how to fix the squealing brakes in my Toyota Highlander Third Generation (2014-2019)?

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 squealing brakes on your Toyota Highlander (2014-2019). Step-by-step guide with tools, parts, and safety tips.

Affected Component

Brakes

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always wear safety glasses and gloves while working on brake components.
•Ensure the vehicle is securely supported before working underneath it.
•Allow brake components to cool before handling, as they can become very hot after use.

Symptoms

•Squealing or squeaking noise during braking
•Reduced braking efficiency
•Vibration or pulsation felt through the brake pedal
•Brake warning light illuminated on the dashboard
•Increased stopping distance

Diagnostic Steps

1
Inspect brake pads visually for wear and damage.
2
Check brake rotor surface for scoring or uneven wear.
3
Measure brake pad thickness with a caliper.
4
Inspect brake caliper operation and ensure it is not sticking.
5
Test brake fluid level and condition for contamination.

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

•Lug wrench
•Jack and jack stands
•Socket set (12mm, 14mm)
•Torque wrench
•Brake cleaner
•Caliper tool (if compressing caliper piston)

Parts Required

•Brake pads (OEM or quality aftermarket)
•Brake rotors (if needed)

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Solution

1. Preparation

Gather tools and parts required for the repair.
Ensure the vehicle is parked on a flat surface and secure it with wheel chocks.
Disconnect the battery to avoid any electrical issues while working on the brakes.

2. Remove Wheel

Use a lug wrench to loosen the lug nuts on the affected wheel.
Raise the vehicle using a jack and secure it with jack stands.
Completely remove the lug nuts and take off the wheel.

3. Inspect and Remove Brake Components

Remove the caliper by unscrewing the caliper bolts with a socket set (typically a 12mm or 14mm socket).
Slide the caliper off the rotor and support it using a bungee cord or hook to avoid straining the brake line.
Remove the brake pads from the caliper bracket.

4. Replace or Resurface Brake Pads and Rotors

If the brake pads are worn down to less than 3mm, replace them. Make sure to use OEM or high-quality aftermarket pads.
Inspect the rotors; if they are scored or below the minimum thickness, replace or resurface them. Use a brake lathe if resurfacing.
Clean the rotor surface with brake cleaner to remove dust and debris.

5. Reassemble Brake Components

Install the new or resurfaced rotor onto the hub.
Place the new brake pads into the caliper bracket.
Reattach the caliper over the brake pads and rotor, securing it with the caliper bolts. Torque the bolts to the manufacturer's specifications (usually around 30-40 lb-ft).
Reinstall the wheel and torque the lug nuts to the manufacturer's specifications (around 75-85 lb-ft).

6. Final Checks

Reconnect the battery.
Pump the brake pedal a few times to ensure proper pad seating and brake fluid pressure.