Why doesn’t my Sierra 2500 HD battery stay charged?

A car battery that needs to be jump-started every time is as good as dead. The battery might be old. Or, you may have been leaving your car doors ajar and the dome lights on during the night. Stop by for a free battery test at your favorite Firestone Complete Auto Care and get a handle on your car battery’s health.

What do you do with my dead Sierra 2500 HD battery?

We’ll recycle your car battery for you!

What’s the cost of DieHard batteries for GMC Sierra 2500 HDs?

Get affordable prices on GMC Sierra 2500 HD batteries by using one of our limited-time battery deals. Plus, all DieHard car batteries come with a free replacement warranty and extra coverage with DieHard Assurance.

How long do car batteries last?

The typical 12-volt car battery may last three to five years, depending on the type of battery, the driving conditions, and how well the battery is maintained.

Why is there white, flaky stuff around my Sierra 2500 HD’s battery post?

The white, crusty stuff that can accumulate around Sierra 2500 HD car battery terminals is called corrosion. It is caused by a chemical reaction between the battery acid and the air, which creates a white, powdery substance that can build up on the terminals over time. Corrosion can interfere with the flow of electricity between the battery post and the car's electrical system, sometimes leading to poor electrical performance, difficulty starting, and even premature battery failure.

How do I remove corrosion from my Sierra 2500 HD car battery?

Regularly inspecting and cleaning your battery terminals will help keep your Sierra 2500 HD’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.

Who carries Sierra 2500 HD batteries near me?

At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install Sierra 2500 HD 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 GMC Sierra 2500 HD Batteries

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Get a New GMC Sierra 2500 HD Battery

Don't let a failing battery slow you down. Shop replacement batteries for 2003 GMC Sierra 2500 HDs today and schedule a quick installation at Firestone Complete Auto Care.

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Battery Size & Replacement for 2003 GMC Sierra 2500 HD

Not sure what battery to get for your GMC Sierra 2500 HD? Use the following chart to find information on GMC Sierra 2500 HD battery size and cold cranking amps.

Battery	Engine	Warranty		Cold Cranking Amps
75-2	V8/6.0L	Replacement 24 months	Performance months	650
78FT-2	V8/6.0L	Replacement 36 months	Performance months	800
78-AGM	V8/6.0L	Replacement 36 months	Performance months	740
75-2	V8/6.6L	Replacement 24 months	Performance months	650
78FT-2	V8/6.6L	Replacement 36 months	Performance months	800
78-AGM	V8/6.6L	Replacement 36 months	Performance months	740
78-1	V8/8.1L	Replacement 24 months	Performance months	700
78FT-2	V8/8.1L	Replacement 36 months	Performance months	800
78-AGM	V8/8.1L	Replacement 36 months	Performance months	740

BATTERIES
V8/6.0L - Battery: 75-2 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 650
V8/6.0L - Battery: 78FT-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
V8/6.0L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740
V8/6.6L - Battery: 75-2 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 650
V8/6.6L - Battery: 78FT-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
V8/6.6L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740
V8/8.1L - Battery: 78-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 700
V8/8.1L - Battery: 78FT-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
V8/8.1L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740

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Shopping for GMC Sierra 2500 HD Car Batteries

Sadly, your GMC Sierra 2500 HD won't last forever. Neither will its battery. On average, auto batteries last anywhere from three to five years. You want to replace your 2003 GMC Sierra 2500 HD battery before it fails and leaves you stranded. Watch for signs that your current battery is getting too old or too weak. A sluggish engine start, a blinking battery or check engine light, swollen battery case, corrosion-covered posts, and subpar electrical performance can all signal that your battery is on its last leg.

Or, you can get a complimentary battery check at your nearest Firestone Complete Auto Care. With best-in-class tools we can tell you how much "life" is left in your battery. Drop in for a free battery check and, if necessary, a battery replacement to help keep your 2003 GMC Sierra 2500 HD running! Automotive batteries are just one of our many areas of expertise. Our technicians are familiar with GMC-specific recommendations for Sierra 2500 HD battery CCAs and reserve capacity. Get help identifying the type and size of battery that's best for your Sierra 2500 HD, and schedule an appointment today for a quick car battery replacement.

Find the Right DieHard Battery for Your Sierra 2500 HD

Your GMC Sierra 2500 HD deserves the best, which is why we carry just that. Your vehicle needs a reliable, durable and powerful battery in even some of the toughest conditions. DieHard batteries shatter expectations using the latest innovative technology to meet the growing power demands of modern vehicles They're no ordinary battery, they're extraordinary. Choose a DieHard battery for your GMC Sierra 2500 HD and get behind the wheel with confidence. Why? Because your battery will perform when you need it. That’s why you should choose batteries from Firestone Complete Auto Care.

After Buying 2003 GMC Sierra 2500 HD Battery

Got a new car battery installed in your 2003 GMC Sierra 2500 HD? Good thinking! Now, help it last longer and stay charged by caring for it from the get-go. flipping the dome lights and headlights off when exiting the car, cutting back on unnecessary short trips, cleaning your battery posts, and not using electronics such as the radio and power outlets when the engine is off.

Commonly Asked Sierra 2500 HD Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have a Sierra 2500 HD-specific battery question, pay us a visit. Our expert techs have the answers you need.

Why doesn’t my Sierra 2500 HD battery stay charged? A car battery that needs to be jump-started every time is as good as dead. The battery might be old. Or, you may have been leaving your car doors ajar and the dome lights on during the night. Stop by for a free battery test at your favorite Firestone Complete Auto Care and get a handle on your car battery’s health.
What do you do with my dead Sierra 2500 HD battery? We’ll recycle your car battery for you!
What’s the cost of DieHard batteries for GMC Sierra 2500 HDs? Get affordable prices on GMC Sierra 2500 HD batteries by using one of our limited-time battery deals. Plus, all DieHard car batteries come with a free replacement warranty and extra coverage with DieHard Assurance.
How long do car batteries last? The typical 12-volt car battery may last three to five years, depending on the type of battery, the driving conditions, and how well the battery is maintained.
Why is there white, flaky stuff around my Sierra 2500 HD’s battery post? The white, crusty stuff that can accumulate around Sierra 2500 HD car battery terminals is called corrosion. It is caused by a chemical reaction between the battery acid and the air, which creates a white, powdery substance that can build up on the terminals over time. Corrosion can interfere with the flow of electricity between the battery post and the car's electrical system, sometimes leading to poor electrical performance, difficulty starting, and even premature battery failure.
How do I remove corrosion from my Sierra 2500 HD car battery? Regularly inspecting and cleaning your battery terminals will help keep your Sierra 2500 HD’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.
Who carries Sierra 2500 HD batteries near me? At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install Sierra 2500 HD batteries, and our Firestone Direct mobile vans can even come to you for added convenience. Check out our mobile battery services to learn more.