2023 CHEVROLET SUBURBAN Owners Manual

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 5/16/22
232 Driving and Operating
Changing Ride Height
Press the Ride Height button to open the
Ride Height Menu on the Instrument Panel.
Turn the knob left or right to select the
desired ride height in the menu. To finalize
the selection, either press the Ride Height
button again or wait three seconds for the
menu to timeout. Ride Heights that are
unavailable for selection will be greyed out
in the menu.
Ride Height Descriptions
Normal Height is the standard vehicle height
used for everyday driving.
Entry/Exit Height
Entry/Exit Height is 50 mm (2 in) lower than
Normal Height. This ride height lowers the
vehicle for easy entry and exit from the
vehicle as well as providing a lower height
for loading and unloading cargo from any
door or the rear liftgate.
This ride height can be selected in the Ride
Height Menu at any vehicle speed. When
Entry/Exit Height is selected at higher
speeds, the vehicle will wait to lower until
the vehicle slows to less than
12 km/h (7 mph).
The vehicle will automatically raise to
Normal Height from Entry/Exit Height when
speed increases above 8 km/h (5 mph). If no
door has been opened since lowering to
Entry/Exit Height, the vehicle will wait toraise to Normal Height until 30 km/h
(19 mph). This gives the driver more
flexibility when lowering to Entry/Exit
Height for passenger pick up and drop off.
The driver can enable Automatic Entry/
Egress Mode to automatically lower to
Entry/Exit Height when the vehicle is shifted
to P (PARK). Automatic Entry/Egress Mode
may be enabled via the infotainment screen
under Settings/Vehicle/Ride Height. When
the vehicle is higher than Normal Height,
Automatic Entry/Egress Mode is disabled.
When the vehicle is in Tow/Haul Driver
Mode, Off-Road Driver Mode, or it senses a
trailer is connected, Automatic Entry/Egress
Mode is disabled.
Increased Height
Increased Height is 25 mm (1 in) higher than
Normal Height. This ride height raises the
vehicle for off-road use, allows for higher
speeds than Maximum Height, and is only
available with specific optional content.
Increased Height can be selected in the Ride
Height Menu while vehicle speed is less
than 80 km/h (50 mph). If vehicle speed
exceeds 80 km/h (50 mph), the vehicle will
automatically lower to Normal Height.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 5/16/22
Driving and Operating 233
Off-Road Driver Mode and Terrain Driver
Mode will automatically set Increased
Height when vehicle speed is less than
80 km/h (50 mph). If vehicle speed exceeds
80 km/h (50 mph), the vehicle will lower to
Normal Height. Normal Height will be
maintained until vehicle speed is slowed to
less than 16 km/h (10 mph) and then the
vehicle will automatically raise back to
Increased Height.
The vehicle will automatically lower from
Increased Height to Normal Height to
provide improved stability if aggressive
maneuvers are detected.
Maximum Height
Maximum Height is 50 mm (2 in) higher
than Normal Height. This ride height raises
the vehicle for off-road use and is only
available with specific optional content.
To raise the vehicle to Maximum Height,
first shift the transfer case to 4
n. Once the
transfer case is in 4
nand vehicle speed is
less than 48 km/hr (30 mph), select
Maximum Height in the Ride Height Menu.
If vehicle speed exceeds 48 km/h, the
vehicle will automatically lower to Increased
Height. The vehicle will automatically lower from
Maximum Height to Normal Height to
provide improved stability if aggressive
maneuvers are detected.
Aerodynamic Height
Aerodynamic Height is 20 mm (0.75 in)
lower than Normal Height. This ride height
lowers the vehicle at higher vehicle speeds
to improve aerodynamics.
The vehicle will lower to Aerodynamic
Height when vehicle speed exceeds
105 km/h (65 mph) for a period of time. The
vehicle will raise to Normal Height when the
vehicle slows to less than 48 km/h
(30 mph).
Aerodynamic Height is automatically
disabled when a trailer is connected to the
vehicle or Tow/Haul Driver Mode is active.
Suspension Modes
The air suspension has two special modes
located in the infotainment screen under
Settings/Vehicle/Suspension. When either is
active, the following amber icon will be
illuminated in the instrument cluster.
See
Four Corner Air Suspension Light 0120.
Service Mode
Service Mode will disable all air suspension
operation including raising and lowering the
vehicle and operation of the air compressor.
This mode is useful when the vehicle is
being towed on a flat bed or when any
work under the vehicle is being performed.
Service Mode is automatically enabled when
the vehicle is put on a hoist or a floor jack
is used to raise a corner. Service Mode may
temporarily enable during intense off-road
situations to prevent damaging air
suspension activity. Service Mode
automatically disables when vehicle speed
exceeds 16 km/h (10 mph).
