GMC Sierra Denali 1500 2023 Owner's Manual page 323

322 Driving and Operating
After a profile is created, set up for
additional features may become available,
such as Tow/Haul Mode reminder, Trailer
Tire Pressure Monitoring System (TTPMS),
maintenance reminders, or towing assist.
Import a Trailer Profile
Touch Import on the trailer detection pop-up
or touch Import in the Trailering App.
Follow on-screen instructions to import a
profile.
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 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 sounds, the vehicle brake lamps
flash, and all working trailer lamps flash.
It then moves to the next sensor.
Touch Stop to cancel the process.
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.
TTPMS must learn the location of the
installed tire sensors to show correct air
pressure and temperature for each tire. To
set up, use one of the following options or
see a tire or trailer dealer for service. The
learning process must be repeated when the
trailer tires are rotated or replaced.
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 screen.
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.