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Driving and Operating 219
*:Press to disengage ACC without erasing
the selected set speed. Press and hold to
switch between ACC and regular cruise
control. See “Switching Between ACC and
Regular Cruise Control” later in this section.
[:Press to cycle through the three
following gap settings for ACC: Far, Medium,
or Near. See “Selecting the Follow Distance
Gap” later in this section.
The speedometer reading can be displayed
in either English or metric units. See Settings
0 166. The increment value used depends on
the units displayed.
Switching Between ACC and Regular Cruise
Control
To switch between ACC and regular cruise
control, press and hold
*. A message is
briefly displayed in the Driver Information
Center (DIC). See Vehicle Messages 0135.
ACC IndicatorRegular Cruise Control
Indicator When ACC is the selected cruise control
mode and is activated, a green
\ACC
indicator light is displayed in the instrument
cluster and the following gap is displayed.
When regular cruise control is the selected
cruise control mode and is activated, a green
Jcruise control indicator light is displayed
in the instrument cluster, however the
following gap is not displayed.
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 ACC is on but not engaged, the
thumbwheel could be pressed to
−SET or
+RES and engage ACC when not desired.
Keep ACC off when it is not being used.
Press
5to turn off ACC.
The set speed is the vehicle speed when
another vehicle is not detected in your path.
ACC cannot be set below the minimum
allowable cruise speed. For vehicles that are
not equipped with Super Cruise, the
minimum allowable ACC cruise speed is
25 km/h (15 mph). For vehicles equipped with
Super Cruise, the minimum allowable ACC
cruise speed is 5 km/h (3 mph).
To set the ACC cruise speed while moving: 1. Press
5.
2. Accelerate to the desired speed.
3. Briefly press the thumbwheel down to –SET and release it.
4. Gently remove your foot from the accelerator pedal.
After the ACC cruise speed is set, ACC may
immediately apply the brakes if it detects a
vehicle ahead that is closer than the
selected following gap.
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220 Driving and Operating
The ACC cruise speed can be set while the
vehicle is stopped if ACC is on and the brake
pedal is applied.
The ACC indicator light is displayed in the
instrument cluster and the Head-Up Display
(HUD), if equipped. When ACC is on but not
engaged, the ACC indicator light is lit white.
When ACC is on and is engaged, the ACC
indicator light is lit green.
Always pay attention to the speed limit,
surrounding traffic speeds, and weather
conditions when selecting the set speed.
Resuming a Set Speed
If ACC is engaged at a set speed and then
the brakes are applied, ACC is disengaged
without erasing the set speed from memory.
To resume ACC, briefly press the
thumbwheel up to +RES and release it.
.If the vehicle is moving more than 5 km/h
(3 mph), the vehicle accelerates to resume
the previous set speed.
.If the vehicle is stopped with the brake
pedal applied, briefly press and release
the thumbwheel up to +RES and then
release the brake pedal. ACC will hold the
vehicle until +RES or the accelerator pedal
is pressed.
When ACC is active, the set speed value and
the ACC indicator light are displayed green
in the instrument cluster. The vehicle ahead
indicator may repeatedly flash if a vehicle
ahead was present and then moved. See
“Approaching and Following a Vehicle” later
in this section.
If ACC is active, ACC will accelerate the
vehicle 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 pedal to reach the
desired cruise speed. Briefly press and
release the thumbwheel down to –SETand then 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 ACC is overridden, the
ACC indicator light will turn blue in the
instrument cluster and in the HUD,
if equipped.
.Press and hold the thumbwheel up to
+RES until the desired set speed is
displayed, then release it.
.To increase the vehicle speed in smaller
increments, briefly press and release the
thumbwheel up to +RES. For each press,
the vehicle speed increases by about
1 km/h (1 mph).
.To increase the vehicle speed in larger
increments, press and hold the
thumbwheel up to +RES, and then release
it when the desired set speed is reached.
