theperfectv

I am going to put a scanner on tomorrow and check it. It has a pretty rough idle now all of the sudden

Has anyone had there check engine light pop on and get a text message at the exact same time. I received this message today. "Diagnostic Alert: Service the emissions system in your 2018 Sierra within 7 days. Txt STOP to cancel."

So i bought a pretty nice 2018 sierra slt premium plus with low miles at a good price last week in michigan. Well after getting it in the air i noticed that it has a lot of rust for an 18. Almost looks like the sand on the roads had sand blasted it. I want to clean everything and get the undercoating done. And possibly spray all the other parts that are not coated by the undercoating. Are there any good sprays to soak this down before pressure washing? Does anyone else have this amount of rust also?

Ahh so that will make this extra challenging.

Sorry if this has been posted before but I could not find this information anywhere on the 2018 eassist. I want to change the jumpseat out with a middle council but from what I understand the lithium batteries are stored under the jump seat. Would the middle council fit over this the same way the jumpseat would?