Why won't my Legacy battery stay charged?

A battery that won't hold a charge is almost as good as dead. It may be getting old. Or, you may have a habit of leaving your car doors open and the dome lights on during the night. Stop in for a free battery check at your local Firestone Complete Auto Care to learn more about the state of your battery.

What do you do with my dead Legacy battery?

We recycle it, taking care of both your car and the Earth.

What’s the cost of DieHard batteries for Subaru Legacys?

Subaru Legacy batteries can be affordable, especially when there's an available battery coupon. The best part is every DieHard battery comes with a free replacement warranty and extra coverage with DieHard Assurance.

How often should I replace my car battery?

You can usually get three to five years out of your car battery. However, battery type, how well you maintain your battery, and your driving habits can all affect your battery’s lifespan.

What is the white, crusty substance accumulating on my Legacy’s battery post?

If you notice white, crusty stuff around the battery terminals of your Legacy, it's likely corrosion. A chemical reaction between battery acid and the air can create a white, powdery substance that builds up over time on the terminals. This buildup can interfere with the electrical connection between the battery and your Legacy’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.

How do I remove corrosion from my Legacy car battery?

Regularly inspecting and cleaning your battery terminals will help keep your Legacy’s electrical system running smoothly. Before cleaning, reference your owner’s manual for instructions on how to disconnect the battery cables. Once the cables have been disconnected, gently clean the terminals with a mixture of water and baking soda, a wire brush, and a rag.

Where can I find a battery for my Legacy?

At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install Legacy batteries, and our Firestone Direct mobile vans can even come to you for added convenience. Check out our mobile battery services to learn more.

2003 Subaru Legacy Car Batteries

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Subaru Legacy Batteries Near You

Don’t let a dead battery stop you. Shop replacement car batteries for your 2003 Subaru Legacy at Firestone Complete Auto Care.

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Battery Size & Replacement for 2003 Subaru Legacy

Need more info about Subaru Legacy batteries? Use the following chart to find information on Subaru Legacy battery size and cold cranking amps.

Battery	Engine	Warranty		Cold Cranking Amps
26R-3	H4/2.5L	Replacement 24 months	Performance months	575
35-2	H4/2.5L	Replacement 36 months	Performance months	640
35-AGM	H4/2.5L	Replacement 36 months	Performance months	650

BATTERIES
H4/2.5L - Battery: 26R-3 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 575
H4/2.5L - Battery: 35-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 640
H4/2.5L - Battery: 35-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 650

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Shopping for Subaru Legacy Car Batteries

You can pretty much drive your Subaru Legacy until you don't want to anymore. But your Legacy's battery? Don't count on it to last forever. Generally, car batteries last from three to five years. Don’t get stranded by your Legacy’s car battery. Replace it regularly instead! Look out for symptoms of a faulty car battery. A lagging starter, an illuminated check engine light or battery signal, bloated battery case, corroded battery terminals, and subpar electrical performance can all signal that your battery needs attention.

You can also get a Free Battery Test at your local Firestone Complete Auto Care. Our equipment can see how much charge is left in your battery. Stop by for a free battery test and, if needed, get your Subaru Legacy a replacement battery. Automotive batteries are just one of our many areas of expertise. Our expert technicians understand Subaru service recommendations for Legacy battery cold cranking amps and reserve capacity. Get help figuring out the battery size that's best for your Legacy, and schedule a fast car battery replacement at your earliest convenience.

Why Choose a DieHard Battery for Your Legacy?

We know what’s best for your Subaru Legacy, which is why we carry just that. Your Legacy needs a reliable, durable and powerful battery in even some of the toughest conditions. DieHard batteries shatter expectations using the latest innovative technology to fuel the expanding power demands of modern vehicles A DieHard battery isn't an ordinary car battery. It's extraordinary. Go with a DieHard battery for your Legacy and get behind the wheel with confidence. Why? Because performance will be there when you need it most. That's the kind of battery we deliver.

After Buying 2003 Subaru Legacy Battery

Got a new car battery installed in your 2003 Subaru Legacy? Great job! Now, help it last longer and stay charged by caring for it from the get-go. turning off all of the lights when you leave your vehicle, decreasing the number of short trips you take, keeping the battery posts corrosion-free, and avoiding radio and electronic component use when the engine is off.