my Toyota Highlander Third Generation (2014-2019) shakes when I brake, what's causing this?

Toyota Highlander Third Generation (2014-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

598 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 symptoms, diagnostic steps, 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 components.
•Allow the vehicle to cool down before working on the brake system to prevent burns.

Symptoms

•Vibrations felt through the steering wheel or brake pedal when braking
•Increased stopping distance
•Unusual noises such as grinding or squeaking while braking
•Potential pulling to one side during braking
•Brake warning light illuminated (if applicable)

Diagnostic Steps

1
Inspect brake rotors for warping or uneven wear.
2
Check brake pads for thickness and signs of uneven wear.
3
Examine suspension components, including control arms and bushings, for damage or wear.
4
Test wheel alignment and balance to rule out related issues.
5
Scan for any trouble codes that may indicate a related fault.

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
•Socket set
•Brake cleaner
•Visual inspection tools (flashlight, pry bar)
•Alignment equipment (if available)

Parts Required

•Brake rotors
•Brake pads
•Suspension components (if necessary)

Related Faults

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Diagnostic Steps

1
Inspect brake rotors for warping or uneven wear.
2
Check brake pads for thickness and signs of uneven wear.
3
Examine suspension components, including control arms and bushings, for damage or wear.
4
Test wheel alignment and balance to rule out related issues.
5
Scan for any trouble codes that may indicate a related fault.

Solution

1. Preparation

Gather necessary tools and parts.
Park the vehicle on a flat surface and engage the parking brake.
Disconnect the battery (negative terminal) to ensure safety while working on the braking system.

2. Inspect and Replace Brake Rotors

Tools Required: Jack, jack stands, lug wrench, torque wrench, socket set, and brake cleaner.
Sub-steps:
1. Lift the vehicle using a jack and secure it with jack stands.
2. Remove the wheel using the lug wrench.
3. Inspect the brake rotor for warping or scoring. Use a dial indicator to measure runout if necessary.
4. If warped, remove the brake caliper by unscrewing the caliper bolts and hanging it securely (do not let it dangle from the brake line).
5. Remove the rotor by unscrewing any retaining screws and sliding it off the hub.
6. Clean the hub surface with brake cleaner before installing a new rotor.
7. Install the new rotor and secure it with retaining screws.
8. Reinstall the caliper and torque the caliper bolts to the manufacturer's specifications.

3. Inspect and Replace Brake Pads

Tools Required: Same as above.
Sub-steps:
1. With the caliper removed, inspect the brake pads for wear; if they are below the minimum thickness, replace them.
2. Remove the old pads from the caliper bracket.
3. Apply brake grease to the backing of the new pads to prevent squeaking.
4. Install the new brake pads into the caliper bracket.
5. Reattach the caliper over the new pads and torque the bolts.

4. Check Suspension Components

Tools Required: Visual inspection tools (flashlight, pry bar).
Sub-steps:
1. Inspect control arms and bushings for cracks or excessive play.
2. Replace any damaged components with OEM or equivalent parts.
3. Ensure all bolts and nuts are properly torqued.

5. Wheel Alignment and Balance

Tools Required: Alignment equipment (if available).
Sub-steps:
1. After repairs, take the vehicle to a professional for wheel alignment.
2. Ensure that tires are balanced to prevent vibrations.