2023 CHEVROLET TAHOE ECO mode

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 5/16/22
194 Driving and Operating
Driving and Operating
Driving Information
Driving for Better Fuel Economy . . . . . . . 195
Distracted Driving . . . . . . . . . . . . . . . . . . . . . 195
Defensive Driving . . . . . . . . . . . . . . . . . . . . . . 196
Impaired Driving . . . . . . . . . . . . . . . . . . . . . . 196
Control of a Vehicle . . . . . . . . . . . . . . . . . . . 196
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 197
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . 198
Off-Road Driving . . . . . . . . . . . . . . . . . . . . . . . 198
Driving on Wet Roads . . . . . . . . . . . . . . . . . 201
Hill and Mountain Roads . . . . . . . . . . . . . . 202
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . 203
If the Vehicle Is Stuck . . . . . . . . . . . . . . . . . 204
Vehicle Load Limits . . . . . . . . . . . . . . . . . . . . 205
Starting and Operating
New Vehicle Break-In . . . . . . . . . . . . . . . . . . 208
Ignition Positions . . . . . . . . . . . . . . . . . . . . . 209
Starting the Engine . . . . . . . . . . . . . . . . . . . . 210
Stop/Start System . . . . . . . . . . . . . . . . . . . . . 211
Retained Accessory Power (RAP) . . . . . . . 212
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 212
Shifting out of Park . . . . . . . . . . . . . . . . . . . . 213
Parking over Things That Burn . . . . . . . . . 214
Dynamic Fuel Management . . . . . . . . . . . . 214
Extended Parking . . . . . . . . . . . . . . . . . . . . . . 214
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . . . . . . . . . . . 214
Running the Vehicle While Parked . . . . . 215
Automatic Transmission
Automatic Transmission . . . . . . . . . . . . . . . 215
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . 218
Drive Systems
Four-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . 219
Brakes
Electric Brake Boost . . . . . . . . . . . . . . . . . . . . 223
Antilock Brake System (ABS) . . . . . . . . . . . 223
Electric Parking Brake . . . . . . . . . . . . . . . . . . 223
Brake Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Hill Start Assist (HSA) . . . . . . . . . . . . . . . . . 225
Ride Control Systems
Traction Control/Electronic StabilityControl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Hill Descent Control (HDC) . . . . . . . . . . . . . 227
Driver Mode Control . . . . . . . . . . . . . . . . . . . 228
Magnetic Ride Control . . . . . . . . . . . . . . . . . 231
Locking Rear Axle . . . . . . . . . . . . . . . . . . . . . . 231
Four Corner Air Suspension System . . . . 231
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . 234
Adaptive Cruise Control (Advanced) . . . 236
Super Cruise . . . . . . . . . . . . . . . . . . . . . . . . . . 246
Driver Assistance Systems
Driver Assistance Systems . . . . . . . . . . . . . 260
Assistance Systems for Parking or Backing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Rear Vision Camera (RVC) . . . . . . . . . . . . . 262
Surround Vision System . . . . . . . . . . . . . . . 263
Park Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
Automatic Parking Assist (APA) . . . . . . . . 270
Reverse Automatic Braking (RAB) . . . . . . 272
Rear Pedestrian Alert . . . . . . . . . . . . . . . . . . 273
Rear Cross Traffic Alert (RCTA) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
Assistance Systems for Driving . . . . . . . . 275
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
Automatic Emergency Braking (AEB) . . . 277
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Side Blind Zone Alert (SBZA) . . . . . . . . . . 280
Lane Change Alert (LCA) . . . . . . . . . . . . . . . 280
Lane Keep Assist (LKA) . . . . . . . . . . . . . . . . 283
Fuel
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 285
Recommended Fuel (5.3L Engine) . . . . . . 285
Recommended Fuel (6.2L Engine) . . . . . . 285
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . 285
Fuels in Foreign Countries . . . . . . . . . . . . . 286
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . 286
Filling the Tank . . . . . . . . . . . . . . . . . . . . . . . 286

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 5/16/22
Driving and Operating 209
On new vehicles, the various mechanical and
electrical systems experience a“break-in”
period during the first 6 400 km (4,000 mi)
of routine driving. As the vehicle is driven,
the mechanical systems adjust to provide
optimal fuel economy and transmission shift
performance.