Alignment Mode
Alignment Mode will optimize the vehicle
height to provide the most accurate wheel
alignment. This mode should be enabled
once the vehicle is driven onto the
alignment station.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 5/16/22
234 Driving and Operating
To enable Alignment Mode, ensure the
vehicle is at Normal Height and shift the
vehicle to Neutral. Alignment Mode
automatically disables when vehicle speed
exceeds 16 km/h (10 mph).
Air Suspension Operation with Door(s) or
Hood Open
The air suspension will temporarily suspend
all height changes while the hood or any
door is open. The air suspension resumes
height changes once the hood and all doors
are closed. An open rear liftgate does not
suspend the air suspension operation.
System Over-Temperature
If the air suspension is under heavy use, the
system may temporarily suspend all height
changes to allow compressor cooldown.
When this occurs and a height change is
requested, a‘Leveling System Unavailable’
message will be displayed in the instrument
cluster.
Suspension Lowered for Stability
In the event of a loss of Electronic Stability
Control, the air suspension will lower the
vehicle at higher speeds to provide increased
stability. This will be accompanied by a
‘Vehicle Lowering for Stability’ message in
the instrument cluster. Excessive Vehicle Loading
If the air suspension detects excessive
vehicle loading, it will not raise above
Normal Height.
Air Suspension Service
If a
‘Service Leveling System’ message is
displayed in the instrument cluster, see your
authorized dealer immediately.
Cruise Control
{
Warning
Cruise control can be dangerous where
you cannot drive safely at a steady
speed. Do not use cruise control on
winding roads or in heavy traffic.
Cruise control can be dangerous on
slippery roads. On such roads, fast
changes in tire traction can cause
excessive wheel slip, and you could lose
control. Do not use cruise control on
slippery roads. If equipped with cruise control, a speed of
about 40 km/h (25 mph) or more can be
maintained without keeping your foot on
the accelerator. Cruise control does not work
at speeds below about 40 km/h (25 mph).
If the cruise control is being used and the
Traction Control System (TCS) or StabiliTrak/
Electronic Stability Control (ESC) begins to
limit wheel spin, the cruise control will
automatically disengage. See
Traction
Control/Electronic Stability Control 0225. If a
collision alert occurs when cruise control is
activated, cruise control is disengaged. See
Forward Collision Alert (FCA) System 0275.
When road conditions allow you to safely
use it again, cruise control can be turned
back on.
Turning off the TCS or StabiliTrak/ESC
system will disengage the cruise control.
If the brakes are applied, cruise control
disengages.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 5/16/22
Driving and Operating 235
5:Press to turn cruise control on or off.
A white indicator comes on or off in the
instrument cluster.
+RES : If there is a set speed in memory,
press the control up briefly to resume to
that speed or press and hold to accelerate.
If cruise control is already engaged, use to
increase vehicle speed.
SET− :Press the control down briefly to set
the speed and activate cruise control.
If cruise control is already engaged, use to
decrease vehicle speed.
*: Press to disengage cruise control
without erasing the set speed from memory. Setting Cruise Control
If
5is on when not in use, SET−
or +RES
could get pressed and go into cruise when
not desired. Keep
5off when cruise is not
being used.
1. Press
5to turn the cruise system on.
2. Get up to the desired speed.
3. Press and release SET−.
4. Remove your foot from the accelerator.
The cruise control indicator on the
instrument cluster turns green after cruise
control has been set to the desired speed.
See Instrument Cluster (Base Level) 0102 or
Instrument Cluster (Uplevel) 0104.
Resuming a Set Speed
If the cruise control is set at a desired speed
and then the brakes are applied or
*is
pressed, the cruise control is disengaged
without erasing the set speed from memory.
Once the vehicle reaches about 40 km/h
(25 mph) or more, press RES+ up briefly. The
vehicle returns to the previously set speed. Increasing Speed While Using Cruise Control
Do one of the following:
.Press and hold +RES up until the desired
speed is reached, then release it.
.To increase vehicle speed in small
increments, press +RES up briefly. For
each press, the vehicle goes about 1 km/h
(1 mph) faster.
The speedometer reading can be displayed
in either English or metric units. See
Instrument Cluster (Base Level) 0102 or
Instrument Cluster (Uplevel) 0104. The
increment value used depends on the units
displayed.
Reducing Speed While Using Cruise Control
Do one of the following:
.Press and hold SET– down until the
desired lower speed is reached, then
release it.
.To slow down in small increments, press
SET– down briefly. For each press, the
vehicle goes about 1 km/h (1 mph) slower.
The speedometer reading can be displayed
in either English or metric units. See
Instrument Cluster (Base Level) 0102 or

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 5/16/22
236 Driving and Operating
Instrument Cluster (Uplevel)0104. The
increment value used depends on the units
displayed.
