My "03 Elantra has several burnt out bulbs on the right side of dash: hazard light switch, radio channel buttons and HVAC control. What are the sizes of the bulbs? I went to Autozone today, but they didn't know.
I don't know the size, but for the HVAC try this. http://www.ebay.com/itm/DashBulb-Ki...r_Truck_Parts_Accessories&hash=item56697b9917 I purchased replacement bulbs from them on ebay but mine came with the green covers. I took them off and put them in. They make the HVAC brighter, that's the way I like it. If you don't want that, you can use your existing green covers on the new bulbs. And these bulbs are very small. Much smaller than they look.
As far as the dash, I don't know. Some of my bulbs went out but I installed a white face gauge. So I replaced all four large bulbs which light up the needles and odometer. That combined with the white face gauges, man, it looks freaking awesome. I hated the old dull green gauges. These are the white face gauges from the seller on ebay I bought from. http://www.ebay.com/itm/NEW-01-02-0...r_Truck_Parts_Accessories&hash=item43bf00267f If you don't have them, I would consider it. If you have the stock gauges it is a huge step up and not too expensive either.