[pyrchaos]

I was wondering  if as a pixie I get locked in a cage can I use vanish to poof away and reappear outside the cage?

[TheNarrator]

Vanish causes your corpse to disappear if you die. It isn't something that you can do deliberately. Not unless you're suicidal.

NEW CRITTER WEAKNESS

Vanish
When a critter would die from any cause, be it
old age or the detonation of a nuclear weapon, it
vanishes from this world, leaving no trace. This
disappearance can be captured on film, video, or
trideo cameras with ease, but there is no way known
to stop or prevent it—even the critter itself seems
powerless to remain. Researchers debate exactly
where the critters go; many suggest they transition
to some metaplane where they cannot die. Naturally,
no resuscitation, autopsy, or cybermantic procedure
is viable on the critter without a body to work with.

[pyrchaos]

There is also the critter power vanish that let's you do it anytime you want.     

Edit; book running wild page 215

[TheNarrator]

Oh, I see. You mean "Vanishing", which is a different power that pixies don't have.

[pyrchaos]

Oh wow thank you I use the chummer program and it game the pixie the power not the weakness I need to correct that

[Captain Karzak]

Yeah, to clarify in case you or your GM go digging any further:

Runner's Companion p.84 actually lists Pixies as having Vanishing rather than Vanish in the weaknesses entry.

Vanishing is found in Running Wild and is a power, not a weakness.

There is a weakness statted out in the Runner's Campanion called Vanish (RC, 85). Vanish does exactly what TheNarrator has been talking about.

Chummer is technically not wrong, it gave you exactly what the Runner's Companion to told it to give you. But it's extremely likely that this is just a case of sloppy editing in the RC, and the authors wrote Vanishing instead of Vanish in the Pixie entry on p 84 simply by mistake.