2023 CHEVROLET SUBURBAN trailer

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 5/16/22
314 Driving and Operating
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 and fuel economy,
but the system will track trip mileage and
fuel economy 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
4to 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 and fuel economy. 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.
Editing a Trailer Profile
Touch the trailer profile icon/name in the
Status View to access the Trailer
Profile view:
.Trailer Name
.Total Mileage
.Average Fuel Economy
.Set as Default Trailer
.GCW Alert
.Tow/Haul Mode Reminder Alert
.Theft Alert
.Maintenance Alert
.Delete/Remove Trailer

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 5/16/22
Driving and Operating 315
Trailer Name
Touch to edit the Trailer Profile’s name. Use
at least one character and no spaces.
Total Mileage
Touch to edit the Trailer Profile’s mileage.
Touch Reset to reset trailer mileage to zero,
or enter a new value and touch Save.
Effect on Maintenance Reminders
If the mileage is reset or changed, and
mileage has already accumulated, any
maintenance reminders that have been set
up will be adjusted accordingly.
Average Fuel Economy
Touch to reset the average fuel economy for
the Trailer Profile. Touch Reset to reset fuel
economy.
Delete/Remove Trailer
Touch to remove the Trailer Profile and all
of its settings.
On the pop-up, touch Remove to remove the
Trailer Profile from the vehicle. Touch Cancel
to dismiss the pop-up and return to the
previous view.
Remove will be displayed if there is a
connected OnStar plan active with the
vehicle. Removing a trailer profile willremove the profile from the vehicle but the
profile will still be associated with the user
account. However, if there is not a
connected OnStar plan, then the remove
button will read DELETE and the profile will
be deleted permanently.
Set as Default Trailer
Touch Set as Default Trailer to select the
current profile as default.
The default Trailer profile will be
automatically selected each time a new
connection is detected. The Trailer Detection
Alert will no longer appear.
If this setting is turned off, the current
trailer profile is not the default trailer.
GCW Alerts
Touch GCW Alert to turn on/off the GCW
Alert for the selected profile. These alerts
are based on the Trailer Profile, so the
settings for each Trailer Profile must be
turned on or off.
The setting is on by default for each profile.
Turn this setting off to not receive GCW
Alerts when that Trailer Profile is active.
Maintenance Alerts
Touch Maintenance Alert to turn on/off
Maintenance Alerts for the selected profile.
These alerts are based on the Trailer Profile,
so the settings for each Trailer Profile must
be turned on or off.
The setting is on by default for each profile.
All Maintenance Alerts for that active Trailer
Profile will be received.
Turn this setting off to not receive any of
the Maintenance Alerts when the Trailer
Profile is active.
Theft Alert
Theft alert can be set if a trailer is
connected and the alert is enabled. When
the trailer is disconnected and the vehicle is
off, an alarm will sound.
Touch Theft Alert to turn on/off Theft Alerts
for the selected profile. These alerts are
based on the Trailer Profile, so the settings
for each Trailer Profile must be turned on
or off.
This setting will be off by default for each
Trailer Profile, including the Guest Trailer
Profile.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 5/16/22
316 Driving and Operating
A smartphone will receive a notification that
the trailer related to the selected Trailer
Profile is disconnected from the vehicle,
if the setting is on for the active Trailer
Profile, the vehicle has an OnStar or
connected service plan and the smartphone
number has been added to the account for
this notification.
If the setting is turned off for a given Trailer
Profile, the smartphone will not receive this
security notification even if the Trailer
Profile is active.
Tow/Haul Mode Reminder
This is a reminder to turn on the Tow/Haul
mode when towing a trailer. SeeDriver
Mode Control 0228.
Touch Tow/Haul Mode Reminder to turn on/
off Tow/Haul Mode reminders for the
selected profile. These alerts are based on
the Trailer Profile, so the settings for each
Trailer Profile must be turned on or off.
This setting will default to OFF for each
Trailer Profile, including the Guest Trailer
Profile. If Tow/Haul Mode is off and this setting is
on for a Trailer Profile, each time the vehicle
is turned on, a reminder will appear to turn
on Tow/Haul Mode when the Trailer Profile
is active.
If Tow/Haul Mode is on and this setting is
on for a Trailer Profile, the reminder will not
appear when the Trailer Profile is active.
Conversions and Add-Ons
Add-On Electrical Equipment
{Warning
The Data Link Connector (DLC) is used for
vehicle service and Emission Inspection/
Maintenance testing. See
Malfunction
Indicator Lamp (Check Engine Light) 0114.
A device connected to the DLC —such as
an aftermarket fleet or driver-behavior
tracking device —may interfere with
vehicle systems. This could affect vehicle
operation and cause a crash. Such devices
may also access information stored in the
vehicle’s systems.
Caution
Some electrical equipment can damage
the vehicle or cause components to not
work and would not be covered by the
vehicle warranty. Always check with your
dealer before adding electrical equipment.
