my Toyota Highlander shakes when I brake, what should I do?

Toyota Highlander Third Generation (2014-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

528 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 issues in Toyota Highlander. 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 ensure the vehicle is securely lifted and supported before working underneath it.
•Allow the brakes to cool before inspecting or working on them.

Symptoms

•Vehicle shakes or vibrates when braking
•Steering wheel vibrates during braking
•Increased stopping distance
•Brake pedal pulsates or feels uneven
•Possible noise from brakes when applied

Diagnostic Steps

1
Inspect brake rotors for warping or damage.
2
Check brake pads for wear and thickness.
3
Examine wheel alignment and suspension components for wear.
4
Test brake calipers for proper operation.
5
Scan for any error codes related to the braking 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
•Brake cleaner
•Measuring calipers
•Dial indicator

Parts Required

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

Related Faults

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Solution

1. Preparation

Tools Required: Jack and jack stands, lug wrench, torque wrench, brake cleaner, measuring calipers, and a dial indicator.
Safely park the vehicle on a level surface and engage the parking brake.

2. Lift the Vehicle

Loosen the lug nuts on the front wheels slightly while the vehicle is on the ground.
Use the jack to lift the vehicle and secure it with jack stands.
Remove the front wheels using the lug wrench.

3. Inspect Brake Components

Brake Rotors:
- Measure rotor thickness with measuring calipers.
- Use a dial indicator to check for warping; a variation greater than 0.002 inches indicates the need for replacement or resurfacing.
Brake Pads:
- Check for remaining pad thickness; replace if below 3mm.
- Inspect for uneven wear patterns.

4. Replace or Resurface Components

If rotors are warped:
- Remove the caliper bracket by loosening the bolts and slide the caliper off.
- Remove the rotor by unscrewing any retaining screws and pulling it off the hub.
- Either resurface the rotors or replace them with new ones.
- Reinstall the rotor and caliper bracket.
If brake pads are worn:
- Remove the old pads from the caliper bracket.
- Install new brake pads, ensuring they are correctly oriented.
- Compress the caliper piston using a caliper tool to fit over the new pads.

5. Reassemble and Torque

Reinstall the caliper and secure it with the bolts, tightening them to the manufacturer’s specifications (typically 20-30 ft-lb).
Reattach the wheel and hand-tighten the lug nuts.
Lower the vehicle and then torque the lug nuts to the specified value (typically 76-90 ft-lb).