+ and - for transmission does not work on Hyundai Tucson

Average mileage: 104,783 (63,860–170,000)
Drive Trains affected: 2WD, 4WD
2 model years affected: 2005, 2007
5 people reported this problem
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problem details
When I move the shifter on my automatic tramsmission to the right to use the + - there is no response.
2007 Hyundai Tucson - 2WD 80,000 mi,
Tiptronic shifting not working
2005 Hyundai Tucson - 2WD 110,000 mi,
My gear won't downshift to first gear sometimes. But it always fixes itself.