CHEVROLET SUBURBAN 2023 Owners Manual

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 5/16/22
310 Driving and Operating
.Trailer Length: 300 cm (118.1 in)–
1200 cm (472.4 in). Measure from center
of coupler to furthest rear point on the
trailer.
If trailer dimensions are out of range, this
feature will be unavailable.
Status View
If a trailer is connected, the Status view
shows status information for the active
trailer profile.
If no trailer is connected, the Status view
shows the last trailer profile with a status of
Not Connected.
The Status view shows:
.Lights
.Tires
.Maintenance
.Cameras
.Checklists
.Weight
.Towing Assist
Scroll right or left to see more options.
The Status View displays mileage and fuel
economy information.
Each section shows high level status
information for the feature. Selecting a
section will open up a new screen with
additional information and/or options.
Selecting a camera view will open up a new
screen to preview the camera image.
Lights
This view will display the names of the
trailer connector pins, a graphic of the trailer
connector, and a graphic of the back of the
trailer. Any connector pin that failed will be amber
color, and the location of the corresponding
connection will be highlighted on the
graphic of the back of the trailer.
If a trailer connection is detected without
any faults, the view will display No Issues
Found.
When a trailer is connected, the Trailering
App System detects the trailer connection
using the Stop/Turn Signal lighting circuits
and alerts the driver by requesting a trailer
profile setup through the Trailering App
System on the infotainment screen. If a
default trailer profile is selected, the
Trailering App System will not display a
Trailer Detection Alert to the user when a
trailer is connected.
When a trailer is connected and the vehicle
is off, the Trailering App System will
periodically pulse the lighting circuits of the
trailer to verify it is still connected. The
trailer lights may periodically flash as a
result of this trailer connection detection.
These flashes may be more visible in dark
ambient light environments. The flashing or
flickering lights are a normal condition and
the Trailering App System has built-in
protections to prevent the battery from

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Driving and Operating 311
draining. When Theft Alert is enabled, the
frequency and pattern of this flashing will
change.
If a connected trailer becomes disconnected,
a message about the trailer disconnect will
appear on the DIC immediately (if vehicle is
on) or the next time the vehicle is turned on
(if trailer was disconnected while vehicle is
off). Check your trailer connection if needed.
Connection Problem
If any of the trailer connections are lost, a
message about the connection issue will
appear on the Driver Information Center
(DIC). The infotainment display will also
show the connection issue in the Lights
Status view.
Connection Trailer Lighting Faults Detected
The Trailering App System monitors for
electrical faults on the trailer lights.
A message about the lighting issue will
appear on the DIC. The infotainment display
will also show the lighting issue in the
Lights Status view. Repair your trailer lights
if needed. A trailer lighting issue is not
covered by your GM warranty.The Running Lights connection may not
detect partial outages. Activate the light test
to check all trailer lamps. See
“Light Test”
following.
Light Test
Touch Start Light Test to cycle the trailer
lights on and off to determine if they are
working. The test follows this sequence:
1. The running lights turn on first and remain on throughout the sequence.
2. The brake lights turn on for about two seconds.
3. The left turn signal light flashes three times.
4. The right turn signal light flashes three times.
5. The reverse lights turn on for about two seconds.
6. Steps 2-5 repeat for approximately on minute and 45 seconds, or until the test
deactivates.
Touch Stop to stop the test. The test will
automatically end after one minute and
45 seconds.
The sequence also deactivates when any of
the following occur:
.The vehicle is turned off.
.The transmission is shifted out of
P (Park).
.The brake pedal is pressed.
.The turn signal is activated.
.The hazard warning lights are activated.
Tires
Tire Pressure and Temperature
If the TTPMS sensor-to-vehicle learn process
was completed, the status view will display
the current tire pressure and temperature of
the trailer tires related to the active Trailer
Profile. If a tire’s pressure is low or high, the
color of the pressure value will be amber.
If a sensor malfunctions, the values are
dashed lines. If the screen displays “Service
Tire Pressure Monitoring System,” the
vehicle needs to be taken to a dealer for
service.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
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312 Driving and Operating
Touch to set up the Trailer Tire Pressure
Monitoring System (TTPMS) for the Trailer
Profile. See“Trailer Tire Pressure Setup”
previously in this section for details on the
setup. Also, touch Sensor Setup if the trailer
tires were rotated or if the tire pressure
sensors in the tires were replaced for this
Trailer Profile. The vehicle will need to
relearn the tire sensors and their locations.
See “Trailer Tire Pressure Setup” previously
in this section.
Touch Edit Target Pressure to change the
recommended tire pressure for the trailer’s
tires. This will change the number at which
the vehicle displays alerts related to trailer
tire pressure.
Maintenance
Touch to view a list of maintenance
reminders for the Trailer Profile. The Maintenance Status view displays
reminders for the Trailer Profile. Touch a
reminder to view, reset, delete or edit it.
Resetting a reminder will reset the time and
mileage values for the reminder. The
progress bar turns yellow when the
maintenance item reaches 90% complete.
The progress bar turns red when the
maintenance item reaches 100% complete.
Touch New Reminder to add a new
maintenance reminder.
Suggested reminders that were previously
set will not appear. Suggested reminders
that have not been set will have empty
boxes next to them. The maximum number
of reminders is 50.
Maintenance Notifications
Touch Reset to reset time and mileage
values for the reminder.
Touch Remind Me Later to delay the
reminder.
If an Upcoming Alert (90%) is dismissed, it
will not appear again.
If a Maintenance Due Alert (100%) is
dismissed, it will appear when the vehicle is
turned off and back on again.
Always follow all of the maintenance
instructions that came with your trailer.
Cameras
This view shows a preview of the selected
camera view. Touch X to exit the preview.
Touch the camera icon to open the
camera app.
Checklist View

