MYRModel Year Report

2018 Mazda CX-9

◆ Worse than typical
2018 Mazda CX-9
RENDERED 2026-11-01T15:53:30.333Z

This year had 30% to 100% more complaints than this model's typical year.

This verdict reflects complaint volume compared to this model's typical year. Recalls and safety issues below apply regardless of the verdict — always check them.

How is this computed?

Complaints
128
Recalls
2

Campaigns on file for 2018

Investigations
0

None on file

Top problem
Engine

59% of complaints

Complaints per year

2007: 67 complaints 2007 2008: 172 complaints 2009: 59 complaints 2010: 162 complaints 2010 2011: 170 complaints 2012: 221 complaints 2013: 68 complaints 2013 2014: 54 complaints 2015: 35 complaints 2016: 107 complaints 2016 2017: 61 complaints 2018: 128 complaints 2018 128 2019: 53 complaints 2020: 19 complaints 2021: 39 complaints 2022: 11 complaints 2022 2023: 13 complaints
2007: 67 complaints 2007 2008: 172 complaints 2009: 59 complaints 2009 2010: 162 complaints 2011: 170 complaints 2011 2012: 221 complaints 2013: 68 complaints 2013 2014: 54 complaints 2015: 35 complaints 2015 2016: 107 complaints 2017: 61 complaints 2017 2018: 128 complaints 2018 128 2019: 53 complaints 2019 2020: 19 complaints 2021: 39 complaints 2021 2022: 11 complaints 2023: 13 complaints 2023
2007: 67 complaints 2007 2008: 172 complaints 2008 2009: 59 complaints 2009 2010: 162 complaints 2010 2011: 170 complaints 2011 2012: 221 complaints 2012 2013: 68 complaints 2013 2014: 54 complaints 2014 2015: 35 complaints 2015 2016: 107 complaints 2016 2017: 61 complaints 2017 2018: 128 complaints 2018 128 2019: 53 complaints 2019 2020: 19 complaints 2020 2021: 39 complaints 2021 2022: 11 complaints 2022 2023: 13 complaints 2023

2018: 128 complaints

View as data table
YearComplaints
200767
2008172
200959
2010162
2011170
2012221
201368
201454
201535
2016107
201761
2018128
201953
202019
202139
202211
202313

Known problem areas

Percentages can add to more than 100% — a complaint can name more than one system.

Engine

59% · 76 reports
Show complaint excerpts

While driving at highway speed in heavy rain the oil light suddenly came on followed within 30 seconds by an urgent need to immediately stop the car due to overheating.

NHTSA ODI report, 2026-09-17

My 2018 Mazda Cx-9 equipped with the skyactiv-g 2.5T developed a serious cylinder-head/cooling-system failure. The vehicle began to lose coolant with no apparent external leak and subsequently displayed and engine -overheating warning.

NHTSA ODI report, 2026-09-15

I was driving home from work and may car started overheating out of nowhere. I was stuck in traffic and white smoke was exiting my exhaust. I pulled over and all of my coolant leaked out of my car.

NHTSA ODI report, 2026-08-08

Electrical system

12% · 15 reports
FIRE
Show complaint excerpts

Passenger seat heater either had a grounding issue or shorted out, causing to seat to start smoldering and catching fire, destroying the seat.

NHTSA ODI report, 2026-01-28

Power train

10% · 13 reports

Service brakes

9% · 11 reports
CRASHINJURY
Show complaint excerpts

I'm constantly have a front windshield error : causing my vehicle to just automatically stoping while driving on the freeway and streets. My air bags didn't deploy when I was I a accident .

NHTSA ODI report, 2020-07-20

Also filed under Air bags

Fuel/propulsion system

4% · 5 reports

Safety timeline

2 recalls · 0 investigations · oldest first

To check one car, enter its VIN on the NHTSA recall page. Check a VIN →

  1. ▮
    2018Complaint volume 128 complaints filed for this model year.
  2. R
    2019-07-26Electrical system19V403000 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.

    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.

    Check if this car was fixed →

  3. R
    2022-07-18Fuel system, gasoline21V875000 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.

    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.

    Check if this car was fixed →

Buy-smart checklist

2018 Mazda CX-9 — pre-purchase inspection

Inspect

  • Engine: 76 reports on file for this year.
  • Electrical system: 15 reports on file for this year.
  • Power train: 13 reports on file for this year.

Verify these recalls were completed

  • Recall 19V403000 · Electrical system
  • Recall 21V875000 · Fuel system, gasoline
Inspected by ______________ Date ______________

Other years of this model

See all years ranked →

Best years2 years

Worst years3 years

FAQ

Is the 2018 Mazda CX-9 reliable?
Based on NHTSA complaint volume compared to this model's typical year, the 2018 Mazda CX-9 is rated "worse than typical".
What are the most common problems with the 2018 Mazda CX-9?
The most-reported component is engine, accounting for 59% of complaints on file.
How many recalls does the 2018 Mazda CX-9 have?
2 recalls on file for this model year.

Data updated 2026-10-31 · Complaints are unverified owner reports filed with NHTSA, not independently verified defects. Methodology.