Honestly, it is on the passenger side. What I have seen is because of the length of the drain, the water seems to drip where it wants. They had issues a few years before your vehicle where the grommet would leak and the water would soak the carpet. Ugh!
Here are the directions for replacement of the hose. Very vague.
2017 GMC Truck Canyon 4WD L4-2.8L DSL Turbo
Air Conditioning Evaporator Module Drain Hose Replacement
Vehicle Heating and Air Conditioning Evaporator Drain Tube Service and Repair Removal and Replacement Air Conditioning Evaporator Module Drain Hose Replacement
AIR CONDITIONING EVAPORATOR MODULE DRAIN HOSE REPLACEMENT
Document ID: 3767678
See pic 1
Call out Component Name
Caution: Refer to HVAC Module Drain Tube Caution.
Front Floor Console Extension Panel Replacement
1 Air Conditioning Evaporator and Blower Module Case Drain Hose
Saturday, May 30th, 2020 AT 9:58 PM