Make sure you check all the obvious stuff, engine oil, coolant level and such. Anything you can check. (Not that those things necessairly have to do with some of the indications on your dash but..) Also, check your fuses to see if one or more have blown controlling those systems. If you discover a fuse(s) blown get a couple of extras. If you replace one and all is well, then good. If a fuse goes a second time, get to the dealer to find the source of the trouble. Do not just put a bigger fuse in. A fuse is kind of a relief valve. You WANT it to blow before wires melt or something burns up.
After that, yes, you will probably need to visit a dealer.