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Brake pad and rotor replacement advice for 2021 NX 300

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Mike T. · rep 0 · May 25, 3:29 AM · 1 replies · solved · Question

Vehicle: 2021 Lexus NX 300

Hello all,

My 2021 Lexus NX 300 is approaching 45,000 miles, and I'm starting to hear some squealing, especially when braking lightly. I think it's time for new pads and possibly rotors. I'm planning to do this myself to save some money.

What are good aftermarket pad and rotor brands that people recommend for the NX 300? I'm looking for something that performs well but isn't overly aggressive or noisy. Also, are there any specific things I should watch out for when replacing the brakes on this model? Any tips on bedding them in properly would be great too!

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 3:29 AM

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ClearTheCode admin answer:

It's a great idea to tackle brake maintenance yourself on your 2021 Lexus NX 300, and 45,000 miles is a reasonable interval for pad and potentially rotor replacement, especially if you're hearing squealing. Here's some advice to ensure a smooth and effective job:

  1. Pad and Rotor Recommendations:
    • Pads: For a good balance of performance, low dust, and quiet operation, consider ceramic pads from brands like Akebono (often OEM supplier), Wagner, or Bosch. They are generally quieter and produce less dust than semi-metallic options. If you want a slight performance upgrade, Hawk HPS or EBC Yellowstuff are popular, but might be overkill for daily driving.
    • Rotors: For daily driving, standard OEM-style blanks from brands like Centric, Raybestos, or Brembo are usually sufficient. If you experience warping issues or want a slight upgrade in heat dissipation, slotted or drilled rotors are an option, but often come with increased cost and potentially more noise. Ensure they are coated to prevent rust.
  2. Key Considerations for NX 300 Brakes:
    • Electronic Parking Brake (EPB): Your NX 300 likely has an electronic parking brake. Before compressing the rear calipers, you MUST put the EPB into 'maintenance mode' or use a diagnostic tool to retract the piston. Attempting to compress it manually without doing so can damage the EPB motor.
    • Caliper Slide Pins: Always clean and properly lubricate the caliper slide pins with high-temperature silicone grease. Sticking pins are a common cause of uneven pad wear and noise.
    • Hardware: Replace the brake hardware (clips and shims) with new ones, which often come with new pads. This helps prevent rattles and ensures proper pad movement.
    • Torque Specs: Use a torque wrench for all fasteners, especially the caliper mounting bolts and wheel lug nuts. Incorrect torque can lead to dangerous situations.
  3. Bedding-In Procedure: This is crucial for maximizing pad and rotor life and performance. Follow the pad manufacturer's specific instructions, but a general procedure is:
    • Find a safe, open road.
    • Perform 6-10 moderate stops from 35-40 mph down to about 10 mph. Do NOT come to a complete stop.
    • Drive for 5-10 minutes without using the brakes much to allow them to cool down.
    • Perform 2-3 harder stops from 50-60 mph down to about 10 mph. Again, do NOT come to a complete stop.
    • Drive for another 10-15 minutes without using the brakes much to allow them to cool completely.
    • Avoid heavy braking for the next 200-300 miles.

When to See a Shop: If you're unsure about the electronic parking brake procedure, encounter difficulty removing stubborn bolts, or if you notice any unusual noises or pedal feel after the replacement, it's best to have a professional mechanic inspect your work. Improperly installed brakes are a serious safety hazard.

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