my Toyota Highlander Third Generation (2014-2019) shakes when I brake, what's going on

Toyota Highlander Third Generation (2014-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

485 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 brake shaking 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 any electrical components.
•Allow the brakes to cool before handling to avoid burns.

Symptoms

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

Diagnostic Steps

1
Inspect brake pads for wear and thickness; replace if below specification.
2
Check the brake rotors for warping or uneven surfaces using a dial indicator.
3
Examine brake calipers for proper operation and signs of sticking or binding.
4
Inspect suspension components (control arms, struts, bushings) for wear or damage.
5
Check tire condition and balance; ensure they are properly inflated.

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 and jack stands
•Lug wrench
•Torque wrench
•Dial indicator
•Brake cleaner
•Safety glasses
•Gloves

Parts Required

•Brake pads (if worn)
•Brake rotors (if warped beyond repair)

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Diagnostic Steps

1
Inspect brake pads for wear and thickness; replace if below specification.
2
Check the brake rotors for warping or uneven surfaces using a dial indicator.
3
Examine brake calipers for proper operation and signs of sticking or binding.
4
Inspect suspension components (control arms, struts, bushings) for wear or damage.
5
Check tire condition and balance; ensure they are properly inflated.

Solution

1. Preparation

Tools Required: Jack and jack stands, lug wrench, torque wrench, dial indicator, brake cleaner, safety glasses, gloves.
Raise the vehicle with the jack and secure it with jack stands. Remove the wheels.

2. Inspect Brake Components

Sub-steps:
1. Remove the brake caliper bolts using a socket wrench.
2. Carefully slide the caliper off the rotor without disconnecting the brake line.
3. Inspect the brake pads for thickness; replace if less than 3mm.
4. Clean the caliper and rotor surfaces with brake cleaner.

3. Check and Resurface or Replace Rotors

Sub-steps:
1. Use a dial indicator to measure rotor runout; if it exceeds 0.002 inches, it may need resurfacing.
2. If the rotor is warped beyond repair, remove it from the hub and replace it with a new one.
3. If resurfacing, ensure it is done within specifications and follow manufacturer guidelines.

4. Reassemble Components

Sub-steps:
1. Reinstall the brake caliper over the new or resurfaced rotor.
2. Torque the caliper bolts to manufacturer specifications (typically 20-30 ft-lbs).
3. Reinstall the wheels and torque lug nuts to manufacturer specifications.

5. Lower Vehicle and Test

Lower the vehicle off the jack stands and perform a brake test at low speeds to ensure proper function.