The 2025 GMC Hummer EV Pickup and 2025 GMC Hummer EV SUV will continue to use the Combined Charging System Combo 1 (CCS1) and the five-pin SAE J1772 charger connectors, rather than the NACS charging connector type. GM announced last year that it would equip new GM EVs with the NACS charging connector type in 2025, indicating the 2025 calendar year, rather than the 2025 model year. GM EV owners still do not have access to the Tesla Supercharger network.
The NACS charging connector was originally developed by Tesla and is characterized by its compact design, offering both AC and DC quick-charge charging capabilities. While GM electric vehicles like the GMC Hummer EV currently equip a CCS charger, NACS is set to become the universal standard among major automakers. Like GM, Ford has signaled that it too will adopt the NACS charge type with new EV models, signaling a significant industry pivot towards this technology. The NACS supports up to 1 MW of DC charging.
GM EV owners are poised to benefit from broader network compatibility in the near future. In addition to announcing plans to switch to NACS charging, GM also aim to provide GM EV owners with access to the Tesla Supercharger network, which uses NACS connectors. That said, the timeline for opening up Supercharger access to GM EV owners remains uncertain, with initial estimates originally projecting an early 2024 rollout. Vehicles that incorporate CCS and SAE J1772 charge types, like the 2025 GMC Hummer EV, will require an adapter to connect to an NACS charger.
GM’s move to open up access to the Tesla Supercharger network is part of a broader initiative that already includes 134,000 EV chargers available through Ultium Charge 360. GM has secured multiple agreements with third-party charging networks to ensure comprehensive coverage.
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Comments
Uh ok.
The 5 or 6 people who own one of these and actually drive it are gonna be gutted.
Oh my ..
I m a Hummer fan (I own a custom 2-door H2) and manager to place a pre-order for the Edition 1 EV SUV.
Then after 2.5 years, by Autumn 2023, the dealer demanded $30K ransom to release the vehicle to me, which I declined. Then they lowered it to $20K “out of curtacy”, which was still offending: why the hell, it was _me_ who worked to get this one of first orders,not them!
I still like th vehicle and was thinking about buying it next year, exactly for smooth integration with Tesla Superchargers, since it’s the only network which is always up and I love charging Tesla there without any problem and via integrated infotainment system and navigator. Considering over 200kwh battery, smooth charging is a really important thing for the Hummer EV.
I’ve even contacted GMC support earlier this year, they promised that an adapter was coming out “in the near future”, but no certainty about integrated NACS port.
I also liked the Earth Cruiser’s RV concept and was thinking about buying it (if they could keep total price under about $160K). But then the company went bankrupt.
There also quite a few posts in communities about dead vehicles with dealers being unable to fix them.
And now this… No smooth charging even for the next year Hummer EV?
It’s not easy nowadays to be a Hummer fan… %)
I know of Six (Might be 8) that are waiting for NACS integration because they each chose a Non Tesla vehicle.
GM and other manufacturers cannot add the NACS portal quick enough.
I find it interesting that after all the collaboration for a North American standard was to be the CCS1/J1772 jack, that all the manufacturers dropped them at the chance to get a Tesla Jack.
Now of course, Tesla apparently has decided to at a minimum downsize their Charging Presence. I say it that way since all the other STUPDENDOUS releases like the SEMI, The second version ROADSTER, the $25,000 MODEL 2, etc, have had underwhelming releases – and of course the Rusting (after 2 weeks) CYBERTRUCK which is 50% more expensive than promised and goes 1/2 as far.
At the Buffalo ‘Gigafactory’ – where there is 1/10 the employment originally envisioned – where they’ve given up on solar roofs and now only making battery chargers (specifically the version 3 models) layoffs have started.
I think they were depending on Future Tesla Standards to allow 800 volt charging as GM premium models are capable of. Doesn’t look like anything Tesla nowadays will support that, so I’m buying the cheap low voltage models since there are no really low cost fast chargers around me that support 800 volts, nor seems likely in the near future.
But other manufacturers slowing down putting all their eggs in the Tesla basket seems to me like a rare intelligent decision.
The Tesla charger (NACS) is a simpler design that uses the same terminals for both DC and AC charging (as opposed to the older setup that had separate terminals). However, this systems has flaws as pointed out by Technology Connections YouTube video. There is a system that Teslas have that determine whether the car is receiving DC or AC charging and will adjust the cars charging system depending on the charger type. If that system fails, the car can’t switchover and bypass the bridge rectifier properly. So attention needs to be given to make sure this works properly.
Something tells me that there will be an opportunity to offer the conversion service to change the charge ports to NACS on older out of warranty versions of these.
In addition to the bad news the Tesla charging network isn’t available nor might not ever be available, I learned the Hummer doesn’t support V2H, vehicle to home, energy transfer: MY’26 is the earliest it might be offered. GM made the announcement spring ‘23, all 2024 Hummer’s would support V2H. No official press release resending the year old press release for V2H. I discovered this via a conversation with GM Energy trying to set my home up for the Hummer arriving soon. Not so sure about this purchase.
Well I wouldn’t use that super expensive battery regularly just as a charge holder for home… but if I did need to charge home from a vehicle, the Hummer indeed would be the best! And it would be nice to have it as a kinda reserve power source in case of a blackout (considering if a gas-powered car is nearby, just in case😄)
I want one, but was waiting to buy until after they implemented the new ports. If they never do I guess I’ll never get one.
Fine with me, the CCS charging network suck(ed), but that can be improved with time and has.
The physical limitations of NACS plug connector can’t.
I’ll take the CCS plug for my future hummer and use a NACS adapter. Thanks.