Some 2024 Silverado EV, HUMMER EV and HUMMER EV SUV models that have just arrived at the dealership may not charge initially when the vehicle is connected to a Level 1 charger, Level 2 charger or DC Fast Charger. (Fig. 3)
Fig. 3
These EVs have a Charging Inhibit Latch built into the software as part of the manufacturing process.
In order to charge the vehicles once they arrive at the dealership, ensure that Transport Mode is disabled and then drive the vehicle for 5 miles.
Transport Mode can be disabled on HUMMER EV models by activating the hazard flashers with the vehicle powered on, and then pressing and holding the power mode switch for more than 15 seconds.
Use GDS 2 to disable Transport Mode on the Silverado EV, which features a Passive Power Mode. Go to Module Diagnostics/Body Control Module/Power Mode/Transport Mode and select the Disable button at the bottom of the screen. (Fig. 4)
Fig. 4
If the vehicle does not change after being driven for 5 miles, follow the diagnostic procedures in the appropriate Service Information.
For additional information, refer to #PIP5951.
– Thanks to John Riker
