First I'd like to thank you guys for all of your help. Recently received a text message on my car stating the transmission needed to be serviced. The transmission fluid and filter were changed. The message remained. When the car starts out the transmission changes perfectly until I have driven about 5 miles or so. Then it will began to strain slightly. All I have to do is shut the car off and restart it immediately and the gears will change perfectly again. Again after driving about 5 miles or so the transmission will began to strain slightly again. I shut the car off restart it immediately and the gears change without a problem. The car never cools down. All I have to do is simply shut the car off and restart it and the gears shift without any problems. This is so odd. Do you have any ideas about what might be going on? Thanks for all of your help. Don't know what we would do without you guys. Thanks so much.

Sounds like the fluid level is too low. Check the fluid level.

i think fluid level is low too. but you can see some cables under the air filter, on the gearbox. if they are well :) i think it is electronic problem somewere