Why Is My 2020 Nissan Maxima Brake Squealing?

How to Fix Brake Squeal

Dealing with brake squeal can be frustrating. The 2020 Nissan Maxima, like many vehicles, can experience this issue due to various factors within the brake system. Owners have addressed brake system concerns, sometimes related to brake pads, rotors, and calipers. "Not long after I got the car both rear calipers and all brakes were replace and I think they replaced the brake fluid then. I replaced pads and rotors again a few years ago," one owner shared, highlighting the maintenance required for the brake system.

Symptoms

The most common symptom related to the braking system is a squealing noise when the brakes are applied. This noise can vary in intensity and frequency, sometimes occurring only at low speeds or during light braking. In some cases, the squeal might be present even when the brakes are not actively being used.

Another symptom owners experience is related to the parking brake. As one owner noted: “The caliper is relocated further away so the cables no longer are able to reach.” This indicates an issue where modifications to the brake system can impact the functionality of other components, leading to operational difficulties.

The overall condition of the brake system components also matters. The condition of brake pads and rotors is critical to the braking system and its proper function. Problems with calipers and their proper function will likely be noticeable.

It's important to remember that seemingly unrelated issues might be connected. While troubleshooting brake squeal, it's always a good idea to check the health of your electrical system and battery, as electrical problems can sometimes manifest in unexpected ways. The electrical system needs to provide consistent power for your ABS (Anti-lock Brake System) which uses braking components.

Most Likely Cause

The most likely cause of brake squeal in your 2020 Nissan Maxima is related to the brake pads. This could be due to worn brake pads, low-quality brake pads, or the accumulation of brake dust and debris on the pads and rotors. As brake pads wear down, a metal wear indicator will often rub against the rotor, creating a high-pitched squealing sound to alert you it is time to replace your brake pads.

How to Diagnose

Diagnosing brake squeal requires a systematic approach. Here's how you can pinpoint the source of the noise:

1. Visual Inspection: Begin by visually inspecting the brake pads and rotors on all four wheels. Look for signs of wear, such as thin pads, uneven wear patterns, or scoring on the rotor surface.

2. Check Brake Pad Thickness: Use a brake pad thickness gauge to measure the remaining thickness of the brake pads. Compare the measurement to the manufacturer's specifications. If the pads are below the minimum thickness, they need to be replaced.

3. Inspect Rotors: Examine the rotors for any signs of damage, such as cracks, deep grooves, or excessive rust. If the rotors are damaged, they may need to be resurfaced or replaced.

4. Check Calipers: Inspect the brake calipers for any signs of leaks or damage. Ensure that the caliper pistons move freely and are not sticking. If a caliper is seized, it can cause the brake pads to wear unevenly and create noise. As mentioned by an owner, rebuilding rear brake calipers is possible, however, may require specialized knowledge and tools. "Dissambley rear brake caliper Hello everyone, I'm in the middle of rebuilding the rear brake caliper, but I have no idea on how to remove the center push rod from the caliper, FSM says remove ring C, then keyplate, and then push rod, but mine is just stuck inside....."

5. Test Drive: Take the vehicle for a test drive and carefully listen to the noise. Try to determine which wheel the noise is coming from. Note when the noise occurs and under what conditions (e.g., light braking, hard braking, turning).

6. Parking Brake Cables: Examine the routing and tension of the parking brake cables.

Tools Needed:

• Jack and jack stands
• Wheel chocks
• Lug wrench
• Brake pad thickness gauge
• Caliper tool
• Socket set
• Wrench set
• Brake cleaner
• Gloves
• Safety glasses

Step-by-Step Fix

Here's a step-by-step guide on how to address brake squeal on your 2020 Nissan Maxima. Remember to always prioritize safety and consult a professional if you're not comfortable performing these tasks.

1. Gather Your Supplies: Purchase new brake pads and rotors if necessary. Make sure you have the correct parts for your 2020 Nissan Maxima.

2. Prepare the Vehicle: Park your vehicle on a level surface, engage the parking brake, and chock the rear wheels. Loosen the lug nuts on the wheel you'll be working on.

3. Lift the Vehicle: Use a jack to lift the vehicle and securely support it with jack stands. Remove the wheel.

4. Remove the Caliper: Locate the caliper bolts on the back of the caliper. Use a wrench or socket to remove the bolts. Carefully remove the caliper from the rotor. If the caliper is difficult to remove, you may need to use a caliper piston compression tool to push the piston back into the caliper. As mentioned by one owner, the location of the caliper can cause problems: "The caliper is relocated further away so the cables no longer are able to reach."

5. Remove the Brake Pads: Slide the old brake pads out of the caliper bracket. Take note of how the pads are positioned, as you'll need to install the new pads in the same way.

6. Clean the Caliper Bracket: Use a wire brush to clean any rust or debris from the caliper bracket. Ensure that the brake pads can move freely within the bracket.

7. Install New Brake Pads: Install the new brake pads into the caliper bracket. Make sure they are properly seated.

8. Resurface or Replace Rotors: If the rotors are scored or damaged, have them resurfaced by a professional or replace them with new rotors. To remove the rotor, you may need to remove the caliper bracket. Be sure to clean the new or resurfaced rotor with brake cleaner.

