GMS Pricing info needed

[USCGRetiredJosh]

Can anyone help me get GMS pricing and stackable rebates for a vehicle? My dad's health isn't that great anymore, and he is unable to remember how to look up this info. I want to make sure the dealership is providing me all the correct info.Dealership is saying there can offer me a better deal than GMS pricing. I can PM VIN and zip code and any other info needed.

 

Looking at:

2017 GMC Deanli

 

Thanks

Josh