{Warning
Certain mobile radio equipment,
like amplifiers and antennas used for
two-way communication, can interfere
with some vehicle systems. Always
ensure this equipment is supplied with
proper local grounding. Follow all of the
instructions that came with the
equipment and see your GM dealer for
additional mobile radio installation
instructions.
Add-on equipment can drain the vehicle's
12-volt battery, even if the vehicle is not
operating.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/26/22
Vehicle Care 333
If the decision is made to lift the hood,
make sure the vehicle is parked on a level
surface. SeeRoadside Assistance Program
0 414.
Check to see if the engine cooling fan(s) are
running. If the engine is overheating, the
fans should be running. If they are not, do
not continue to run the engine. Have the
vehicle serviced.
Caution
Do not run the engine if there is a leak
in the engine cooling system. This can
cause a loss of all coolant and can
damage the system and vehicle. Have
any leaks fixed right away.
If Steam is Coming from the Engine
Compartment
{Warning
Steam and scalding liquids from a hot
cooling system are under pressure.
Turning the pressure cap, even a little,
can cause them to come out at high
speed and you could be burned. Never
turn the cap when the cooling system, (Continued)
Warning (Continued)
including the pressure cap, is hot. Wait
for the cooling system and pressure cap
to cool.
If No Steam is Coming from the Engine
Compartment
The ENGINE OVERHEATED STOP ENGINE or
the ENGINE OVERHEATED IDLE ENGINE
message, along with a low coolant
condition, can indicate a serious problem.
If there is an engine overheat warning, but
no steam is seen or heard, the problem may
not be too serious. Sometimes the engine
can get a little too hot when the vehicle:
.Climbs a long hill on a hot day.
.Stops after high-speed driving.
.Idles for long periods in traffic.
.Tows a trailer; seeTrailer Towing0292.
If the ENGINE OVERHEATED STOP ENGINE or
the ENGINE OVERHEATED IDLE ENGINE
message appears with no sign of steam, try
this for a minute or so: 1. Turn the air conditioning off. 2. Turn the heater on to the highest
temperature and to the highest fan
speed. Open the windows as necessary.
3. When it is safe to do so, pull off the road, shift to P (Park) or N (Neutral), and
let the engine idle.
If the engine coolant temperature gauge is
no longer in the overheat zone or an
overheat warning no longer displays, the
vehicle can be driven. Continue to drive the
vehicle slowly for about 10 minutes. Keep a
safe vehicle distance from the vehicle in
front. If the warning does not come back on,
continue to drive normally and have the
cooling system checked for proper fill and
function.
If the warning continues, pull over, stop, and
park the vehicle right away.
If there is still no sign of steam and the
vehicle is equipped with an engine driven
cooling fan, push down the accelerator until
the engine speed is about twice as fast as
normal idle speed for at least five minutes
while the vehicle is parked. If the warning is
still there, turn off the engine and get
everyone out of the vehicle until it
cools down.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/26/22
334 Vehicle Care
If there is no sign of steam, idle the engine
for five minutes while parked. If the warning
is still displayed, turn off the engine until it
cools down.
Engine Fan
If the vehicle has electric cooling fans, the
fans may be heard spinning at low speed
during most everyday driving. The fans may
turn off if no cooling is required. Under
heavy vehicle loading, trailer towing, high
outside temperatures, or operation of the air
conditioning system, the fans may change
to high speed and an increase in fan noise
may be heard. This is normal and indicates
that the cooling system is functioning
properly. The fans will change to low speed
when additional cooling is no longer
required.
The electric engine cooling fans may run
after the engine has been turned. off. This is
normal and no service is required.
Washer Fluid
What to Use
When windshield washer fluid needs to be
added, be sure to read the manufacturer's
instructions before use. Use a fluid that hassufficient protection against freezing in an
area where the temperature may fall below
freezing.
Adding Washer Fluid
The vehicle has a low washer fluid message
on the DIC that comes on when the washer
fluid is low. The message is displayed for
15 seconds at the start of each ignition cycle.
When the WASHER FLUID LOW ADD FLUID
message displays, washer fluid will need to
be added to the windshield washer fluid
reservoir.
Open the cap with the washer symbol on it.
Add washer fluid until the tank is full. See
Engine Compartment Overview
0322 for
reservoir location.
Caution
.Do not use washer fluid that contains
any type of water repellent coating.
This can cause the wiper blades to
chatter or skip.
.Do not use engine coolant (antifreeze)
in the windshield washer. It can
damage the windshield washer system
and paint.
.Do not mix water with ready-to-use
washer fluid. Water can cause the
solution to freeze and damage the
washer fluid tank and other parts of
the washer system.
.When using concentrated washer fluid,
follow the manufacturer instructions
for adding water.
.Fill the washer fluid tank only
three-quarters full when it is very cold.
