Did some warranty research. The sections below in quotations are copied and pasted from the manufacturer's warranty statements.
From years 6-12, Sub Zero's warranty is limited, and "covers all parts that prove to be defective in materials or workmanship in the sealed system (parts only). The sealed system consists of the compressor, condenser, evaporator, drier and all connecting tubing."
Kitchen Aid's limited warranty for years 6-10 is similar to Sub-Zero's sealed system limited warranty..."covers all parts that prove to be defective in materials or workmanship in the sealed system (parts only). The sealed system consists of the compressor, condenser, evaporator, drier and all connecting tubing."
Jenn-Air's limited sealed system warranty is for years 2-5.
LG's warranty for years 2-4 covers only the compressor.
I appreciate the discussion. I have no dog in this hunt. I'm only looking for a good, reliable fridge. I do believe it's beneficial to discuss facts and avoid generalities, so I posted the details as I read them from the manufacturer's warranty statements.