One problem related to tire sidewall has been reported for the 2009 Mazda CX9. The most recently reported issues are listed below.
While driving under normal, dry conditions on highway 540 in north carolina, my right rear copper cs5 ultra touring tire catastrophically failed and separated the tread completely from the sidewall of the tire on my 2009 Mazda cx-9.
| Tire Pressure Monitoring System problems | |
| Tire Sidewall problems |