This morning the display indicated I needed an oil change, and on my way to work I felt the acceleration almost hesitating. On my way home the acceleration slowed for just a second and a lightning bolt flashed on the dash for just a second and then it was gone. It seems to drive fine except for the slight hesitation (or maybe gear transition?) which I thought was just due to needing an oil change. What could this mean? The light isn't on so I can't take it to have the code ran at AutoZone, can I?