A laptop
GM online subscription (or https://www.acdelcotds.com/subscriptions)
Select Interface as J2534 MDI and programming process: Reprogram ECU
Connect J2534 device (GM MDI interface) to vehicle and PC
Turn ignition off
verify vehicle battery fully charged
Turn ignition on, engine off
Connect J2534 device to Data Link Connector
Connect J2534 device to PC
Switch J2534 mdi on and wait for MDI to get ready
After programming erase all DTC of all ECUs
Display and confirm VIN
Select control module, function and type to reflash
–IPC Instrument Cluster