Manufacturer-recommended service intervals and open recall alerts for your 2019 Mazda Cx 9.
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Mazda's Skyactiv engines use unusually high compression ratios (13:1 to 16:1) and require strict adherence to oil intervals — extending oil life on a Skyactiv engine accelerates carbon buildup on intake valves. Mazda's published Schedule 1 (severe) covers most US driving conditions. Mazda3, CX-5, CX-30, and CX-50 share the Skyactiv-G platform.
FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
Campaign #21V875000 · Dec 11, 2021
Issue: Mazda North American Operations (Mazda) is recalling certain 2018 Mazda3, Mazda6, 2019 CX-3, 2018-2019 MX-5, CX-5, CX-9, and 2019-2020 Mazda2 vehicles. The impeller inside the low-pressure fuel pump may crack and deform, potentially causing the fuel pump to fail.
Risk: Fuel pump failure may cause an engine stall, increasing the risk of a crash.
Fix: Dealers will replace the fuel pumps, free of charge. Owner notification letters were mailed July 18, 2022. Owners may contact Mazda customer service at 1-800-222-5500 Option 4. Mazda's number for this recall is 5321K.
TIRES:TREAD/BELT
Campaign #19V770000 · Oct 28, 2019
Issue: Mazda North American Operations (Mazda) is recalling certain 2019 CX-9 vehicles equipped with Sumitomo Falken ZIEX CT50 A/S tires, size P255/50R20 104V, having date code 1619. An incorrect rubber compound may have been used in the tire's manufacturing, allowing the tread to separate and detach.
Risk: A detached tire tread can decrease vehicle stability and increase the risk of a crash.
Fix: Mazda will notify owners, and dealers will inspect all four tire serial numbers, replacing the tires as necessary, free of charge. The recall began December 4, 2019. Owners may contact Mazda customer service at 1-800-222-5500, Option 4. Mazda's number for this recall is 4019J.
Critical for safety and preventing major damage
Replace 0W-20 full-synthetic oil every 5,000 miles under Schedule 1. Schedule 2 (highway-only): 7,500 miles. Mazda CX-50 Turbo and CX-9: 5,000 miles regardless of schedule.
Estimated cost — typical U.S. ranges
Dealer
~$120–$160
Shop
~$85–$115
DIY
~$25–$55
Full synthetic costs more than conventional. 5-quart 0W-20 + filter is the typical bill.
Rotate tires every 7,500 miles. AWD CX-5, CX-50, and CX-9: 5,000 miles to prevent uneven wear from front-biased AWD coupling.
Estimated cost — typical U.S. ranges
Dealer
~$85
Shop
~$60
DIY
Free
Often free at the shop where you bought the tires — worth asking before paying.
Inspect brake pads, rotors, and parking brake at every oil change. Mazda3 and CX-5 front pads typically last 35,000-50,000 miles.
Estimated cost — typical U.S. ranges
Dealer
~$85
Shop
~$60
DIY
Free
Most shops do this free as a courtesy with any service. Don't pay separately if you can avoid it.
Replace DOT 3 brake fluid every 30,000 miles or 36 months.
Estimated cost — typical U.S. ranges
Dealer
~$180–$200
Shop
~$125–$140
DIY
~$10–$25
DOT 3 or 4 — match the cap. Vacuum bleeders make this a one-person DIY.
Keeps your vehicle running smoothly and efficiently
Replace engine air filter every 30,000 miles. Skyactiv-G direct injection is sensitive to airflow restriction — inspect at every oil change.
Estimated cost — typical U.S. ranges
Dealer
~$60–$95
Shop
~$45–$70
DIY
~$15–$40
5-minute job on most cars; the airbox lid usually has clips, no tools needed.
Replace ATF every 60,000 miles severe / 100,000 normal. Use Mazda FZ ATF — substitutes cause harsh 1-2 shifts and torque converter shudder.
Estimated cost — typical U.S. ranges
Dealer
~$330–$500
Shop
~$235–$355
DIY
~$60–$180
Some sealed transmissions have no dipstick — fill is precise and best left to a shop. Many drivers can still DIY drain-and-fill.
Iridium spark plugs every 60,000 miles on Skyactiv-G 2.0L and 2.5L. CX-50 Turbo and CX-9 Turbo: 45,000 miles.
Estimated cost — typical U.S. ranges
Dealer
~$285–$390
Shop
~$200–$275
DIY
~$25–$100
Iridium plugs cost more but last 100k+ miles. V6/V8 access varies wildly — some are tough.
Mazda FL-22 (yellow): first change at 120,000 miles or 10 years, then every 60,000. Do not substitute — silicate-free formula prevents water pump damage on Skyactiv engines.
Estimated cost — typical U.S. ranges
Dealer
~$285–$330
Shop
~$200–$235
DIY
~$25–$60
Use the manufacturer-specified coolant — wrong color/chemistry can damage the cooling system.
AWD CX-5, CX-50, CX-9: replace transfer case fluid and rear diff fluid every 60,000 miles.
Estimated cost — typical U.S. ranges
Dealer
~$105–$140
Shop
~$75–$100
DIY
~$15–$40
AWD/4WD vehicles only. Easy drain-and-fill on most platforms.
Extends the life of your vehicle and improves comfort
Replace cabin air filter every 15,000 miles. Behind the glove box on Mazda3, CX-5, CX-30, and CX-50.
Estimated cost — typical U.S. ranges
Dealer
~$60–$95
Shop
~$45–$70
DIY
~$15–$40
Usually behind the glovebox. Shops charge labor for a 10-minute job — easy DIY win.
What drivers and federal regulators have officially reported about the 2019 Mazda Cx 9.
NHTSA has 52 complaints on file for the 2019 Mazda Cx 9 (2019-03 → 2026-07). We haven't reviewed and grouped them yet for this specific vehicle — for now, the full list lives on NHTSA.
Top reported components: ENGINE (22) · UNKNOWN OR OTHER (13) · ELECTRICAL SYSTEM (7)
Issues on other model years
Source: NHTSA Office of Defects Investigation (ODI). Complaint data refreshed Jul 27, 2026. Investigation data refreshed Jul 27, 2026.
We display NHTSA's record with attribution; we don't editorialize on what these complaints mean for any specific vehicle.
Typical U.S. ranges. Actual quotes vary by shop, parts choice, and vehicle condition.
How we estimate: Dealer = OEM parts × 1.4 + labor × $165/hr. Shop = parts + labor × $115/hr. DIY = parts only.
This maintenance schedule for the 2019 Mazda Cx 9 reflects Mazda's published service intervals. Your actual service needs may vary based on driving conditions, climate, and vehicle usage. Always consult your owner's manual for model-specific recommendations.