cruise control CHEVROLET IMPALA 2018 Owner's Guide

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
Driving and Operating 189
.The Traction Control System
(TCS) or electronic stability
control system has activated or
been disabled.
. There is a fault in the system.
. The radar falsely reports
blockage when driving in a
desert or remote area with no
other vehicles or roadside
objects. A DIC message may
display to indicate that ACC is
temporarily unavailable.
A message indicating that the cruise
is disengaging will appear on the
DIC and the ACC active symbol will
not be displayed when ACC is no
longer active.
Notification to Resume ACC
ACC will maintain a following gap
behind a detected vehicle and slow
your vehicle to a stop behind that
vehicle.
If the stopped vehicle ahead has
driven away and ACC has not been
resumed, the vehicle ahead symbol
will flash as a reminder to check
traffic ahead before proceeding. In addition, three beeps will sound.
See
“Go Notifier” under Collision/
Detection systems in Vehicle
Personalization 0128.
When the vehicle ahead drives
away, press +RES or the
accelerator pedal to resume cruise
control. If stopped for more than
two minutes or if the driver door is
opened, the ACC automatically
applies the Electric Parking Brake
(EPB) to hold the vehicle. The EPB
status light will turn on. See Electric
Parking Brake 0178. To resume
ACC and release the EPB, press
the accelerator pedal. ACC can be
resumed when the vehicle is
travelling greater than 25 km/h
(16 mph).
A DIC warning message may
display indicating to shift to P (Park)
before exiting the vehicle. See
Vehicle Messages 0127.{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 off
the ignition before leaving the
vehicle.
ACC Override
If using the accelerator pedal while
ACC is active, a DIC warning
message will indicate that automatic

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
Driving and Operating 191
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.
Do Not Use ACC on Hills and
When Towing a Trailer
Do not use ACC when driving on
steep hills or when towing a trailer.
ACC will not detect a vehicle in the
lane while driving on steep hills. The
driver will often need to take over
acceleration and braking on steep
hills, especially when towing a
trailer. If the brakes are applied, the
ACC disengages.
Disengaging ACC
There are three ways to
disengage ACC:
.Step lightly on the brake pedal.
. Press
*.
. Press
].
Erasing Speed Memory
The cruise control set speed is
erased from memory if
]is
pressed or if the ignition is
turned off. Cleaning the Sensing System
The radar sensor on the front of the
vehicle can become blocked by
snow, ice, dirt, or mud. These areas
need to be cleaned for ACC to
operate properly.
For cleaning instructions, see
“Washing the Vehicle”
under
Exterior Care 0281.
System operation may also be
limited under snow, heavy rain,
or road spray conditions.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
Driving and Operating 195
Turn off RPA when towing a trailer.
To turn the rear parking assist
symbols or guidance lines on or off,
see“Rear Camera” underVehicle
Personalization 0128.
RCTA can also be turned on or off
through vehicle personalization. see
“Collision/Detection Systems” under
Vehicle Personalization 0128.
Assistance Systems for
Driving
If equipped, when driving the
vehicle in a forward gear, Forward
Collision Alert (FCA), Lane
Departure Warning (LDW), Side
Blind Zone Alert (SBZA), Lane
Change Alert (LCA), and/or the
Forward Automatic Braking (FAB)
can help to avoid a crash or reduce
crash damage.
Forward Collision Alert
(FCA) System
If equipped, the FCA system may
help to avoid or reduce the harm
caused by front-end crashes. When approaching a vehicle ahead too
quickly, FCA provides a red flashing
alert on the windshield, and rapidly
beeps. FCA also lights an amber
visual alert if following another
vehicle much too closely.
FCA detects vehicles within a
distance of approximately 60 m
(197 ft) and operates at speeds
above 40 km/h (25 mph). If the
vehicle has Adaptive Cruise Control
(ACC), it can detect vehicles to
distances of approximately 110 m
(360 ft) and operates at all speeds.
See
Adaptive Cruise Control 0184.
