What are some of the 2009 Kia Sedona transmission problems?

Some issues You may encounter with the transmission on the 2009 Kia Sedona is that it refuses to stay in gear, and sometimes You'll encounter a delayed shift, where there will be a lag effect between when You shift and it actually acknowledges it. Sometimes You may also have an erroneous transmission-related check engine light (CEL) illumination. To address the problems mentioned above and this one, You can see if Your local Kia dealership has a transmission software update that they'll reprogRam Your control module with; in many cases this will decisively resolve the issues for good.