I just bought this vehicle 2 days ago and it is having a few issues I need some help with. First issue is the orange C/D LOCK thing keeps blinking at me. Second issue is, when I push on the gas to go it vibrates ALOT, it stops when I let off the gas and I have to find a sweet spot in order to gain speed without the vibration. Can someone please please help.

 

Let's try to address the issues in reverse order...
Vibration - Do you have Check Engine light on? If not, does CEL come on when you first turn on ignition? At any rate, vibration could be coming from the engine (severe misfire - thus CEL) or transmission. If all engine stuff checks out OK, then onto transmission. Does it vibration happen in Drive, Neutral, Park or in all gears? Do you have to be moving? Moving vibration can be from wheels and suspension.

C/D Lock light - this is an indicator of a problem with 4WD engagement system. Many possible suspects here. All the way from simply a bad sensor, to gears not engaging in front differential or in the transfer case (mechanical issues). Check following forum thread for how to pull Transfer Case Error Codes. Then you'll at least have an idea in which direction you need to go:
https://mitsubishiforum.com/forum/mi...-issues-48348/