{Warning
FCA is a warning system and
does not apply the brakes. When
approaching a slower-moving or
stopped vehicle ahead too rapidly,
or when following a vehicle too
closely, FCA may not provide a
warning with enough time to help
avoid a crash. It also may not
provide any warning at all. FCA
(Continued)
Warning (Continued)
does not warn of pedestrians,
animals, signs, guardrails,
bridges, construction barrels,
or other objects. Be ready to take
action and apply the brakes. See
Defensive Driving0158.
FCA can be disabled with either the
FCA steering wheel control or,
if equipped, through vehicle
personalization. See “Collision/
Detection Systems” underVehicle
Personalization 0128.
Detecting the Vehicle Ahead
FCA warnings will not occur unless
the FCA system detects a vehicle
ahead. When a vehicle is detected,
the vehicle ahead indicator will
display green. Vehicles may not be

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
196 Driving and Operating
detected on curves, highway exit
ramps, or hills, due to poor visibility;
or if a vehicle ahead is partially
blocked by pedestrians or other
objects. FCA will not detect another
vehicle ahead until it is completely
in the driving lane.
{Warning
FCA does not provide a warning
to help avoid a crash, unless it
detects a vehicle. FCA may not
detect a vehicle ahead if the FCA
sensor is blocked by dirt, snow,
or ice, or if the windshield is
damaged. It may also not detect a
vehicle on winding or hilly roads,
or in conditions that can limit
visibility such as fog, rain,
or snow, or if the headlamps or
windshield are not cleaned or in
proper condition. Keep the
windshield, headlamps, and FCA
sensors clean and in good repair.Collision Alert
When your vehicle approaches
another detected vehicle too rapidly,
the red lights will flash on the
windshield. Also, eight rapid
high-pitched beeps will sound from
the front. When this Collision Alert
occurs, the brake system may
prepare for driver braking to occur
more rapidly which can cause a
brief, mild deceleration. Continue to
apply the brake pedal as needed.
Cruise control may be disengaged
when the Collision Alert occurs.
Tailgating Alert
The vehicle ahead indicator will
display amber when you are
following a detected vehicle ahead
much too closely.
Selecting the Alert Timing
The Collision Alert control is on the
steering wheel. Press GAP or
[
to set the FCA timing to Far,
Medium, Near, or on some vehicles,
Off. The first button press shows the
current setting on the DIC.
Additional button presses will
change this setting. The chosen
setting will remain until it is changed
and will affect the timing of both the
Collision Alert and the Tailgating
Alert features. The timing of both
alerts will vary based on vehicle
speed. The faster the vehicle speed,
the farther away the alert will occur.
Consider traffic and weather
conditions when selecting the alert
timing. The range of selectable alert
timing may not be appropriate for all
drivers and driving conditions.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
Driving and Operating 197
If your vehicle is equipped with
Adaptive Cruise Control (ACC),
changing the FCA timing setting
automatically changes the following
gap setting (Far, Medium, or Near).
Unnecessary Alerts
FCA may provide unnecessary
alerts for turning vehicles, vehicles
in other lanes, objects that are not
vehicles, or shadows. These alerts
are normal operation and the
vehicle does not need service.
Cleaning the System
If the FCA system does not seem to
operate properly, cleaning the
outside of the windshield in front of
the camera sensor behind the
rearview mirror, and cleaning the
front of the vehicle where radar
sensors are located, may correct
the issue.
Forward Automatic
Braking (FAB)
If the vehicle has Adaptive Cruise
Control (ACC), it also has FAB.
When the system detects a vehicleahead in your path that is traveling
in the same direction that you may
be about to crash into, it can
automatically brake the vehicle. This
can help avoid or lessen the
severity of crashes when driving in a
forward gear. Depending on the
situation, the vehicle may
automatically brake moderately or
hard. This forward automatic
braking can only occur if a vehicle is
detected. This is shown by the FCA
vehicle ahead indicator being lit.
See
Forward Collision Alert (FCA)
System 0195.
The system works when driving in a
forward gear between 10 km/h
(6 mph) and 180 km/h (112 mph) for
moving vehicles, or between
10 km/h (6 mph) and 55 km/h
(34 mph) for stationary vehicles.
It can detect vehicles up to
approximately 60 m (197 ft).
