
Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-9921197) -
2017 - crc - 3/30/16
Driving and Operating 233
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
3/[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. 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.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-9921197) -
2017 - crc - 3/30/16
Driving and Operating 237
LCA may not operate when the LCA
sensors in the left or right corners of
the rear bumper are covered with
mud, dirt, snow, ice, or slush, or in
heavy rainstorms. For cleaning
instructions, see "Washing the
Vehicle" underExterior Care0316.
If the DIC still displays the system
unavailable message after cleaning
both sides of the vehicle toward the
rear corners of the vehicle, see your
dealer.
If the LCA displays do not light up
when moving vehicles are in the
side blind zone or rapidly
approaching this zone and the
system is clean, the system may
need service. Take the vehicle to
your dealer.
When LCA is disabled for any
reason other than the driver turning
it off, the Lane Change Alert On
option will not be available on the
personalization menu.
Radio Frequency Information
See Radio Frequency
Statement 0352.
Lane Departure
Warning (LDW)
If equipped, LDW may help avoid
crashes due to unintentional lane
departures. It may provide an alert if
the vehicle is crossing a lane
without using a turn signal in that
direction. LDW uses a camera
sensor to detect the lane markings
at speeds of 56 km/h (35 mph) or
greater.
{Warning
The LDW system does not steer
the vehicle. The LDW system
may not:
. Provide enough time to
avoid a crash.
. Detect lane markings under
poor weather or visibility
conditions. This can occur if
the windshield or
headlamps are blocked by
dirt, snow, or ice; if they are
(Continued)
Warning (Continued)
not in proper condition; or if
the sun shines directly into
the camera.
. Detect road edges.
. Detect lanes on winding or
hilly roads.
If LDW only detects lane
markings on one side of the road,
it will only warn you when
departing the lane on the side
where it has detected a lane
marking. Always keep your
attention on the road and
maintain proper vehicle position
within the lane, or vehicle
damage, injury, or death could
occur. Always keep the
windshield, headlamps, and
camera sensors clean and in
good repair. Do not use LDW in
bad weather conditions.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-9921197) -
2017 - crc - 3/30/16
238 Driving and Operating
How the System Works
The LDW camera sensor is on the
windshield ahead of the rearview
mirror.
To turn LDW on and off, press
@on
the instrument panel to the left of
the steering wheel. The control
indicator will light when LDW is on.
When LDW is on,@is green if
LDW is available to warn of a lane
departure. If the vehicle crosses a
detected lane marking without using
the turn signal in that direction,
@
changes to amber and flashes.
Additionally, there will be three
beeps on the right or left, depending
on the lane departure direction.
When the System Does Not
Seem to Work Properly
The system may not detect lanes as
well when there are:
. Close vehicles ahead.
. Sudden lighting changes, such
as when driving through tunnels.
. Banked roads.
If the LDW system is not functioning
properly when lane markings are
clearly visible, cleaning the
windshield may help.
LDW alerts may occur due to tar
marks, shadows, cracks in the road,
temporary or construction lane
markings, or other road
imperfections. This is normal system
operation; the vehicle does not need
service. Turn LDW off if these
conditions continue.
Fuel
GM recommends the use of TOP
TIER Detergent Gasoline to keep
the engine cleaner and reduce
engine deposits. See
www.toptiergas.com for a list of TOP
TIER Detergent Gasoline marketers
and applicable countries.
If the vehicle has a yellow fuel cap
or a yellow sticker on the fuel door,
E85 or FlexFuel can be used. See
E85 or FlexFuel 0240.
