how to fix my Genesis G70 IG (2017-2023) if it shakes when braking

Genesis G70 IG (2017-2023)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

530 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 brakes in Genesis G70 IG (2017-2023). 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 the brakes to cool before handling any components.

Symptoms

•Steering wheel shakes during braking
•Vibration felt through the brake pedal
•Vehicle pulls to one side when braking
•Increased stopping distance
•Warped brake rotors may cause noise when braking

Diagnostic Steps

1
Inspect brake rotor condition visually for warping or damage.
2
Check brake pads for wear; measure thickness.
3
Use a dial indicator to measure rotor runout.
4
Examine suspension components for wear or damage (control arms, bushings).
5
Verify wheel alignment and tire condition, checking for uneven wear.

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
•Socket set
•Torque wrench
•Brake lathe (if resurfacing rotors)
•Dial indicator

Parts Required

•Brake rotors (if replacement is necessary)
•Brake pads (if replacement is necessary)
•Brake fluid (if topping up)

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Solution

1. Preparation

Gather necessary tools and parts.
Park the vehicle on a flat, level surface and engage the parking brake.
Disconnect the battery to ensure safety.

2. Remove Wheels

Use a jack to lift the vehicle and secure it with jack stands.
Remove the lug nuts using a socket wrench and take off the wheels.

3. Inspect Brake Components

Check brake rotors for warping using a dial indicator; if runout exceeds manufacturer specifications, they need resurfacing or replacement.
Inspect brake pads for wear; replace if they are below the recommended thickness (usually 3mm).

4. Resurface or Replace Rotors

If rotors are warped but within thickness limits, use a brake lathe to resurface them.
If rotors are excessively worn or damaged, replace them:
1. Remove the caliper by unbolting it from the bracket.
2. Slide the caliper off the rotor and suspend it using a bungee cord (do not let it hang from the brake line).
3. Remove the rotor by unbolting any retaining screws and sliding it off the hub.

5. Reassemble Components

Install the new or resurfaced rotor onto the hub.
Reinstall the caliper over the rotor and tighten the caliper bolts to the manufacturer's torque specifications.
Replace the brake pads if necessary.

6. Reinstall Wheels and Lower Vehicle

Place the wheels back on the hubs and hand-tighten the lug nuts.
Lower the vehicle from the jack stands and fully tighten the lug nuts in a crisscross pattern to the specified torque.

7. Final Checks

Reconnect the battery.
Verify brake fluid level and top up if necessary.