- 2025–2027 Factory-verified
letter O as every GM list prints it; GM prints K20 as a different part (electronic control module)
Also documented for ChevroletGMC
Documented applications
- 2023, 2025–2027 Factory-verified
letter O: GM prints K2O and no K20 charging module (K20 is the electronic control module in other lists); the 2023 list adds 120V/15A to 240V/100A charging; 2023: AWD (1SD): not available; RWD (1SE): S; 2025–2027: Premium Luxury (1SD), Signature Luxury (1SE), Premium Sport (1SJ), Signature Sport (1SK): O; 2026–2027: LYRIQ-V Premium (1SM): S
- 2025–2027 Factory-verified
the lists print the code with a letter O (K2O); K20 in GM's other lists is a different part (control module)
- 2026–2027 Factory-verified
Premium Luxury, Platinum: S; Luxury, Sport: O; printed with the letter O; K20 in GM's other lists is a different part (control module)
This page aggregates every documented appearance of K2O in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.