can go. This means that entering and starting can go on without the key fob being present in the car. However, this will depend on the fuel in your car tank. Note that the car will not stop until it runs out of fuel. 

So with enough fuel in the car, you can go as far as you want to go. But know that it will be impossible to start your car ignition once you turn the car OFF.

Conclusion

One good thing about modern cars is using keyless entry available on the market due to key fobs. Key fobs allow you to lock the doors from a distance away, which means that key fobs can be a huge benefit. However, these key fobs can start misbehaving sometimes. When it does, replacing it will help to boost the efficiency of your fob, especially when it is not functioning properly.

Buying a reliable and quality key fob battery for replacement can be cumbersome; hence, you can use this article as your guide. This article provides you 11 Best Subaru key fob battery replacements, which means you won’t be able to guess what battery to buy.

There are tips on the best ways to change the key fob, and I have provided you with steps for replacing the Subaru key fob battery. But if you discover that the problem may not be the battery after replacing it, it could likely be from the fob itself. This means that the best option is to get the fob replaced.

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