Yaris2010Mafalda

Hi everyone, I'm experiencing trouble with my 2010 Yaris charcoal canister. The CEL came on a few months ago and the mechanics used the diagnostic tool to determine it was the charcoal canister, code PE045 and 3 others code, that needed replacement. Estimated cost for replacing five parts including charcoal canister, which is the more expensive part, 969$ :( I always owned Toyota's car and this never happened before. I did some little research online for this. Turns out many of Toyota owners have the same problem. What's strange is that this problem ain't exclusive to Yaris, but a multitude of other Toyotas as well: Corollas, Avalons, Scions, Camry... These are reports from other forums. Before complaining to Toyota, I would want to know if many of you had this kind of problem. Thank you in advance for answers and help :) A maybe future ex Toyota lover....