Obviously you're uninformed. The canary is for detecting carbon monoxide. The Prius is a PZEV. There is no need to keep a Canary around if you drive a Prius. In fact, the exhaust of the Prius is so clean, you should drive it around on smoggy days in So. Cal. to help scrub the dirty air.An04Prius said:So come on folks, think twice about getting rid of your Canary just because you have a Prius to love.