An idle fluctuation may be noted, the Check Engine Light may or may not illuminate. Replacing the throttle position sensor and updating the powertrain control module (PCM) software will commonly correct this concern.
Car problem reports
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Most reported 2009 Hyundai Genesis 3.8 problems
A rough idle or hard starting condition may develop, most noticeable when the engine is cold, with fault code P161B stored in the powertrain control module (PCM). Our technicians tell us that a PCM software upgrade is available to correct this concern.
The theft system alarm may sound for no apparent reason. The is commonly caused by a faulty hood closed switch. A new, slightly taller switch is available to correct this concern.