2005 Chevrolet Aveo "replace battery night stick flash" Questions

...night while driving I used the hi/low light stick to flash an oncoming car of their high beams. When I did this the entire electrical system reset and the engine sputtered. This continued for several ...

...night time running lights. My driver rear turn signal would not work when the headlight were on and flashed very rapid if the headlights were off. At the time the passenger turn signal worked just ...