Why doesn’t my S15 Jimmy battery stay charged?

A car battery that needs to be jump-started every time is as good as dead. The battery may be too 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 do you do with my old S15 Jimmy battery?

We recycle it! Nearly 100% of all lead-acid batteries are recyclable.

How much do DieHard batteries cost for your GMC S15 Jimmy?

Get affordable prices on GMC S15 Jimmy 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.

What is the average lifespan of a car battery?

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 S15 Jimmy’s battery post?

The white, flaky stuff that can build up around your S15 Jimmy’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 S15 Jimmy, 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 corrosion off my S15 Jimmy vehicle battery?

Regularly inspecting and cleaning your battery terminals will help keep your S15 Jimmy’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 S15 Jimmy?

You can shop for S15 Jimmy batteries at your local Firestone Complete Auto Care, and our expert technicians will even handle the installation. Don’t have time to visit our store? Our Firestone Direct mobile vans can come to you for battery installations! Learn more about our mobile battery services.

1988 GMC S15 Jimmy Car Batteries

Get a New GMC Battery

Get a Battery for Your GMC S15 Jimmy

Don't let a failing battery slow you down. Shop replacement batteries for 1988 GMC S15 Jimmys today and schedule a quick installation at Firestone Complete Auto Care.

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The Right Battery Size for a 1988 GMC S15 Jimmy

Need more info about GMC S15 Jimmy batteries? Use this chart to find the right battery size and CCAs for your GMC S15 Jimmy.

Battery	Engine	Warranty		Cold Cranking Amps
78-1	L4/2.5L	Replacement 24 months	Performance months	700
75FT-3	L4/2.5L	Replacement 36 months	Performance months	700
78-AGM	L4/2.5L	Replacement 36 months	Performance months	740
75-2	V6/2.8L	Replacement 24 months	Performance months	650
78FT-2	V6/2.8L	Replacement 36 months	Performance months	800
78-AGM	V6/2.8L	Replacement 36 months	Performance months	740
78-1	V6/4.3L	Replacement 24 months	Performance months	700
78FT-2	V6/4.3L	Replacement 36 months	Performance months	800
78-AGM	V6/4.3L	Replacement 36 months	Performance months	740

BATTERIES
L4/2.5L - Battery: 78-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 700
L4/2.5L - Battery: 75FT-3 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 700
L4/2.5L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740
V6/2.8L - Battery: 75-2 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 650
V6/2.8L - Battery: 78FT-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
V6/2.8L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740
V6/4.3L - Battery: 78-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 700
V6/4.3L - Battery: 78FT-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
V6/4.3L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740

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Shopping for GMC S15 Jimmy Car Batteries

Your S15 Jimmy doesn't have an expiration date, but its battery does. The average car battery lasts three to five years. Don’t get stranded by your S15 Jimmy’s car battery. Replace it regularly instead! Watch for signs that your current battery is getting too old or too weak. A slow engine crank, an illuminated check engine light or battery signal, swollen battery case, corroded battery posts, and subpar electrical performance may all indicate that your battery is on its last leg.

Or, you can get a complimentary battery check at your nearest 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 necessary, a battery replacement to help keep your 1988 GMC S15 Jimmy running! Car batteries are one of our many specialties! Our technicians are familiar with GMC-specific recommendations for S15 Jimmy battery CCAs and reserve capacity. Get help choosing the battery size that fits your car perfectly, and schedule a weekday or weekend battery replacement service for your car.

Find the Right DieHard Battery for Your S15 Jimmy

We only want what’s best for your GMC S15 Jimmy, which is why we carry just that. Your S15 Jimmy needs a reliable, durable and powerful battery in even some of the toughest conditions. DieHard S15 Jimmy batteries surpass expectations using the latest innovative technology to meet the expanding power requirements of new vehicles. Don't call a DieHard battery ordinary. It's an extraordinary battery. Buy a DieHard battery for your GMC S15 Jimmy and have the peace of mind that performance will be there when you're counting on it. That’s why you should choose batteries from Firestone Complete Auto Care.

Caring for a New GMC S15 Jimmy Battery

Did you recently have a new 1988 GMC S15 Jimmy car battery installed? Congrats! 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, decreasing the number of short trips you take, keeping your battery posts clean, and not using electronics such as the radio and power outlets when the engine is off.