For most GMC vehicles, a replacement 12-volt battery costs roughly $100–$200 for the battery itself, with installation bringing the total to about $150–$320. For electric GMC models, high-voltage battery packs cost considerably more and are generally covered under warranty; replacement outside warranty can run into tens of thousands of dollars. Prices vary by model, battery type, and region.
GMC gas-powered models: standard 12-volt batteries
Most GMC trucks and SUVs use a 12-volt starter battery, either lead-acid or AGM. Price depends on brand, design, and whether you buy from a dealer or an aftermarket retailer, plus labor if you have it installed.
Prices below reflect common aftermarket and dealership pricing for 12-volt replacement batteries on GMC gas models (as of 2024–2026).
- Standard 12-volt lead-acid starter battery: typically around $100–$180 before tax; OEM replacements may be $120–$200. If installed by a shop, add roughly $50–$100 for labor.
- AGM (absorbed glass mat) battery: commonly $150–$260 for the battery itself; with installation, total often $200–$320 or more.
- OEM vs aftermarket: OEM batteries tend to cost more (roughly $150–$260 for the battery alone, plus labor), while reputable aftermarket options can be cheaper (roughly $100–$180 for the battery, plus labor).
These figures can vary by GMC model, retailer, and geographic region. Some dealers may quote higher prices, and promotions can affect cost.
Electric GMC models: high-voltage battery packs
GMC’s fully electric lineup—such as the Hummer EV—uses high-voltage battery packs. Replacement costs are not common due to warranty coverage, but outside warranty the price can be substantial and varies with pack size and supplier. Warranties often cover most battery failures for many years or miles.
Prices below provide a general sense of EV-battery cost considerations (as of 2024–2026).
- High-voltage battery pack replacement: costs vary widely by capacity and supplier; estimates often place the price in the tens of thousands of dollars range, with labor adding to the total. Warranties can offset a portion of this cost depending on terms.
- Battery maintenance and charging costs: routine upkeep is minimal; typical costs come from charging and potential software updates rather than pack replacement.
In practice, EV battery replacements are relatively rare for most owners due to warranty coverage and the durability of modern packs.
Where to buy and how to shop
To get an accurate price for your exact GMC model, compare quotes from multiple sources, including dealers, independent repair shops, and auto parts retailers. EV owners should consult their dealership or the vehicle manufacturer for warranty and replacement guidance.
Summary
GMC battery costs vary widely by vehicle type and battery design. For traditional gas-powered GMC models, plan roughly $100–$260 for the battery itself, with installed total typically $150–$320. For electric GMC models, high-voltage packs are far more expensive, with replacement prices often in the tens of thousands of dollars, though warranties can offset a large portion of the cost. Always verify fit, warranty, and local pricing before purchasing, and compare multiple sources to get the best deal.