GMC HUMMER EV 2023 Owner's Manual page 287

286 Driving and Operating
Guest Trailer Status View
If the Guest Trailer Profile is active, the
Status view shows:
Lights
Cameras
Checklist
Scroll right or left to see more options. The
Trailer Status view displays mileage
information. Touch to edit, and follow the
on-screen prompts. Mileage will reset after
the trailer disconnects.
Accessory/No Trailer Status View
If the Accessory/No Trailer profile is active,
trailer status information is not available.
Trailers View
There can be up to five Custom Trailer
Profiles on the vehicle.
The Custom Trailer Profiles and Guest Trailer
are in order of the most frequently used.
The Accessory/No Trailer profile is shown
below the Custom Trailer Profiles and Guest
Trailer Profile.
All personalization features are based on the
settings for each driver in vehicle
personalization. The list of Trailer Profiles is
based on vehicle personalization settings.
Guest Trailer
If the Guest Trailer Profile is the active
Trailer Profile, trailer detection, lights/
connections status, theft, and the Tow/Haul
reminder alerts can be sent. The system will
not track total mileage, but the system will
track trip mileage if the Guest Trailer Profile
is active. The Trailer Tire Pressure
Monitoring System or maintenance
reminders cannot be set up for a Guest
Trailer Profile. The Guest Trailer Profile
cannot be edited.
Touch to learn more about the Guest
Trailer option.
Accessory/No Trailer
If the Accessory/No Trailer Profile is active,
alerts will not be sent and the system will
not track mileage. The Trailer Tire Pressure
Monitoring System or maintenance
reminders cannot be set up for the
Accessory/No Trailer Profile. The Accessory/
No Trailer profile cannot be edited.
No Trailer Connected
When there is no trailer connected, Trailer
Profiles cannot be activated but most
options can be edited.
Trailer Brake Gain Memory
The system can store the brake gain setting
of a Trailer Profile or a Guest Trailer Profile.
When a Trailer Profile or Guest Trailer Profile
is selected, and a brake gain setting is set
for that Trailer Profile, a quick notice will
appear to indicate that the system has
recalled that profile's brake gain setting.
If a Trailer Profile is already active and the
brake gain setting had been set for that
Trailer Profile, the quick notice will trigger
whenever the vehicle is turned on.
If there was an error in setting the brake
gain for a Trailer Profile, there will be a
notification. This pop-up will not appear if
the Guest Trailer Profile is active or if there
is no trailer connected.
Trailer brake gain should be set for a specific
trailering condition and must be adjusted
anytime vehicle loading, trailer loading,
or road surface conditions change.