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Total NHTSA Complaints
35
Owner filings recorded
#1 Reported Problem
Engine & Cooling
17 reports (48.6%)
Crash Incident Reports
1
Filings citing a crash
Fire & Injury Reports
2
0 fire • 2 injury filings
Defect Investigation Analysis

Executive Problem Findings

AutoUtility currently tracks 35 official NHTSA owner defect complaints for the 2015 Mazda CX-9. Engine & Cooling issues are the most frequently reported category, appearing in 17 complaints (48.6% of submitted records). Among these NHTSA complaint records, 1 filing cites a crash, 2 report one or more injuries.

Methodology Notice: Consumer complaints are unverified voluntary submissions to the NHTSA Office of Defects Investigation (ODI). Filings are not normalized for sales volume or vehicle mileage and do not constitute an audited component failure rate.
Incident & Severity Profile
  • • Total Owner Reports: 35 complaints submitted under federal penalty.
  • • Primary Subsystem: Engine & Cooling accounts for 48.6% of submissions (17 reports).
  • • Secondary Systems: Powertrain & Transmission (3), Brakes & Traction Control (3).
  • • Crash Incidents: 1 filings cite an impact or collision.
  • • Thermal Incidents: 0 filings cite smoke or fire.
  • • Reported Casualties: 2 injury filings • 0 fatality filings.
Category Distribution

Reported Defect Categories for 2015 Mazda CX-9

Factual proportion of owner complaints categorized by automotive subsystem in NHTSA records

Engine & Cooling
17
48.6%
Powertrain & Transmission
3
8.6%
Brakes & Traction Control
3
8.6%
Air Bags & Restraints
3
8.6%
Exterior Lighting
2
5.7%
#1 48.6% SHARE

Engine & Cooling

17 owner complaints submitted to NHTSA ODI for this subsystem.

✓ 0 Incidents
#2 8.6% SHARE

Powertrain & Transmission

3 owner complaints submitted to NHTSA ODI for this subsystem.

✓ 0 Incidents
#3 8.6% SHARE

Brakes & Traction Control

3 owner complaints submitted to NHTSA ODI for this subsystem.

✓ 0 Incidents
#4 8.6% SHARE

Air Bags & Restraints

3 owner complaints submitted to NHTSA ODI for this subsystem.

⚠️ 1 Crash 🩹 3 Injury
⚠️ 1 Associated Recall Campaign
Consumer Filings

Recent NHTSA Owner Reports for 2015 Mazda CX-9

Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation

Engine & Cooling ODI #11652669
Filed: 04/03/2025
Defect Report

"My Mazda has been serviced regularly, in fact my next oil change isn't for 2,000 more miles. I was driving when I heard this weird noise. I looked at the dash and the oil light was flashing and the temperature was over heating. I could also feel the vehicle getting sluggish. I pulled over on the..."

Powertrain & Transmission ODI #11608589
Filed: 08/14/2024
Defect Report

"We have a 2015 Mazda CX-9 Touring with All-Wheel Drive (AWD). The issue that has been happening is a flashing check engine light (CEL) indicator showing up in the gauge cluster. This issue originally started in October of 2023. I was on the highway doing at least 55 miles per hour (mph). Before the..."

Other / Miscellaneous ODI #11591627
Filed: 05/30/2024
Defect Report

"2015 transmission problem Mazda dealership unable to affect because transmissions are no longer made for my model"

Engine & Cooling ODI #11569248
Filed: 02/01/2024
Defect Report

"The contact owns a 2015 Mazda CX9. The contact stated that while driving at approximately 55 MPH, the vehicle shut off. The contact stated that the engine was overheating. The contact restarted the vehicle, and the vehicle stalled again. The vehicle continued to coast into a parking lot. There were..."

Engine & Cooling ODI #11544460
Filed: 09/14/2023
Defect Report

"The issue is with the design of the Water Pump on this vehicle. From my understanding, this is a common issue with the 2015 Mazda CX-9. What happens is once the water pump starts to fail due to the design, the vehicle starts to stall randomly which poses a safety issue to my family when driving...."

