why does my Tesla Model S shake when I brake at high speeds

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

556 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 at high speeds in Tesla Model S. 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

•Disconnect the battery before working on electrical systems.
•Allow brakes to cool before servicing to avoid burns.

Symptoms

•Shaking or vibration felt in the steering wheel or throughout the vehicle during braking at high speeds
•Increased braking distance
•Pulsation in the brake pedal
•Possible noise from the braking system
•Uneven wear on brake pads or rotors

Diagnostic Steps

1
Inspect the brake rotors for warping or uneven wear.
2
Check brake pad thickness and condition.
3
Examine the suspension and steering components for wear or damage.
4
Test the brake calipers for proper operation and alignment.
5
Use a wheel balancing machine to check for wheel imbalance.
6
Scan for any error codes related to the braking system using an OBD-II scanner.

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
•Brake cleaner
•Jack and jack stands
•Wheel balancing machine
•Brake pad spreader

Parts Required

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

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Diagnostic Steps

1
Inspect the brake rotors for warping or uneven wear.
2
Check brake pad thickness and condition.
3
Examine the suspension and steering components for wear or damage.
4
Test the brake calipers for proper operation and alignment.
5
Use a wheel balancing machine to check for wheel imbalance.
6
Scan for any error codes related to the braking system using an OBD-II scanner.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a flat surface and the parking brake is engaged.
Disconnect the negative terminal of the battery for safety.

2. Inspect and Replace Brake Rotors

Tools Required: Socket set, torque wrench, brake cleaner
Sub-steps:
1. Remove the wheel to access the brake components.
2. Inspect the brake rotors for warping (check with a runout gauge).
3. If warped, remove the caliper bolts and slide the caliper off the rotor.
4. Remove the rotor from the hub.
5. Install a new rotor (ensure it is properly seated) and torque to manufacturer specifications.

3. Inspect and Replace Brake Pads

Tools Required: Brake pad spreader, torque wrench
Sub-steps:
1. Check the condition of the brake pads for thickness and wear.
2. If they are worn, remove the old pads by sliding them out of the caliper bracket.
3. Install new brake pads and ensure they are properly aligned.
4. Reinstall the caliper and torque the bolts to specifications.

4. Suspension and Steering Component Inspection

Tools Required: Jack and jack stands, wrench set
Sub-steps:
1. Lift the vehicle and securely place it on jack stands.
2. Inspect all suspension components (control arms, bushings, tie rods) for wear or damage.
3. Replace any worn components as necessary.
4. Ensure all bolts are tightened to the manufacturer’s torque specifications.

5. Wheel Balancing

Tools Required: Wheel balancing machine
Sub-steps:
1. Remove the wheel from the vehicle.
2. Mount the wheel on a balancing machine.
3. Adjust weights as necessary to achieve balance.
4. Reinstall the balanced wheel on the vehicle and torque the lug nuts.