Electric Vehicles (EVs) feature a number of electronic control modules that may require software updates. These updates are important to not only resolve operating issues, but also to enhance vehicle functionality.
GM recommends that Vehicle-Wide Programming be used to perform updates and confirm all modules are updated when 2022-2024 HUMMER EV; 2023 Colorado, Canyon; 2023-2025 LYRIQ; 2024 Blazer EV, Equinox EV, XT4; 2024-2025 Silverado EV, Sierra EV; and 2025 Tahoe, Suburban and Yukon models visit a dealership for any service (including service performed under the New Vehicle Warranty or regular maintenance). (Fig. 8)
In addition, for these EV models that are in dealership inventory, one software update is allowed prior to sale and should be completed close to delivery to the customer.
Fig. 8
Programming Tips
Vehicle Wide Programming (VWP) is a new process to update software on some GM vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to programming affected modules (with some exceptions). As opposed to programming modules individually, VWP allows technicians to update all modules to their latest version in parallel, reducing overall programming time.
To begin a VWP event, select the blue Start Vehicle Wide Programming button on the right side of the SPS 2 screen. (Fig. 9) If unable to select the button, verify the wired MDI 2 connection and that there are not any wireless dongles in the computer.
Fig. 9
TIP: Vehicle-Wide Programming will only work with a wired MDI 2 connection. It is also necessary to remove any wireless dongles from the computer being used as these will not allow Vehicle-Wide Programming to be selectable. If Vehicle-Wide Programming is not selectable with a wired MDI 2, confirm it shows disconnected in SPS 2 and then (if needed) exit out of SPS 2 and log in again.
On the SPS 2 screen, only the control modules with a green car icon are supported by VWP. All other control modules may need to be programmed individually as previously done.
After identifying the modules to program, an SPS 3 page will open and VWP will begin. Once complete, the Vehicle-Wide Programming Summary report will indicate any other modules needing separate programming as well as any failures. If a failed programming event occurs, VWP should be repeated one time prior to using SPS 2 to program the affected module. A separate warranty claim code will be displayed for modules that are programmed individually using SPS 2.
Be sure to record the warranty claim code provided on the Warranty Claim Code screen.
Connection Errors
If a VCS Call Failed error or Techline Connect Service Unavailable error is received, there may be a Techline Connect connection concern. (Fig. 10) It’s recommended to exit from Techline Connect completely and try once more. If the failure occurs again, reboot the computer.
Fig. 10
Refer to Bulletin #24-NA-113 for additional information on programming. Refer to Bulletin #24-NA-132 for more details on warranty claim submissions.
– Thanks to David Rase
