A recently updated GM technical service notice lists the 2011–2024 Cadillac Escalade

 luxury SUV and a number of Chevy and GMC trucks as having a problem with a wax 

coating that rips off the frame when applied incorrectly.

The Cadillac Escalade's frame will become exposed to rust and corrosion if the wax coating peels off, 

exposing the bare metal to elements like salt, water, and other car and road pollutants 

 impacts of the weather. The pictures in the post demonstrate how this issue can arise on a number