Use regular unleaded gasoline
meeting ASTM specification D4814
with a posted octane rating of 87 or
higher. Do not use gasoline with a

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-9921197) -
2017 - crc - 3/30/16
Vehicle Care 249
Vehicle Care
General Information
General Information . . . . . . . . . . 250
California Proposition65 Warning . . . . . . . . . . . . . . . . . 250
California Perchlorate Materials Requirements . . . . . 250
Accessories and Modifications . . . . . . . . . . . . . . . . 251
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 251
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 252
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 253
Engine Oil . . . . . . . . . . . . . . . . . . . . 256
Engine Oil Life System . . . . . . . 258
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . 259
Engine Air Cleaner/Filter . . . . . . 260
Cooling System . . . . . . . . . . . . . . 261
Engine Coolant . . . . . . . . . . . . . . . 262
Engine Overheating . . . . . . . . . . 265
Overheated Engine Protection Operating Mode . . . . . . . . . . . . . 266
Washer Fluid . . . . . . . . . . . . . . . . . 266
Brakes . . . . . . . . . . . . . . . . . . . . . . . 267
Brake Fluid . . . . . . . . . . . . . . . . . . . 268 Battery - North America . . . . . . 269
Starter Switch Check . . . . . . . . . 270
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 270
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . 271
Park Brake and P (Park) Mechanism Check . . . . . . . . . . 271
Wiper Blade Replacement . . . . 271
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 272
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 273
Halogen Bulbs . . . . . . . . . . . . . . . . 273
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . . . 273
LED Lighting . . . . . . . . . . . . . . . . . 273
Headlamps, Front Turn Signal, Sidemarker, and Parking
Lamps . . . . . . . . . . . . . . . . . . . . . . 273
Taillamps, Turn Signal, Stoplamps, and Back-Up
Lamps . . . . . . . . . . . . . . . . . . . . . . 275
License Plate Lamp . . . . . . . . . . 276
Replacement Bulbs . . . . . . . . . . . 277
Electrical System
High Voltage Devices and Wiring . . . . . . . . . . . . . . . . . . . . . . . 277 Electrical System Overload . . . 277
Fuses . . . . . . . . . . . . . . . . . . . . . . . . 278
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 278
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 281
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 283
All-Season Tires . . . . . . . . . . . . . . 284
Winter Tires . . . . . . . . . . . . . . . . . . 285
Low-Profile Tires . . . . . . . . . . . . . 285
Summer Tires . . . . . . . . . . . . . . . . 285
Tire Sidewall Labeling . . . . . . . . 286
Tire Designations . . . . . . . . . . . . . 288
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . 289
Tire Pressure . . . . . . . . . . . . . . . . . 291
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . 292
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 293
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 294
Tire Inspection . . . . . . . . . . . . . . . . 297
Tire Rotation . . . . . . . . . . . . . . . . . 297
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 298
Buying New Tires . . . . . . . . . . . . . 299
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 300

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-9921197) -
2017 - crc - 3/30/16
Vehicle Care 273
Bulb Replacement
For the proper type of replacement
bulbs, seeReplacement
Bulbs 0277.
For any bulb-changing procedure
not listed in this section, contact
your dealer.
Halogen Bulbs
{Warning
Halogen bulbs have pressurized
gas inside and can burst if you
drop or scratch the bulb. You or
others could be injured. Be sure
to read and follow the instructions
on the bulb package.
High Intensity Discharge
(HID) Lighting
{Warning
The High Intensity Discharge
(HID) lighting system operates at
a very high voltage. If you try to
service any of the system
components, you could be
seriously injured. Have your
dealer or a qualified technician
service them.
The vehicle may have HID
headlamps. After an HID headlamp
bulb has been replaced, you may
notice that the beam is a slightly
different shade than it was originally.
This is normal.
LED Lighting
This vehicle has several LED lamps.
For replacement of any LED lighting
assembly, contact your dealer.
Headlamps, Front Turn
Signal, Sidemarker, and
Parking Lamps
Base Headlamp Assembly
The base model vehicle has
halogen high/low-beam headlamps,
a parking/turn signal lamp, and a
sidemarker lamp on the headlamp
assembly.
Driver Side Shown, Passenger Side Similar
1. Sidemarker Lamp
2. High/Low-Beam Headlamp
3. Parking/Turn Signal Lamp

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-9921197) -
2017 - crc - 3/30/16
274 Vehicle Care
To replace one of the headlamp
bulbs:1. Open the hood. See Hood 0252.
2. For the driver side bulb, remove the windshield washer
bottle filler neck by firmly
pulling it straight up and out of
the bottle.
3. Remove the cap from the back of the headlamp assembly by
turning it counterclockwise.
4. Disconnect the electricalconnector.
5. Remove the bulb from the lamp assembly by turning
counterclockwise. 6. Install a new bulb in the lamp
assembly.
7. Connect the electrical connector.
8. Replace the cap on the back of the headlamp assembly by
turning it clockwise.
