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#BS-2018-MAZCX9-41E4

2018 Mazda Cx 9

Based on reports from 157 owners and 2 recalls for this exact model.

Complaints
157
Crashes
6
Fires
1
Recalls
2
TSBs
463
🟡

Preliminary Verdict

Think Twice

Based on 157 complaints, 6 crashes, 1 fires, and 2 recalls.

See full verdict with buy/skip conditions

Top reported problems

1

infotainment screen spider crackng

1 complaints • Severity 6/10

$X,XXX
2

infotainment system problems

1 complaints • Severity 10/10

$X,XXX
3

catastrophic engine overheating

1 complaints • Severity 10/10

$X,XXX

Preview: What's in your full report

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Mechanic Inspection Checklist

!Check the EngineHIGH

72 owners reported engine issues — failures commonly reported around 19K miles.

!Inspect the ElectricalMED
Look for symptoms of wear and premature failure
+ 6 more items in full checklistUnlock

Failure Timeline by Mileage

18
0–30K
2
30–60K
5
60–90K
90–120K
120–150K
150K+

Peak failure range: 0–30K miles (18 reports) • Median: 19K miles

Full report: which components fail at each mileageUnlock

30,000-Mile Cost Projection

Best Case

$X,XXX

Most Likely

$X,XXX

Worst Case

$X,XXX

Top cost driver: Engine (72 reports).

Includes fuel costs, common repairs, and recall riskUnlock

Also in your report

Owner Intelligence

AI-synthesized themes from real complaints

Buyer Lot Checklist

Questions, test drive checks, walk-away triggers

Negotiation Talking Points

Data-backed dollar deductions

Buy / Skip Verdict

Final recommendation with conditions

10 sections total in the full reportUnlock all

Where the complaints fall

Engine72 (46%)
Other19 (12%)
Electrical14 (9%)
Drivetrain12 (8%)
Brakes10 (6%)
Fuel System6 (4%)
Forward Collision Avoidance: Automatic Emergency Braking3 (2%)
Steering3 (2%)

2018 Mazda Cx 9: Known Issues & Problem Areas

Engine Issues

Engine complaints account for 46% of all reports filed for the 2018 Mazda Cx 9, with 72 owners filing complaints with NHTSA. The median mileage at time of complaint is 18,500 miles, suggesting issues tend to surface around the 19K-mile mark.

Electrical Issues

Electrical complaints account for 9% of all reports filed for the 2018 Mazda Cx 9, with 14 owners filing complaints with NHTSA. Owners should pay attention to electrical-related symptoms during test drives and pre-purchase inspections.

Drivetrain Issues

Drivetrain complaints account for 8% of all reports filed for the 2018 Mazda Cx 9, with 12 owners filing complaints with NHTSA. Owners should pay attention to drivetrain-related symptoms during test drives and pre-purchase inspections.

Brakes Issues

Brakes complaints account for 6% of all reports filed for the 2018 Mazda Cx 9, with 10 owners filing complaints with NHTSA. Owners should pay attention to brakes-related symptoms during test drives and pre-purchase inspections.

Data sourced from NHTSA owner complaints and community reports. The full report analyzes severity, repair costs, and failure patterns for each category.

Complaint trend by year

2
17
3
18
9
19
5
20
8
21
29
22
44
23
36
24
19
25
2
26

Complaints filed with NHTSA by year for the 2018 Mazda Cx 9. Recent trend: decreasing.

Don't negotiate blind — know what this car costs to own

Repair costs • Negotiation scripts • Mechanic checklist • Buy/skip verdict

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Recall History (2 recalls)

19V403000Jul 2019

ELECTRICAL SYSTEM:WIRING

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.

21V875000Jul 2022

FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

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.

Recall severity analysis & seller scripts

The full report rates each recall's severity and gives you scripts for asking the seller about recall completion.

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The worst model year for the Mazda Cx 9 is the 2015 — worth knowing if you're cross-shopping years. The biggest problem area is brakes.

2018 Mazda Cx 9 vs. Class Average (Small Sport Utility Vehicle 2WD)

This vehicle

157

Class avg

436

Below the class average — fewer complaints than typical small sport utility vehicle 2wd vehicles. A good sign.

Complaint counts correlate with sales volume — popular vehicles naturally generate more reports. The full report normalizes for this.

About this data

NHTSA Complaints

Federal database of owner-filed safety complaints. 157 records for this vehicle.

NHTSA Recalls

Manufacturer-issued safety recalls. 2 recalls found for this vehicle.

Repair Cost Data

Real-world repair costs from owner reports and independent databases.

Other Mazda Cx 9 Model Years

20262025202420232022202120202019201820172016201520142013201220112010200920082007
View all Mazda Cx 9 years →

2018 Mazda Cx 9: Frequently Asked Questions

What is the most common problem with the 2018 Mazda Cx 9?
The most commonly reported issue with the 2018 Mazda Cx 9 is related to the engine, with 72 complaints filed with NHTSA.
Is the 2018 Mazda Cx 9 reliable?
The 2018 Mazda Cx 9 has 157 complaints, 6 crash reports, and 1 fire reports filed with NHTSA. This is below the class average — a positive sign for reliability.
How much does it cost to fix 2018 Mazda Cx 9 problems?
Repair costs vary by issue. The full BumperScan report includes detailed repair cost estimates (low/median/high) for every major issue, plus a 30,000-mile total cost of ownership projection.
Does the 2018 Mazda Cx 9 have any recalls?
Yes, the 2018 Mazda Cx 9 has 2 recalls on record. The full report includes recall severity analysis and scripts for asking the seller about recall completion.
What mileage do Mazda Cx 9 problems start?
Based on 25 complaints with mileage data, the median mileage at time of complaint is 18,500 miles. The highest concentration of reported issues occurs in the 0–30K mile range. The full report breaks down exactly which components fail at each mileage bracket.
What’s in the full report?
10 sections of AI analysis: severity-ranked issues, component scores (0-100), 30K-mile cost projection, failure timeline by mileage, recall details with seller scripts, owner sentiment analysis, mechanic checklist, buyer lot checklist, negotiation ammo with dollar figures, and a buy/skip verdict.
How is this different from free NHTSA data?
NHTSA gives you raw complaint text. BumperScan cross-references 2.1M+ complaints with community repair cost data, EPA fuel data, and recall records — then uses AI to synthesize it into actionable advice with dollar figures.
How is this different from Carfax?
Carfax is VIN-specific history ($45/report). BumperScan is model-level reliability intelligence — what problems this car is known for, what they cost, and whether you should buy it. Complementary, not competing.
What if the report isn’t useful?
100% money-back guarantee. If the report doesn’t help you make a more informed decision, we’ll refund you — no questions asked.
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10 sections of AI analysis based on 157 owner reports. Know before you buy.

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