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Driving and Operating 313
This view shows the recommended steps to
take before towing a trailer.
Touch the box next to each item if that step
has been completed.
Touch
4to access a detailed view of each
step. Within each detailed view, touch Next
and Previous to navigate between steps.
Touch Clear All to clear the completed
statuses from all items in the current
checklist.
Custom Checklist Items
For each of the Trailer Profile checklists,
there is an option to create custom items to
view in the checklist. The custom item will
appear at the bottom of the checklist.
Guest Trailer and No Trailer Connected
If a Guest Trailer Profile is active, or if no
trailer is connected, the checklist will show
all of the checklists associated with Custom
Trailer Profiles in addition to default
checklist.
Weight
Touch to turn on or off the GCW Alert.
Touch
4to learn more about the GCW Alert.
When on, an alert may be presented when
the combined weight of the vehicle and
trailer may exceed the vehicle’s Gross
Combined Weight Rating. See Trailer Towing
0 292 for more information on the Gross
Combined Weight Alert.
Towing Assist
A trailer should be connected to complete
this portion of profile setup.
Touch to set up towing assist features for
the Trailer Profile. See "Towing Assist" for
details on the setup.
Guest Trailer Status View
If the Guest Trailer Profile is active, the
Status view shows:
.Lights
.Cameras
.Checklist
.Weight
Scroll right or left to see more options.
The Trailer Status view displays mileage and
fuel economy information. Mileage and fuel
economy resets 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
Touch the trailer profile icon/name in the
Status View to view, activate, create, edit,
or delete Trailer Profiles.
If a trailer is connected, touch the Trailer
Profile name to activate a Trailer Profile.
There can be up to five Custom Trailer
Profiles on the vehicle.

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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

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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/
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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.

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Driving and Operating 317
The vehicle has an airbag system. Before
attempting to add anything electrical
to the vehicle, seeServicing the
Airbag-Equipped Vehicle 068 and
Adding Equipment to the Airbag-Equipped
Vehicle 068.

