Reference Information

WARNING: This page is about a different car, the 2023 GMC Hummer EV. However, it is still accessible from the selected car via links, so may be relevant.

Special Tools

USB type C flash drive.
USB 2.0 & above with FAT32 format (USB 3.0 & 3.1 is highly recommended)
Minimum size 16GB (Most USB flash drives larger than 32GB do not support FAT32 format)
EL-52100 Multiple Diagnostic Interface 2 (MDI 2)

For equivalent regional tools, refer to Special Tools .