While holding +RES, the vehicle speed
increases to the next 5 km/h (5 mph)
increment then continues to increase by
5 km/h (5 mph) increments until the
thumbwheel is released.
The set speed can also be increased while
the vehicle is stopped.
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.If stopped and with the brake pedal
applied, press the thumbwheel up to +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 and holding the thumbwheel up
to +RES will increase the set speed.
.Pressing +RES will automatically resume
ACC when there is no longer a vehicle
ahead or the vehicle ahead is pulling
away and the brake pedal is not applied.
When the ACC system determines that there
is no vehicle ahead, or the vehicle ahead is
beyond the selected following gap, the
vehicle will accelerate to resume the ACC set
speed.
Reducing Speed While ACC Is at a Set Speed
If ACC is already activated, do one of the
following:
.Apply the brake pedal to reduce the
vehicle speed to the desired lower cruise
speed. When the desired cruise speed is
reached, remove your foot from the brake
pedal and briefly press the thumbwheel
down to –SET. The vehicle will now cruise
at the lower set speed.
.Press and hold the thumbwheel down to
–SET until the desired lower cruise speed
is reached, then release it.
.To decrease the vehicle speed in smaller
increments, briefly press and release the
thumbwheel down to –SET. For each
press, the vehicle speed decreases by
about 1 km/h or (1 mph).
.To decrease the vehicle speed in larger
increments, press and hold the
thumbwheel down to –SET and then
release it when the desired lower set
speed is reached. While holding the
thumbwheel down to –SET, the vehicle
speed decreases to the next 5 km/h
(5 mph) increment, then continues to
decrease by 5 km/h (5 mph) increments
until the thumbwheel is released.
The set speed can also be decreased while
the vehicle is stopped. When the vehicle is
at a stop with the brake pedal applied, press
or hold the thumbwheel down to –SET until
the desired set speed is displayed, then
release it. Selecting the Follow Distance Gap
When a slower moving vehicle is detected
ahead within the selected following gap,
ACC will adjust the vehicle speed and
attempt to maintain the follow distance gap
selected.
To adjust the following gap setting, press[on the steering wheel. Each press
cycles through the three following gap
settings: Far, Medium, or Near.
When pressed, the current gap setting
displays briefly on the instrument cluster or
HUD, if equipped. The gap setting will be
maintained until it is changed.
Far Gap Setting
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Courtesy Gap
You can temporarily increase the follow
distance gap between your vehicle and the
vehicle ahead of you to allow more space
for merging traffic.
.When your vehicle is moving, press and
hold
[on the steering wheel to
temporarily increase the gap distance.
When you release
[, ACC may
accelerate to resume the ACC set speed
while maintaining the normal gap
distance setting.
.When your vehicle is stopped, press and
hold
[to prevent ACC from
automatically resuming the set speed,
which can allow for merging traffic to
merge between your vehicle and the
vehicle ahead of you. When you are
ready to resume ACC, briefly press and
release the thumbwheel up to +RES,
or the apply the accelerator pedal. Alerting the Driver
If ACC is engaged, driver action may be
required when ACC cannot apply sufficient
braking because your vehicle is approaching
a vehicle ahead too quickly.
When this condition occurs, the red collision
alert symbol will flash on the windshield.
Either eight beeps will sound from the front,
or both sides of the Safety Alert Seat will
pulse five times. To view available settings
from the infotainment screen, touch Settings
> Vehicle > Collision/Detection Systems.
See
Defensive Driving 0183.
Approaching and Following a Vehicle
The vehicle ahead indicator light is displayed
in the instrument cluster and the HUD,
if equipped. It only displays when a vehicle
is detected in your vehicle’s path and is
moving in the same direction. If the vehicle
ahead indicator light does not appear in the
instrument cluster, then ACC will not
respond to, or brake for, vehicles ahead.
