🔧 4Runner - Battery Replacement

Replacing the battery involves disconnecting the old battery, removing its hold-down bracket, and installing a new Group 24F battery with the terminals in the correct positions. Your 4Runner does not require battery registration or programming after replacement.

Difficulty Level: Beginner | Estimated Time: 30-45 minutes

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⚠️ Safety & Precautions

• ⚠️ Turn the ignition off and keep the key away from your 4Runner before touching the battery.
• 🧤 Wear safety glasses and chemical-resistant gloves because batteries contain corrosive acid.
• 🔥 Keep sparks, cigarettes, and flames away from the battery.
• 🔧 Never allow a metal tool to touch both battery terminals or a positive terminal and body metal simultaneously.
• ➖ Disconnect the negative terminal first and reconnect it last.
• 🏋️ The battery weighs approximately 40-50 pounds; lift it upright with both hands and a battery carrier strap.
• 💾 Disconnecting the battery may erase the clock, radio presets, and learned automatic-window positions.

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🔧 Required Tools

You'll need the following tools for this repair:

• 10mm socket
• 3/8-inch-drive ratchet
• 3/8-inch-drive torque wrench rated 5-30 Nm
• Battery terminal puller (specialty)
• Battery terminal cleaning brush
• Battery carrier strap rated 75 pounds minimum
• Shop towels
• Chemical-resistant gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Group 24F 12-volt battery with top posts and reversed terminals - Qty: 1
• Battery terminal protector spray - Qty: 1

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📋 Before You Begin

• 🅿️ Park your 4Runner on level ground, shift into Park, apply the parking brake, and switch off all electrical accessories.
• 🗝️ Turn the ignition off, remove the key, and wait at least two minutes before disconnecting the battery.
• 📱 Record radio presets if you want to restore them afterward.
• 🔋 Confirm the replacement is a Group 24F battery with the positive terminal toward the passenger side when installed.
• 🚫 Do not use a memory saver through the diagnostic connector; it can leave vehicle circuits energized while you work.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Open the Hood and Locate the Battery

• Use chemical-resistant gloves and safety glasses before opening the hood.
• Locate the battery at the front passenger side of the engine compartment.
• Use shop towels to wipe loose dirt from the battery top so debris cannot fall around the tray.

Step 2: Disconnect the Negative Terminal

• Use a 10mm socket and 3/8-inch-drive ratchet to loosen the negative-terminal clamp marked “−.”
• Lift the clamp straight off. If stuck, use the battery terminal puller; this tool removes the clamp without twisting or damaging the battery post.
• Move the negative cable aside where it cannot spring back onto the post.
• Never pry against the battery case.

Step 3: Disconnect the Positive Terminal

• Open the red positive-terminal cover.
• Use the 10mm socket and 3/8-inch-drive ratchet to loosen the positive-terminal clamp marked “+.”
• Use the battery terminal puller if the clamp will not lift off by hand.
• Move the positive cable aside without letting it touch body metal.

Step 4: Remove the Battery Hold-Down

• Use the 10mm socket and 3/8-inch-drive ratchet to loosen the two hold-down fasteners evenly.
• Unhook the hold-down rods and remove the upper retaining bracket.
• Use shop towels to place the fasteners and bracket together so they are not lost.

Step 5: Remove the Old Battery

• Secure the battery carrier strap around the battery according to the strap instructions.
• Use the battery carrier strap to lift the battery straight upward and out of the engine compartment.
• Keep the battery upright and place it on a stable surface.
• Lift with your legs, not your back.

Step 6: Inspect and Clean the Tray and Terminals

• Use shop towels to clean dirt from the battery tray and inspect it for cracks or heavy corrosion.
• Use the battery terminal cleaning brush to clean corrosion from the inside of both cable clamps.
• Use shop towels to remove all loosened residue before installing the new battery.
• Replace a cracked tray or damaged cable terminal before continuing.

Step 7: Install the New Battery

• Use the battery carrier strap to lower the Group 24F battery squarely into the tray.
• Position it with the positive terminal on the passenger side and the negative terminal on the driver side.
• Make sure the battery sits flat and does not trap either cable underneath it.

Step 8: Reinstall the Hold-Down Bracket

• Use gloved hands to position the retaining bracket across the battery and engage both hold-down rods.
• Use the 10mm socket and 3/8-inch-drive ratchet to tighten the fasteners evenly until the battery cannot move.
• Use the 10mm socket and 3/8-inch-drive torque wrench to tighten each hold-down fastener to 5.4 Nm (48 in-lbs).
• Do not overtighten; excessive force can distort or crack the battery case.

Step 9: Connect the Positive Terminal

• Place the positive clamp fully down over the positive battery post.
• Use the 10mm socket and 3/8-inch-drive torque wrench to tighten the clamp nut to 5.4 Nm (48 in-lbs).
• Use gloved hands to close the red positive-terminal cover.

Step 10: Connect the Negative Terminal

• Place the negative clamp fully down over the negative battery post.
• Use the 10mm socket and 3/8-inch-drive torque wrench to tighten the clamp nut to 5.4 Nm (48 in-lbs).
• Use gloved hands to check both clamps; neither should rotate by hand.

Step 11: Protect and Inspect the Connections

• Use battery terminal protector spray to apply a light coating to the outside of both connected terminal clamps.
• Use shop towels to wipe away overspray without placing a towel across both terminals.
• Use the battery carrier strap to return the old battery upright to a retailer or recycling facility; do not place it in household trash.

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✅ After Repair

• ✅ Start the engine and confirm it cranks normally and the charging-system warning light turns off.
• 🔍 Switch the engine off and check that the battery and both terminal clamps remain secure.
• 🕒 Reset the clock and restore saved radio presets as needed.
• 🪟 If an automatic window loses one-touch operation, close it fully and hold its switch in the upward position for approximately one second.
• 🚫 No scan-tool battery registration or coding is required for your 4Runner.
• ♻️ Return the old battery for recycling and any available core-charge refund.

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💰 DIY vs Shop Cost

Shop Cost: ₹14,000-₹25,000 (parts + labor)

DIY Cost: ₹10,000-₹20,000 (parts only)

You Save: ₹4,000-₹5,000 by doing it yourself!

Local pricing varies because Group 24F batteries may be imported. This repair takes a shop approximately 0.3-0.5 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.