How do I get to the bulb(s) in the Geary selector???

Suggest you have injector balance test done , leaking fuel injectors , maybe .

The bezel around the shifter pops up. Tabs on each side(left and right). pry up with a screw driver. I believe it is a 194 bulb.

If you have other lights, radio,instrument panel. Then the fuse is good. The A/C and the gear selector could have bad bulbs. You have to pop off the bezel and remove the screws to access the A/C. The gear selector, you have to pop off the boot(console type), pull it up, the bulb is on the drivers side.

bulb in console- all dash/indicator lights on same circuit

use a screwdiver (flat) to pop off the plastic plate that houses this bulb.and find a bulb that relaces the other

No bulb replacement for gear selector, gear selector and cluster one part.

a bulb on one side and new light stalk switch

call your local hyundai dealer, ask for "parts" they can get you the bulbs you need.

did you test for power to the bulbs, possibly a bad ground connection for the bulbs, or the selector lever is broken reverse sensor is usually on the trans

I can think of two possibilities. 1) The gear selector needs a slight adjustment 2) the bulb for the gear selector is loose or loosing it's ground