The 2013 GMC Terrain uses a standard 12-volt automotive battery. For most replacements, the common Group Size is 75 (often listed as 75/H6) with about 700–750 cold-cranking amps (CCA), but the exact size depends on your engine and options—check the battery label or the owner's manual for the precise specification.
Because the Terrain was offered with different engines and features, the exact battery size and CCA can vary by trim and production date. To confirm the right battery, compare the current battery’s group size and CCA printed on the label, or consult GM's parts catalog using your VIN. You can also refer to the owner's manual for the recommended specification.
Identifying the right battery for your Terrain
To make sure you buy the correct replacement, follow these steps to identify the proper battery size and type for your 2013 Terrain.
- Look at the current battery’s label for the Group Size (also called battery size), CCA, RC (reserve capacity), and terminal configuration.
- Check the vehicle’s Owner’s Manual or the inside of the driver’s door jamb for the recommended battery specification.
- Use your VIN to pull up the exact OEM battery from GM’s parts catalog or a trusted retailer’s parts lookup.
- Note whether your model uses a standard flooded lead-acid battery or an optional AGM (absorbent glass mat) battery, which is less common but available for some configurations.
- Match the terminal layout (top-post vs. side-post) and the overall dimensions to ensure proper fit in the battery tray.
By verifying these details, you ensure compatibility and reliable starting performance for your Terrain.
Replacement and installation tips
When replacing the battery, follow these practical steps to ensure a safe and proper installation.
- Park on a level surface, engage the parking brake, and turn off the ignition and all electrical accessories.
- Disconnect the negative (-) terminal first, then the positive (+) terminal to avoid short circuits.
- Remove the old battery from the tray, inspect the tray for damage or corrosion, and clean as needed.
- Install the new battery with the same orientation as the OEM unit, secure the tray, and attach the positive terminal before the negative.
- Tighten terminal clamps to the manufacturer’s torque specification and reconnect any electrical leads or brackets you removed.
- Verify the battery is charging and delivering proper voltage (about 12.6V at rest; 13.8–14.4V when the engine is running) and recycle the old battery at an approved facility.
Following these steps helps prevent electrical issues and ensures the new battery fits correctly and performs as expected.
Summary
In short, the 2013 GMC Terrain runs on a 12-volt lead-acid automotive battery. The most common replacement size is Group 75 (H6) with roughly 700–750 CCA, though the exact size can vary by engine and equipment. Always verify the battery label, consult the Owner’s Manual, or use a VIN-based parts lookup to confirm the correct group size, CCA, and terminal configuration before purchasing.
Can a GMC Terrain drive in the snow?
Even if you do get stuck, a quick switch into off-road or terrain mode disables the traction control, allowing the tires to spin freely and helping you power out of troublesome spots. As Brian put it, these features make the Terrain a smart choice for driving in snowy, blizzard conditions.
What battery goes in a 2013 GMC Terrain?
DieHard Platinum AGM – Battery : H6 Group Size, 760 CCA, 950 CA, 120 Minute Reserve Capacity (Part No. H6-AGM)
What type of battery does a GMC Terrain use?
DieHard Gold – Battery : H6 Group Size, 750 CCA, 935 CA, 115 Minute Reserve Capacity (Part No. 48H6)
What kind of battery does GMC use?
ACDelco Batteries are the only batteries backed by GM.


