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

589 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 when working on the braking system to prevent electrical issues.
•Allow the brakes to cool down before working on them after driving.

Symptoms

•Grinding noise when applying brakes
•Vibration in the brake pedal
•Reduced braking effectiveness
•Visual wear on brake pads or rotors
•Warning light on the dashboard (if applicable)

Diagnostic Steps

1
Inspect the brake pads for wear; measure thickness and check for uneven wear patterns.
2
Check the brake rotors for scoring, warping, or rust buildup.
3
Examine calipers and brackets for proper operation and any signs of sticking.
4
Inspect brake fluid level and condition; check for contamination.
5
Scan for any error codes using an OBD-II scanner that may indicate brake system issues.

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

•Socket set
•Torque wrench
•Jack and jack stands
•Bungee cord or similar support device
•Brake cleaner

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 the brake pads for wear; measure thickness and check for uneven wear patterns.
2
Check the brake rotors for scoring, warping, or rust buildup.
3
Examine calipers and brackets for proper operation and any signs of sticking.
4
Inspect brake fluid level and condition; check for contamination.
5
Scan for any error codes using an OBD-II scanner that may indicate brake system issues.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and secure it with wheel chocks.
Wear safety goggles and gloves to protect yourself.

2. Remove Wheel

Loosen lug nuts on the wheel corresponding to the affected brake assembly using a socket wrench.
Lift the vehicle using a jack and secure it with jack stands.
Fully remove the lug nuts and take off the wheel.

3. Inspect and Replace Brake Pads

Remove the caliper by unscrewing the caliper bolts with a socket wrench.
Carefully slide the caliper off the rotor, supporting it with a bungee cord or similar device to avoid stress on the brake line.
Remove the old brake pads from the caliper bracket.
Compare the old pads with the new ones to ensure proper fit.
Install the new brake pads into the caliper bracket, ensuring they are seated correctly.

4. Inspect and Replace Brake Rotors (if necessary)

If rotors are scored or warped, remove them by unscrewing the rotor retaining screws (if equipped) and sliding the rotor off the hub.
Clean the hub surface to ensure a proper fit for the new rotor.
Install the new rotors, securing them with screws if applicable.

5. Reassemble Brake Components

Reattach the caliper over the new brake pads and rotor, ensuring it is properly aligned.
Tighten the caliper bolts to the manufacturer’s specified torque (typically around 25-35 ft-lbs).
Reinstall the wheel and hand-tighten the lug nuts before lowering the vehicle.

6. Final Checks

Lower the vehicle and torque the lug nuts to the manufacturer’s specifications (typically around 76-83 ft-lbs).
Pump the brake pedal a few times to ensure proper brake pad seating and system pressure.