I have tried numerous times contacting Delphi and GMC about this, wanting another. I have owned 6 of these trucks, in fact still driving a 2005 the longest I have ever owned a truck. I love it still in love with it. Even contacted Delphi to see if they made a aftermarket for it. Gmc has the rights to it only and will not sell it. They said they didn't sell enough to continue. hope this helps.

Why did they stop? i would love it on a crew cab one

Does GM still offer this? I haven't heard about in awhile? Does it work good? any problems?

I got one of these and it turns great going forward but not as good in reverse but butter than normal

I wish I had that on my sierra!

i like those trucks, i dont know why other companys dont adapt this system