What causes Electronic Throttle Control to malfunction? How to correct it? on 2010 Jeep Compass

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.

Asked by for the 2010 Jeep Compass
HOW MANY MILES ON THIS 2010 JEEP? MAY WANT TO SEE DEALER AND ASK ABOUT WARRANTY.
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