One problem related to transmission solenoid has been reported for the 1999 Hyundai Accent. The most recently reported issues are listed below.
I noticed when I got my car that is did not have good acceleration, but I figured that it was just because it only had 85 horse power it is a 99 Hyundai Accent. It also hitched when you would go to step on the gas. As time went on it worsened. Then one day without any warning I went to back up and I heard a huge thunking noise. I had lost reverse in my transmission and it did not shift well into first or second would not shift into 3rd or over drive. I then looked up to see if there were any recalls on my transmission and I found out that there were starting 20 days after mine was manufactured. I would like proof that they were using different solenoid valves when 20 days before the recall started because I think that it was a manufacturing defect not operators. The car only has 110736 miles on it.