2017 Chevrolet Silverado 1500: Battery Size & Specs

Quick answer

• BCI Group Size: H6 / Group 48
• Cold Cranking Amps (CCA): 615-730 CCA
• Reserve Capacity (RC): ~120-140 minutes
• Battery Type: AGM (Absorbent Glass Mat) is highly recommended, especially for higher-trim models with extensive electronics or start-stop technology.
• Terminal Layout: Top-post, with the positive terminal on the right (Standard SAE posts).
• Physical Dimensions (approximate): 11" L x 7" W x 7.5" H (278mm x 175mm x 190mm)

Replacement battery options

When it's time to replace the battery in your 2017 Silverado 1500, you have several excellent options from reputable brands. Given the truck's electrical demands, especially with features like infotainment systems, advanced driver-assistance systems, and potential for start-stop technology, opting for a high-quality AGM battery is a wise investment. Here are a few popular choices:

• Interstate MTX-48/H6: A direct-fit AGM replacement known for its reliability and strong warranty.
• Optima DH6 YELLOWTOP: A high-performance dual-purpose (starting and deep-cycle) AGM battery, ideal for trucks with heavy accessory loads like winches, aftermarket lighting, or audio systems.
• DieHard Platinum AGM H6: A premium AGM battery offering a long lifespan and excellent performance in all climates.
• Odyssey Performance Series ODP-AGM48 H6 L3: A rugged, military-grade AGM battery built for extreme durability and power.
• ACDelco 48AGM: The original equipment (OE) choice, ensuring a perfect fit and meeting GM's exact specifications.

AGM vs flooded — which does this vehicle need?

The 2017 Chevrolet Silverado 1500, particularly in its higher trim levels (LTZ, High Country) and those equipped with the eAssist mild-hybrid system or start-stop functionality, came from the factory with an AGM battery. This is due to the increased electrical demands of modern vehicles. AGM batteries are better equipped to handle the frequent, deep cycling caused by features that draw power when the engine is off. They are also more resistant to vibration, have a lower self-discharge rate, and are spill-proof, making them safer overall.

While a conventional flooded lead-acid battery of the correct group size may fit and start the truck, it will likely have a significantly shorter lifespan and may struggle to power all the vehicle's modules, potentially leading to mysterious electrical gremlins, warning lights, or feature malfunctions. For this reason, an AGM battery is strongly recommended for all 2017 Silverado 1500 models.

Post-installation relearn / reset procedure

After replacing the battery on your 2017 Silverado 1500, you may need to perform a simple relearn procedure to ensure all systems function correctly. This is because the vehicle's computer (ECU) "learns" the characteristics of the battery over its life. A new battery can cause a "Check Engine" light or other warnings if the system isn't reset.

The most critical system is the Battery Sensor Module. While some sources suggest the vehicle will "relearn" the new battery's state of charge over several hours of driving and key cycles, the official GM procedure often recommends a reset using a professional scan tool. However, a common DIY method involves these steps:

1. With the vehicle off, let it sit for at least 30 minutes with the key fob far away to allow all modules to go to sleep.
2. Start the engine.
3. Let the vehicle idle for at least three minutes.
4. The "Check Engine" light or "Battery Saver Active" message should clear. If it doesn't, the system may need to be reset with a scan tool at a qualified shop.

Your radio presets and other settings should be retained, but it is a good idea to check them after the replacement.

Signs of a failing battery

Be on the lookout for these common indicators that your Silverado's battery is on its way out:

• Slow or labored engine crank: The most obvious sign. The engine turns over sluggishly, especially on cold mornings.
• Dimming lights: Headlights or interior lights dim when you start the engine or use power windows.
• Warning lights: A battery or check engine light may appear on the dash.
• Clicking sound when turning the key: A rapid clicking noise indicates the battery has enough power to engage the starter solenoid but not enough to turn the engine over.
• Swollen or leaking battery case: Any physical deformity or corrosion around the terminals is a clear sign of failure.

Common battery issues for this generation

The 2014-2018 generation of Silverado 1500s are known for their sophisticated electrical systems, which can sometimes lead to battery-related issues. A common complaint is premature battery failure or "parasitic draw," where an electrical component continues to draw power after the truck is turned off. This can be caused by faulty modules, aftermarket accessories that were improperly installed, or software glitches. If you find your new battery is draining quickly, a parasitic draw test performed by a technician can identify the culprit.

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