Hyundai Santa Fe 2011 2nd question: Lights work when buttons pushed, why wont they work when door is opened?

I had the same issue. Took it in and dealer said needed to replace the entire light assembly. When I took it in to replace the assembly, the said a new tech bulletin was out that said all they needed to replace was a circuit card. I had that done and it is working fine now.

I had the same problem on my 2010 Santa Fe. When front door is opened, the rear dome light comes on OK but the front light does not work. Based on comments I saw on the internet, I assumed that the diode in my overhead light asm had blown. So I did the following: 1) Removed the overhead light asm by removing 2 Phillips screws, then pulled asm down from ceiling & unplugged cable. 2) Removed electrical board from overhead light asm by removing 4 Phillips screws and unsnapping 2 black plastic tabs. 3) Soldered another diode right next to the existing one (I did not bother removing the old one). I made sure that diode orientation is the same (i.e.- silver bar is on the same side of both old & new diode) 4) Reattached electrical board to overhead light asm. 5) Plugged cable back in, and replaced the overhead light asm. This fix worked like a champ! Total repair time = 30 minutes. Total cost = $2.02. I bought 10 relatively beefy diodes from Amazon.com, and now I have 9 spares. For the exact diode that I used, go to Amazon.com and search for B009IN1KB8.

Thanks ronnshirl. You provided exactly enough information to allow me to do the same. I removed my diode. It is a 1N4007, 1A 1000V diode. The part you specified is a 10A, 1000V diode. A bit of overkill, but it will certainly do the job! Especiallly considering the 1A diode gave up the ghost. Thanks again