"Brake" warning but things apparently fine

[Wallace White]

Listers -

My 5kcstq has been handling its new job of commuter vehicle fine, except
that the Auto Check has given me the warning triangle for "Brake" twice
now. Both times, I stopped right away and checked the Pentosin and brake
fluid levels--both were fine. The bomb is about two years old and still
holds lots of pumps.

The warning only came on for a few seconds; could it just be something
shaking out on the highway? Still doesn't seem like it to me, though. It
happened twice in two days.

- Wallace
  '87 5kcstq 167k