You've got a fantastic machine in the Hummer EV, and the good news is that accessing the widespread Tesla Supercharger network is now a reality! Gone are the days when Tesla's rapid chargers were exclusively for their vehicles. With the adoption of the North American Charging Standard (NACS) by GM, and the availability of a proper adapter, you can now enjoy the convenience and speed of Supercharging your Hummer EV.
Let's dive into how you can power up your beast at a Tesla Supercharger.
Step 1: Confirm Compatibility and Get Your Adapter
Before you even think about pulling up to a Supercharger, you need to ensure your Hummer EV is ready and that you have the right equipment. This is arguably the most crucial step.
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| How To Charge Hummer At Tesla Supercharger |
Sub-heading 1.1: Hummer EV and NACS Adoption
The Hummer EV, built on GM's advanced Ultium platform, originally uses the CCS (Combined Charging System) connector for DC fast charging. However, GM has officially adopted the North American Charging Standard (NACS) – also known as SAE J3400 – which is what Tesla Superchargers use. This means your Hummer EV is capable of using the Tesla network, but it won't connect directly without an intermediary.
Sub-heading 1.2: The Essential NACS DC Adapter
To bridge the gap between your Hummer EV's CCS port and the Tesla Supercharger's NACS cable, you'll need a GM-approved NACS DC adapter. It's absolutely vital to use an adapter recommended or sold by GM. Using third-party adapters could potentially damage your vehicle and may even void your warranty.
How to Order Your Adapter:
Through the myGMC Mobile App: This is often the most convenient method. Navigate to the "Settings" section, then "Public Charging," and select "Tesla Supercharger." You'll typically find an option to "Order Adapter" there. You'll need to input your EV's VIN.
GMC Accessories Website: You can also purchase the adapter directly from the official GMC accessories website.
Local GMC Dealer: Your local dealership can assist you with ordering and purchasing the adapter.
What the Adapter Does: The NACS DC adapter is designed to plug into your Hummer EV's existing CCS charge port inlet. The other side of the adapter then allows the NACS DC fast charger cable to plug in.
Step 2: Prepare Your myGMC App and Payment
The Tesla Supercharger network, for non-Tesla vehicles, primarily operates through the Tesla app. However, for GM vehicles, the process is even more integrated, leveraging your myGMC mobile app.
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Sub-heading 2.1: Activating Tesla Supercharger Access in myGMC
GM has streamlined the process by integrating Tesla Supercharger access directly into their vehicle brand apps.
Open the myGMC App: Ensure your myGMC mobile app is updated to the latest version.
Navigate to Public Charging: From your app's home screen, go to the "Settings" section and select "Public Charging."
Activate Tesla Supercharger: In the Public Charging screen, look for the "Tesla Supercharger" option and tap the blue "Activate" text. Then press "start."
Enter Payment Information: Follow the prompts to enter your credit card details and press "Activate" to enroll in GM Tesla Charging. This setup allows for seamless "plug-and-charge" at compatible Superchargers once activated.
Sub-heading 2.2: Finding a Supercharger and Planning Your Route ️
Your myGMC app will be your best friend for locating compatible Superchargers.
Use the Map Tab: Go to the "Map" tab within your myGMC app.
Search for Tesla Stations: Use the map's search bar to find Tesla public charging stations. The app should indicate which stations are open to non-Tesla vehicles.
Check Availability and Pricing: The app will show real-time availability of charging stalls and the pricing per kWh or per minute. Some Superchargers may also have "Magic Dock" adapters built into the station, but for your Hummer EV, you'll likely be using your own GM-approved NACS DC adapter.
Step 3: Arriving and Initiating the Charge ⚡
You've got your adapter, your app is set up, and you've found a Supercharger. Now for the actual charging process!
Sub-heading 3.1: Parking and Connecting the Adapter
Position Your Hummer EV: Tesla Supercharger cables are typically designed for Teslas, which often have their charging ports in the rear driver's side. Your Hummer EV's CCS port is likely in a different location. You might need to park creatively to ensure the cable can comfortably reach your charging port without excessively stretching or blocking other stalls. Be mindful of other vehicles and don't block access.
Connect the NACS DC Adapter to the Supercharger Cable: Take your GM-approved NACS DC adapter. The side designed for the Supercharger cable will connect to the Tesla Supercharger's NACS connector.
Plug the Adapter into Your Hummer EV: Once the Supercharger cable is securely connected to your NACS DC adapter, plug the adapter into your Hummer EV's CCS charge port. Ensure it's firmly seated.
