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

Toyota Highlander Third Generation (2014-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

587 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix grinding noise when braking in Toyota Highlander (2014-2019). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Brakes

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always disconnect the battery before working on electrical systems.
•Allow the vehicle to cool before working on brakes to avoid burns.

Symptoms

•Grinding noise when applying brakes
•Vibration or pulsation in the brake pedal
•Reduced braking efficiency
•Possible warning light on the dashboard (e.g., brake warning light)
•Increased stopping distance

Diagnostic Steps

1
Inspect brake pads for wear; check if they are worn down to the backing plate.
2
Examine brake rotors for scoring, warping, or damage.
3
Check the brake calipers for proper operation and any signs of sticking.
4
Inspect the brake fluid level and condition for contamination.
5
Look for any foreign objects lodged in the brake components.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•Jack
•Jack stands
•Lug wrench
•Torque wrench
•Brake cleaner
•Socket set
•C-clamp or brake caliper tool

Parts Required

•New brake pads
•New brake rotors (if necessary)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect brake pads for wear; check if they are worn down to the backing plate.
2
Examine brake rotors for scoring, warping, or damage.
3
Check the brake calipers for proper operation and any signs of sticking.
4
Inspect the brake fluid level and condition for contamination.
5
Look for any foreign objects lodged in the brake components.

Solution

1. Preparation

Tools Required: Jack, jack stands, lug wrench, torque wrench, brake cleaner, socket set, C-clamp or brake caliper tool.
Ensure the vehicle is parked on a level surface, and the parking brake is engaged.
Wear safety glasses and gloves.

2. Remove Wheel

Loosen lug nuts slightly while the vehicle is on the ground.
Use the jack to lift the vehicle and securely place it on jack stands.
Remove the lug nuts completely and take off the wheel.

3. Inspect and Replace Brake Pads

Locate the brake caliper and remove the caliper bolts using a socket.
Carefully slide the caliper off the brake rotor. Support it with a bungee cord or similar to avoid straining the brake line.
Inspect the brake pads for wear; if they are worn to the backing plate, replace them.
- Parts Required: New brake pads.
Clean the caliper and the area where the pads sit with brake cleaner.
If replacing, install new brake pads by sliding them into place.

4. Inspect and Replace Rotors (if necessary)

Check the rotors for scoring or warping. Use a micrometer to measure rotor thickness.
If damaged, remove the rotor by unscrewing the rotor retaining screws (if equipped) and sliding it off the hub.
- Parts Required: New brake rotors (if needed).
Install new rotors, ensuring they are properly seated.

5. Reassemble Braking System

Slide the caliper back over the new pads and rotor.
Reinstall caliper bolts and torque them to manufacturer specifications (usually around 80-100 ft-lbs).
Reinstall the wheel and hand-tighten lug nuts.

6. Final Steps

Lower the vehicle from the jack stands and tighten the lug nuts to the manufacturer’s torque specifications (typically 75-85 ft-lbs).
Pump the brake pedal several times to seat the new pads and ensure proper brake operation.