2010 Mazda CX-9 Transmission & Power Train Problems
NHTSA component category: POWER TRAIN · data through 07/14/2026
Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
How power train ranks on this vehicle
Share of the 195 complaints citing each category; one complaint can cite several. Full breakdown on the 2010 Mazda CX-9 overview page.
What owners report
“I WAS DRIVING MY 2010 MAZDA CX9 WHEN A LOUD BANG HAPPENED. I WAS ON A SIDE ROAD AND STOPPED IMMEDIATELY, I COULD NOT VISIBLY…”NHTSA complaint 11131702 — filed 09/26/2018
“THIS MAZDA CX-9 IS A 2010 WITH ABOUT 62000 MILES ON IT. I WAS DRIVING ON A HIGHWAY WITH 70 MPH. SUDDENLY, I HEARD NOISE…”NHTSA complaint 11093538 — filed 05/13/2018
“TRANSFER CASE FAILURE CABIN FILLING WITH ACID SMOKE FROM BEARING FAILURE IN TRANSFER CASE, CAR WAS DRIVEN TO LOCAL GARAGE FOR REPLACEMENT NOT COVERED EVEN…”NHTSA complaint 11062879 — filed 01/15/2018
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Power Train complaints by year filed
Frequently asked questions
Does the 2010 Mazda CX-9 have transmission & power train problems?
Power Train is the #3 most-reported problem area on the 2010 Mazda CX-9: 22 of 195 complaints on file (11.3%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2010 Mazda CX-9 have in total?
195 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 7 involved a crash, 5 involved a fire, 6 reported injuries, and none reported deaths.
What does NHTSA's power train category include?
NHTSA groups complaints about the transmission (automatic or manual), driveline, axles, transfer case and related parts under a single component category called POWER TRAIN. This page reports that category as NHTSA defines it.