Sub-heading 3.2: Starting the Charging Session via the App
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Select Your Charger in the myGMC App: In the myGMC app's map, select the specific charger number you're connected to. This number is usually visible on the Supercharger stall itself, typically near the base.
Tap "Start Charging": Within a few seconds, charging should begin automatically. The app will display your charging status, including the current charging speed and estimated time to full.
Monitor Progress: Keep an eye on the charging progress through your myGMC app. You'll see the estimated range added and the percentage charged.
Step 4: Ending the Charging Session and Disconnecting
Once your Hummer EV has reached your desired charge level, it's time to disconnect.
Sub-heading 4.1: Stopping the Charge
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Tap "Stop Charging" in the App: In your myGMC app, you'll see a "Stop Charging" button. Tap this to end the session.
Wait for Confirmation: The charger will typically disengage the connection.
Sub-heading 4.2: Disconnecting the Cables
Remove the Adapter and Cable from Your Hummer EV: Carefully unlatch and pull the NACS DC adapter (with the Supercharger cable still attached) out of your Hummer EV's charging port.
Disconnect the Adapter from the Supercharger Cable: Press the button on top of the NACS DC adapter to unlatch it from the Supercharger cable, and then carefully disconnect them.
Return the Supercharger Cable: Place the Supercharger cable back into its designated holder on the Supercharger station.
Store Your Adapter: Safely store your NACS DC adapter in your Hummer EV.
Important Considerations and Tips
Charging Speed: While the Hummer EV can handle high DC fast charging speeds (up to 350 kW on an 800-volt architecture), the actual speed you get at a Supercharger can vary. Factors include the specific Supercharger version (V2, V3, V4), the station's load, your battery's state of charge, and ambient temperature. Tesla's newer V3 and V4 Superchargers are generally the fastest.
Dynamic Pricing: Tesla Superchargers often employ dynamic pricing, meaning the cost per kWh can vary based on the time of day and station demand. Check the myGMC app (or Tesla app) for current pricing before you start charging.
Membership Options: Tesla sometimes offers membership options for non-Tesla EV owners, which can provide a lower per-kWh rate if you plan to use Superchargers frequently. Check for these options within the myGMC or Tesla app.
Cold Weather: Extreme cold can impact charging speeds. The Hummer EV has battery preconditioning features that can help optimize charging in colder temperatures.
App Reliability: While generally reliable, ensure your phone has a good signal at the Supercharger location for seamless app interaction.
Safety: Always follow the instructions provided by GM for your adapter and the Supercharger station. Do not force connections.
10 Related FAQ Questions
How to get a GM-approved NACS DC adapter for my Hummer EV?
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You can order a GM-approved NACS DC adapter through your myGMC mobile app, the official GMC Accessories website, or directly from your local GMC dealership.
How to activate Tesla Supercharger access in the myGMC app?
Open your myGMC app, go to "Settings," then "Public Charging," select "Tesla Supercharger," and follow the prompts to activate access and add your payment information.
How to find a Tesla Supercharger location compatible with my Hummer EV?
Use the "Map" tab in your myGMC mobile app and search for Tesla public charging stations. The app will indicate compatibility and real-time availability.
How to initiate a charging session for my Hummer EV at a Tesla Supercharger?
After connecting your GM-approved NACS DC adapter to the Supercharger cable and then to your Hummer EV, select the specific charger number in your myGMC app and tap "Start Charging."
How to ensure I'm using the correct adapter for my Hummer EV?
Always use the NACS DC adapter that is officially approved and sold by GM; using third-party adapters is strongly discouraged and can void your warranty.
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How to know the charging speed my Hummer EV will get at a Supercharger?
Charging speed depends on the Supercharger version (V2, V3, V4), station load, your Hummer EV's battery state of charge, and ambient temperature; the myGMC app will display the current charging rate.
How to pay for charging at a Tesla Supercharger with my Hummer EV?
Payment is handled seamlessly through the credit card information you've added and activated within your myGMC mobile app.
How to stop a charging session for my Hummer EV at a Supercharger?
Simply tap the "Stop Charging" button within your myGMC mobile app to end the session.
How to disconnect the charging cable and adapter from my Hummer EV after charging?
After stopping the charge in the app, carefully remove the adapter and cable from your Hummer EV's port, then disconnect the adapter from the Supercharger cable by pressing its release button.
How to optimize charging time for my Hummer EV at a Supercharger?
Ensure your battery is at an optimal temperature (Hummer EV has preconditioning) and consider charging when the station isn't heavily utilized, as Superchargers often experience dynamic pricing and potentially slower speeds during peak hours.
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