Charging - GMC Hummer EV 2023 Owner's Manual

GMC Hummer EV Owner Manual (GMNA-Localizing-MidEast-16569278) -
2023 - CRC - 1/25/23
252 Driving and Operating
is inactive during DC charging. A utility
interruption will lengthen the vehicle
charge time.
When electrical grid power is completely
blocked, the vehicle will not charge until the
utility interruption has expired. The vehicle
should be left plugged in so that the vehicle
will automatically resume charging.
Changing the charge mode to Charge Now
or performing a delayed charging override
will not disable a utility interruption.
A message will display on the instrument
cluster indicating that a utility interruption
has occurred.
Charging Station Troubleshooting
If the vehicle does not charge after being
plugged in to a residential 240-volt charging
station:
1. Verify that the charge mode is set to
Charge Now.
2. Verify that the charging station circuit
breaker is not tripped.
3. Plug the portable charge cord into the
wall outlet, verify that the indicator light
on the charge cord is solid green, and
connect it to the vehicle. See Charge
Cord Status Indicators in Charge Cord
0 245.
4. If the vehicle charges with the portable
charge cord and a different 240-volt
charging station, such as a public station,
there may be a problem with the
charging station. Contact the charging
station manufacturer for service.
Electrical Requirements for
Battery Charging
The vehicle is designed for compatibility
with most standard vehicle charging
equipment in the region of sale. Check for
charger compatibility before purchasing a
charger
The portable charge cord defaults to
230 volts, and 10 amps or 32 amps,
depending on the charge cord type. Have
the outlet inspected before changing to
10 amps or 32 amps on the Charging Screens.
If 10 amps or 32 amps is selected, a pop-up
will show on the infotainment display to
confirm the change to 10 amps or 32 amps.
See the Active Charging section under

Charging 0 111.

Caution
Do not use portable or stationary backup
generating equipment to charge the
vehicle. This may cause damage to the
vehicle's charging system. Only charge
the vehicle from utility supplied power.
Trailer Towing
General Towing Information
Only use towing equipment that has been
designed for the vehicle. Contact your dealer
or trailering dealer for assistance with
preparing the vehicle to tow a trailer. Read
the entire section before towing a trailer.
To tow a disabled vehicle, see Transporting
a Disabled Vehicle 0 320.
Driving Characteristics and
Towing Tips
Warning
You can lose control when towing a
trailer if the correct equipment is not
used or the vehicle is not driven properly.
For example, if the trailer is too heavy or
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