{Warning
FAB is an emergency crash
preparation feature and is not
designed to avoid crashes. Do
not rely on FAB to brake the
vehicle. FAB will not brake
outside of its operating speed
range and only responds to
detected vehicles.
FAB may not: . Detect a vehicle ahead on
winding or hilly roads.
. Detect all vehicles,
especially vehicles with a
trailer, tractors, muddy
vehicles, etc.
. Detect a vehicle when
weather limits visibility, such
as in fog, rain, or snow.
. Detect a vehicle ahead if it
is partially blocked by
pedestrians or other objects.
(Continued)

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
Driving and Operating 207
.Do not tow a trailer during the
first 800 km (500 mi) to prevent
damage to the engine, axle,
or other parts.
. Then during the first 800 km
(500 mi) of trailer towing, do not
drive over 80 km/h (50 mph) and
do not make starts at full throttle.
. Vehicles can tow in D (Drive).
Shift the transmission to a lower
gear if the transmission shifts
too often under heavy loads and/
or hilly conditions.
. Do not use Adaptive Cruise
Control when towing.
. The Forward Automatic Braking
System should be set to Off
when towing. See Forward
Automatic Braking (FAB) 0197.
. Turn off Parking Assist when
towing.{Warning
When towing a trailer, exhaust
gases may collect at the rear of
the vehicle and enter if the
liftgate, trunk/hatch, or rear-most
window is open.
When towing a trailer:
. Do not drive with the
liftgate, trunk/hatch,
or rear-most window open.
. Fully open the air outlets on
or under the instrument
panel.
. Also adjust the climate
control system to a setting
that brings in only outside
air. See “Climate Control
Systems” in the Index.
For more information about
carbon monoxide, see Engine
Exhaust 0174.
Towing a trailer requires a certain
amount of experience. The
combination you are driving is longer and not as responsive as the
vehicle itself. Get acquainted with
the handling and braking of the rig
before setting out for the open road.
Before starting, check all trailer hitch
parts and attachments, safety
chains, electrical connectors, lamps,
tires, and mirrors. If the trailer has
electric brakes, start the
combination moving and then apply
the trailer brake controller by hand
to be sure the brakes work.
During the trip, check occasionally
to be sure that the load is secure
and the lamps and any trailer
brakes still work.
Following Distance
Stay at least twice as far behind the
vehicle ahead as you would when
driving the vehicle without a trailer.
This can help to avoid heavy
braking and sudden turns.
Passing
More passing distance is needed
when towing a trailer. The
combination will not accelerate as
quickly and is longer so it is

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
Vehicle Care 245
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.Fuses Usage
1 Transmission control module battery
2 Engine control module battery / A/C Clutch
3 A/C clutch
4 Engine control module battery
5 Engine control module/Ignition
6 Front wiper
7 Engine control module ignition
8 Ignition coils –even
9 Ignition coils –odd
10 Engine control module 11 Miscellaneous 1
12 Starter Fuses Usage
13 Transmission control module/Chassis
control module/
Ignition
14 Cabin Coolant pump
17 Body/Ignition 2
18 Battery disconnect unit/Ignition
19 Aeroshutter
20 Transmission auxiliary pump
21 Rear power window
22 Sunroof
23 Adaptive cruise control
24 Front power window
25 Retained accessory power
26 ABS pump
27 Electric parking brake
28 Rear defogger Fuses Usage
29 Passive entry/Passive start
30 Canister vent solenoid
31 Heated seat, driver
32 Body control module 6
33 Heated seat, passenger
34 ABS valve
35 Amplifier
37 Right high-beam headlamp
38 Left high-beam headlamp
41 Vacuum pump
42 Cooling fan high speed
44 Starter 2
45 Cooling fan low speed
46 Cooling fan control
47 Miscellaneous 2
49 Right HID headlamp

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
Index 333
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 215
Accessory Power . . . . . . . . . . . . . . . 172
Adaptive Cruise Control . . . . . . . . 184
Add-On Electrical Equipment . . . 211
Additional Information OnStar . . . . . . . . . . . . . . . . . . . . . . . 327
