Mazda CX-9 2018 recalls, problems, complaints and safety

NHTSA lists 2 safety recalls issued for the Mazda CX-9 2018 and 128 complaints filed by owners. It has 40% more complaints than the average Mazda CX-9 from 2016–2025 (92 per year).

These are recalls issued for this model and year, not for your specific car. A car may already be repaired or may not be included. Confirm with your VIN on NHTSA.

Recalls issued for the Mazda CX-9 2018

Fuel system
NHTSA campaign 21V875000 · 2021-11-12

What happens

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.

Consequence

Fuel pump failure may cause an engine stall, increasing the risk of a crash.

Remedy

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.

The repair is free at any dealer of the brand.

NHTSA 21V875000

Electrical system
NHTSA campaign 19V403000 · 2019-05-30

What happens

Mazda North American Operations (Mazda) is recalling certain 2018 CX-9 vehicles. The wiring harness may disrupt electrical communications and disable the passenger frontal air bag, turn signals, and/or engine starting system.

Consequence

The passenger frontal air bag may not deploy, increasing the risk of injury. Inoperable turn signals prevent the driver from signaling to other drivers, increasing the risk of crash.

Remedy

Mazda will notify owners, and dealers will repair the wiring harnesses, free of charge. The recall began July 26, 2019. Owners may contact Mazda customer service at 1-800-222-5500, Option 4. Mazda's number for this recall is 3419E.

The repair is free at any dealer of the brand.

NHTSA 19V403000

Complaints from other owners

128 complaints filed with NHTSA by owners of this model.

4 with a crash · 1 with a fire · 2 injuries

Most reported problems on the Mazda CX-9 2018

• Engine: 76 (59% of complaints)
• Electrical system: 15 (12% of complaints)
• Powertrain and transmission: 13 (10% of complaints)
• Brakes: 11 (9% of complaints)
• Fuel and propulsion: 5 (4% of complaints)

Complaints are written by owners and NHTSA doesn't verify each one. They're useful to spot trends.

What to check before buying a Mazda CX-9 2018

• Confirm by VIN on NHTSA that the recalls on this list were repaired.
• Start it cold, listen for noises, look for oil or coolant leaks and exhaust smoke.
• Test lights, windows, locks, the screen and dashboard warning lights; have trouble codes scanned.
• On the test drive, check for smooth shifts with no jerks, slipping or noises; check the transmission fluid condition.
• Get an inspection from an independent mechanic before paying.

Safety rating (NCAP)

Mazda CX-9 recalls by year

• 2016 : 0 recalls · 99 complaints
• 2017 : 0 recalls · 61 complaints
• 2018 : 2 recalls · 128 complaints
• 2019 : 2 recalls · 53 complaints
• 2020 : 1 recall · 19 complaints
• 2021 : 1 recall · 40 complaints
• 2022 : 0 recalls · 11 complaints
• 2023 : 0 recalls · 13 complaints
• 2024 : 0 recalls · 456 complaints
• 2025 : 2 recalls · 35 complaints

Guides for this check

• What is a car recall and how to get it fixed for free
• Pre-purchase inspection for a used car: what to check
• Questions to ask the seller of a used car

Frequently asked questions

How many recalls does the Mazda CX-9 2018 have?

NHTSA lists 2 safety recalls issued for the Mazda CX-9 2018. That doesn't mean every car has them open: confirm with the VIN at nhtsa.gov/recalls. The repair is free at the dealer.

What is the most common problem with the Mazda CX-9 2018?

In complaints filed with NHTSA, the most mentioned component is: engine (76 of 128 complaints). Complaints aren't verified one by one, but they show trends.