This allows for fluid expansion if
freezing occurs, which could damage
the tank if it is completely full.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/26/22
Vehicle Care 347
FusesUsage
9 ELM 5 –Exterior
Lighting Module 5
10 ELM 6 –Exterior
Lighting Module 6
11 Spare
12 –
13 Washer Front
14 Washer Rear 15 REC 2 –Rear Electrical
Center 2
16 Power Sounder 17 Spare
19 DC/AC Inverter
20 IECR 2 21 –
22 IECL 2
24 EBCM –Electronic Brake
Control Module
25 REC 1 –Rear Electrical
Center 1
26 Camera Wash Fuses
Usage
27 Horn
28 Headlamp RT –Right
29 Headlamp LT –Left
30 ELM 3 –Exterior
Lighting Module 3
31 ELM 1 –Exterior
Lighting Module 1
32 –
33 Not R/C
34 –
37 On Board Diagnostics (OBD) Body
38 MISC Body
39 Upfitter
40 MISC Instrument Panel (IP)
41 Trailer Parking Lamps
42 Right Taillamp
44 Trailer Tow 45 Secondary Axle Motor Fuses
Usage
46 Engine Control Module (ECM) Ignition
47 OBD Engine
48 –
49 TCM –Telematics
Control Module
50 A/C Clutch 51 TCCM –Transfer Case
Control Module
52 Front Wiper
53 –
54 Left Taillamps 55 Trailer Back-up Lamp
56 SADS –Semi Active
Damping System
57 Spare
58 Starter Motor
60 AFM 1 –Active Fuel
Management 1
61 Automatic Lamp Control (ALC) Main

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/26/22
348 Vehicle Care
FusesUsage
62 ICCM/CVS/DEF –
Integrated Chassis
Control Module/Canister
Vent Solenoid/Diesel
Exhaust Fluid
63 Trailer Brake
65 AUX UEC –Auxiliary
Underhood Electrical
Center
66 Left Cool Fan Motor 67 AFM 2 –Active Fuel
Management 2
68 Automatic Lamp Control (ALC) Motor
69 Starter Pinion 71 Cool Fan Motor Lower
72 Right Cool Fan Motor/ Lower
73 Left Trailer Stop Turn Lamp
74 TIM 2 –Trailer Interface
Module 2
75 DEFC –Diesel Exhaust
Fluid Controller Fuses
Usage
76 ELEC RNG BDS
78 ECM –Engine Control
Module
79 –
80 Cabin Cool Pump 17W 81 Right Trailer Stop Turn Lamp
82 TIM 1 –Trailer Interface
Module 1
83 FTZM –Fuel Tank Zone
Module
84 Trailer Battery 85 Engine
86 ECM –Engine Control
Module
87 Injector B Even
88 02 B Sensor
89 02 A Sensor
90 Injector A Odd 91 Engine Control Module (ECM) Throttle Control Fuses
Usage
92 Cool Fan Clutch AERO Shutter
Relays Usage
5 –
18 DC/AC Inverter
23 –
35 Park Lamp
36 Run/Crank
43 Secondary Axle Motor
59 A/C Clutch
64 Starter Motor 70 Starter Pinion 77 Powertrain

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/26/22
Vehicle Care 355
Passenger/Spare Tire
(1) Tire Size:The tire size is a
combination of letters and numbers
used to define a particular tire's width,
height, aspect ratio, construction type,
and service description. See the "Tire
Size" illustration in this section.
(2) TPC Spec (Tire Performance Criteria
Specification)
:Original equipment tires
designed to GM's specific tire
performance criteria have a TPC
specification code molded onto the
sidewall. GM's TPC specifications meet
or exceed all federal safety guidelines. (3) DOT (Department of
Transportation)
:The Department of
Transportation (DOT) code indicates that
the tire is in compliance with the U.S.
Department of Transportation Motor
Vehicle Safety Standards.
DOT Tire Date of Manufacture
:The last
four digits of the Tire Identification
Number indicate the tire manufactured
date. The first two digits represent the
week and the last two digits, the year.
For example, the third week of the year
2020 would have a 4-digit DOT date
of
0320. Week 01 is the first full week (Sunday
through Saturday) of each year.
(4) Tire Identification Number (TIN):
The letters and numbers following the
DOT code are the TIN. The TIN shows
the manufacturer and plant code, tire
size, and date the tire was
manufactured. The TIN is molded onto
both sides of the tire, although only
one side may have the date of
manufacture. (5) Tire Ply Material
:The type of cord
and number of plies in the sidewall and
under the tread.
(6) Uniform Tire Quality Grading
(UTQG)
:Tire manufacturers are
required to grade tires based on three
performance factors: tread wear,
traction, and temperature resistance.
For more information, see Uniform Tire
Quality Grading 0368.
(7) Maximum Cold Inflation Load
Limit
:Maximum load that can be
carried and the maximum pressure
needed to support that load. For
information on recommended tire
pressure see Tire Pressure 0358 and
Vehicle Load Limits 0205.
(8) Temporary Use Only
:Only use a
temporary spare tire until the road tire
is repaired and replaced. This spare tire
should not be driven on over 112 km/h
(70 mph), or 88 km/h (55 mph) when
pulling a trailer, with the proper
inflation pressure. See Full-Size Spare
Tire 0382.