9. For the driver side, reinstall the windshield washer bottle filler
neck by firmly pushing it
straight into the bottle. Ensure
that the filler neck clip engages
into the underhood electrical
center retainer.
Uplevel Headlamp Assembly
The uplevel model vehicle has a
high intensity discharge (HID) high/
low-beam headlamp, a parking/turn
signal lamp, and a sidemarker lamp
on the headlamp assembly.
For replacement of the headlamp on
an HID assembly, contact your
dealer. See High Intensity
Discharge (HID) Lighting 0273.
Driver Side Shown, Passenger
Side Similar
1. Sidemarker Lamp
2. Parking/Turn Signal Lamp
Front Turn Signal, Parking, and
Sidemarker Lamps
To replace one of these lamps on a
base or uplevel assembly:
1. For the driver side bulb, remove the windshield washer
bottle filler neck by firmly
pulling it straight up and out of
the bottle.
2. Remove the bulb socket from the headlamp assembly by
turning it counterclockwise.
3. Remove the bulb from the socket.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-9921197) -
2017 - crc - 3/30/16
282 Vehicle Care
To access the fuses on vehicles not
equipped with a storage bin:1. Pull the lower edge of the cover rearward. The clips on
the lower edge will release,
and the upper edge will fall
away from the instrument
panel.
2. To replace the cover, hook the upper edge of the cover on the
instrument panel, and swing
the lower edge of the cover into
place.
3. Press the lower edge of the cover until the clips engage.
Instrument Panel Fuse Block
The vehicle may not be equipped
with all of the fuses, relays, and
features shown. Mini Fuses Usage
1 Wireless charging
2 Rear stoplamps/ Courtesy lamps/
Reverse lamps/Shift
lock solenoid/Puddle
lamps
3 LED indicator light
4 Radio Mini Fuses Usage
5 Cluster/Auxiliary jack/HMI/USB/Radio
display/CD player
6 Console power outlet
7 Rear console power outlet
8 Trunk release/Brake pedal apply/Keyless
start indicators/
Hazard switch
illumination/CHMSL/
Brake relay/
Sidemarker lamps/
Washer relay/Run/
Crank relay
9 Trunk lamp/Right low-beam headlamp/
DRL/Right front turn
lamp/Right rear
parking lamp/
Stoplamp
10 Door unlock 11 Front HVAC blower
12 Passenger power seat

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-9921197) -
2017 - crc - 3/30/16
Vehicle Care 301
Traffic Safety Administration
(NHTSA), which grades tires by
treadwear, traction, and
temperature performance. This
applies only to vehicles sold in
the United States. The grades
are molded on the sidewalls of
most passenger car tires. The
Uniform Tire Quality Grading
(UTQG) system does not apply
to deep tread, winter tires,
compact spare tires, tires with
nominal rim diameters of
10 to 12 inches (25 to 30 cm),
or to some limited-production
tires.
While the tires available on
General Motors passenger cars
and light trucks may vary with
respect to these grades, they
must also conform to federal
safety requirements and
additional General Motors Tire
Performance Criteria (TPC)
standards.Quality grades can be found
where applicable on the tire
sidewall between tread shoulder
and maximum section width. For
example:
Treadwear 200 Traction AA
Temperature A
All Passenger Car Tires Must
Conform to Federal Safety
Requirements In Addition To
These Grades.
Treadwear
The treadwear grade is a
comparative rating based on the
wear rate of the tire when tested
under controlled conditions on a
specified government test
course. For example, a tire
graded 150 would wear one and
one-half (1½) times as well on
the government course as a tire
graded 100. The relative
performance of tires depends
upon the actual conditions of
their use, however, and may
depart significantly from thenorm due to variations in driving
habits, service practices and
differences in road
characteristics and climate.
Traction
The traction grades, from
highest to lowest, are AA, A, B,
and C. Those grades represent
the tire's ability to stop on wet
pavement as measured under
controlled conditions on
specified government test
surfaces of asphalt and
concrete. A tire marked C may
have poor traction performance.
Warning: The traction grade
assigned to this tire is based on
straight-ahead braking traction
tests, and does not include
acceleration, cornering,
hydroplaning, or peak traction
characteristics.
Temperature
The temperature grades are A
(the highest), B, and C,
representing the tire's resistance