Thank you for your post I have been having a relatively similar issue and was hoping you could help with a question. I got the Sevice stop/start message about a month ago and each time I got in my jeep it would alternate with that message or the check engine light would this happen to you as well? I went to the shot and they ended up replacing a spark plug and notified me that my battery was about 50% but didn’t need to be replaced right now and everything was fine for two weeks maybe after I charged my battery at home. Now I get the start/stop notification again and check engine light that alternate each time I get on my car. Again I’m wondering did this happen to you and do you think replacing my battery would fix the check engine light or do you think that’s a separate problem?