I have had my car taken to Honda dealerships with an issue of all my warning lights would come on. No one has been able to fix the issue. The spark plugs, battery, air filters, have been replaced and diagnostic tests were done. The warning lights would stop for a couple of months and then start again. The last time all the warning lights came on my car began to stall and not got over 8 — 10 mph when I would start to drive. I would pull over, turn off my car, restart, then it would be ok to drive. The part that scared me was when I was on a busy highway, traveling close to 65 — 70 mph and my car stalled/lost power. Thankfully, I was able to pull to the side of the highway without getting myself or anyone hurt. I have since stopped driving on the highway. The last mechanic (Honda certified) has told me my head gasket needs replaced. Not something I would expect but it ds explain a lot of the issues I have been having. My car is parked until I am able to get it repaired.