uplander 2006 gas cap message
 

I have a 2006 uplander. The gas cap message keeps coming up. I already changed the gas cap and put some additives to the gas tank. Any idea why I keep getting this message?

Have you installed an OE gas cap?

Might be the wrong type of gas cap also might be a leak in the system or a faulty signal. I'd check 1 more gas cap get 1 from the dealer and if that doesn't fix it you defenatly got something eles wrong and need to get it diagnosed.

Thanks, was the eva. canister