If you need to replace a burnt out brake, reverse, turn signal or rear
side marker light bulb in your 6th generation (2011, 2012 and 2013)
Hyundai Sonata, check out my guide to the procedure at the link below.
The steps should be similar for other similar Hyundai or Kia vehicles
such as the Elantra, Accent, Optima and Forte.
Here's the link -
http://www.paulstravelpictures.com/Hyundai-Sonata-Tail-Light-Bulbs-Replacement-Guide/
I hope someone finds it to be useful.
Cheers,
Paul