After a lot of searching and comparing I made the purchase.
I checked with my local Chevrolet dealer (what a joke price wise).
Checked GM's website (what a ripoff).
Checked with James Black Cadillac (good deal).
Lastly I found Knapp Chevrolet Buick Motors (great deal and great customer service).
Purchased the GMEPP (Platinum). Pricing varies with the particular vehicle, miles, deductible and how many years you want.
I never used to purchase an extended warranty until my 2014 Chevy Silverado 2500 Duramax 4X4 because of all the associated equipment and electronics. Then purchased my current 2019 Chevy Silverado 1500 4X4 with all the associated equipment and a boatload of electronics. If I ever have an issue with any component, this plan will pay for itself.