Hello friend I have a big problem with my 2023 Chevy truck, my truck has been stolen and a few months later I managed to recover it, when my truck was stolen I sent an alert through OnStar to deactivate it, but now my truck does not work, I already spoke to the OnStar company and deactivate the alert but I still have an immobilizer message,  I have even programmed 2 new keys with MDI2 OEM and I still have the same immobilizer problem, can you help me?

Reflash all necessary modules. OnStar should be sent another files.

when they active the onstar signial blocks the BCM.... i try several times to reflash the bcm and do not work....so i replace the Onstar,  BCM and the Steering wheel lock and a new 2 keys

 

i really dont know wy the Steering wheel module get lock after i replace the new bcm i did the inmo relearn but all the time i get the same problem security code not match. what  i did replace the 3 mocules and no errors

 

if you plug a new BCM whit the same onstar  thi one get lock at the moment you open the switch..