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . . . . 298
Adjustments Lumbar, Front Seats . . . . . . . . . . . . 55
Air Cleaner/Filter, Engine . . . . . . . 224
Air Conditioning . . . . . . . . . . . 147, 150
Air Filter, Passenger Compartment . . . . . . . . . . . . . . . . . 155
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 154
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . 80
How Does an Airbag
Restrain? . . . . . . . . . . . . . . . . . . . . . 73
Passenger Sensing System . . . . 74
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 72
What Will You See after an Airbag Inflates? . . . . . . . . . . . . . . . 73
When Should an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 71 Airbag System (cont'd)
Where Are the Airbags? . . . . . . . . 70
Airbags Adding Equipment to the
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . 79
Passenger Status Indicator . . . .116
Readiness Light . . . . . . . . . . . . . . .116
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . 79
System Check . . . . . . . . . . . . . . . . . . 68
Alarm Vehicle Security . . . . . . . . . . . . . . . . 41
Alert Lane Change . . . . . . . . . . . . . . . . . 198
Side Blind Zone (SBZA) . . . . . . 198
All-Season Tires . . . . . . . . . . . . . . . . 249
Antilock Brake System (ABS) . . . 178 Warning Light . . . . . . . . . . . . . . . . . 121
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . 281
Interior . . . . . . . . . . . . . . . . . . . . . . . . 286
Assistance Program, Roadside . . . . . . . . . . . . . . . . . . . . . . 311
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . 195
Assistance Systems for Parking and Backing . . . . . . . . . . 192

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
Index 335
Child Restraints (cont'd)Systems . . . . . . . . . . . . . . . . . . . . . . . . 85
Circuit Breakers . . . . . . . . . . . . . . . . 243
Cleaning Exterior Care . . . . . . . . . . . . . . . . . 281
Interior Care . . . . . . . . . . . . . . . . . . 286
Climate Control Systems . . . . . . . 147 Air Conditioning . . . . . . . . . . . . . . 147
Dual Automatic . . . . . . . . . . . . . . . 150
Heating . . . . . . . . . . . . . . . . . . . . . . . 147
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Cluster, Instrument . . . . . . . . . . . . . 110
Collision Damage Repair . . . . . . . 314
Compact Spare Tire . . . . . . . . . . . . 275
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . . . 99
Compass . . . . . . . . . . . . . . . . . . . . . . . 106
Connections OnStar . . . . . . . . . . . . . . . . . . . . . . . 324
Control Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . 181
Control of a Vehicle . . . . . . . . . . . . . 158
Convenience Net . . . . . . . . . . . . . . . 102
Convex Mirrors . . . . . . . . . . . . . . . . . . 43
Coolant
Engine Temperature Gauge . . .115
Cooling . . . . . . . . . . . . . . . . . . . . 147, 150 Cooling System . . . . . . . . . . . . . . . . . 225
Courtesy Lamps . . . . . . . . . . . . . . . . 142
Courtesy Transportation
Program . . . . . . . . . . . . . . . . . . . . . . . 313
Cruise Control . . . . . . . . . . . . . . . . . . 182 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Cruise Control, Adaptive . . . . . . . . 184
Cupholders . . . . . . . . . . . . . . . . . . . . . 100
Customer Assistance . . . . . . . . . . . 310
Offices . . . . . . . . . . . . . . . . . . . . . . . . 309
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 310
Customer Information Service PublicationsOrdering Information . . . . . . . . 316
Customer Satisfaction
Procedure . . . . . . . . . . . . . . . . . . . . . 307
D
Damage Repair, Collision . . . . . . . 314
Danger, Warning, and Caution . . . . 2
Data CollectionInfotainment System . . . . . . . . . . 320
OnStar . . . . . . . . . . . . . . . . . . . . . . . 320
Data Recorders, Event . . . . . . . . . 319
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 140
Defensive Driving . . . . . . . . . . . . . . . 158 Delayed Locking . . . . . . . . . . . . . . . . . 38
Diagnostics
OnStar . . . . . . . . . . . . . . . . . . . . . . . 326
Distracted Driving . . . . . . . . . . . . . . . 157
Dome Lamps . . . . . . . . . . . . . . . . . . . 143
