EXACT same issue as rickpx14 wrote in this review section. 
Main refrigerator compartment interior LED lights do not turn on unless we open the freezer door. Even then, only half the lights in the main compartment turns on. 
We tried turning off the power for a few minutes and turning back on (as GE tech in the review suggested). Did nothing. 
Can I try anything else? Fridge is 4 years old and it sounds like this quirky issue is actually common among multiple consumers of this refrigerator. Will GE fix this under warranty as a factory defect?