See also:

O/D OFF Indicator (Automatic Transaxle only)
When the overdrive switch is turned on, the overdrive off indicator will go out. This amber indicator will be illuminated when the overdrive switch is turned off. ...

Check spark plugs and ignition system
Inspect your spark plugs as described in section 7 and replace them if necessary. Also check all ignition wiring and components to be sure they are not cracked, worn or damaged in any way. ...

CHASSIS REFINEMENT FOR 3.8 AND 4.6 MODELS
Always seeking to enhance the Hyundai Genesis driving experience, Hyundai engineers have made further refinements to the 3.8 and 4.6 model suspension damping calibrations. These precise adjustment ...