Of the 13 electrical complaints filed for the 2018 Mazda CX-9,
here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
0-25k
1 (100%)
25-50k
0 (0%)
50-75k
0 (0%)
75-100k
0 (0%)
100-125k
0 (0%)
125-150k
0 (0%)
150k+
0 (0%)
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted.
Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits
and driving conditions shift the curve as much as mileage alone.
What stands out
Of the 9 model years of Mazda CX-9 we track for electrical problems, this one carries the most owner complaints on file — 13.
No new NHTSA electrical complaint has been filed on this vehicle in over 7 years — the issue may be aging out of the active population.
Mazda North American Operations (Mazda) is recalling certain 2018 CX-9 vehicles
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.
Fix: 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.
What owners are reporting
1 most recent
electrical · 10,352 mi
· filed 10/26/2018
While driving the vehicle the car to an abrupt stop and I had no control. The dashboard lit up with all types of warnings and heat was coming from the front of the car.
Had electrical trouble with your 2018 Mazda CX-9?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the electrical problem on the 2018 Mazda CX-9?
It's a meaningful issue. 13 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Based on the 13 complaints filed, electrical issues most often appear around 14,426 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
Yes — 1 active recall(s) cover electrical issues on this vehicle. Recall fixes are always free regardless of mileage or warranty status. Use the VIN decoder at the top of the page to check if your specific vehicle is affected.
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2018/Mazda/CX-9.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.