As i was driving home tonight, the ABS, TC and downhill came on . does anyone know what could have caused this, and what the next step is.

Any help and or suggestions, would be greatly appreciated

 

Search for the 3 Amigos. This has been covered about a thousand times now since it's so common.

 

does anyone know if I need to bring it to the dealer to have the codes read, or a local LR shop. also, can i still drive it without causing further damange.

 

I think it has to be the dealer, but I could be wrong.

And you're not going to damage anything. You're just not going to have any ABS, Traction Control, or HDC.

Don't let the dealer bully you either.

 

As AK mentioned, do some of your own work and do a search, this is so common place.
No, you don't have to or want to take it to a dealer.
Now go read and when you have some specific questions get back to us so we don't have to do everything for you.