why does my Genesis G70 shake when I brake

Genesis G70 1st Gen (2018-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

572 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 symptoms, diagnostic steps, and repair instructions.

Affected Component

Brakes

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always disconnect the battery before working on electrical components.
•Ensure the vehicle is securely supported on jack stands before working underneath.

Symptoms

•Steering wheel shakes during braking
•Vibration felt in the brake pedal
•Uneven wear on brake pads or rotors
•Increased stopping distance
•Noise when braking, such as grinding or squeaking
•Vehicle pulls to one side during braking

Diagnostic Steps

1
Inspect brake rotors for warping using a dial indicator.
2
Check brake pads for uneven wear or damage.
3
Examine suspension components, including control arms and bushings, for wear or damage.
4
Assess wheel alignment and balance.
5
Scan for any error codes related to the braking system.
6
Test drive the vehicle to reproduce the shaking and assess severity.

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

•Lug wrench
•Jack and jack stands
•Socket set
•Torque wrench
•Dial indicator for rotor inspection

Parts Required

•Brake rotors (if warped)
•Brake pads (if worn)
•Suspension components (if damaged)

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Diagnostic Steps

1
Inspect brake rotors for warping using a dial indicator.
2
Check brake pads for uneven wear or damage.
3
Examine suspension components, including control arms and bushings, for wear or damage.
4
Assess wheel alignment and balance.
5
Scan for any error codes related to the braking system.
6
Test drive the vehicle to reproduce the shaking and assess severity.

Solution

1. Preparation

Gather all necessary tools and parts.
Park the vehicle on a level surface and engage the parking brake.
Disconnect the battery.

2. Remove Wheel and Inspect Brakes

Loosen lug nuts slightly with a lug wrench.
Use a jack to lift the vehicle and secure it on jack stands.
Remove the wheel completely.
Inspect the brake rotors for warping using a dial indicator; replace if warped beyond specifications.
Check brake pads for thickness; replace if they are worn to the indicator line or uneven.

3. Replace Brake Rotors and Pads (if necessary)

Remove the caliper by unbolting the caliper mounting bracket.
- Tools: Socket set
Slide the caliper off the rotor and secure it using a bungee cord to avoid stress on the brake line.
Remove and replace the brake pads.
Remove the old rotor by unscrewing any retaining screws and sliding it off the hub.
Install the new rotor and secure it with retaining screws if applicable.
Reinstall the caliper over the new rotor and tighten to manufacturer specifications (usually 25-35 ft-lbs).

4. Inspect and Repair Suspension Components

Check control arms and bushings for wear; replace if cracked or damaged.
Inspect tie rods and ball joints for play; replace if any movement is detected.
Ensure proper tightening of all suspension fasteners to manufacturer specifications.

5. Wheel Alignment and Balancing

After repairs, have the vehicle's wheels aligned and balanced using a professional service.
Confirm that the alignment specifications are within manufacturer tolerances.