One problem related to check engine light on has been reported for the 2013 Hyundai Genesis. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2013 Hyundai Genesis based on all problems reported for the 2013 Genesis.
Vehicle had previously backfired periodically, especially when downshifting. Was starting from full stop, engine was sputtering, check engine light was on, tachometer was below 500 rpm. Vehicle was driveable, but acceleration was difficult due to sputtering engine. Drove directly to dealer - vehicle was diagnosed and repaired same day (04/15/2013). Service writer provided copy of factory technical service bulletin #12--FL-007 (July 2012), which states as follows. "this bulletin provides information related to the gdi idb (injector driver box) ecu software update of some 3. 3l/3. 8l vehicles that may experience any of the flolowing dtc stored: p0300: random/multiple cylinder misfire detected p0301: cylinder 1 - misfire detected p0302: cylinder 2 - misfire detected p0303: cylinder 3 - misfire detected p0304: cylinder 4 - misfire detected p0305: cylinder 5 - misfire detected p0306: cylinder 6 - misfire detected" service writer verbally advised that misfire was detected in cylinder 5, but this problem was not stated on repair order. He also indicated that problem may recur. Dealer should have notified all existing vehicle owners at time technical service bulletin was issued.