As GM Authority reported previously, General Motors EV owners now have access to Tesla’s Supercharger network, which means more options when it comes to topping off the battery. However, in order to connect, General Motors customers will need to use the automaker’s NACS (North American Charging Standard) adapter, given all General Motors EVs are equipped with the Combined Charging System (CCS) charger type. Critically, the official General Motors NACS adapter is not compatible with Level 1 or Level 2 AC charging stations, including home chargers.
According to General Motors bulletin PIT6353, the NACS adapter is designed exclusively for use with public DC fast chargers, specifically Tesla Superchargers. The adapter is not compatible with Level 1 or Level 2 AC chargers, as the CCS1 charge port found on all current General Motors EVs uses separate pins for AC and DC charging. By contrast, the NACS format uses the same pins for AC and DC, while the General Motors adapter only routes the DC pins.
This applies to a wide range of EVs produced between the 2017 and 2025 model years, including the Cadillac Lyriq, Escalade IQ, Vistiq, Chevy Blazer EV, Equinox EV, Silverado EV, Bolt EV / Bolt EUV, and GMC Hummer EV, among others. Currently, no 2026 model-year General Motors EVs (Vistiq, Lyriq-V, or Escalade IQL) are equipped with a native NACS connector, despite an earlier announcement that GM would switch to NACS for the 2026 model year.
EV owners can purchase the General Motors NACS adapter for $225 via the myChevrolet, myGMC, and myCadillac apps. General Motors recommends securely latching the adapter to the plug before connecting to the vehicle, and reversing the process once charging is complete. The adapter part numbers include PN 85090442, 85836744, and 85778137, none of which support AC charging. Attempting to use these adapters with non-DC chargers may result in several error codes, such as P2E85, P0F71, P0D3F, or P1EE6 for Bolt EVs.
Customers looking for assistance with adapter usage or charger compatibility can contact the General Motors EV Concierge at 1-833-64POWER.
Comments
They still can’t figure it out? Forget EV’s
Life is much simpler when you only have to choose between regular, mid-grade, or premium E10, or E15, or E70, or Ethanol-free. Or diesel – wrong decision there will destroy your engine!
Too darned complicated to just plug the NACS connector into your vehicle with a simple adapter (if needed) and get on with your day. That’s why nobody uses smartphones – charging them is too complicated for most people. /s
There are zero CCS/NACS adapters that work for level 2 charging. Across the industry. They’re two different things for two different purposes: fast charging adapters and slow charging adapters. There is no crossover.
Isn’t it time for the government to issue a standard for a single charging plug?
They did. It is the NACS. The CCS plug is based on the SAE J1772 standard. It worked for over 15 years.
I know why the GM adapter does nit wirk.on Level 2 AC chargers. The Tesla Superchargers only supply DC, so the AC pins are never used or needed.
Easy solution. Don’t install a Tesla charger.
stupid story All of us EV owners know the CCS TO Nacs is a DCFC device. Only ICE folks are to ignorant to understand that. As far a the Govt issuing a standard, we don’t want the feds involved and all manufactures have already adopted NACs as the standard. We just have a lot of cars that were built before this that are CCS. Its not a big deal. Mudman, Level 2 and DCFC are different animals. Most new vehicles will be coming with NACS so Tesla EVSE, (the chargers are in the vehicle not in the device you plug in) but its going to take time.
Exactly. This is much to do about nothing. Pretty much anyone who has an EV or is seriously in the market for one has known this for awhile. And while GM does not make an official adaptor for in-home charging Tesla systems there are a number of great options that are (unofficially) recommended.
Knowing doesn’t mean it’s much to do about nothing. It’s still a pain to charge when you need a suitcase of adapters depending on the type of charger. I’ll never buy an EV until the charging situation is simplified.
It has nothing to do with the adapters. V2 Superchargers do not support the CCS communication protocol. Tesla has a proprietary communication protocol which they developed before there was a CCS standard. V1 and V2 Superchargers use the Tesla protocol. V3 and V4 Superchargers support both the Tesla and the CCS protocol. Teslas built after 2022 support both protocols, earlier Teslas use the Tesla protocol only unless they’ve had a charge port upgrade. The bottom line is that CCS cars and NACS cars can only use V3 and V4 Superchargers. Likewise only newer Teslas can use CCS chargers like EA. Older Teslas only work on the Supercharger network.
It’s just an american thing (maybe all of Nth America). The rest of the world use CCS2 (even Tesla) except older Japanese cars with CHAdeMO.
That will come as a HUGE surprise to Chinese EV drivers who have been using GB/T all these years. Good thing you Europeans are around to set them straight!
I have an adapter I got from lectron that lets me use Tesla destination (AC) chargers.
I got it over 3 years ago, mainly for using at hotels that only have Tesla chargers.
They overcomplicate what should be a simple thing. Plugging in an EV should not require multiple types of connectors, chargers and adapters.
Just another reason why the NACS is so superior to CCS
Glad everyone in NA agreed to move to the NACS system.
$225 for an adapter that cost less than $5 to manufacture. GM loves their stupid EV buyers don’t they!