While ACC is active, ACC will automatically
adjust your vehicle’s speed to follow a
detected vehicle ahead according to the
selected following gap setting. ACC may
decrease your vehicle’s cruise speed when
following a detected vehicle ahead that is
traveling slower than your ACC set speed.
ACC may apply limited braking, if necessary.
When ACC automatic braking is active, the
brake lamps will turn on. The automatic
braking may feel or sound different than if
the brakes were applied manually. This is
normal.
Passing a Vehicle While Using ACC
If the set speed is high enough, and the left
turn signal is used to pass a vehicle ahead
in the selected following gap, ACC may
assist by gradually accelerating the vehicle
prior to the lane change.
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Driving and Operating 225
attention is on the road ahead, ACC
automatically resumes. For more
information, see“Attention to the Road" in
Super Cruise 0227. If necessary, briefly press
and release the thumbwheel up to +RES or
apply the accelerator pedal to resume ACC.
If stopped for more than two minutes, or if
the driver door is opened and the driver
seat belt is unbuckled, the ACC system
automatically applies the Electric Parking
Brake (EPB) to hold the vehicle. The EPB
light will turn on. To release the EPB, press
the accelerator pedal. See Electric Parking
Brake 0205.
A DIC warning message may display
indicating to shift to P (Park) before exiting
the vehicle.
{Warning
If ACC has stopped the vehicle, and if ACC
is disengaged, turned off, or canceled, the
vehicle will no longer be held at a stop.
The vehicle can move. When ACC is
holding the vehicle at a stop, always be
prepared to manually apply the brakes.
{Warning
Leaving the vehicle without placing it in
P (Park) can be dangerous. Do not leave
the vehicle while it is being held at a
stop by ACC. Always place the vehicle in
P (Park) and turn it off before leaving the
vehicle.
ACC Override
If you apply the accelerator pedal while ACC
is engaged, the ACC indicator light turns
blue in the instrument cluster and the HUD,
if equipped, indicating that ACC braking will
not occur. ACC will resume operation when
the accelerator pedal is released.
{Warning
The ACC will not automatically apply the
brakes if your foot is resting on the
accelerator pedal. You could crash into a
vehicle ahead of you. Curves in the Road
{Warning
On curves, ACC may not detect a vehicle
ahead in your lane. You could be startled
if the vehicle accelerates up to the set
speed, especially when following a vehicle
exiting or entering exit ramps. You could
lose control of the vehicle or crash. Do
not use ACC while driving on an entrance
or exit ramp. Always be ready to use the
brakes if necessary.
{Warning
On curves, ACC may respond to a vehicle
in another lane, or may not have time to
react to a vehicle in your lane. You could
crash into a vehicle ahead of you, or lose
control of your vehicle. Give extra
attention in curves and be ready to use
the brakes if necessary. Select an
appropriate speed while driving in curves.
ACC may operate differently when the
vehicle approaches a sharp curve in the road
ahead. If the ACC system detects that a
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Towing with ACC
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.
When ACC is used with vehicles equipped
with an aftermarket trailer brake controller,
disengage ACC before applying the manual
trailer brake. ACC will not automatically
disengage when the manual trailer brake is
applied.
ACC may be used when towing a trailer if
the trailer is within the GM-approved
allowable size and weight limits. SeeTrailer
Towing 0297.
When towing a trailer with ACC, it is
important to properly set the Trailer Gain.
See “Integrated Trailer Brake Control
System” inTowing Equipment 0301 for
information about the 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 0209. Disengaging ACC
There are four ways to disengage ACC:
.Press*.
.Lightly apply the brake pedal.
.Apply the Regen on Demand steering
wheel paddle, if equipped.
.Press5.
Erasing Speed Memory
The ACC set speed is erased from memory if
5is pressed or if the vehicle is turned off.
Weather Conditions Affecting ACC
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.
.Do not install objects on top of the
vehicle that overhang and may obstruct
the front camera, such as a canoe, kayak,
or other items that can be transported on
top of the vehicle.
