GM-approved charging adapters allow electric vehicles, including 2017-2023 Bolt; 2022-2026 HUMMER EVs; 2023-2026 LYRIQ, BrightDrop; 2024-2026 Blazer EV, Equinox EV, Silverado EV, Sierra EV; 2025-2026 OPTIQ, CELESTIQ, ESCALADE IQ/IQL; and 2026 VISTIQ models, to charge on a charging standard that differs from that which the vehicle is built, such as charging a LYRIQ with a native CCS1 charging port at a Tesla Supercharger that uses the NACS system.
The North American Charging Standard (NACS/Tesla) (Fig. 12) and the J1772/Combined Charging System 1 (CCS1) (Fig. 13) are the two charging standards with available GM-approved charging adapters.
Fig. 12
Fig. 13
TIP: Not all adapters, vehicles and chargers are compatible with each other. An adapter may physically connect the vehicle and the charger, but power transfer may not be feasible.
NACS or CCS1
The NACS charging standard combines both alternating current (AC) and direct current (DC) on one set of terminals. The J1772/CCS1 charging standard employs separate terminals for both AC and DC charging. Checking the terminals is a quick visual method to determine the purpose of any given adapter. (Fig. 14) Attempting to use an adapter improperly may set several DTCs in the vehicle.
Fig. 14
For diagnosis of a GM OEM charge cord set, refer to Charge Cord Malfunction in the appropriate Service Information.
Charging Adapters for Other Uses
In addition to EV charging adapters, charge receptacle accessories are available to allow vehicle-to-load (V2L), vehicle-to-vehicle (V2V) and vehicle-to-home (V2H) charging in compatible vehicle applications. Go to to gmenergy.gm.com for information regarding additional charging options.
Here’s a quick look at the available GM charging adapters.
GM NACS DC Adapter
- CCS1 vehicle to NACS DC charger (Fig. 15)
- For public charging at specified Tesla Superchargers
- Not for use with NACS Level 1/Level 2 AC “home” chargers. DTCs P1EE6, or P0D3F, P2E85 and P0F71 (P0D3D-11, P0E8B-11 and P0F70-11) may set if connected in this manner.
Fig. 15
GM NACS Level 2 Adapter
- J1772 vehicle to NACS charger (Fig. 16)
- For charging at Level 1/Level 2 “home” chargers
- Set Level 2 charger setting to “compatibility mode.”
Fig. 16
GM J1772 AC Adapter
- NACS vehicle to J1772 charger (Fig. 17)
- For charging vehicles with a J1772 charger
Fig. 17
GM CCS1 DC Adapter
- NACS vehicle to CCS1 DC charger (Fig. 18)
- For charging vehicles with a CCS1 DC charger
Fig. 18
GM Powershift AC Adapter
- NACS vehicle to CCS1 charger (Fig. 19)
- For AC charging with bi-directional chargers like the GM Energy Powershift Charger
Fig. 19
GM customers with questions on adapter usage and EV charging should contact EV Concierge (1-833-64POWER).
For additional information, refer to Bulletin #25-NA-368.
– Thanks to Kurtis Hoezee
