For a 2020 GMC Acadia, you’ll need a standard 12-volt automotive battery. The exact size and CCA depend on your engine and options, but most replacements use a conventional flooded lead-acid battery rated roughly 650–800 cold-cranking amps. Always confirm by checking the battery label or the owner's manual.
What the 2020 Acadia requires
Battery type and power basics
The 2020 Acadia uses a 12-volt battery to start the engine and power electronics. It does not use a high-voltage hybrid battery. The correct replacement should match the OEM specifications for size, CCA, and terminal layout. Some trims with colder climates or heavier electrical use may benefit from a higher-CCA option.
How to confirm the correct battery for your vehicle
Use these steps to verify the exact group size and electrical specs so you purchase an exact match.
- Check the existing battery label on the side or top for the group size, CCA, and RC (reserve capacity).
- Consult the owner’s manual or the GM service information for your exact vehicle specification.
- Use a parts retailer’s vehicle lookup tool by entering your year, make, model, and trim, or your VIN, to see recommended replacements.
- If in doubt, have a dealer or qualified technician read your original battery and confirm the right fit.
Verifying the group size and CCA ensures the replacement battery fits properly and charges correctly with the vehicle’s electrical system.
Flooded vs AGM: choosing the right type
The two common battery types for modern SUVs like the Acadia are conventional flooded lead-acid and Absorbent Glass Mat (AGM). The choice affects longevity, starting performance in cold weather, and resistance to vibration.
- Conventional flooded lead-acid: Usually more affordable and sufficient for most trims without start-stop systems.
- AGM ( Absorbent Glass Mat): Better resistance to vibration, slower self-discharge, and preferred for vehicles with Start-Stop or heavy electrical loads; often recommended for colder climates or extended battery life.
For most 2020 Acadias without frequent Start-Stop use, a standard flooded battery is common. If your model has Start-Stop and you want maximum longevity, an AGM replacement is a viable option.
Installation and care tips
Proper installation helps ensure reliability and battery life. Follow these guidelines when replacing the battery.
- Disconnect the negative (-) terminal first, then the positive (+). Reconnect the positive first, then the negative when installing.
- Ensure the battery tray is clean and free of corrosion; apply anti-corrosion grease to terminals if available.
- Secure the battery with the hold-down Clamp to minimize vibration.
- After installation, reset any electronic settings (radio presets, clock) as needed and check for warning lights.
Careful installation and proper terminal maintenance help prevent charging issues and extend battery life.
Where to buy and warranty considerations
Shop around for price and warranty, and consider batteries that come with a 2–3 year replacement warranty or longer. Many retailers offer free installation or testing services to verify the battery charge and fit.
Summary
The 2020 GMC Acadia uses a 12-volt automotive battery; the exact size and CCA depend on engine and options. Confirm the correct replacement by checking the existing battery’s label, the owner's manual, or a dealer/parts tool. You can choose between a conventional flooded battery or an AGM type, with AGM offering advantages in Start-Stop-equipped or cold-weather scenarios. Follow proper installation steps and consider warranty coverage when buying.
What kind of battery does a 2020 GMC Acadia take?
MTX-94R/H7. Interstate's MTX absorbed glass-mat (AGM) battery will meet or exceed your car's starting requirements while delivering premium battery performance to power all your accessories and plug ins.
What year was the worst year for GMC Acadia?
A: Potential buyers should avoid the GMC Acadia from the first generation, particularly the 2008 model year, and from the second generation, the 2012 and 2013 model years are not recommended. Additionally, the third generation's 2017 and 2018 models have had their share of issues.
Can I use a group 24 battery instead of 35?
Group-24, Group-27
The Group 24 and 27 Batteries are mostly found in older American Cars, and some Hondas, GMs and will be often used in boats. They are basically the same size except for length. Our Group-35 can be used in place of a Group-24; it is only 1-inch shorter left to right dimensions.
What battery does a GMC Acadia use?
DieHard Platinum AGM – Battery : H6 Group Size, 760 CCA, 950 CA, 120 Minute Reserve Capacity (Part No. H6-AGM)