Intelligent Key Warning Light Issue

DCCSyr

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I have an issue with my M37X. The warning light Key System Error came on after leaving the car in ACC mode with the radio on for 1.5 hours. I jump-started the car; it starts and works perfectly, but the light stays on. I need to press the page button to remove it. My OBDII analyzer doesn't detect or clear it. Another forum stated they brought it to a dealer who couldn't figure it out, then to one who reset it for free. My dealer said he needed to do a full evaluation and keep the car. I asked if he could just reset the code. He said he would for a half-hour of labor $72.50 + tax. Any suggestions?
 
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