how can I fix my Genesis G70 IG (2017-2023) when it shakes while braking?

Genesis G70 IG (2017-2023)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

583 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 while braking in Genesis G70 (2017-2023). 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 vehicle's brakes to cool before working on them to avoid burns.
•Ensure the vehicle is securely lifted and supported before working underneath.

Symptoms

•Shaking or vibration felt through the steering wheel during braking
•Uneven wear on brake pads or rotors
•Possible grinding noise when braking
•Reduced braking performance
•Steering wheel pulling to one side during braking

Diagnostic Steps

1
Inspect the brake rotors for warping or uneven wear using a dial indicator.
2
Check the brake pads for wear and ensure they are seated correctly.
3
Examine suspension components (e.g., control arms, tie rods) for play or damage.
4
Inspect wheel balance and alignment to rule out other causes of vibration.
5
Check brake calipers for proper operation and ensure they are not sticking.

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

•OBD-II scanner
•Torque wrench
•Jack and jack stands
•Lug wrench
•Brake cleaner
•Dial indicator

Parts Required

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

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Diagnostic Steps

1
Inspect the brake rotors for warping or uneven wear using a dial indicator.
2
Check the brake pads for wear and ensure they are seated correctly.
3
Examine suspension components (e.g., control arms, tie rods) for play or damage.
4
Inspect wheel balance and alignment to rule out other causes of vibration.
5
Check brake calipers for proper operation and ensure they are not sticking.

Solution

1. Preparation

Gather tools and parts: OBD-II scanner, torque wrench, jack and jack stands, lug wrench, brake cleaner, dial indicator, and replacement brake rotors and pads if necessary.
Ensure the vehicle is parked on a level surface, and engage the parking brake.
Disconnect the negative battery terminal to prevent any electrical issues.

2. Raise Vehicle

Use the jack to lift the front or rear of the vehicle as needed.
Secure with jack stands to prevent accidental lowering.

3. Remove Wheel

Loosen lug nuts with a lug wrench and remove the wheel from the hub.

4. Inspect and Replace Brake Components

Inspect Brake Rotors

Use the dial indicator to measure rotor run-out. If it exceeds manufacturer specifications, replace the rotors.

Replace Brake Pads

Remove the caliper by unscrewing the caliper bolts using a socket set. Support it with a bungee cord to prevent strain on the brake line.
Remove the old brake pads and inspect the caliper for any sticking. Clean and lubricate the caliper slide pins if necessary.
Install the new brake pads, ensuring they are oriented correctly.

5. Reassemble

Reinstall the caliper over the new pads and torque the caliper bolts to manufacturer specifications.
Reinstall the wheel and hand-tighten the lug nuts.
Lower the vehicle and then torque the lug nuts in a crisscross pattern to the specified torque.

6. Test Brake System

Reconnect the negative battery terminal.
Perform a brake system test by gently pressing the brake pedal to ensure proper engagement.
Test drive the vehicle to confirm the shaking issue has been resolved.