Passing Another Vehicle While Using Cruise
Control
Use the accelerator pedal to increase the
vehicle speed. When you take your foot off
the pedal, the vehicle will slow down to the
previously set cruise speed. While pressing
the accelerator pedal or shortly following
the release to override cruise control, briefly
pressing SET– will result in cruise control set
to the current vehicle speed.
Using Cruise Control on Hills
How well the cruise control works on hills
depends on the vehicle speed, the load, and
the steepness of the hills. When going up
steep hills, pressing the accelerator pedal
may be necessary to maintain vehicle speed.
While going downhill, cruise braking helps
maintain driver selected speed.
Cruise Grade Braking is enabled when the
vehicle is started and cruise control is active.
It is not enabled in Range Selection Mode.
It assists in maintaining driver selected
speed when driving on downhill grades by
using the engine and transmission to slow
the vehicle. For other forms of descent control, see
Hill
Descent Control (HDC) 0227, Automatic
Transmission 0215, and Tow/Haul Mode,
see Driver Mode Control 0228.
Ending Cruise Control
There are four ways to end cruise control:
.Step lightly on the brake pedal.
.Press*.
.Shift the transmission to N (Neutral).
.To turn off cruise control, press5.
Erasing Speed Memory
The cruise control set speed is erased from
memory if
5is pressed or the ignition is
turned off.
Adaptive Cruise Control
(Advanced)
If equipped with Adaptive Cruise Control
(ACC), it allows for selecting the cruise
control set speed and following gap. Read
this entire section before using this system.
ACC uses a camera and radar sensor(s) to
detect other vehicles. See Radio Frequency
Statement 0419. The following gap is the following time (or
distance) between your vehicle and a vehicle
detected directly ahead in your path,
moving in the same direction. If no vehicle
is detected in your path, ACC works like
regular cruise control.
If a vehicle is detected in your path, ACC can
apply acceleration or limited, moderate
braking to maintain the selected following
gap. To disengage ACC, apply the brake.
If ACC is controlling the vehicle speed when
the Traction Control System (TCS) or
StabiliTrak/Electronic Stability Control (ESC)
system activates, ACC may automatically
disengage. See
Traction Control/Electronic
Stability Control 0225. When road
conditions allow ACC to be safely used, ACC
can be turned back on.
Disabling the TCS or StabiliTrak/ESC system
will disengage and prevent engagement
of ACC.
ACC can reduce the need for you to
frequently brake and accelerate, especially
when used on expressways, freeways, and
interstate highways. When used on other
roads, you may need to take over the
control of braking or acceleration more
often.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 5/16/22
Driving and Operating 237
{Warning
ACC has limited braking ability and may
not have time to slow the vehicle down
enough to avoid a collision with another
vehicle you are following. This can occur
when vehicles suddenly slow or stop
ahead, or enter your lane. Also see
“Alerting the Driver”later in this section.
Complete attention is always required
while driving and you should be ready to
take action and apply the brakes. See
Defensive Driving 0196.
{Warning
ACC will not detect or brake for children,
pedestrians, animals, or other objects.
Do not use ACC when:
.On winding and hilly roads or when
the sensors are blocked by snow, ice,
or dirt. The system may not detect a
vehicle ahead. Keep the entire front of
the vehicle clean.
.Visibility is poor due to rain, snow,
fog, dirt, insect residue, or dust; when
other foreign objects obscure the
(Continued)
Warning (Continued)
camera and/or radar; or when the
vehicle in front or oncoming traffic
causes additional environmental
obstructions, such as road spray. ACC
performance is limited under these
conditions.
.On slippery roads where fast changes
in tire traction can cause excessive
wheel slip.
J:Press to turn the system on or off. The
indicator turns white on the instrument
cluster when ACC is turned on. RES+ :
Press briefly to resume the previous
set speed or to increase vehicle speed if ACC
is already activated. To increase speed by
about 1 km/h (1 mph), press RES+ briefly. To
increase speed to the next 5 km/h (5 mph)
mark on the speedometer, hold RES+.
SET– :Press briefly to set the speed and
activate ACC or to decrease vehicle speed if
ACC is already activated. To decrease speed
by about 1 km/h (1 mph), press SET– briefly.
To decrease speed to the next 5 km/h
(5 mph) mark on the speedometer,
hold SET–.
*: Press to disengage ACC without erasing
the selected set speed.
[: Press to select a following gap setting
for ACC of Far, Medium, or Near.
