my Toyota Highlander Third Generation (2014-2019) is shaking when I brake, what's wrong?

Toyota Highlander Third Generation (2014-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

417 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 shaking during braking in Toyota Highlander (2014-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Brakes

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is securely lifted before working underneath.
•Always wear safety glasses to protect your eyes from debris.

Symptoms

•Shaking or vibration felt in the steering wheel when braking
•Pulsation in the brake pedal
•Uneven brake wear observed on the brake pads
•Increased stopping distance
•Potential squeaking or grinding noises from the brakes

Diagnostic Steps

1
Inspect brake pads and rotors for wear and damage.
2
Check the wheel alignment and suspension components for play or damage.
3
Use a dial indicator to measure rotor runout.
4
Scan for any error codes related to the braking system.
5
Examine tire condition and balance; check for uneven wear.

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
•Dial indicator
•Wire brush

Parts Required

•Brake pads (if worn)
•Brake rotors (if warped or damaged)

Related Faults

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Solution

1. Preparation

Gather necessary tools and parts.
Park the vehicle on a level surface and engage the parking brake.
Wear safety glasses and gloves.

2. Wheel Removal

Sub-steps:
1. Loosen lug nuts on the front wheels while the vehicle is on the ground.
2. Lift the vehicle using a jack and secure with jack stands.
3. Remove the lug nuts completely and take off the front wheels.

3. Inspecting Brake Components

Sub-steps:
1. Remove the caliper mounting bolts using a socket wrench.
2. Carefully slide the caliper off the rotor and suspend it without putting stress on the brake line.
3. Inspect the brake pads for uneven wear; replace if necessary.
4. Check the rotors for warping or scoring; measure with a dial indicator for runout.
5. If warped, proceed to replace the rotors.

4. Rotor Replacement

Sub-steps:
1. Remove the old rotor; if stuck, tap gently with a hammer.
2. Clean the hub surface with a wire brush.
3. Install the new rotor, ensuring it is seated correctly.
4. Install the caliper and tighten the caliper mounting bolts to the manufacturer's torque specifications.

5. Reassembly

Sub-steps:
1. Reinstall the wheel and hand-tighten the lug nuts.
2. Lower the vehicle from the jack stands using a jack.
3. Tighten the lug nuts to the specified torque settings in a crisscross pattern.

Tools Required:

Socket set
Torque wrench
Jack and jack stands
Dial indicator
Wire brush

Parts Required:

Brake pads (if worn)
Brake rotors (if warped or damaged)

Estimated Repair Time: 2-4 hours

Safety Warnings:

Ensure the vehicle is securely lifted before working underneath.
Always wear safety glasses to protect your eyes from debris.