Why doesn’t my Envoy battery stay charged?

A battery is in its final hour when it will no longer hold a charge. It may be getting old. Or, you may have been leaving your car doors ajar and the cabin light at night. Stop by for a complimentary battery check at your nearest Firestone Complete Auto Care and learn more about your battery's charge.

What happens to my old Envoy battery?

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

What’s the cost of DieHard batteries for GMC Envoys?

GMC Envoy 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 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, crusty buildup on my Envoy’s battery post?

A chemical reaction between battery acid and the air can cause a white, crusty buildup to form on the terminals of your Envoy car battery. This buildup — known as corrosion — can impede the flow of electricity and cause a range of issues, from poor performance to premature battery failure.

How do I clean a corroded Envoy battery terminal?

Regularly inspect the terminals and clean them with a mixture of baking soda and water, a wire brush, and a rag. Disconnect the battery cables before cleaning to help avoid the risk of electrical shock. Always reference and follow the instructions in your vehicle owner’s manual prior to disconnecting the battery cables.

Where can I purchase Envoy batteries near me?

When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install Envoy 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.

2003 GMC Envoy Car Batteries

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Get a Battery for Your GMC Envoy

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

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Battery Size & Replacement for 2003 GMC Envoy

Researching battery replacements for your GMC Envoy? Use the following chart to find information on GMC Envoy battery size and cold cranking amps.

Battery	Engine	Warranty		Cold Cranking Amps
78-1	L6/4.2L	Replacement 24 months	Performance months	700
78FT-2	L6/4.2L	Replacement 36 months	Performance months	800
78-AGM	L6/4.2L	Replacement 36 months	Performance months	740

BATTERIES
L6/4.2L - Battery: 78-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 700
L6/4.2L - Battery: 78FT-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
L6/4.2L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740

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Shopping for GMC Envoy Car Batteries

Sadly, your GMC Envoy won't last forever. Neither will its battery. The average car battery lasts three to five years. Don’t get stranded by your Envoy’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, swollen battery case, corrosion-covered posts, or dim headlights may all indicate that your battery is on its last leg.

Plus, at Firestone Complete Auto Care, we’ll test your battery for free. 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 needed, a replacement battery for your 2003 GMC Envoy. Automotive batteries are just one of our many areas of expertise. Our technicians are familiar with GMC-specific recommendations for Envoy battery cold cranking amps and reserve capacity. Get help identifying the type and size of battery that matches your vehicle, and schedule a fast car battery replacement at your earliest convenience.

Firestone Has DieHard Batteries for Envoys

We only want what’s best for your GMC Envoy, which is why we carry just that. Your Envoy needs a reliable, durable and powerful battery in even the most extreme conditions. DieHard Envoy batteries surpass expectations using state-of-the-art advancements to fuel the expanding power demands of modern vehicles Don't call a DieHard battery ordinary. It's an extraordinary battery. Choose a DieHard battery for your GMC Envoy and drive with confidence knowing that performance will be there when you're counting on it. That’s why you should choose batteries from Firestone Complete Auto Care.

After Buying 2003 GMC Envoy Battery

Have you recently had a fresh battery installed in your GMC Envoy? Great job! Give your new car battery the best start with proper care. You can take care of your battery by cutting back on unnecessary short trips, keeping your battery posts clean, and avoiding radio and electronic component use when the engine is off.

Commonly Asked Envoy Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have a Envoy-specific battery question, stop by your nearest store. Our technicians have the answers.

Why doesn’t my Envoy battery stay charged? A battery is in its final hour when it will no longer hold a charge. It may be getting old. Or, you may have been leaving your car doors ajar and the cabin light at night. Stop by for a complimentary battery check at your nearest Firestone Complete Auto Care and learn more about your battery's charge.
What happens to my old Envoy battery? We recycle it, taking care of both your car and the Earth.
What’s the cost of DieHard batteries for GMC Envoys? GMC Envoy 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 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, crusty buildup on my Envoy’s battery post? A chemical reaction between battery acid and the air can cause a white, crusty buildup to form on the terminals of your Envoy car battery. This buildup — known as corrosion — can impede the flow of electricity and cause a range of issues, from poor performance to premature battery failure.
How do I clean a corroded Envoy battery terminal? Regularly inspect the terminals and clean them with a mixture of baking soda and water, a wire brush, and a rag. Disconnect the battery cables before cleaning to help avoid the risk of electrical shock. Always reference and follow the instructions in your vehicle owner’s manual prior to disconnecting the battery cables.
Where can I purchase Envoy batteries near me? When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install Envoy 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.