Compatibility answer
Can a 2026 GMC Sierra EV use a NACS / J3400 Level 2?
Compatible — Adapter Required
Quick answer
Compatible — Adapter Required
Vehicle connector
J1772
Charger connector
NACS / J3400
Compatibility summary
Works at compatible NACS Level 2 equipment with the approved GM AC adapter.
| Charging type | AC Level 2 |
|---|---|
| Vehicle maximum | DC limit not verified / AC limit not verified |
| Documented on this configuration | Not verified |
| Adapter | GM NACS Level 2 Adapter |
| Verification | Verified |
Which adapter do I need?
AC adapter
GM NACS Level 2 Adapter
GM-approved NACS-to-J1772 AC adapter for the listed CCS1/J1772 GM EVs.
NACS / J3400 → J1772OEM approval: Approved by Chevrolet, GMC
Adapter rating: 80 A / 277 V
Adapter rating: up to 19.2 kW
- AC Level 1/2 only; never use this AC adapter for DC fast charging.
- Confirm vehicle fitment and charging-session requirements in the Chevrolet or GMC app.
Software / network requirements
For home or public NACS Level 2 equipment, confirm the charger’s configuration and vehicle app requirements.
Important limitations
- AC adapter only; do not substitute a DC adapter.
- Actual access and charging speed depend on station configuration, vehicle state, and current network policy.
Sources
GMC GM NACS DC Adapter fitmentGMC / GM · manufacturer
↗GMC NACS Level 2 Adapter fitmentGMC / GM · manufacturer
↗GMC EV charging overviewGMC · manufacturer
↗Last verified 2026-09-11 · Confirm current manufacturer and network information before use.