Quick answer: Battery Replacement on a 2008–2017 Buick Enclave is rated Easy and takes about 30-90 minutes. You'll need 2 tools for this job, and parts cost about $180. This guide walks you through the full job step by step, including the mistakes to avoid.
| Part Name |
Part Number |
Price |
Buy |
| Replacement 12-volt battery for 2008-2017 Buick Enclave; verify group size, CCA, terminal layout, and VIN fitment |
— |
$180.00 |
|
| Anti-corrosion terminal protectant or felt washers (optional) Optional |
— |
$8.00 |
|
About prices: shown prices are typical retail averages and change frequently; cheaper alternatives may be available. Confirm the current price before buying.
💡 Pro tip: Order all parts at once to save on shipping
Step-by-Step Instructions
Follow these steps carefully
1
Verify battery fitment and charging symptoms
The 2008-2017 Buick Enclave hides its battery in an unusual spot, so confirm fitment before buying: it takes a Group 48/H6 battery, and AGM is the right call — the factory rating is around 660 CCA, with 730-800 CCA AGM replacements common. Do not put a non-vented flooded battery in this location; because the battery sits inside the cabin, it must have a vent tube connection routed to the outside of the vehicle. Watch for symptoms like slow cranking, dim lights, repeated jump starts, or a charging warning, and get a free battery and alternator test at a parts store first, since a failing alternator or parasitic draw can look like a dead battery.
🔧 Mechanic's note — Tom Becker
I've done this job enough times to say it plain: Do not put a non-vented flooded battery in this location; because the battery sits inside the cabin, it must have a vent tube connection routed to the outside of the vehicle.
2
Make the vehicle safe
Park the Enclave on level ground, shift to Park, set the parking brake, and turn the ignition fully off. Because you will be working inside the cabin, ventilate the vehicle and wear gloves and eye protection; remove metal jewelry.
3
Disconnect the old battery
Then loosen and remove the positive (red) clamp. Unbolt the hold-down clamp and lift the old battery straight up out of the floor compartment using its handles — it is heavy, so mind your back in the confined space.
4
Compare and install the replacement
Compare the new battery to the old one: Group 48/H6, AGM construction, same dimensions, posts on the same sides, and CCA matching or exceeding the original. Lower the battery into the floor compartment, seat it flat, and refit the hold-down clamp securely.
5
Reset and verify operation
Close the compartment cover, replace the floor rugs, and start the Enclave to confirm strong cranking with no warnings. Take a short drive and confirm everything electrical behaves normally.
🔧 Mechanic's note — Ray Delgado
I've learned this one the hard way — close the compartment cover, replace the floor rugs, and start the Enclave to confirm strong cranking with no warnings.
All Done!
Test your repair before closing everything up. If something doesn't work right, double-check your steps.
⚠️ Common Mistakes to Avoid
- • Buying by appearance instead of group size, CCA, polarity, and hold-down fit
- • Shorting the positive terminal to the body with a metal tool
- • Lifting the battery by damaged terminals or leaving it unsecured
- • Skipping battery registration, window/clock resets, or charging-system checks when required
- • Assuming a new battery fixes a parasitic draw or charging fault
