🔧 Acadia - Battery Replacement

On your Acadia, the main 12V battery sits in the engine bay. Replacing it is mostly about disconnecting the cables in the correct order, swapping the battery safely, and securing everything so you don’t get electrical issues or a loose battery.

Difficulty Level: Beginner | Estimated Time: 0.5-1.0 hours

---

⚠️ Safety & Precautions

• ⚠️ Keep keys/fob at least 10 feet away so modules can sleep.
• ⚠️ Wear gloves and safety glasses; battery acid is corrosive.
• ⚠️ Do not let your wrench touch both battery terminals at once.
• ⚠️ Always remove the negative (−) cable first; install it last.
• ⚠️ If the new battery is AGM, replace with AGM (don’t downgrade).

---

🔧 Required Tools

You'll need the following tools for this repair:

• 10mm socket
• 13mm socket
• Ratchet
• 6-inch extension
• Torque wrench (inch-pound or Nm capable)
• Battery terminal puller (specialty)
• Battery terminal cleaning brush
• Plastic trim tool
• Shop rags
• Nitrile gloves
• Safety glasses

---

🔩 Required Parts

HowToo sells all the parts you need for this repair:

• 12V main battery (correct OE size/spec for Acadia) - Qty: 1
• Battery terminal anti-corrosion washers - Qty: 2
• Battery terminal protectant spray - Qty: 1

---

📋 Before You Begin

• Park on level ground, shift to Park, and set the parking brake.
• Turn everything off and close doors; wait 5 minutes before disconnecting (lets computers “go to sleep”).
• If you want to keep radio presets, use a 12V memory saver (a device that supplies backup power while the battery is disconnected). If you don’t have one, it’s OK—your Acadia will usually relearn settings.

---

🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Locate the battery

• Open the hood and find the battery on the driver-side of the engine bay.
• If a cover is installed, remove it using a plastic trim tool (and any fasteners you can turn with a 10mm socket if equipped).

Step 2: Disconnect the negative (−) cable first

• Use a 10mm socket and ratchet to loosen the negative terminal clamp bolt (marked “−” or black cable).
• Wiggle the clamp up and off the terminal. If it’s stuck, use a battery terminal puller (specialty) (this tool lifts the clamp off without damage).
• Tuck the negative cable aside so it cannot spring back and touch the battery.

Step 3: Disconnect the positive (+) cable

• Flip up/remove the positive terminal cover if present.
• Use a 10mm socket and ratchet to loosen the positive terminal clamp bolt (marked “+” or red cable).
• Remove the positive clamp and position it safely so it can’t touch metal.

Step 4: Remove the battery hold-down

• Use a 13mm socket, ratchet, and 6-inch extension to remove the battery hold-down bolt and bracket at the base of the battery.
• Set the hold-down parts aside where you won’t lose them.

Step 5: Remove the old battery

• Lift the battery straight up and out. It’s heavy—use proper lifting posture.
• Use shop rags to wipe the tray clean. If you see corrosion, clean it before installing the new battery.

Step 6: Install the new battery

• Place the new battery into the tray in the same orientation as the old one (terminals in the same positions).
• Reinstall the hold-down bracket and bolt using a 13mm socket and ratchet.
• Tighten with a torque wrench: Torque to 20 Nm (15 ft-lbs).

Step 7: Clean terminals and reconnect (positive first)

• Use a battery terminal cleaning brush to lightly clean the inside of the cable clamps if needed.
• Install anti-corrosion washers (if using) on the battery posts.
• Reconnect the positive (+) cable first. Tighten with a 10mm socket and then a torque wrench: Torque to 6 Nm (53 in-lbs).
• Reconnect the negative (−) cable last. Tighten with a 10mm socket and then a torque wrench: Torque to 6 Nm (53 in-lbs).
• Apply battery terminal protectant spray after everything is tight.

Step 8: Reinstall any covers

• Reinstall the battery cover using the plastic trim tool (and 10mm socket if your cover uses bolts).

---

✅ After Repair

• Start the engine and confirm you have normal cranking (no slow start).
• Check that headlights, horn, and power locks work normally.
• If you see a warning message, shut the vehicle off, wait 1 minute, and restart—many GM modules settle after a key cycle.
• If auto windows don’t one-touch up/down, relearn by fully lowering and fully raising each window using the switch.

---

💰 DIY vs Shop Cost

Shop Cost: $250-$450 (parts + labor)

DIY Cost: $180-$320 (parts only)

You Save: $70-$130 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.5-1.0 hours.

---

🎯 Ready to get started?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.