GMC HUMMER EV 2022 Owner's Manual page 285

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284
Driving and Operating
Accessory/No trailer will select Accessory/No
trailer as the active Trailer Profile and will
dismiss the pop-up.
Create a Trailer Profile
1. Touch Add Trailer on the trailer detection
pop-up or touch + Add Trailer in the
Trailering App.
2. Follow the on-screen instructions to set
up a profile.
3. After a profile is created, set up for
additional trailer features may become
available, such as Tow/Haul Mode
reminder, Trailer Tire Pressure
Monitoring System, maintenance
reminders, or towing assist.
Import a Trailer Profile
1. Touch Import on the trailer detection
pop-up or touch Import in the
Trailering App.
2. Follow the on-screen instructions to
import a profile.
3. After a profile is imported, it can be
selected from the trailer list. The Tow/
Haul Mode reminder, Brake Gain Setting
and Trailer Tire Pressure sensor learning,
if equipped, do not import.
Trailer Feature Setup
Tow/Haul Mode Reminder
To turn the Tow/Haul Mode Reminder
setting on, touch Yes. To turn it off,
touch No.
Trailer Tire Pressure Setup
If the Trailer Tire Pressure Monitoring
System (TTPMS) is detected, touch the Tire
Pressure Monitoring icon to set up tire
pressure monitoring.
The trailer tire pressure sensors can transmit
up to 7 m (23 feet) from the hitch receiver of
the vehicle.
A trailer must be electrically connected to
the vehicle before starting the
sensor-to-vehicle learn process.
After selecting Start from the Learn Sensors
screen, use the Tool Method or the Manual
Method (described below) to learn each tire
sensor, during which the current tire number
will be highlighted. Each sensor has a
maximum of two minutes to learn. After a
sensor is learned, a checkmark appears next
to the tire, the vehicle horn will sound, the
vehicle's brake lamps will flash, and all
working trailer lamps will flash. It then
moves to the next sensor.
The recommended tire pressure must be
entered for the trailer tires. This allows the
vehicle to alert when the tire pressure is
high or low.
Tool Method: A TTPMS activation tool can
be purchased separately to learn the sensor
locations.
Manual Method: Without the tool, the air
pressure can be increased or decreased in
each tire for 10 seconds. Do not exceed the
maximum inflation pressure found on the
tire sidewalls. Make sure to readjust tire
pressure to the recommended level when
the process is complete.
Sensor Learning Steps
To complete the sensor-to-vehicle learn
process:
1. Touch Start on the Learn Sensors screen.
The horn chirps twice and the Learning
Active screen appears on the
infotainment display.
2. Start with the driver side front
trailer tire.
3. Activate the tool near the valve stem or
adjust the air pressure of this tire until
the horn chirps and all working vehicle
and trailer lights flash.

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