9. Reinstall the Caliper: Carefully reinstall the caliper onto the rotor, making sure the brake pads are properly aligned. Tighten the caliper bolts to the manufacturer's specifications.

10. Repeat: Repeat these steps for the other wheels, if necessary.

11. Test: After reassembly, "Reset the whole control system, at battery, and will try her out today." as one owner noted, highlighting the importance of system resets after repair.

12. Bed-In Procedure: Perform a brake pad bed-in procedure according to the brake pad manufacturer's instructions. This helps to properly seat the brake pads and rotors and improve braking performance. This typically involves a series of moderate to aggressive stops from varying speeds.

Owner Experiences:

One owner replaced pads and rotors on their car. This is the typical wear and tear associated with the 2020 Nissan Maxima.

Parts and Tools Needed

• New brake pads (Part number varies depending on the brand and type)
• New rotors (Optional, depending on condition)
• Brake cleaner
• Brake grease
• Caliper bolts (If replacing)
• Jack and jack stands
• Wheel chocks
• Lug wrench
• Socket set
• Wrench set
• Caliper piston compression tool (Optional)
• Torque wrench
• Gloves
• Safety glasses

Real Owner Costs

The cost to address brake squeal can vary depending on whether you choose to DIY the repair or take it to a mechanic. Here are some examples:

• DIY (Pads Only): A set of quality brake pads can cost between $50 and $100. You'll also need to factor in the cost of brake cleaner and grease, which may add another $10 to $20. The total cost for a DIY brake pad replacement can range from $60 to $120.

• DIY (Pads and Rotors): If you need to replace the rotors as well, the cost will increase. Rotors can range from $50 to $150 each. So, replacing both pads and rotors on one wheel can cost between $150 and $400.

• Mechanic (Pads Only): A mechanic will typically charge between $150 and $300 for a brake pad replacement, including parts and labor.

• Mechanic (Pads and Rotors): Replacing both pads and rotors at a mechanic can cost between $300 and $600 per wheel, depending on the shop and the quality of the parts used.

These prices are estimates, and the actual cost may vary depending on your location and the specific parts and labor involved.

Prevention

Preventing brake squeal involves regular maintenance and good driving habits. Here are some tips:

• Regular Inspections: Regularly inspect your brake pads and rotors for wear and damage. Replace them as needed.
• Use Quality Parts: When replacing brake pads and rotors, use high-quality parts that are designed for your vehicle.
• Proper Bedding-In: Follow the brake pad manufacturer's instructions for bedding-in new brake pads.
• Avoid Hard Braking: Avoid excessive hard braking, as this can cause the brake pads and rotors to overheat and wear prematurely.
• Keep Brakes Clean: Periodically clean your brake components with brake cleaner to remove brake dust and debris.
• Lubricate Moving Parts: Apply brake grease to the caliper slides and other moving parts to ensure smooth operation.

What Owners Say

Real experiences from NISSAN owners:

Owner Experiences

"Not long after I got the car both rear calipers and all brakes were replace and I think they replaced the brake fluid then. I replaced pads and rotors again a few years ago." — usaf2000 (source)

"Im installing the rear BBK kit made by fastbrakes and ive run into a snag with my parking brake cables. The caliper is relocated further away so the cables no longer are able to reach." — Slamrod (source)

"The caliper is relocated further away so the cables no longer are able to reach. I assumed id get enough length by loosening the cable from inside the cabin but this still doesnt give enough." — Slamrod (source)

Lessons Learned

⚠️ "I then turned on the lights, radio, hazards, heater fan and was still getting 14.2V at the battery. After turning off the car, battery was giving my 13.1V." — maximanut2001 (source)

⚠️ "That light went off on next crank bur still have the service light.Reset the whole control system, at battery, and will try her out today. I wonder, had both back wheel bearings replaced last fall." — Roymg (source)

⚠️ "I did just get a TCS OFF SLIP Light and service light that came on for the first time. That light went off on next crank bur still have the service light.Reset the whole control system, at battery, and will try her out today." — Roymg (source)

FAQ

Q: How long does it take to fix brake squeal?

A: The time it takes to fix brake squeal depends on the extent of the problem and whether you choose to DIY or take it to a mechanic. A simple brake pad replacement can take as little as 1-2 hours for a DIYer, while a more complex repair involving rotor replacement or caliper issues may take longer. A mechanic can typically complete a brake pad replacement in 1-2 hours.

Q: Can I drive with brake squeal?

A: While it may be safe to drive with brake squeal in some cases, it's not recommended. Brake squeal can be a sign of worn brake pads or other underlying issues that could compromise your braking performance. It's best to have the brakes inspected and repaired as soon as possible to ensure your safety.

Q: Is this a common issue on the 2020 Nissan Maxima?

A: Brake squeal is a relatively common issue on many vehicles, including the 2020 Nissan Maxima. It can be caused by a variety of factors, including normal wear and tear, low-quality brake pads, or environmental conditions.

Q: DIY vs mechanic - what's recommended?

A: Whether you choose to DIY or take your 2020 Nissan Maxima to a mechanic depends on your skill level and comfort level with automotive repair. If you have experience working on brakes and are comfortable with the steps involved, you can save money by doing the repair yourself. However, if you're not comfortable working on brakes or if the problem is more complex, it's best to take it to a qualified mechanic. Brakes are critical safety components, and it's important to ensure that they are properly repaired.