The speedometer reading can be displayed
in either English or metric units. See
Instrument Cluster (Base Level) 0102 or
Instrument Cluster (Uplevel) 0104. The
increment value used depends on the units
displayed.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 5/16/22
238 Driving and Operating
Switching Between ACC and Regular Cruise
Control
To switch between ACC and regular cruise
control, press and hold
*. A Driver
Information Display (DIC) message displays.
See Vehicle Messages 0132.
ACC Indicator
(Base Level)ACC Indicator (Uplevel)
Regular Cruise Control Indicator
When ACC is engaged, a green
oor\
indicator will be lit on the instrument cluster
and the following gap will be displayed.
When the regular cruise control is engaged, a green
Jindicator will be lit on the
instrument cluster; the following gap will
not display.
When the vehicle is turned on, the cruise
control mode will be set to the last mode
used before the vehicle was turned off.
{Warning
Always check the cruise control indicator
on the instrument cluster to determine
which mode cruise control is in before
using the feature. If ACC is not active, the
vehicle will not automatically brake for
other vehicles, which could cause a crash
if the brakes are not applied manually.
You and others could be seriously injured
or killed.
Setting Adaptive Cruise Control
If
Jis on when not in use, it could get
pressed and go into ACC when not desired.
Keep
Joff when cruise is not being used.
Select the set speed desired for ACC. This is
the vehicle speed when no vehicle is
detected in your path. While the vehicle is moving, ACC will not set
at a speed below a minimum speed,
although it can be resumed. If equipped
with Super Cruise, this minimum speed is
5 km/h (3 mph), otherwise, it is 25 km/h
(15 mph). The minimum allowable set speed
is 25 km/h (15 mph).
To set ACC while moving:
1. Press
J.
2. Get up to the desired speed.
3. Press and release SET–.
4. Remove foot from the accelerator pedal.
After ACC is set, it may immediately apply
the brakes if a vehicle ahead is detected
closer than the selected following gap.
ACC can also be set while the vehicle is
stopped if ACC is on and the brake pedal is
applied.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 5/16/22
Driving and Operating 239
The ACC indicator displays on the
instrument cluster and Head-Up Display
(HUD), if equipped. When ACC is turned on,
the indicator will be lit white. When ACC is
engaged, the indicator will be lit green.
Be mindful of speed limits, surrounding
traffic speeds, and weather conditions when
selecting the set speed.
Resuming a Set Speed
If the ACC is set at a desired speed and then
the brakes are applied, ACC is disengaged
without erasing the set speed from memory.
To begin using ACC again, press RES+ up
briefly.
.If the vehicle is moving more than 5 km/h
(3 mph), it returns to the previous set
speed.
.If the vehicle is stopped with the brake
pedal applied, press RES+ and release the
brake pedal. ACC will hold the vehicle
until RES+ or the accelerator pedal is
pressed.
A green ACC indicator and the set speed
display on the instrument cluster. The
vehicle ahead indicator may be flashing if a
vehicle ahead was present and moved. See
“Approaching and Following a Vehicle” later
in this section. Once ACC has resumed, the vehicle speed
will increase to the set speed under the
following conditions:
.There is no vehicle ahead.
.The vehicle ahead is beyond the selected
following gap.
.The vehicle speed is not being limited
because of a sharp turn.
Increasing Speed While ACC Is at a Set Speed
If ACC is already activated, do one of the
following:
.Use the accelerator to get to the higher
speed. Briefly press and release SET– and
release the accelerator pedal. The vehicle
will now cruise at the higher speed.
When the accelerator pedal is pressed,
ACC will not brake because it is
overridden. While overridden, the ACC
indicator will turn blue on the instrument
cluster and Head-Up Display (HUD),
if equipped.
.Press and hold RES+ until the desired set
speed is displayed, then release it.
.To increase vehicle speed in smaller
increments, press RES+ briefly. For each
press, the vehicle goes about 1 km/h
(1 mph) faster.
.To increase vehicle speed in larger
increments, hold RES+. While holding
RES+, the vehicle speed increases to the
next 5 km/h (5 mph) step, then continues
to increase by 5 km/h (5 mph) at a time.
The set speed can also be increased while
the vehicle is stopped.
.If stopped with the brake pedal applied,
press RES+ until the desired set speed is
displayed.
.If ACC is holding the vehicle at a stop and
there is another vehicle directly ahead,
pressing RES+ will increase the set speed.
.Pressing RES+ when there is no longer a
vehicle ahead or the vehicle ahead is
pulling away and the brake is not applied
with cause the ACC to resume.
When it is determined that there is no
vehicle ahead or the vehicle ahead is beyond
the selected following gap, then the vehicle
speed will increase to the set speed.
Reducing Speed While ACC Is at a Set Speed
If ACC is already activated, do one of the
following:
.Use the brake to get to the desired lower
speed. Release the brake and press SET–.
The vehicle will now cruise at the lower
speed.