YearToAvoid

2012 Mazda CX-9 Transmission & Powertrain Problems

NHTSA lists 18 Transmission & Powertrain complaints for the 2012 Mazda CX-9, 8% of its 221 total complaints for the year. Owners report transfer case failures, sudden stalling, and hard or erratic gear shifts, with a median failure mileage of 52,526. No related recall is listed for this area.

Transmission & Powertrain complaints
18
8% of 221
Crashes reported
1
Fires reported
0
Injuries reported
0
Median mileage
52,527 mi
Related recalls
0

Typical transmission symptoms owners report

  • Owners describe the transfer case failing or leaking, sometimes accompanied by a loud metallic noise and sudden loss of power on AWD models.
  • Some drivers report the vehicle decelerating and stalling unexpectedly at speed, even while the engine kept running.
  • Multiple owners describe hard or erratic shifting, including jolting between gears or the transmission skipping from a high gear down to a low one.
  • A few complaints mention a burning oil smell or overheating near the transfer case, which sits close to the catalytic converter.
  • One owner reported a water pump failure causing coolant to flood the crankcase and the engine to shut down without warning.

When 2012 Mazda CX-9 transmission complaints were filed

First complaint Oct 6, 2013, latest Jul 24, 2023.

2012 Mazda CX-9 transmission & powertrain complaints: complaints filed per month2Oct 2013Aug 2014Dec 2015Nov 2017Apr 2018Jun 2018Feb 2019Oct 2022
18 complaints filed with NHTSA from Oct 2013 to Jul 2023; peak Nov 2017 (2).

Transmission & Powertrain recalls for the 2012 Mazda CX-9

No safety recalls on record for this model year.

Transmission & Powertrain complaints by CX-9 model year

Raw complaint counts per model year; newer years have had less time to accumulate complaints.

  1. 201023 (12%)
  2. 201125 (15%)
  3. 201218 (8%)
  4. 20135 (7%)
  5. 20147 (13%)
  6. 20153 (9%)
  7. 20169 (9%)
  8. 20174 (7%)
  9. 201813 (10%)
  10. 20195 (9%)
  11. 20202 (11%)
  12. 20214 (10%)
  13. 20221 (10%)
  14. 20230 (0%)

Frequently asked questions

How many transmission and powertrain complaints does the 2012 Mazda CX-9 have?
NHTSA lists 18 Transmission & Powertrain complaints for the 2012 CX-9, which is 8% of the 221 total complaints filed for that model year.
Is there a recall for the 2012 Mazda CX-9 transmission or transfer case?
No related recall is listed in the data for the Transmission & Powertrain area on the 2012 CX-9.
At what mileage do 2012 CX-9 transmission problems usually appear?
The median mileage at failure for Transmission & Powertrain complaints on the 2012 CX-9 is 52,526 miles.
What specific transmission problems do owners report on the 2012 CX-9?
Owners describe transfer case failures, sudden stalling with the engine still running, and hard or erratic gear shifts, sometimes with a burning smell.
Did any 2012 CX-9 transmission complaints involve crashes?
Yes, NHTSA data shows 1 crash associated with this problem area for the 2012 CX-9, and no fires or injuries.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.