.Do not modify the hood, headlamps,
or fog lamps, as this may limit the
camera’s ability to detect an object. Cleaning the Sensing System
The camera sensor on the windshield behind
the rearview mirror, and the sensors on the
front of the vehicle can become blocked by
snow, ice, dirt, mud, or other debris. These
areas must be clean for ACC to operate
properly. For proper cleaning instructions,
see the section
“Washing the Vehicle” in
Exterior Care 0379.
If driving conditions temporarily prevent
normal and safe ACC operation, regular
cruise control may be available. See
“Switching Between ACC and Regular Cruise
Control” previously in this section. Always
consider driving conditions before using
either cruise control system.
Super Cruise
If equipped, Super Cruise can steer to
maintain lane position under certain
conditions on Super Cruise-enabled roads.
Super Cruise can also steer to perform a
lane change under certain conditions on
Super Cruise-enabled roads.
A lane change can be initiated by the driver
using the turn signal lever.
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Driving and Operating 229
{Warning
Some state and local laws may require
hands to be kept on the steering wheel
at all times. Only remove your hands
from the steering wheel if Super Cruise is
engaged, it is safe to do so, and it is
permitted by state and local laws.
{Warning
Failure to supervise the driving task and
to respond appropriately, even while
Super Cruise is operating, can cause a
crash. Super Cruise may not respond as
you would to all driving situations and
may not maintain lane position under all
conditions.
It is extremely important to pay
attention to the operation of the vehicle,
even while using Super Cruise. Do not
use a hand-held device while driving,
even with Super Cruise engaged. To
prevent serious injury or death:
.Always remain properly seated in the
driver seat with your seat belt
fastened.(Continued)
Warning (Continued)
.Never remove your hands from the
steering wheel when Super Cruise is
not operating.
.Always make sure traffic conditions
are safe before using Super Cruise.
.Always keep the entire vehicle and the
sensors clean. Sensors are on the
front, sides, and rear of the vehicle.
.Always observe posted speed limits.
Only use Super Cruise at or below the
posted speed limit.
Super Cruise should not be used in
complex or uncertain driving conditions,
including:
.Not in construction zones.
.Not when approaching or exiting toll
plazas.
.Not when approaching an intersection
that is controlled with a traffic light,
stop sign, or other traffic control
device. (Continued)
Warning (Continued)
.Not when lane markings are not
present or cannot be detected. For
example, there is too much glare,
weather conditions are poor, or lanes
are poorly marked.
.Not on slippery or icy roads.
.Not in adverse weather conditions,
including rain, sleet, fog, ice, or snow.
.Not on winding or hilly roads.
.Not for city driving.
.Not during heavy or emergency
braking.
.Not on a road shoulder, service drive,
or under an elevated freeway.
.Not when towing a trailer that does
not meet GM approved guidelines.
.Not in a highway exit lane.
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230 Driving and Operating
When Super Cruise is Available
Super Cruise Indicator
Super Cruise is designed to operate
only when:
.ACC is on. See Adaptive Cruise Control
(Advanced) 0217.
.Teen Driver is not active.
.The GPS detects the vehicle is on a
compatible road.
.Both the camera and the radar sensors
are functioning and not covered,
obstructed, or damaged.
.The Driver Attention System (DAS) detects
the driver's head and eyes are directed
toward the road ahead.
.The lane markings are clearly visible and
able to be detected by the system.
.If equipped with Air Suspension, Super
Cruise allowable ride height is selected. Super Cruise may be unavailable if Super
Cruise detects that the outside air
temperature is very cold.
Poor Conditions
Poor Conditions
Using Super Cruise
{Warning
Super Cruise may not begin steering
immediately, even when Super Cruise is
available and
Zhas been pressed. To
prevent serious injury or death, only
remove your hands from the steering
wheel if the steering wheel light bar, the
Super Cruise light
Z, and the Adaptive
Cruise Control (ACC) light
\are green.