why does my Genesis G70 shake when I brake

Genesis G70 IG (2017-2023)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

495 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 Genesis G70. 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 wear safety glasses when working with brake components.
•Ensure the vehicle is securely supported on jack stands before working underneath.

Symptoms

•Steering wheel shakes or vibrates when braking
•Pulsation felt in the brake pedal
•Uneven wear on brake pads or rotors
•Vehicle pulls to one side when braking
•Increased stopping distance

Diagnostic Steps

1
Inspect brake rotors for warping or uneven wear.
2
Check brake pads for wear and proper installation.
3
Examine suspension components (e.g., control arms, bushings) for damage or play.
4
Verify tire condition and balance.
5
Use a dial indicator to measure rotor runout.

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
•Jack and jack stands
•Brake cleaner
•Dial indicator

Parts Required

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

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Solution

1. Preparation

Gather tools and equipment: socket set, torque wrench, jack and jack stands, brake cleaner, and dial indicator.
Ensure the vehicle is on a level surface and secure it with wheel chocks.

2. Inspect and Remove Wheels

Loosen the lug nuts slightly while the vehicle is on the ground.
Raise the vehicle using a jack and secure it with jack stands.
Remove the wheels to access the brake components.

3. Examine and Replace Brake Rotors (if warped)

Inspect Rotors: Use a dial indicator to measure runout; if over manufacturer specifications, they are warped.
Remove Brake Caliper: Unbolt the caliper from the bracket and suspend it using a bungee cord (do not let it hang by the brake line).
Remove Rotors: Unscrew any retaining screws and slide the rotor off the hub. Clean the hub surface with brake cleaner.
Install New Rotors: Position the new rotor on the hub, ensuring it fits flush. Reinstall retaining screws if applicable.

4. Inspect and Replace Brake Pads

Check Pads: Inspect pads for thickness; replace if below minimum thickness.
Replace Pads: Remove the brake pads from the caliper bracket. Apply brake grease to the backing of new pads and install them in the bracket.
Reinstall Caliper: Slide the caliper over the new pads and torque the bolts to manufacturer specifications.

5. Reassemble and Test

Reinstall the wheels and torque the lug nuts to manufacturer specifications.
Lower the vehicle and perform a test drive to ensure the issue is resolved.