🔧 Highlander - Front Brake Pad Replacement

This repair replaces the front disc brake pads on your Highlander. Worn pads can cause squealing, grinding, longer stopping distance, and rotor damage if ignored.

Difficulty Level: Beginner | Estimated Time: 1.5-2.5 hours

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⚠️ Safety & Precautions

• ⚠️ Work on a flat, solid surface and never rely on a jack alone.
• ⚠️ Always support your Highlander with jack stands before working near the wheels.
• ⚠️ Brake dust can be harmful. Do not blow it off with compressed air.
• ⚠️ Brake parts may be hot if the vehicle was recently driven.
• ⚠️ The brake pedal must be pumped after installation before driving, or the pedal may go to the floor.
• ⚠️ Battery disconnect is not required for this front brake pad replacement.

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🔧 Required Tools

You'll need the following tools for this repair:

• 21mm lug nut socket
• 14mm socket
• 17mm open-end wrench
• 3/8-inch drive ratchet
• 3/8-inch drive torque wrench
• 1/2-inch drive torque wrench
• Flat-head screwdriver
• Brake caliper piston compressor tool (specialty)
• Small wire brush
• Brake cleaner spray
• Drain pan
• Floor jack rated 2-ton minimum
• Jack stands rated 2-ton minimum
• Wheel chocks
• Nitrile gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Front brake pad set - Qty: 1
• Front brake pad hardware kit - Qty: 1
• Disc brake caliper slide pin grease - Qty: 1
• Brake parts cleaner - Qty: 1

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📋 Before You Begin

• 🅿️ Park your Highlander on level ground and shift the transmission to Park.
• 🧱 Place wheel chocks behind the rear wheels so the vehicle cannot roll.
• 🧤 Put on safety glasses and nitrile gloves before handling brake parts.
• 🧪 Open the hood and check the brake fluid reservoir. If it is completely full, remove a small amount with a clean suction tool before compressing the caliper pistons.
• 📌 A caliper is the clamp-like brake part that squeezes the pads against the rotor.
• 📌 A rotor is the round metal disc behind the wheel that the brake pads squeeze to stop the vehicle.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Loosen the Front Lug Nuts

• Use a 21mm lug nut socket and 1/2-inch drive breaker bar or torque wrench to loosen each front wheel lug nut about half a turn.
• Do this while the tires are still touching the ground.
• Loosen first, lift second.

Step 2: Lift and Support the Front of the Vehicle

• Use a floor jack rated 2-ton minimum at the front center jacking point.
• Raise the front of your Highlander high enough to remove both front wheels.
• Place jack stands rated 2-ton minimum under the approved front support points.
• Lower the vehicle gently onto the jack stands.
• Lightly shake the vehicle by hand to confirm it is stable before working.

Step 3: Remove the Front Wheels

• Use the 21mm lug nut socket to remove the loosened lug nuts.
• Remove both front wheels and set them flat under the side of the vehicle as an extra safety backup.

Step 4: Remove the Lower Caliper Slide Bolt

• Look at the brake caliper on one side. You will see two small bolts on the back side of the caliper.
• Use a 14mm socket and 3/8-inch drive ratchet to remove the lower caliper slide bolt.
• If the slide pin spins, hold it with a 17mm open-end wrench while loosening the bolt with the 14mm socket.
• A slide pin lets the caliper move smoothly as the pads wear.

Step 5: Swing the Caliper Up

• Use your hand to rotate the caliper upward on the upper slide pin.
• If it sticks, gently use a flat-head screwdriver to help lift it.
• Do not stretch, kink, or pull on the rubber brake hose.
• Never let the caliper hang by the hose.

Step 6: Remove the Old Brake Pads

• Slide the old inner and outer brake pads out of the caliper bracket by hand.
• If they are stuck, use a flat-head screwdriver to gently pry them out.
• Note the position of any wear indicator tab so the new pads can be installed the same way.
• A wear indicator is a small metal tab that squeals when pads are worn low.

Step 7: Remove and Clean the Pad Hardware

• Use a flat-head screwdriver to remove the old metal pad clips from the caliper bracket.
• Use a small wire brush to clean the bracket surfaces where the clips sit.
• Spray the area with brake cleaner spray and catch runoff in a drain pan.
• Install the new clips from the front brake pad hardware kit by pressing them into place by hand.

Step 8: Check and Grease the Slide Pin

• Pull the lower slide pin out by hand if it comes out easily.
• Wipe off old grease with a clean rag.
• Apply a light coat of disc brake caliper slide pin grease to the pin.
• Reinstall the slide pin by hand and make sure it moves smoothly.
• Do not use regular grease. Brake grease is made to handle heat and protect rubber parts.

Step 9: Compress the Caliper Piston

• Place one old brake pad against the caliper piston.
• Use a brake caliper piston compressor tool to slowly press the piston fully back into the caliper.
• Watch the brake fluid reservoir under the hood while compressing the piston.
• If the fluid rises near the top, stop and remove a small amount before continuing.
• A piston is the round metal part inside the caliper that pushes the brake pad.

Step 10: Install the New Brake Pads

• Install the new inner and outer pads into the caliper bracket by hand.
• Make sure the pads sit flat in the new hardware clips.
• The friction material faces the rotor. The metal backing plate faces outward.
• Do not get grease on the pad friction material or rotor surface.

Step 11: Reinstall the Caliper

• Rotate the caliper down over the new pads by hand.
• Install the lower caliper slide bolt by hand first to avoid cross-threading.
• Use a 14mm socket and 3/8-inch drive torque wrench to tighten the lower caliper slide bolt.
• Torque to 34 Nm (25 ft-lbs)
• If the slide pin spins, hold it with a 17mm open-end wrench.

Step 12: Repeat on the Other Front Side

• Repeat Steps 4 through 11 on the other front brake assembly.
• Replace front brake pads in pairs only. Never replace just one side.

Step 13: Reinstall the Front Wheels

• Place each wheel back onto the hub by hand.
• Thread the lug nuts on by hand first.
• Use the 21mm lug nut socket to snug the lug nuts in a star pattern.
• Do not fully torque them while the vehicle is still in the air.

Step 14: Lower the Vehicle and Torque the Lug Nuts

• Use the floor jack rated 2-ton minimum to raise the vehicle slightly off the jack stands.
• Remove the jack stands rated 2-ton minimum.
• Lower your Highlander until the tires touch the ground.
• Use a 21mm lug nut socket and 1/2-inch drive torque wrench to tighten the lug nuts in a star pattern.
• Torque to 103 Nm (76 ft-lbs)

Step 15: Pump the Brake Pedal

• Sit in the driver seat and press the brake pedal slowly several times.
• The pedal will feel soft at first, then become firm.
• Do not drive until the brake pedal feels firm.
• Check the brake fluid level and top off only if needed with the correct brake fluid listed on the reservoir cap.

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✅ After Repair

• ✅ Start the engine and press the brake pedal again. It should feel firm and normal.
• ✅ Check around both front calipers for leaks or anything loose.
• ✅ Test drive slowly in a safe area before normal driving.
• ✅ Bed in the new pads by making several gentle stops from about 30 mph, allowing time between stops for cooling.
• ✅ Avoid hard braking for the first 100-200 miles unless it is an emergency.
• ✅ Recheck lug nut torque after 25-50 miles using the 21mm lug nut socket and 1/2-inch drive torque wrench.

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💰 DIY vs Shop Cost

Shop Cost: $220-$380 (parts + labor)

DIY Cost: $45-$110 (parts only)

You Save: $175-$270 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.0-1.5 hours.

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