Quote:
Originally Posted by ewill3rd  The only way we can program them at the dealership level is to call GM and tell them the VIN and the tire size you installed.
IF, and ONLY IF, it is a GM APPROVED tire size they will give us a VCI number from engineering to download and program into the vehicle.
The EBCM also needs to be updated with the proper tire size.
If the tire size is not an approved size by GM they will pretty much hang up on us. I think they charge us money for a VCI number on the order of $200.
I'd have to check to be sure about that part. |
ewill3rd, that's what I've been talking about for a long time. The problem is that there is a whole raft of stuff being calculated in the computers that has to be accounted for. A VCI number has to be compiled for each and every combination of components. My understanding is that a one-off VCI number is VERY expensive.