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . 125
Delayed Locking . . . . . . . . . . . . . . . . 38
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Power Locks . . . . . . . . . . . . . . . . . . . . 38
Drive Belt Routing, Engine . . . . . . 306
Driver Assistance Systems . . . . . 192
Driver Information
Center (DIC) . . . . . . . . . . . . . . . . . . 125
Driving Assistance Systems . . . . . . . . . . 195
Characteristics and
Towing Tips . . . . . . . . . . . . . . . . . 206
Defensive . . . . . . . . . . . . . . . . . . . . . 158
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 158
For Better Fuel Economy . . . . . . . 26
Hill and Mountain Roads . . . . . . 161
If the Vehicle is Stuck . . . . . . . . . 163
Loss of Control . . . . . . . . . . . . . . . 160
Off-Road Recovery . . . . . . . . . . . 159
Vehicle Load Limits . . . . . . . . . . . 163
Wet Roads . . . . . . . . . . . . . . . . . . . 160
Winter . . . . . . . . . . . . . . . . . . . . . . . . 162

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
338 Index
J
Jump Starting - NorthAmerica . . . . . . . . . . . . . . . . . . . . . . . 276
K
Keyless EntryRemote (RKE) System . . . . . . . . . 28
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
L
Labeling, Tire Sidewall . . . . . . . . . . 251
Lamps Courtesy . . . . . . . . . . . . . . . . . . . . . . 142
Daytime Running (DRL) . . . . . . 140
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 143
Exterior Controls . . . . . . . . . . . . . . 139
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . 140
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . 145
License Plate . . . . . . . . . . . . . . . . . 241
Malfunction Indicator
(Check Engine) . . . . . . . . . . . . . .118
On Reminder . . . . . . . . . . . . . . . . . 124
Reading . . . . . . . . . . . . . . . . . . . . . . 143
Lane Change Alert (LCA) . . . . . . . 198
Lane Departure Warning (LDW) . . . . . . . . . . . . . . . . 200 Lane Departure Warning
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Lap-Shoulder Belt . . . . . . . . . . . . . . . 64
LATCH System Replacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . . . 93
LATCH, Lower Anchors and
Tethers for Children . . . . . . . . . . . . 87
LED Lighting . . . . . . . . . . . . . . . . . . . . 238
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . 144
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Illumination Control . . . . . . . . . . . 142
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Lights Airbag Readiness . . . . . . . . . . . . . .116
Antilock Brake System
(ABS) Warning . . . . . . . . . . . . . . 121
Brake System Warning . . . . . . . .119
Charging System . . . . . . . . . . . . . .117
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . .118
Cruise Control . . . . . . . . . . . . . . . . 124
Door Ajar . . . . . . . . . . . . . . . . . . . . . 125
Electric Parking Brake . . . . . . . . 120
Engine Oil Pressure . . . . . . . . . . 123
Flash-to-Pass . . . . . . . . . . . . . . . . . 140
High-Beam On . . . . . . . . . . . . . . . . 124 Lights (cont'd)
High/Low Beam Changer . . . . . 140
Lane Departure Warning . . . . . . 121
Low Fuel Warning . . . . . . . . . . . . 123
Seat Belt Reminders . . . . . . . . . . .115
Security . . . . . . . . . . . . . . . . . . . . . . 124
Service Electric Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . 120
StabiliTrak OFF . . . . . . . . . . . . . . . 122
Tire Pressure . . . . . . . . . . . . . . . . . 122
Traction Control System
(TCS)/StabiliTrak . . . . . . . . . . . . 122
Traction Off . . . . . . . . . . . . . . . . . . . 121
Locks
Automatic Door . . . . . . . . . . . . . . . . . 38
Delayed Locking . . . . . . . . . . . . . . . . 38
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Lockout Protection . . . . . . . . . . . . . . 38
Power Door . . . . . . . . . . . . . . . . . . . . . 38
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Loss of Control . . . . . . . . . . . . . . . . . 160
Low Fuel Warning Light . . . . . . . . . 123
Low-Profile Tires . . . . . . . . . . . . . . . . 250
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . . 87
Lumbar Adjustment . . . . . . . . . . . . . . 55 Front Seats . . . . . . . . . . . . . . . . . . . . . 55