Electrical systems will adapt and calibrate
during the break-in period. A one-time
occurrence of clicks and similar vehicle
noises is normal during this process.
Normal driving charges the vehicle’s battery
to achieve the best operation of the vehicle,
including fuel economy and the Stop/Start
System. See Stop/Start System 0211.Ignition Positions
Vehicles equipped with Keyless Access have
pushbutton starting.
The Remote Key must be in the vehicle for
the system to operate. If the pushbutton
start is not working, the vehicle may be
near a strong radio antenna signal causing
interference to the Keyless Access system.
See Remote Key Operation 08.
To shift out of P (Park), the ignition must be
on or in Service Mode, and the brake pedal
must be applied.
{Warning
Turning off the vehicle while moving may
cause loss of power assist in the brake
and steering systems and disable the
airbags. While driving, only shut the
vehicle off in an emergency.
Stopping the Engine/LOCK/OFF (No Indicator
Lights) : When the vehicle is stopped, press
ENGINE START/STOP once to turn the
engine off.
If the vehicle is in P (Park), the ignition will
turn off, and Retained Accessory Power (RAP)
will remain active. See Retained Accessory
Power (RAP) 0212.
If the vehicle is not in P (Park), the ignition
will return to accessory mode and display
the message SHIFT TO PARK in the Driver
Information Center (DIC). When the vehicle is
shifted into P (Park), the ignition system will
turn off.
The vehicle may have an electric steering
column lock. The lock is activated when the
ignition is turned off and either front door is
opened. A sound may be heard as the lock
actuates or releases. The steering column
lock may not release with the wheels turned
off center. If this happens, the vehicle may

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 5/16/22
210 Driving and Operating
not start. Move the steering wheel from left
to right while attempting to start the
vehicle. If this does not work, the vehicle
needs service.
If the vehicle must be shut off in an
emergency:1. Brake using a firm and steady pressure. Do not pump the brakes repeatedly. This
may deplete power assist, requiring
increased brake pedal force.
2. Shift the vehicle to N (Neutral). This can be done while the vehicle is moving.
After shifting to N (Neutral), firmly apply
the brakes and steer the vehicle to a
safe location.
3. Come to a complete stop. Hold the brake pedal down and shift to P (Park). The
vehicle must be in P (Park) to turn the
ignition off.
4. Continue to hold the brake pedal down.
5. Set the parking brake. See Electric
Parking Brake 0223.
6. Press ENGINE START/STOP once to turn the ignition off.
7. Release the brake pedal. If the vehicle cannot be pulled over, and
must be shut off while driving, press and
hold ENGINE START/STOP for longer than
two seconds, or press twice in five seconds.
Accessory Mode (Amber Indicator Light) :
This mode allows some electrical accessories
to be used when the engine is off.
With the ignition off, pressing the button
one time without the brake pedal applied
will place the ignition system in
accessory mode.
The ignition will switch from accessory
mode to off after five minutes to prevent
battery rundown.
ON/RUN/START (Green Indicator Light) :
This
mode is for driving and starting. With the
ignition off, and the brake pedal applied,
pressing the button once will turn the
ignition on. Once engine cranking begins,
release the button. Engine cranking will
continue until the engine starts. See Starting
the Engine 0210.
Service Mode
This power mode is available for service and
diagnostics, and to verify the proper
operation of the malfunction indicator lamp
as may be required for emission inspection
purposes. With the vehicle off, and the brake pedal not applied, pressing and
holding the button for more than
five seconds will place the vehicle in Service
Mode. The instruments and audio systems
will operate as they do when the ignition is
on, but the vehicle will not be able to be
driven. The engine will not start in Service
Mode. Press the button again to turn the
ignition off.
Starting the Engine
If the vehicle has a diesel engine, see the
Duramax diesel supplement.
Caution
If you add electrical parts or accessories,
you could change the way the engine
operates. Any resulting damage would
not be covered by the vehicle warranty.
See
Add-On Electrical Equipment 0316.
Shift the vehicle into P (Park) or N (Neutral).
To restart the engine when the vehicle is
already moving, use N (Neutral) only.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 5/16/22
Driving and Operating 221
for the shift to occur. After this time, a
graphic in the instrument cluster will
indicate that the transfer case is in 4
n.
Caution
Shifting the transmission into gear before
the requested mode indicator light has
stopped flashing could damage the
transfer case.
