why does my Toyota Highlander Third Generation (2014-2019) make a grinding noise when braking?

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the parking brake is engaged.
• Wear safety glasses and gloves for protection.

2. Remove Wheel

• Use a lug wrench to loosen the lug nuts.
• Raise the vehicle using a jack and secure it with jack stands.
• Remove the wheel to access the brake components.

3. Inspect and Replace Brake Pads

• Inspect Brake Pads:
  • Remove the caliper bolts using a socket set.
  • Slide the caliper off the rotor and support it with a bungee cord (do not let it hang by the brake line).
  • Check the thickness of the brake pads; replace if less than 3 mm.
• Replace Brake Pads:
  • Remove the old pads from the caliper bracket.
  • Install new brake pads, ensuring they fit snugly.
  • Apply brake grease to the backing of the pads to prevent noise.

4. Inspect and Replace Brake Rotors

• Inspect Rotors:
  • Check the rotors for scoring, warping, or excessive wear.
  • If warped or damaged, remove the rotor by unscrewing the retaining screws.
• Replace Rotors:
  • Install the new rotor, ensuring it is properly seated.
  • Torque the retaining screws to the manufacturer’s specifications (typically around 10-15 ft-lbs).

5. Reassemble Components

• Reinstall the caliper over the new pads and rotor.
• Tighten the caliper bolts to the manufacturer’s specifications (typically around 25-30 ft-lbs).
• Reattach the wheel and hand-tighten the lug nuts.

6. Final Checks

• Lower the vehicle and tighten the lug nuts to the manufacturer’s specifications (typically around 80-100 ft-lbs).
• Pump the brake pedal a few times to seat the pads against the rotors.