Charging module, 19.2 kW high-voltage

only in: Police Package; letter O; GM prints no zero form for this part, and K20 in GM's other lists is a control module

O in 2025; S in 2026; GM prints K2O (letter O); K20 is a control module, not this part;

letter O; GM prints no zero form for this part, and K20 in GM's other lists is a control module; 2025–2026: A in RS (included with and only available with ZL5); not offered in LT 1, LT 2

GMC Sierra EV lists print Energy Transfer Pro, 10.2 kW, with 19.2 kW vehicle-to-load capability under this code; 2025: S in 8WT, 2SP, 3SP; A in 5WT, 3LT; not offered in 2WT; 2026: S in 5WT, 8WT, 4LT, 3TR, 2SP, 3SP; A in 3LT, 2TR; not offered in 4WT, 2LT; 2027: S in 5WT, 8WT, 3TR; A in 3LT, 2TR; not offered in 4WT, 2LT; 2025: included and only available with XTK; included and only available with XTF; 2026: included and only available with SW4; 2027: included with XTK; included and only available with SW4