One problem related to automatic transmission has been reported for the 2008 Mazda CX9. The most recently reported issues are listed below.
My new 2008 Mazda cx-9 awd has gas pedal resonant vibrating issue when engine is right around 2000 rpm when I push gas pedal to accelerate especially when going uphill or turning.
| Transfer Case problems | |
| Power Train problems | |
| Driveshaft problems | |
| Vehicle Shudder problems | |
| Automatic Transmission problems | |
| Transmission Fluid Leaking problems | |
| Transmission Noise problems |