2023 CHEVROLET SUBURBAN trailer

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/25/22
6 Introduction
1.Electric Parking Brake 0223.
2.
gTraction Control/Electronic Stability
Control 0225.
hAuto Stop Disable Switch (If
Equipped). See Stop/Start System 0211
XPark Assist Button (If Equipped). See
Assistance Systems for Parking or Backing
0 262.
ALane Keep Assist (LKA) 0283 (If
Equipped).
5Hill Descent Control (HDC) 0227 (If
Equipped).
3. Air Vents 0190
4. Turn Signal Lever. See Turn and
Lane-Change Signals 0139.
Windshield Wiper/Washer 095.
Rear Window Wiper/Washer 096.
5. Head-Up Display (HUD) 0128 (If
Equipped).
6. Favorite Switches (Out of View). See Steering Wheel Controls 0146.
Volume Switches (Out of View). See
Steering Wheel Controls 0146.
7. Instrument Cluster (Base Level) 0102 or
Instrument Cluster (Uplevel) 0104. 8. Shift Buttons. See
Automatic
Transmission 0215.
Electronic Range Select (ERS). See Manual
Mode 0218.
9. Light Sensor. See Automatic Headlamp
System 0138.
10. Infotainment. See Introduction0143.
11. Instrument Panel Storage 088 (If
Equipped).
12. Hazard Warning Flashers 0139.
13. Infotainment. See Overview0144.
14. Dual Automatic Climate Control System
0186.
15. Heated and Ventilated Front Seats 042
(If Equipped).
16. Power Outlet (12V Direct Current) (If Equipped). See Power Outlets098.
17. Rear Climate Control Buttons. See Rear
Climate Control System 0189.
18. USB Port 0153.
19. Wireless Charging 099.
20. ENGINE START/STOP. See Ignition
Positions 0209.
21. Steering Wheel Controls 0146.
22. Horn 095.
23. Hood Release. See Hood0320. 24.
Steering Wheel Adjustment 094.
25. Cruise Control 0234.
Adaptive Cruise Control (Advanced) 0236
(If Equipped).
Forward Collision Alert (FCA) System
0 275 (If Equipped).
Heated Steering Wheel 094 (If
Equipped).
26. Trailer Brake Control Panel (If Equipped). SeeTowing Equipment 0296.
27. Data Link Connector (DLC) (Out of View). SeeMalfunction Indicator Lamp (Check
Engine Light) 0114.
28. Exterior Lamp Controls 0136.
Instrument Panel Illumination Control
0 140.
29. Driver Mode Control 0228.
Automatic Transfer Case Knob (If
Equipped). See Four-Wheel Drive 0219.
Four Corner Air Suspension System 0231
(If Equipped).

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/25/22
114 Instruments and Controls
Malfunction Indicator Lamp
(Check Engine Light)
This light is part of the vehicle’s emission
control on-board diagnostic system. If this
light is on while the engine is running, a
malfunction has been detected and the
vehicle may require service. The light should
come on to show that it is working when
the ignition is in Service Mode. SeeIgnition
Positions 0209.
Malfunctions are often indicated by the
system before any problem is noticeable.
Being aware of the light and seeking service
promptly when it comes on may prevent
damage.
Caution
If the vehicle is driven continually with
this light on, the emission control system
may not work as well, the fuel economy
may be lower, and the vehicle may not
(Continued)
Caution (Continued)
run smoothly. This could lead to costly
repairs that might not be covered by the
vehicle warranty.
Caution
Modifications to the engine, transmission,
exhaust, intake, or fuel system, or the
use of replacement tires that do not
meet the original tire specifications, can
cause this light to come on. This could
lead to costly repairs not covered by the
vehicle warranty. This could also affect
the vehicle’s ability to pass an Emissions
Inspection/Maintenance test. See
Accessories and Modifications 0319.
If the light is flashing : A malfunction has
been detected that could damage the
emission control system and increase vehicle
emissions. Diagnosis and service may be
required.
To help prevent damage, reduce vehicle
speed and avoid hard accelerations and
uphill grades. If towing a trailer, reduce the
amount of cargo being hauled as soon as
possible. If the light continues to flash, find a safe
place to park. Turn the vehicle off and wait
at least 10 seconds before restarting the
engine. If the light is still flashing, follow
the previous guidelines and see your dealer
for service as soon as possible.
