🔧 Yukon - Battery Replacement

Replacing your Yukon’s battery is a straightforward job: remove the hold-down, disconnect the cables, swap in the new battery, and reconnect in the correct order. Doing it right prevents electrical damage and avoids accidental short circuits.

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

Assumption: your Yukon uses a single under-hood battery.

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⚠️ Safety & Precautions

• ⚠️ Turn ignition fully OFF, remove key/fob from vehicle, and keep it away from the SUV.
• ⚠️ Disconnect the negative (-) cable first and reconnect it last to reduce short-circuit risk.
• ⚠️ Do not let a tool touch the battery terminal and metal body/engine parts at the same time.
• ⚠️ Batteries are heavy and contain acid; wear gloves and safety glasses.
• ⚠️ If your Yukon has an AGM battery (Absorbed Glass Mat, a sealed heavy-duty type), replace it with the same type.

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🔧 Required Tools

You'll need the following tools for this repair:

• 10mm socket
• 13mm socket
• 3/8" drive ratchet
• 6" extension (3/8" drive)
• Torque wrench (3/8" drive, inch/pound or Nm capable)
• Battery terminal brush
• Trim clip tool
• Work gloves
• Safety glasses
• Fender cover

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• 12V battery (correct OE size for Yukon) - Qty: 1
• Battery terminal corrosion pads (felt washers) - Qty: 2
• Battery terminal protectant spray - Qty: 1

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📋 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.
• Make sure all lights are OFF and doors are closed so modules can go to “sleep” (wait about 2 minutes).
• If you want to preserve radio presets, you can write them down first.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Access the battery

• Open the hood and locate the battery on the passenger-side front area of the engine bay.
• If there’s a plastic cover or air inlet snorkel in the way, release the clips with a trim clip tool and loosen any fasteners using a 10mm socket.

Step 2: Disconnect the negative (-) cable

• Use a 10mm socket to loosen the negative terminal bolt (marked “-” or with a black cable).
• Lift the cable off the battery and tuck it aside so it cannot spring back onto the terminal.
• Tip: Wrap the cable end with a rag.

Step 3: Disconnect the positive (+) cable

• Flip open the red protective cap on the positive terminal.
• Use a 10mm socket to loosen the positive terminal bolt and remove the cable.
• Move the positive cable aside so it cannot touch metal parts.

Step 4: Remove the battery hold-down

• At the base of the battery, remove the hold-down bolt using a 13mm socket, 3/8" ratchet, and 6" extension.
• Lift out the hold-down bracket and set it aside.

Step 5: Remove the old battery

• Lift the battery straight up and out (it’s heavy; use good lifting posture).
• Set it on the ground upright. Do not tip it.

Step 6: Clean and prep the tray and terminals

• Inspect the battery tray for corrosion. Clean the area as needed.
• Use a battery terminal brush to clean the inside of the cable ends until the metal looks bright.
• Install battery terminal corrosion pads on the new battery posts if you’re using them.

Step 7: Install the new battery

• Place the new battery into the tray in the same orientation as the old one.
• Reinstall the hold-down bracket and tighten with a 13mm socket.
• Final tighten with a torque wrench: Torque to 15 Nm (11 ft-lbs).

Step 8: Reconnect cables (positive first)

• Install the positive (+) cable first and tighten using a 10mm socket, then torque with a torque wrench: Torque to 17 Nm (13 ft-lbs).
• Close the red protective cap over the positive terminal.
• Install the negative (-) cable last and tighten using a 10mm socket, then torque with a torque wrench: Torque to 17 Nm (13 ft-lbs).
• Lightly spray terminals with battery terminal protectant spray.

Step 9: Reinstall any covers/snorkels

• Reinstall any plastic covers or intake snorkel pieces removed earlier using the trim clip tool and 10mm socket.

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✅ After Repair

• Start the engine and confirm normal cranking (strong, quick start).
• Check that no battery cables can move by hand; they should be snug.
• Verify electrical items: headlights, power windows, radio, and HVAC.
• If a warning light appears, shut off and recheck terminal tightness and polarity.

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💰 DIY vs Shop Cost

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

DIY Cost: $180-$350 (parts only)

You Save: $70-$150 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.

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🎯 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.