GM EVs Vehicle Wide Programming - Software Updates

I decided to write this article because many of you have reached out stating that your GM Dealer has been reluctant to perform software updates on your Silverado EV, Sierra EV, Escalade IQ, or other GM Ultium Based EV.

Any newer Ultium Based EV is supposed to have VWP (Vehicle Wide Programming) performed "when its in for service" and this is covered under warranty by GM.

The Problem: The folks who have written to me indicate the dealers push back and tell them things like "there are no updates available" or "I can't find any bulletins" or they advise the customer there is a charge to perform the service.

Why this is happening:  Module updating takes a considerable amount of time (at least several hours) and can be risky if they don't have the proper equipment.  Dealers don't get paid as much for warranty work and so they may be reluctant to do it.  Another explanation may be that the dealer simply doesn't know how the process works with the newer EVs.

The Resolution: 

• You can ask to speak with the tech or the service manager if the service writer is not being helpful. 
• You should reference two GM service bulletins that instruct the dealer to perform the work "when the vehicle is in for service".  24-NA-143 (instructions to perform when in for service) and 24-NA-113 (instructions on how to perform vehicle wide programming)
• You should schedule another service first such as a tire rotation as the dealer may still push back if the vehicle is not already in for another service.
• If the dealer is still pushing back I would suggest you find another EV certified dealer who is more willing to help.

If you don't mind waiting for a while, many of the updates get pushed out OTA but that can take some time and patience when dealing with GM as they don't operate the same way with software updates as a company like Tesla or Rivian.

Were you able to get GM to Update your Ultium Based EV?  What are your thoughts on software updates for GM electric vehicles?