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318 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . . . . . . . . . . 319
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . . . . . . 319
Accessories and Modifications . . . . . . . . . 319
Vehicle Checks
Doing Your Own Service Work . . . . . . . . . 319
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
Engine Compartment Overview . . . . . . . . 322
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325
Engine Oil Life System . . . . . . . . . . . . . . . . 326
Automatic Transmission Fluid . . . . . . . . . . 327
Engine Air Filter Life System . . . . . . . . . . 328
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . 328
Cooling System . . . . . . . . . . . . . . . . . . . . . . . 329
Engine Overheating . . . . . . . . . . . . . . . . . . . . 332
Engine Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 334
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335
Brake Pad Life System . . . . . . . . . . . . . . . . . 335
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
Battery - North America . . . . . . . . . . . . . . . 337
Four-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . 338
Front Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338
Rear Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338
Park Brake and P (Park) Mechanism Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339 Wiper Blade Replacement . . . . . . . . . . . . . 339
Glass Replacement . . . . . . . . . . . . . . . . . . . . 340
Windshield Replacement . . . . . . . . . . . . . . 340
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . . . . . . . 341
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . 341
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
Taillamps, Turn Signal, Stoplamps, and
Back-Up Lamps . . . . . . . . . . . . . . . . . . . . . . 342
Electrical System
Electrical System Overload . . . . . . . . . . . . 343
Fuses and Circuit Breakers . . . . . . . . . . . . . 344
Engine Compartment Fuse Block . . . . . . 345
Instrument Panel Fuse Block . . . . . . . . . . 349
Rear Compartment Fuse Block . . . . . . . . . 351
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353
All-Season Tires . . . . . . . . . . . . . . . . . . . . . . . . 353
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 354
Low-Profile Tires . . . . . . . . . . . . . . . . . . . . . . . 354
All-Terrain Tires . . . . . . . . . . . . . . . . . . . . . . . . 354
Tire Sidewall Labeling . . . . . . . . . . . . . . . . . 354
Tire Designations . . . . . . . . . . . . . . . . . . . . . . 356
Tire Terminology and Definitions . . . . . . 356
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 358 Tire Pressure for High-Speed
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 359
Tire Pressure Monitor System . . . . . . . . . 360
Tire Pressure Monitor Operation . . . . . . . 361
Tire Inspection . . . . . . . . . . . . . . . . . . . . . . . . 365
Tire Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . 365
When It Is Time for New Tires . . . . . . . . 366
Buying New Tires . . . . . . . . . . . . . . . . . . . . . 367
Different Size Tires and Wheels . . . . . . . 368
Uniform Tire Quality Grading . . . . . . . . . 368
Wheel Alignment and Tire Balance . . . . 369
Wheel Replacement . . . . . . . . . . . . . . . . . . . 370
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . . 371
Tire Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 372
Full-Size Spare Tire . . . . . . . . . . . . . . . . . . . . 382
Jump Starting
Jump Starting - North America . . . . . . . . 383
Towing the Vehicle
Transporting a Disabled Vehicle . . . . . . . 386
Recreational Vehicle Towing . . . . . . . . . . . 387
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . . . . . . . . . . 390
Interior Care . . . . . . . . . . . . . . . . . . . . . . . . . . 394
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 397

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Vehicle Care 319
General Information
For service and parts needs, visit your
dealer. You will receive genuine GM parts
and GM-trained and supported service
people.
Genuine GM parts have one of these marks:
California Perchlorate Materials
Requirements
Certain types of automotive applications,
such as airbag initiators, seat belt
pretensioners, and lithium batteries
contained in electronic keys, may contain
perchlorate materials. Perchlorate Material–special handling may apply. See
www.dtsc.ca.gov/hazardouswaste/
perchlorate.
Accessories and Modifications
Adding non-dealer accessories or making
modifications to the vehicle can affect
vehicle performance and safety, including
such things as airbags, braking, stability,
ride and handling, emissions systems,
aerodynamics, durability, Driver Assistance
Systems, and electronic systems like antilock
brakes, traction control, and stability control.
These accessories or modifications could
even cause malfunction or damage not
covered by the vehicle warranty.
Damage to suspension components caused
by modifying vehicle height outside of
factory settings will not be covered by the
vehicle warranty.
Damage to vehicle components resulting
from modifications or the installation or use
of non-GM certified parts, including control
module or software modifications, is not
covered under the terms of the vehicle
warranty and may affect remaining
warranty coverage for affected parts.
GM Accessories are designed to complement
and function with other systems on the
vehicle. See your dealer to accessorize the
vehicle using genuine GM Accessories
installed by a dealer technician.
Also, see
Adding Equipment to the
Airbag-Equipped Vehicle 068.
Vehicle Checks
Doing Your Own Service Work
{Warning
It can be dangerous to work on your
vehicle if you do not have the proper
knowledge, service manual, tools,
or parts. Always follow owner’s manual
procedures and consult the service
manual for your vehicle before doing any
service work.
If doing some of your own service work, use
the proper service manual. It tells you much
more about how to service the vehicle than
this manual can. To order the proper service
manual, see Publication Ordering
Information 0418.