My Hyundai dealer tells me this is normal, but I was wondering what
some other Hyundai owners think. My Sonata never seems to downshift
into 2nd gear, It will drop right from 3rd into 1st. Makes it kind of
sluggish when I'm in 3rd and should be in 2nd.

For example, when I pull up to a red light, and I'm going about 5- mph
and the light changes, I'm still in 3rd gear, and if I'm on a hill,I
have no power. To prove my point, I put the transmission into
Shiftronic (or whatever it's called) and I can actually watch it
downshift. from 4th, into 3rd, VERY rarely into 2nd, then into 1st.
But 99% of the time, it goes from 3rd, and never into 2nd, and drops
right into 1st.

Could some other Sonata owners let me know if their Sonata does the
same, or does it shift like a normal transmission should?

I just spent $451 on my 30,000 mile checkup. Had a bad speed sensor,
or something, but that didn't correct the problem.