why does my Toyota Highlander shake when I brake at high speeds

Toyota Highlander Third Generation (2014-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

544 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 at high speeds. 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 allow the brakes to cool before working on them.
•Ensure the vehicle is securely supported before working underneath it.

Symptoms

•Steering wheel vibrates or shakes when braking at high speeds
•Increased brake pedal pulsation
•Uneven brake wear or noise when braking
•Vehicle may pull to one side during braking
•Possible burning smell from brakes after prolonged use

Diagnostic Steps

1
Inspect brake pads and rotors for uneven wear or damage.
2
Check for warped or damaged brake rotors using a runout gauge.
3
Examine the brake calipers for proper function and any sticking.
4
Inspect suspension components for wear or damage, including control arms and bushings.
5
Check tire balance and alignment to rule out additional causes.
6
Scan for any error codes that might indicate an issue with the ABS system.

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
•Runout gauge
•Brake cleaner
•Basic hand tools (sockets, wrenches)

Parts Required

•Brake pads
•Brake rotors (if warped)
•Brake calipers (if sticking)

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Diagnostic Steps

1
Inspect brake pads and rotors for uneven wear or damage.
2
Check for warped or damaged brake rotors using a runout gauge.
3
Examine the brake calipers for proper function and any sticking.
4
Inspect suspension components for wear or damage, including control arms and bushings.
5
Check tire balance and alignment to rule out additional causes.
6
Scan for any error codes that might indicate an issue with the ABS system.

Solution

1. Preparation

Gather tools and parts needed for repair.
Ensure the vehicle is parked on a level surface and the engine is turned off.
Disconnect the battery to prevent any electrical issues.

2. Remove Wheel

Loosen the lug nuts slightly while the wheel is still on the ground.
Raise the vehicle with a jack and secure it on jack stands.
Remove the lug nuts completely and take off the wheel.

3. Inspect and Replace Brake Components

Inspect Brake Pads:
- Check for thickness; replace if below manufacturer's specifications.
Inspect and Resurface/Replace Rotors:
- Use a runout gauge to check for warping. If warped, either resurface or replace the rotors.
- If replacing, ensure to clean the rotor surface with brake cleaner before installation.
Inspect Brake Calipers:
- Check for proper movement; replace calipers if they are sticking.
- Clean caliper slides and apply lubrication as necessary.

4. Reassemble Components

Place the new or resurfaced rotor onto the hub.
Install new brake pads into the caliper bracket.
Reattach the brake caliper and secure it with the appropriate torque (generally 20-30 ft-lbs, but consult specifications).
Reinstall the wheel and hand-tighten the lug nuts.

5. Lower Vehicle and Test

Lower the vehicle off the jack stands.
Tighten lug nuts to the manufacturer's torque specification (typically 75-85 ft-lbs).
Reconnect the battery.
Test drive the vehicle to ensure the issue is resolved.