Why does UITableViewCell remain highlighted?

In your didSelectRowAtIndexPath you need to call deselectRowAtIndexPath to deselect the cell.

So whatever else you are doing in didSelectRowAtIndexPath you just have it call deselectRowAtIndexPath as well.

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
 // Do some stuff when the row is selected
 [tableView deselectRowAtIndexPath:indexPath animated:YES];
}