Toyota Sienna minivan propane tank chirping noise

[Lucky1]

I'll probably post this on the Toyota Sienna forums as well but thought I'd post at my main auto forum also. There's a late model Toyota Sienna minivan in my neighbourhood that is constantly making an alarm like chirping noise. It is converted for accessibility (ie has rampa for wheelchairs, etc). All day, all night. Can hear it with my windows open and on my deck.

Talked to the owner and he says he can't turn off the noise; its a necessary feature for the safety of the onboard propane tanks. Does this make any sense to anyone? Any experience with this kind of safety system?

[billnchristy]

I think you would want to find out who the accessibility company is because I doubt it has anything to do with Toyota and everything to do with them.

[Chihuahua]

propane tanks?

[Lucky1]

Originally Posted by Chihuahua

propane tanks?

Propane gas tank. Vehicle has been converted to run on propane fuel.