A Guide to Replacing Disc Brake Pads on the 2017-2023 Mazda CX-9
Everything a CX-9 owner needs to know before buying new aftermarket brake pads.
- A clicking or squeaking noise from the front brakes is a known issue covered by a Technical Service Bulletin (TSB).
- When replacing rear pads, the Electronic Parking Brake (EPB) MUST be put into 'Maintenance Mode' first to avoid damage.
- Aftermarket brands like Powerstop, Akebono, and Bosch are popular and well-regarded upgrades by other CX-9 owners.
- For best results and safety, plan to replace your brake rotors at the same time as your brake pads.
Is it Time for New Brake Pads?
Your Mazda CX-9 will give you clear signs when the brake pads are wearing thin. Ignoring these symptoms can lead to more expensive repairs, like needing to replace the brake rotors. Be aware of the common symptoms of brake pad failure.
Known Vehicle-Specific Issues
Mazda has issued a Technical Service Bulletin (TSB 04-004/20 or 04-001/22) for 2016-2022 CX-9 models that addresses two common noise complaints.
- Clicking Noise: Some owners report a "click" sound from the front brakes when first moving from a stop or when applying the brakes at low speed. This is often caused by deteriorated grease between the brake pad and the shim, allowing for slight movement.
- Squeaking Noise: On earlier models (2016-2018), a squeak during light braking can occur as the pads wear. Mazda updated the front pad design in April 2018 to help reduce this issue.
If your CX-9 exhibits these specific noises, mentioning the TSB to your mechanic can help diagnose the issue. The fix often involves replacing pads and applying specific grease to the new hardware.
Choosing the Right Aftermarket Brake Pads for Your CX-9
When replacing your brake pads, you have options beyond the expensive dealer parts. Aftermarket pads can offer similar or even better performance, often for less money. They generally fall into three categories.
1. Economy Pads (Daily Driver)
These are the most budget-friendly options, designed to meet basic OEM standards. They are a good choice for general-purpose commuting and daily driving. Brands like Pronto, Dynamic Friction, and Total Stopping Solutions fit into this category.
- Pros: Lowest cost.
- Cons: May not have the same lifespan or bite as higher-tier pads.
2. OEM-Equivalent Pads (Balanced Choice)
These pads are designed to match the performance, noise levels, and durability of the original factory pads. They are often made from high-quality ceramic materials that produce less dust than the original pads. Many owners find these to be the best balance of performance and value.
- Recommended Brands: Akebono, Bosch, Centric, and Raybestos are frequently recommended by CX-9 owners for their quality and reliability. Some owners note that Akebono pads provide a smooth, quiet stop with low dust, though they may feel less aggressive than other types.
- Pros: Quiet operation, low dust, reliable performance similar to factory.
- Cons: Akebono may not offer rear pads for all model years.
3. Performance / Heavy-Duty Pads (Upgrade)
For drivers who want improved stopping power, especially for towing or more spirited driving, performance pads are a great upgrade. These often use carbon-fiber ceramic or enhanced semi-metallic formulas.
- Recommended Brands: Powerstop, particularly the Z23 Evolution Sport kit with carbon-fiber ceramic pads, is highly praised by CX-9 owners as a significant upgrade over OEM pads in terms of stopping power and low dust. EBC Brakes and Brembo also offer high-performance options.
- Pros: Increased stopping power (bite), fade resistance, and often low dust.
- Cons: Can be more expensive and may require following a specific "bed-in" procedure for best performance.
Pro Tip: Many owners recommend getting coated brake rotors, especially if you live in an area with road salt. Brands like Raybestos, Centric, and Powerstop offer coated rotors that resist rust, which keeps your wheels looking clean and can extend the life of the braking system.
Cost to Replace Mazda CX-9 Brake Pads
| Service | Estimated Cost |
|---|---|
| Aftermarket Brake Pad Set (Front or Rear) | $34 - $140 |
| Shop Labor (Per Axle) | $119 - $175 |
| Total Professional Replacement (Per Axle) | $153 - $315 |
Note: Costs are estimates and can vary based on your location and the specific parts chosen. This does not include the cost of new rotors, which are often replaced at the same time.
Special Note for Rear Brake Pad Replacement
The 2017-2023 Mazda CX-9 is equipped with an Electronic Parking Brake (EPB). Before you can replace the rear brake pads, the EPB must be put into a special "Maintenance Mode" or "Service Mode." This retracts the electronic motor in the brake caliper. Attempting to compress the caliper piston without doing this will result in damage. The procedure does not require a special scan tool and can be done with a sequence of button and pedal presses.
Frequently Asked Questions
Do I have to replace my rotors with my pads?
It is highly recommended. Installing new pads on old, worn rotors can cause uneven wear, noise, and reduced performance. Most shops will recommend replacing pads and rotors together to ensure a safe and quiet braking system.
What's the difference between ceramic and semi-metallic pads?
Ceramic pads are known for being quiet and producing very little brake dust, making them a popular choice for daily drivers. Semi-metallic pads can offer more stopping power or "bite," especially in cold conditions, but they are often noisier and create more black dust. Hybrid pads, like the Powerstop carbon-fiber ceramic, aim to offer the best of both worlds.
Why do my rear brake pads wear out faster than the front?
Some CX-9 owners report that rear pads wear more quickly. This can be due to the vehicle's electronic brake force distribution, which uses the rear brakes to help stabilize the vehicle and prevent nose-diving during braking.
How do I put the Electronic Parking Brake in Service Mode?
While the exact steps can be found in DIY videos, the general process involves turning the ignition on (without starting the engine), pressing and holding the accelerator pedal, pressing and holding the EPB switch down, and then cycling the start/stop button three times. Always confirm the procedure for your specific vehicle before starting work. After the job is done, a similar process is used to take it out of service mode.
Helpful Videos
Technical Specifications
OEM Part Numbers: TKY8-33-28ZA (Front) TKY8-26-48ZB (Rear)
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Mazda CX-9:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is it Time for New Brake Pads?
- Known Vehicle-Specific Issues
- Choosing the Right Aftermarket Brake Pads for Your CX-9
- 1. Economy Pads (Daily Driver)
- 2. OEM-Equivalent Pads (Balanced Choice)
- 3. Performance / Heavy-Duty Pads (Upgrade)
- Cost to Replace Mazda CX-9 Brake Pads
- Special Note for Rear Brake Pad Replacement
- Frequently Asked Questions
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