If the transmission is not shifted into
N (Neutral) or the vehicle has not slowed to
5 km/h (3 mph) within 20 seconds, the
transfer case will remain in its original state.
This will be indicated in the instrument
cluster.
With the vehicle moving less than
5 km/h (3 mph) and the transmission in
N (Neutral), attempt the shift again.
Shifting Out of 4
n
1. The vehicle must be stopped or moving less than 5 km/h (3 mph) with the
transmission in N (Neutral) and the
ignition on. It is best for the vehicle to
be moving 1.6 to 3.2 km/h (1 to 2 mph).
2. Press 4
m, AUTO, or 2m. The actual 4x4
shift request is only made after the
button is released. The 4x4 graphic will remain flashing until the shift request
has completed. A DIC message displays
to indicate the state of the request.
Once the 4x4 shift has completed, the
DIC message disappears, the 4x4 graphic
stops flashing, and the current setting is
indicated.
If vehicle speed is higher when shift
request occurs, a DIC message displays.
Reduce vehicle speed.
If the transmission is not in N (Neutral)
when shift request occurs, DIC messages will
display. The vehicle will allow 20 seconds for
this shift to occur. After this time, a graphic
in the instrument cluster will indicate that
the transfer case is in 4
n.
Caution
Shifting the transmission into gear before
the requested mode indicator light has
stopped flashing could damage the
transfer case.
If the transmission is not shifted into
N (Neutral) or the vehicle has not slowed to
5 km/h (3 mph) within 20 seconds, the
transfer case will remain in its original state.
This will be indicated in the instrument
cluster. With the vehicle moving less than 5 km/h
(3 mph), and the transmission in N (Neutral),
attempt the shift again.
Shifting Into N (Neutral)
To shift into N (Neutral):
1. Start the vehicle.
2. Shift the transmission to N (Neutral).
3. Shift the transfer case to 2
m.
4. Apply the parking brake and/or brake pedal.
5. Press 2
mfive times in 10 seconds until
the N (Neutral) graphic starts flashing in
the instrument cluster. When the shift is
complete, the graphic stops flashing.
If the parking brake and/or brake pedal
is not applied within 20 seconds, the
transfer case will remain in the original
state.
6. If the transmission is not shifted into N (Neutral) or the vehicle has not slowed
to 5 km/h (3 mph) within 20 seconds,
the transfer case will remain in its
original state. This will be indicated in
the instrument cluster.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 5/16/22
Driving and Operating 229
compromise the acceleration on dry asphalt.
This feature is not intended for use when
the vehicle is stuck in sand, mud, ice, snow,
or gravel. If the vehicle becomes stuck, seeIf
the Vehicle Is Stuck 0204.
7Off-Road Mode : Use this mode for
off-road recreational driving. Off-Road Mode
should be used to improve driving at
moderate speeds, on grass, gravel, dirt,
unpaved roads, or snow-covered roads. The
accelerator pedal is tuned for off-road use.
This mode modifies pedal mapping, ride
height, and Traction Control System (TCS)
performance. For more information on
off-road driving, see Off-Road Driving0198.
_Tow/Haul Mode : Use this mode
when hauling heavy loads to provide
increased performance and vehicle control.
Tow/Haul Mode adjusts the transmission
shift pattern, steering, and Electronic
Stability Control (ESC) performance.
If the vehicle is turned off while in Tow/
Haul Mode and then restarted within four
hours or less, it will remain active.
Otherwise, the vehicle will start in
Normal Mode. If the vehicle has a diesel engine, exhaust
braking is automatically activated when
Tow/Haul Mode is selected. It maintains
vehicle speed by automatically
implementing a shift pattern that uses the
engine and the transmission to slow the
vehicle. The system will command
downshifts and use the turbo charger on the
engine to reduce vehicle speed when the
brake is applied. The normal Tow/Haul shift
pattern will return once the vehicle is on a
low grade or when the accelerator pedal is
pressed.
For more information, see
Towing
Equipment 0296 orTransporting a Disabled
Vehicle 0386.