If the light is on steady :
A malfunction has
been detected. Diagnosis and service may be
required.
Check the following:
.If fuel has been added to the vehicle
using the capless fuel funnel adapter,
make sure that it has been removed. See
“Filling the Tank with a Portable Gas Can”
under Filling the Tank 0286. The
diagnostic system can detect if the
adapter has been left installed in the
vehicle, allowing fuel to evaporate into
the atmosphere. A few driving trips with
the adapter removed may turn off the
light.
.Poor fuel quality can cause inefficient
engine operation and poor driveability,
which may go away once the engine
is warmed up. If this occurs, change the
fuel brand. It may require at least one
full tank of the proper fuel to turn the

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/25/22
Instruments and Controls 119
your dealer as soon as possible. A Driver
Information Center (DIC) message may
display.
The light flashes when the TCS and/or the
StabiliTrak/ESC system is actively working.
SeeTraction Control/Electronic Stability
Control 0225.
The light may also flash when ABS is active.
See Antilock Brake System (ABS) 0223.
Trailer Sway Control Light (Uplevel
Cluster)
This light will flash when Trailer Sway
Control is active. See Trailer Sway Control
(TSC) 0305.
Engine Coolant Temperature
Warning Light
This light comes on briefly while starting
the vehicle.
If it does not, have the vehicle serviced by
your dealer. If the system is working
normally the indicator light goes off.
Caution
The engine coolant temperature warning
light indicates that the vehicle has
overheated. Driving with this light on can
damage the engine and it may not be
covered by the vehicle warranty. See
Engine Overheating 0332.
The engine coolant temperature warning
light comes on when the engine has
overheated. If this happens, pull over and turn off the
engine as soon as possible. See
Engine
Overheating 0332.
Driver Mode Control Light
This light comes on when Normal Mode is
selected.
This light comes on when Sport Mode is
selected.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/25/22
Instruments and Controls 125
When the remaining oil life is low, the
CHANGE ENGINE OIL SOON message will
appear on the display. The oil should be
changed as soon as possible. SeeEngine Oil
0 325. In addition to the engine oil life
system monitoring the oil life, additional
maintenance is recommended. See
Maintenance Schedule 0400.
The Oil Life display must be reset after each
oil change. It will not reset itself. Do not
reset the Oil Life display at any time other
than when the oil has just been changed.
It cannot be reset accurately until the next
oil change. To reset, see Engine Oil Life
System 0326.
Tire Pressure : Shows the approximate
pressures of all four tires. Tire pressure is
displayed in either kilopascal (kPa) or in
pounds per square inch (psi). If the pressure
is low, the value for that tire is shown in
amber. See Tire Pressure Monitor System
0 360 andTire Pressure Monitor Operation
0 361.
Air Filter Life : Shows an estimate of the
remaining engine air filter’s life and the
state of the system. Engine Air Filter Life
95% means 95% of the current air filter life
remains. Messages will display based on the
engine air filter life and the state of the system. When the REPLACE SOON message
displays, the engine air filter should be
replaced at the earliest convenience.
The Air Filter Life display must be reset after
the engine air filter replacement. To reset,
see
Engine Air Filter Life System 0328.
Brake Pad Life : Displays an estimate of the
remaining life of the front and rear brake
pads. Messages will display based on brake
pad wear and the state of the system. Reset
the Brake Pad Life display after replacing the
brake pads. See Brake Pad Life System
0 335.
Fuel Economy : Displays average fuel
economy, the best fuel economy over the
selected distance, and a bar graph showing
instantaneous fuel economy.
Press the thumbwheel to change the
selected distance. Press and hold the
thumbwheel while this display is active to
reset the best fuel economy and average
fuel economy. This display can also be reset
by selecting Reset in the menu.
Engine Hours (Hourmeter) : Shows the total
number of hours the engine has run. This
display also shows the engine idle hours. Transmission Fluid Temperature :
Shows the
temperature of the automatic transmission
fluid in either degrees Celsius (°C) or degrees
Fahrenheit (°F).
Trailer Brake : On vehicles with the
Integrated Trailer Brake Control (ITBC)
system, the trailer brake display appears in
the DIC.