Multi-Year Trend

Complaint History for Mazda CX-9

Reported defect complaint volume across sibling model years (2015–2026)

Model Year NHTSA Complaints Crash Reports Safety Recalls Detailed Report
2015 Mazda CX-9 Current Page 35 1 2 Current
2016 Mazda CX-9 99 3 0 View 2016 Problems →
2017 Mazda CX-9 61 0 0 View 2017 Problems →
2018 Mazda CX-9 126 4 2 View 2018 Problems →
2019 Mazda CX-9 53 1 2 View 2019 Problems →
2020 Mazda CX-9 19 1 1 View 2020 Problems →
2021 Mazda CX-9 37 7 1 View 2021 Problems →
2022 Mazda CX-9 9 1 0 View 2022 Problems →
2023 Mazda CX-9 12 3 0 View 2023 Problems →
2024 Mazda CX-9 0 0 0 View 2024 Problems →
2025 Mazda CX-9 0 0 0 View 2025 Problems →
2026 Mazda CX-9 0 0 0 View 2026 Problems →
Exhaustive System Audit

Detailed NHTSA Component Breakdown for 2015 Mazda CX-9

Complete distribution of consumer defect reports across all 17 granular NHTSA system and subsystem classifications

Vehicle Component / System Total Complaints Crash Reports Fire Reports Injury Entries Fatality Entries
Engine NHTSA category: ENGINE 11 0 0 0 0
Other / Uncategorized NHTSA category: UNKNOWN OR OTHER 5 0 0 2 0
Air Bags NHTSA category: AIR BAGS 2 1 0 3 0
EXTERIOR LIGHTING 2 0 0 0 0
Service Brakes NHTSA category: SERVICE BRAKES 2 0 0 0 0
UNKNOWN OR OTHER,ENGINE 2 0 0 0 0
ELECTRICAL SYSTEM,ENGINE 1 0 0 0 0
ELECTRONIC STABILITY CONTROL (ESC),SERVICE BRAKES 1 0 0 0 0
Engine & Cooling NHTSA category: ENGINE AND ENGINE COOLING 1 0 0 0 0
Powertrain NHTSA category: POWER TRAIN 1 0 0 0 0
POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM 1 0 0 0 0
POWER TRAIN,UNKNOWN OR OTHER,ENGINE 1 0 0 0 0
SEAT BELTS,UNKNOWN OR OTHER 1 0 0 0 0
Seats & Restraints NHTSA category: SEATS 1 0 0 0 0
STEERING,ENGINE 1 0 0 0 0
Visibility / Glass NHTSA category: VISIBILITY 1 0 0 0 0
Visibility & Wipers NHTSA category: VISIBILITY/WIPER 1 0 0 0 0
Search Intelligence

Quick Answers: Common Problems & Reliability Questions for the 2015 Mazda CX-9

Direct, deterministic answers synthesized from verified United States government databases for the 2015 Mazda CX-9

What are the most common reported problems with the 2015 Mazda CX-9?

In official NHTSA consumer records, the most frequently cited issue area for the 2015 Mazda CX-9 is Engine & Cooling, appearing in 17 records (48.6% of submitted filings).

Secondary reported categories include Powertrain & Transmission (3) and Brakes & Traction Control (3).

Source: NHTSA Office of Defects Investigation (ODI)

Is the 2015 Mazda CX-9 a reliable vehicle?

AutoUtility does not issue subjective reliability scores or commercial ratings. In official United States government records, NHTSA tracks 35 consumer defect complaints and 2 safety recall campaigns for the 2015 Mazda CX-9.

Reviewing documented component complaint distributions, recall remedy notices, and active federal investigations provides an objective, evidence-based view of the vehicle's historical safety and defect record.

Source: NHTSA ODI & Safety Recalls Databases

Are there crash, fire, or injury reports associated with the 2015 Mazda CX-9?

Among consumer complaint records on file with NHTSA for the 2015 Mazda CX-9, 1 filing cites a crash, 0 cite smoke or fire, and 2 report one or more injuries.

Incident entries represent consumer descriptions at the time of submission to federal authorities and do not establish mechanical causation or legal liability.

Source: NHTSA Office of Defects Investigation Consumer Logs
Official US Government Data Provenance

The complaint records on this page are retrieved directly from the NHTSA Office of Defects Investigation (ODI) public database under 49 CFR Part 576.

Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.