One problem related to power train has been reported for the 2009 Toyota Yaris. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 Toyota Yaris based on all problems reported for the 2009 Yaris.
2009 Toyota Yaris. Consumer writes in regards to transmission down-shifts automatically when speed is reduced.
| Automatic Transmission problems | |
| Manual Transmission problems | |
| Power Train problems |