Air-conditioning on 2004 Toyota Prius

When I turn on my a/c it says check air-condition connection on display. Now there is NO cold air at all.

2 answers 1 comment
my display said the same for several days. Took it to the dealer. Now the entire display is dead. Dealer says it will cost $4800 to replace computer.
What? $4800 for a computer? Sounds like you went to a "stealership". Honestly, find a different dealer. Did they give you a written estimate?
Possible leak, or something else. Get it checked by a reputable dealer.