TRAILER GAIN shows the trailer gain setting.
This setting can be adjusted from 0.0 to 10.0
with either a trailer connected or
disconnected.
OUTPUT shows the power output to the
trailer any time a trailer with electric brakes
is connected. Output is displayed as a bar
graph. Dotted lines may appear in the
OUTPUT display if a trailer is not connected.
Off Road : If equipped, displays vehicle pitch
and roll information, road wheel angle, and
four-wheel drive (4WD) status.
Follow Distance : If equipped, the current
follow time to the vehicle ahead is displayed
as a time value on this page.
Driver Assistance : If equipped, shows
information for Lane Keep Assist (LKA) and
Forward Collision Alert (FCA).

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/25/22
128 Instruments and Controls
system. When the REPLACE SOON message
displays, the engine air filter should be
replaced at the earliest convenience.
The Air Filter Life display must be reset after
the engine air filter replacement. To reset,
seeEngine Air Filter Life System 0328.
Trailer Brake : On vehicles with the
Integrated Trailer Brake Control (ITBC)
system, the trailer brake display appears in
the DIC.
TRAILER GAIN shows the trailer gain setting.
This setting can be adjusted from 0.0 to 10.0
with either a trailer connected or
disconnected.
OUTPUT shows the power output to the
trailer any time a trailer with electric brakes
is connected. Output is displayed as a bar
graph. Dotted lines may appear in the
OUTPUT display if a trailer is not connected.
Off Road : If equipped, displays vehicle pitch
and roll information, road wheel angle, and
four-wheel drive (4WD) status. If the vehicle
has low traction, a low traction indicator
and the wheels affected will display amber
in the Off-Road page.
Engine Hours (Hourmeter) : Shows the total
number of hours the engine has run. This
display also shows the engine idle hours. Transmission Fluid Temperature :
Shows the
temperature of the automatic transmission
fluid in either degrees Celsius (°C) or degrees
Fahrenheit (°F).
Info Page Options : Scroll to choose which
info pages appear on the DIC. Press the
thumbwheel to select or deselect.
Blank Page : Shows no information.
Head-Up Display (HUD)
{Warning
If the HUD image is too bright or too
high in your field of view, it may take
you more time to see things you need to
see when it is dark outside. Be sure to
keep the HUD image dim and placed low
in your field of view.
If equipped with HUD, some information
about the operation of the vehicle is
projected onto the windshield. The image is
projected through the HUD lens on top of
the instrument panel. The information
appears as an image focused out toward the
front of the vehicle.
Caution
If you try to use the HUD image as a
parking aid, you may misjudge the
distance and damage your vehicle. Do not
use the HUD image as a parking aid.
The HUD information can be displayed in
various languages. The speedometer reading
and other numerical values can be displayed
in either English or metric units.
The language selection is changed through
the radio, and the units of measurement are
changed through the instrument cluster. See
Settings (Base Radio) 0177 or
Settings (Uplevel Radio) 0178 and “Options”
under Instrument Cluster (Base Level) 0102
or Instrument Cluster (Uplevel) 0104.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/25/22
130 Instruments and Controls
HUD Views
There are four views in the HUD. Some
vehicle information and vehicle messages or
alerts may be displayed in any view.
English Speed View Shown, Metric Similar
Speed View : This displays the speedometer
reading in English or metric units, and speed
limit. Some information only appears on
vehicles that have these features, and when
they are active.
English Active Safety View Shown, Metric
Similar
Active Safety View : This displays the speed
view along with a driver assistance graphic
on the left. Driver assistance graphics show
your vehicle, vehicle ahead, gap setting, and
lane status information. In addition to driver
assistance graphics, pedestrian advisory and
trailer sway indicators will be displayed.
English Turn-by-Turn Shown, Metric Similar
English Compass Shown, Metric Similar
Navigation/Active OnStar View : This
displays the speed view along with
indicators for vehicle ahead, Lane Departure
Warning/Lane Keep Assist, trailer sway, and
pedestrian advisory. Turn-by-Turn navigation
information is shown during active route.
The compass heading is displayed when
navigation routing is not active.
