🔧 Enclave - 12V Battery Replacement

Replacing the 12V battery restores reliable starting and prevents low-voltage electrical issues (slow crank, warning lights, or random module errors). On your Enclave, the battery is in the engine compartment and is held down with a clamp bracket.

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

---

⚠️ Safety & Precautions

• ⚠️ Turn ignition OFF, remove the key/fob from the vehicle, and keep it at least 10 feet away.
• ⚠️ Wear eye protection and gloves; batteries can vent acid and explosive gas.
• ⚠️ Disconnect negative (-) first and reconnect it last to prevent accidental short circuits.
• ⚠️ Do not allow tools to touch the positive terminal and any metal at the same time.
• ⚠️ Battery disconnect is recommended; you may lose radio presets and clock settings.

---

🔧 Required Tools

You'll need the following tools for this repair:

• Safety glasses
• Nitrile gloves
• 10mm socket
• 13mm socket
• 3/8" drive ratchet
• 6" extension
• Torque wrench 5-50 Nm
• Battery terminal brush
• Fender cover
• Memory saver 12V OBD-II (optional)

---

🔩 Required Parts

HowToo sells all the parts you need for this repair:

• 12V battery (Group 94R/H7 size) - Qty: 1
• Battery terminal anti-corrosion felt washers - Qty: 2
• Battery terminal protectant spray - Qty: 1

---

📋 Before You Begin

• Park on level ground, shift to Park, and set the parking brake.
• Open the hood and install a fender cover to protect paint.
• If you use a memory saver 12V OBD-II (a small device that keeps vehicle settings powered), plug it in before disconnecting the battery.
• Tip: Take a photo of the battery area first.

---

🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Access the battery

• Open the hood and locate the battery in the engine compartment.
• If there’s a top cover or air snorkel in the way, remove its fasteners using a 10mm socket and 3/8" ratchet, then lift it out.

Step 2: Disconnect the negative (-) battery cable

• Use a 10mm socket and 3/8" ratchet to loosen the negative (-) terminal clamp.
• Twist and lift the clamp off the post, then tuck it aside so it cannot spring back.
• Torque to 10 Nm (89 in-lbs) when reinstalling.

Step 3: Disconnect the positive (+) battery cable

• Use a 10mm socket and 3/8" ratchet to loosen the positive (+) terminal clamp.
• Remove the clamp from the post and position it safely away from the battery.
• Torque to 10 Nm (89 in-lbs) when reinstalling.

Step 4: Remove the battery hold-down clamp

• At the base of the battery, remove the hold-down bolt using a 13mm socket, 6" extension, and 3/8" ratchet.
• Lift out the clamp/bracket and set it aside.
• Torque to 25 Nm (18 ft-lbs) when reinstalling.

Step 5: Remove the old battery

• Carefully lift the battery straight up and out. Batteries are heavy—use good lifting posture.
• Set the old battery on the ground in a stable spot.

Step 6: Clean and prep the terminals

• Use a battery terminal brush to clean corrosion from the cable clamps.
• Install anti-corrosion felt washers (one on each post) if you’re using them.
• Tip: Clean metal = better starting.

Step 7: Install the new battery

• Place the new battery in the tray in the same orientation as the old one.
• Reinstall the hold-down clamp and bolt using a 13mm socket, extension, and ratchet.
• Torque to 25 Nm (18 ft-lbs).

Step 8: Reconnect the positive (+) cable first

• Install the positive clamp fully down on the post.
• Tighten with a 10mm socket and ratchet.
• Torque to 10 Nm (89 in-lbs).

Step 9: Reconnect the negative (-) cable last

• Install the negative clamp fully down on the post.
• Tighten with a 10mm socket and ratchet.
• Torque to 10 Nm (89 in-lbs).

Step 10: Protect and reassemble

• Apply battery terminal protectant spray to help prevent future corrosion.
• Reinstall any covers/air snorkel removed earlier using a 10mm socket and ratchet.

---

✅ After Repair

• Start the engine and confirm it cranks strongly with no rapid clicking.
• Verify charging voltage if you have a meter (typically ~13.5-14.8V while running).
• Reset the clock and radio presets if needed.
• If you see warning lights after replacement, drive a short loop; many modules re-learn after a few minutes.

---

💰 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.