Originally Posted by
TacomaSailor
Everything is A-OK now. When I do future stem angle adjustments I'll be sure to check that the stem is still above the steerer.
Great and glad all is well.. As you saw from the first couple of replies, there are two quick fixes to most "I can't adjust my threadless headset" questions;
1. The stem bolts weren't loosened
2. The steerer sticks up above the top of the stem or above the top spacer.
Almost always it's one of these problems.