Navigation Turn-by-Turn Alerts shown in the
instrument cluster may also be displayed in
any HUD view.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/25/22
Instruments and Controls 131
English Off Road View Shown, Metric Similar
Off Road View : This displays the speed
view along with indicators for vehicle ahead,
Lane Departure Warning/Lane Keep Assist,
trailer sway, four-wheel drive status, and
pedestrian advisory. Off-road information
such as pitch angle, steering angle, and
rolling angle is also shown.
Temporary Overlays
Infotainment: Audio, and Phone, are
temporary overlays linked to cluster layouts.English Audio Overlay Shown, Metric Similar
English Phone Overlay Shown, Metric Similar
Audio/Phone Overlay : This displays digital
speed, indicators from speed view along
with audio/phone information, vehicle ahead
indicator, Lane Departure Warning/Lane
Keep Assist, Adaptive Cruise Control, and set
speed. The current radio station, media type,
and incoming calls will also be displayed. Audio overlays display when the audio app
is selected on the instrument cluster. All
HUD views may briefly display audio
information when the driver uses the
steering wheel controls to adjust the audio
settings appearing in the instrument cluster.
Incoming phone calls appearing in the
instrument cluster, may also display in any
HUD view.
Care of the HUD
Clean the inside of the windshield to remove
any dirt or film that could reduce the
sharpness or clarity of the HUD image.
Clean the HUD lens with a soft cloth
sprayed with glass cleaner. Wipe the lens
gently, then dry it.
HUD Troubleshooting
Check that:
.Nothing is covering the HUD lens.
.The HUD brightness setting is not too
dim or too bright.
.The HUD is adjusted to the proper height.
.Polarized sunglasses are not worn.
.The windshield and HUD lens are clean.
If the HUD image is not correct, contact
your dealer.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 4/25/22
142 Lighting
The exterior and interior lamps remain on
for a set amount of time, then automatically
turn off.
The interior lights turn on when the vehicle
is turned off.
The exterior lamps turn off immediately by
turning the exterior lamp control off.
This feature can be changed. On the
infotainment home screen, select the
Settings icon
TVehicleTExit Lighting.
Battery Load Management
The vehicle has Electric Power Management
(EPM), which estimates the battery's
temperature and state of charge. It then
adjusts the voltage for best performance
and extended life of the battery.
When the battery's state of charge is low,
the voltage is raised slightly to quickly bring
the charge back up. When the state of
charge is high, the voltage is lowered
slightly to prevent overcharging. The
voltmeter gauge or the voltage display on
the Driver Information Center (DIC),
if equipped, may show the voltage moving
up or down. This is normal. If there is a
problem, an alert will be displayed.The battery can be discharged at idle if the
electrical loads are very high. This is true for
all vehicles. This is because the generator
(alternator) may not be spinning fast
enough at idle to produce all the power that
is needed for very high electrical loads.
A high electrical load occurs when several of
the following are on, such as: headlamps,
high beams, rear window defogger, climate
control fan at high speed, heated seats,
engine cooling fans, trailer loads, and loads
plugged into accessory power outlets.
EPM works to prevent excessive discharge of
the battery. It does this by balancing the
generator's output and the vehicle's
electrical needs. It can increase engine idle
speed to generate more power, whenever
needed. It can temporarily reduce the power
demands of some accessories.
Normally, these actions occur in steps or
levels, without being noticeable. In rare
cases at the highest levels of corrective
action, this action may be noticeable to the
driver. If so, a DIC message might be
displayed and it is recommended that the
driver reduce the electrical loads as much as
possible.
Battery Power Protection
This feature helps prevent the battery from
being drained, if the interior courtesy lamps
or reading lamps are accidentally left on.
If any of these lamps are left on, they
automatically turn off after 10 minutes,
if the ignition is off. The lamps will not
come back on again until one of the
following occurs:
.The ignition is turned on.
.The doors are closed and then re-opened.
Exterior Lighting Battery Saver
The exterior lamps turn off about 10 minutes
after the vehicle is turned off, if the parking
lamps or headlamps have been manually
left on. This protects against draining the
battery. To restart the 10-minute timer, turn
the exterior lamp control to the
Oposition
and then back to the
;or2position.
To keep the lamps on for more than
10 minutes, the vehicle must be on or in
accessory mode.