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2012 Mazda CX-9: engine and transmission complaints

NO ELEVATED SIGNAL
21%
40 of 195 relevant owner complaints are about the engine, transmission or fuel system

No elevated drivetrain complaint concentration in the available NHTSA records for the 2012 Mazda CX-9. Engine, transmission and fuel system account for 21% of relevant complaints.

Better than 86% of the 1,230 model years we track (2010–2023).

Excludes 26 airbag, lighting and seat-belt recall complaints that would otherwise mask the signal (unadjusted: 18%).

NHTSA data checked September 13, 2026
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Drivetrain complaints
40
engine, transmission, fuel
Total complaints
221
this model year
Fires reported
0
owner-reported
Recall campaigns
4
9 crashes · 8 injuries

Complaints by component

SERVICE BRAKES143 · 65%
ENGINE25 · 11%
AIR BAGS23 · 10%
POWER TRAIN18 · 8%
VEHICLE SPEED CONTROL11 · 5%
SUSPENSION9 · 4%

The years either side

2010
28%
49 of 195
2011
26%
38 of 170
2012
21%
40 of 221
2013
39%
22 of 68
2014
47%
24 of 54
2015
63%
19 of 35
2016
74%
72 of 99
2017
80%
49 of 61
2018
68%
82 of 126
2019
47%
25 of 53
2020
too few complaints
2021
61%
22 of 38
2022
too few complaints
2023
too few complaints

Manufacturers fix things mid-generation. A bad year next to a clean one is common; the fix usually arrived in between.

What owners reported

POWER TRAIN07/24/2023
The water pump suddenly started leaking and the mechanics I talk to said this is a very common problem with this vehicle and type of engine. Sounds like owners are left to foot the bill for this costly and difficult repair of a defective product. Hopefully more owners come forward and report their experience in this re…
STEERING,POWER TRAIN,ENGINE10/28/2022
After hearing low rumbling sound and smelling burnt oil, car was taken to dealer for check up. They informed me of known issue, front PTU leaking oil due to design flaw that put the PTU so close to the exhaust. I am seeing that other owners of this model are also reporting fires due this same exact problem, apparently …
ENGINE01/07/2022
CAR IDELS UP AT STOP SIGNS

Three of 40 drivetrain complaints. The full report shows more, with quotes about the engine in the car you are looking at first.

Recall campaigns on this model year (4)

AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE
Mazda North American Operations (Mazda) is recalling certain 2014-2015 Mazda CX-9 vehicles sold, or ever registered in the states of Alabama, California, Florida, Georgia…
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE
Mazda North American Operations (Mazda) is recalling certain 2007-2012 CX-7, CX-9, and 2009-2012 Maza6 vehicles. These vehicles had their passenger frontal air bag infla…
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE
Mazda North America Operations (Mazda) is recalling certain 2012 CX-7, CX-9 and Mazda6 vehicles sold, or ever registered, in the states of Alabama, California, Florida, G…

This does not say whether a particular car has an open, unrepaired recall. That depends on the VIN.

Before you buy a 2012 Mazda CX-9

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Experimental model-level information. This is not a vehicle inspection, vehicle-history report, financial advice or purchase recommendation. It describes patterns across a model year, not the condition of any individual vehicle.