One problem related to blind spot detection has been reported for the 2016 Chevrolet Tahoe. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2016 Chevrolet Tahoe based on all problems reported for the 2016 Tahoe.
Gm has a known problem with the sensors for the side detection system that are placed outside in the rear of the vehicle. Tires splash water and salt directly on the sensors causing them to short out. This short not only causes the side detection to misreport whether a vehicle is in your blind spot, it also manifests itself with lift gate malfunctions and various other messages displayed on the dic like service park assist system or service trailer brake. My Tahoe has had all these issues. To date gm has not recalled my Tahoe or any other gm vehicle with this problem. The dealership quoted me $1,700 for the fix and are having trouble sourcing the new sensors since apparently I am not the only one affected. Howabout your agency looking into this and suggesting to gm to man up on this and cover the repair through a recall and a reimbursement for those who paid out of pocket.