The 2020 GMC Acadia uses a standard 12-volt automotive battery. It is not a hybrid or electric-vehicle battery. The exact group size and capacity depend on the engine and trim, so you should verify the label under the hood or in the owner's manual for your vehicle.
Battery type and specifications
The Acadia relies on a conventional 12-volt lead-acid battery for starting and electrical systems. There is no high-voltage traction battery in this model year, as it is powered by internal combustion engines (2.0L turbo or 3.6L V6) rather than a plug-in hybrid or electric drivetrain.
Before listing common configurations you might encounter, here is what to know about the battery in this vehicle.
- Battery type and voltage: 12-volt lead-acid, typically sealed and maintenance-free in modern vehicles.
- Common group sizes (engine/trim dependent): Group 48/H6 or Group 49 are among the sizes used on GM mid-size SUVs, but the exact size for your Acadia should be confirmed on the battery label.
- Capacity and rating: designed to supply adequate cold-cranking amps (CCA) for the engine and reliable electrical performance; the specific CCA rating depends on the chosen group size.
- Where to find the spec: the battery label under the hood lists the Group Size, CCA, and reserve capacity; the owner's manual also notes the recommended replacement battery.
Conclusion: Always verify the exact specification on the battery label or with a dealer when purchasing a replacement to ensure proper fit and performance.
What to know when replacing
When replacing the battery, choose a unit that matches or exceeds the original rating, ensure the terminals are oriented correctly, and secure the hold-down clamp to the recommended torque. If you live in extreme climates, you may opt for a battery with higher CCA or performance characteristics, though AGM (absorbent glass mat) batteries are less common on standard non-hybrid Acadias unless specifically advised by a parts professional.
How to find the exact spec for your vehicle
To confirm your specific 2020 Acadia battery size and rating, take these steps:
- Inspect the battery label under the hood for the Group Size, CCA, and reserve capacity.
- Check the owner's manual under Specifications > Electrical System or Battery for the recommended replacement battery.
- Consult a GMC dealer or parts department with your VIN for an exact match.
These steps help ensure you purchase a battery that fits physically and meets the vehicle’s electrical demands.
Summary
In summary, the 2020 GMC Acadia uses a standard 12-volt lead-acid automotive battery. The precise group size and capacity vary by engine and trim, so verify the battery label or the manual to ensure you buy the correct replacement. For the exact Group Size and CCA, check the under-hood battery label or contact a GMC dealer.