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

A battery is in its final hour when it will no longer hold a charge. The battery may be too old. Or, you’ve been leaving the doors slightly open and the dome lights on during the night. Stop by for a complimentary battery check at your nearest Firestone Complete Auto Care to learn more about the state of your battery.

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

We’ll recycle your car battery for you!

How much will replacing my GMC Sierra 2500 HD’s battery cost if I get a DieHard battery?

GMC Sierra 2500 HD 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?

Car battery lifespan varies depending on a few factors, including driving conditions, accessories, how well it’s maintained, and the type of battery. On average, a car battery lasts about three to five years.

What is the white, crusty stuff around my Sierra 2500 HD’s battery post?

The white, flaky stuff that can build up around your Sierra 2500 HD’s battery terminals is known as corrosion. Acid leaking from your vehicle’s battery post can have a chemical reaction with the air, leading to an accumulation of the white, powdery substance over time. Corrosion can affect the flow of electricity between your battery and the electrical system in your Sierra 2500 HD, possibly causing issues with electrical performance and starting. If left unaddressed for long enough, it may even cause your battery to prematurely fail.

How do I clean a corroded Sierra 2500 HD battery terminal?

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 sells Sierra 2500 HD batteries near me?

When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install Sierra 2500 HD batteries at our stores nationwide — and our Firestone Direct mobile vans can provide convenient on-site battery services. Learn more about our mobile battery services and book an appointment.

2015 GMC Sierra 2500 HD Batteries

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Get a Battery for Your GMC Sierra 2500 HD

Don’t let a dead battery stop you. Shop replacement car batteries for your 2015 GMC Sierra 2500 HD at Firestone Complete Auto Care.

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The Right Battery Size for a 2015 GMC Sierra 2500 HD

Need more info about GMC Sierra 2500 HD batteries? Use the following chart to find information on GMC Sierra 2500 HD battery size and cold cranking amps.

Battery	Engine	Warranty		Cold Cranking Amps
48H6	V8/6.6L	Replacement 36 months	Performance months	730
H6-AGM	V8/6.6L	Replacement 36 months	Performance months	760
48H6	V8/6.0L	Replacement 36 months	Performance months	730
H6-AGM	V8/6.0L	Replacement 36 months	Performance months	760

BATTERIES
V8/6.6L - Battery: 48H6 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 730
V8/6.6L - Battery: H6-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 760
V8/6.0L - Battery: 48H6 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 730
V8/6.0L - Battery: H6-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 760

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Buying a Replacement Battery for GMC Sierra 2500 HD

Sadly, your GMC Sierra 2500 HD won't last forever. Neither will its battery. The average car battery lasts three to five years. Check your battery regularly and replace it as needed so it doesn’t leave you and your GMC Sierra 2500 HD stranded. Watch for signs that your current battery is getting too old or too weak. A slow engine crank, an illuminated battery or check engine light, bloated battery case, corroded battery posts, or faded headlights may all indicate that your battery needs attention.

Plus, at Firestone Complete Auto Care, we’ll test your battery for free. With computerized testing we can see how much charge is left in your battery. Drop in for a free battery check and, if needed, a replacement battery for your 2015 GMC Sierra 2500 HD. Automotive batteries are just one of our many areas of expertise. Our expert technicians understand GMC service recommendations for Sierra 2500 HD battery cold cranking amps and reserve capacity. Get help choosing the battery size that matches your vehicle, and schedule a weekday or weekend battery replacement service for your car.

Is There a DieHard Battery for Sierra 2500 HDs?

We only want what’s best for your GMC Sierra 2500 HD, which is why we only carry top-of-the-line replacement parts and batteries. You need a reliable, durable and powerful battery in even some of the toughest conditions. DieHard batteries shatter expectations using state-of-the-art advancements to satisfy the increasing power requirements of modern vehicles Don't call a DieHard battery ordinary. It's an extraordinary battery. Choose a DieHard battery for your GMC Sierra 2500 HD and have the peace of mind that performance will be there when you need it most. That’s why you should choose batteries from Firestone Complete Auto Care.

Caring for a New GMC Sierra 2500 HD Battery

Got a new car battery installed in your 2015 GMC Sierra 2500 HD? Congrats! You can give your new battery a head start with proper care and attention. Give your new battery a hand by cutting back on unnecessary short trips, cleaning your battery posts, and avoiding radio and electronic component use when the engine is off.