🔧 Front Brakes & Rotors - Replacement

This job replaces the front brake pads and front rotors, which restores stopping power and helps fix brake noise, pulsation, or weak braking. On your Prius c, the front brakes are a conventional hydraulic disc setup, so the work is straightforward if you follow the steps carefully.

Difficulty Level: Intermediate | Estimated Time: 2-4 hours

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⚠️ Safety & Precautions

• Work on a flat surface and support the car with jack stands; never rely on a jack alone.
• Your Prius c is a hybrid, so keep the vehicle OFF and the key/fob away from the car while working.
• Brake dust can be harmful; do not blow it off with compressed air.
• Use brake cleaner only on the brake parts, not on rubber boots or painted surfaces.
• Do not press the brake pedal with a caliper removed.

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🔧 Required Tools

You'll need the following tools for this repair:

• Floor jack (rated 3-ton minimum)
• Jack stands
• Wheel chocks
• 21mm lug wrench or socket
• 14mm socket
• 17mm socket
• Ratchet
• Breaker bar
• Torque wrench
• Flat blade screwdriver
• Brake caliper compression tool (specialty)
• Bungee cord or hook
• Wire brush
• Bungee cord or mechanic's wire
• Brake cleaner
• Shop towels
• Safety glasses
• Nitrile gloves

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Front brake pad set - Qty: 1
• Front brake rotors - Replace in pairs - Qty: 2
• Brake hardware kit - Qty: 1
• Brake lubricant - Qty: 1 tube
• Brake cleaner - Qty: 1 can

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📋 Before You Begin

• Park on level ground, set the parking brake, and chock the rear wheels.
• Loosen the front lug nuts before lifting the car.
• Keep the hybrid system powered off.
• If the rotors are stuck, plan to use a penetrating oil spray and light tapping from behind.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Lift and secure the front of the car

• Use a floor jack to lift the front of your Prius c at the proper front lift point.
• Set the car on jack stands and give the car a gentle shake to confirm it is stable.
• Remove both front wheels with a 21mm lug wrench or socket.

Step 2: Remove the brake caliper

• Use a 14mm socket to remove the caliper slide pin bolts.
• Lift the caliper off the bracket and hang it with a bungee cord or mechanic's wire.
• Do not let it hang by the hose.

Step 3: Remove the brake pads and hardware

• Slide the old brake pads out of the caliper bracket.
• Remove the pad clips and anti-rattle hardware from the bracket.
• Clean the bracket with brake cleaner and a wire brush.

Step 4: Remove the caliper bracket

• Use a 17mm socket and breaker bar to remove the two caliper bracket bolts.
• Remove the bracket from the knuckle.
• Torque to 103 Nm (76 ft-lbs) during reassembly.

Step 5: Remove the rotor

• If the rotor has a retaining screw, use a Phillips screwdriver to remove it.
• Pull the rotor off the hub.
• If it is stuck, tap the rotor hat from behind with a rubber mallet.
• Clean the hub face with a wire brush until it is smooth and rust-free.
• Clean hub face = less brake vibration.

Step 6: Install the new rotor

• Spray the new rotor with brake cleaner to remove protective oil.
• Install the rotor onto the hub.
• Reinstall the rotor retaining screw if equipped and snug it down.
• Torque to 4.5 Nm (40 in-lbs) if your rotor screw is used.

Step 7: Reinstall the caliper bracket

• Place the bracket back on the knuckle.
• Use the 17mm socket to install and tighten the bracket bolts.
• Torque to 103 Nm (76 ft-lbs).

Step 8: Install the new pads and hardware

• Install the new pad clips from the hardware kit.
• Apply a thin layer of brake lubricant to the metal contact points only.
• Install the new front pads into the bracket.
• Keep grease off the friction surface.

Step 9: Compress the caliper piston and reinstall the caliper

• Use the brake caliper compression tool (specialty) to slowly push the piston back in.
• Make sure the brake fluid in the reservoir does not overflow.
• Reinstall the caliper over the new pads.
• Use the 14mm socket to install the slide pin bolts.
• Torque to 34 Nm (25 ft-lbs).

Step 10: Reinstall wheels and lower the car

• Install the front wheels and hand-tighten the lug nuts.
• Lower the car with the floor jack.
• Use a 21mm torque wrench to tighten the lug nuts in a star pattern.
• Torque to 103 Nm (76 ft-lbs).

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✅ After Repair

• Press the brake pedal several times before moving the car. It should feel firm.
• Check brake fluid level and top off only if needed.
• Test drive slowly at first and confirm there is no noise, pull, or vibration.
• For the first 200 miles, avoid hard braking so the pads and rotors can bed in.

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💰 DIY vs Shop Cost

Shop Cost: $350-$700 (parts + labor)

DIY Cost: $120-$280 (parts only)

You Save: $230-$420 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 2-4 hours.

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🎯 Ready to get started?

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