I just recently started getting the ETC light when I start my 2010 Jeep Compass. It has happened twice. The light stays on while car engine is running idle. It even one time sounded like the engine was vibrating. I shut off the engine, restart, pressed down on accelarator that seemed to clear the problem, and I drove off. It started fine the next time. After a day not driving it the problem occured again. Any advice? Greatly appreciate it. Thanks.