Automatic Transmission Gear Indicator problems of the 2019 GMC Terrain

*service trans, check engine, stabilitrak, gas light, would not come out of 1st gear, stalled, started back up and jerked on the way to dealership, locks were flickering, lights would not light up for the prndl, shift to park message on, and vehicle would not start back up when pulled into service drive. *would not shift out of 1st gear while in traffic, vehicle stalled in traffic, vehicle jerked whi9le driving. *confirmed by lafontaine of ann arbor, mi *vehicle inspected by lafontaine of ann arbor, mi service trans, check engine, stabilitrak, gas light, would not come out of 1st gear, stalled, started back up and jerked on the way to dealership, locks were flickering, lights would not light up for the prndl, shift to park message on, and vehicle would not start back up when pulled into service drive. Tac case # 9-6556499036. Tech 24694 worked with field engineer and checked wiring, terminals, and connectors at high speed comm modules and found all passed, replaced bcm and still had concern. Tech 1235 bypassed modules and test drover to eliminate diff control module, ebcm and when ebcm was bypassed concern never returned osyn9761769 tech 56653 completed bcm replacement and programming, wire, terminals and connector checks with engineer. Tech 1235 replaced ebcm assembly, op code 2410330 completed diag by bypassing modules and completed bleeding brakes. Tech 1235 total repair 3. 9. Tech 56553 performed bcm replacement. 2. 9 base time, 4. 8 olh. Repairs approved per dma approval / pet sheet. Test drove vehicle 139 miles without a concern.