If equipped, select Terrain Mode by
pressing the
gbelow the 4mtransfer
case button.
gTerrain Mode : Use this mode when
traveling on very rough roads at very low
speeds, such as a two-track or heavily rutted
road. This mode can also be used for pulling
a boat out of the water on a trailer. When
in Terrain Mode, the vehicle shifts
automatically, but will hold a lower gear
longer to maximize engine torque. This
mode has a unique pedal map and
transmission shift pattern for better control
at lower speeds and over rough terrain. This
mode modifies accelerator pedal mapping,
transmission shift pattern, ride height, and
electronic Limited Slip Differential (eLSD).
When the vehicle comes to a stop on an
upward grade, automatic vehicle hold is
engaged until the driver presses the
accelerator pedal. Stop/Start and cruise
control are disabled in Terrain Mode.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16416971) - 2023 - CRC - 5/16/22
230 Driving and Operating
Active Braking during lift throttle will be
engaged. This feature automatically applies
light braking to simulate heavy engine
braking of four-wheel-dive low. It also
applies light braking in D (Drive) until the
vehicle is at idle speeds. In L1 and L2 light
braking will typically bring the vehicle to a
stop. Active Braking during lift throttle also
reduces trailer braking.
Terrain Mode automatically exits to Normal
Mode if the brake temperatures become too
hot, electronic parking brake becomes
inoperable, or the vehicle cannot perform
braking or vehicle hold.
For more information on off-road driving,
seeOff-Road Driving 0198 and
Hill and Mountain Roads 0202. Terrain Mode Drive
Select Expected Vehicle Behavior Ideal Terrain
Drive (L3-Lx) Minor deceleration when off
throttle and mild ability to
modulate throttle; mimics
performance of 4
nwithout torque
multiplication. Grassy fields,
mild two tracks,
rutted roads,
large rolling hills
L2 Moderate deceleration when off
throttle and moderate ability to
modulate throttle; brings vehicle to
a stop in most cases. Mild rock crawling,
heavy ruts,
short, steeper grades
L1 Significant deceleration when off
throttle and significant ability to
modulate throttle; brings vehicle to
a stop in most cases. Rock crawling downhill
Vehicle Hold Features
.When the vehicle comes to a stop on an
incline grade in forward gear or on a
decline grade in reverse gear, Vehicle
Hold is engaged until the accelerator
pedal is pressed.
.When the vehicle is in forward gear on a
decline, the vehicle will creep down the
hill when the brake pedal is released without pressing the accelerator pedal.
The vehicle will also creep forward on flat
ground.
.If the driver seat belt is removed and the
driver door is opened while the vehicle is
being held, Electric Parking Brake (EPB) is
engaged.
.EPB engages if the vehicle is held for an
extended period.

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 245
Other Vehicle Lane Changes
ACC will not detect a vehicle ahead until it
is completely in the lane. The brakes may
need to be manually applied.
Objects Not Directly in Front of Your Vehicle
The detection of objects in front of the
vehicle may not be possible if:
.The vehicle or object ahead is not within
your lane.
.The vehicle ahead is shifted, not centered,
or is shifted to one side of the lane.
Driving in Narrow Lanes
Vehicles in adjacent traffic lanes or roadside
objects may be incorrectly detected when
located along the roadway. Do Not Use ACC on Hills
Do not use ACC when driving on steep hills
as ACC may not detect a vehicle ahead.
Towing with ACC
Towing a trailer with ACC is not
recommended with an aftermarket brake
controller. Aftermarket brake controllers may
not integrate properly with the ACC system.
If equipped when towing a trailer, ACC
driving characteristics such as following gap,
acceleration rates and braking rates may be
modified to provide a better towing
experience.
ACC may be used when towing a trailer
when trailer attached is within GM-approved
allowable size and weight limits. See
Trailer
Towing 0292. When towing a trailer with ACC, it is
important to properly set the Trailer Gain.
See
“Integrated Trailer Brake Control
System” inTowing Equipment 0296 for
Trailer Gain Adjustment Procedure.
Use Tow/Haul mode when driving down
steep hills or mountain grades, or when
hauling heavy loads. See Driver Mode
Control 0228.
Disengaging ACC
There are three ways to disengage ACC:
.Step lightly on the brake pedal.
.Press*.
.PressJ.
Erasing Speed Memory
The ACC set speed is erased from memory if
Jis pressed or if the ignition is turned off.
Weather Conditions Affecting ACC
System operation may be limited under
snow, heavy rain, or road spray conditions.
Accessory Installations and Vehicle
Modifications
Do not install or place any object around
the front camera windshield area that would
obstruct the front camera view.