2018 CHEVROLET IMPALA turn signal bulb

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
142 Lighting
Turn and Lane-Change
Signals
Move the lever all the way up or
down to signal a turn.
An arrow on the instrument cluster
flashes in the direction of the turn or
lane change.
Raise or lower the lever until the
arrow starts to flash to signal a lane
change. Hold it there until the lane
change is completed. If the lever is
briefly pressed and released, the
turn signal flashes three times.
The turn and lane-change signal
can be turned off manually by
moving the lever back to its original
position.If after signaling a turn or lane
change, the arrow flashes rapidly or
does not come on, a signal bulb
may be burned out.
Have any burned out bulbs
replaced. If a bulb is not burned out,
check the fuse. See
Fuses and
Circuit Breakers 0243.
Interior Lighting
Instrument Panel
Illumination Control
The brightness of the instrument
panel lighting and steering wheel
controls can be adjusted.
D:Move the thumbwheel up or
down to brighten or dim the lights.
Courtesy Lamps
The courtesy lamps come on when
any door is opened and the dome
lamp is in the DOOR position.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
208 Driving and Operating
necessary to go much farther
beyond the passed vehicle before
returning to the lane.
Backing Up
Hold the bottom of the steering
wheel with one hand. To move the
trailer to the left, move that hand to
the left. To move the trailer to the
right, move your hand to the right.
Always back up slowly and,
if possible, have someone
guide you.
Making TurnsCaution
Making very sharp turns while
trailering could cause the trailer to
come in contact with the vehicle.
The vehicle could be damaged.
Avoid making very sharp turns
while trailering.
When turning with a trailer, make
wider turns than normal. Do this so
the trailer will not strike soft
shoulders, curbs, road signs, trees, or other objects. Avoid jerky or
sudden maneuvers. Signal well in
advance.
If the trailer turn signal bulbs burn
out, the arrows on the instrument
cluster will still flash for turns. It is
important to check occasionally to
be sure the trailer bulbs are still
working.
Driving on Grades
Reduce speed and shift to a lower
gear
before starting down a long or
steep downgrade. If the
transmission is not shifted down, the
brakes might get hot and no longer
work well.
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.
When towing at high altitude on
steep uphill grades, consider the
following: Engine coolant will boil at
a lower temperature than at normal
altitudes. If the engine is turned off
immediately after towing at high
altitude on steep uphill grades, the vehicle may show signs similar to
engine overheating. To avoid this,
let the engine run while parked,
preferably on level ground, with the
automatic transmission in P (Park)
for a few minutes before turning the
engine off. If the overheat warning
comes on, see
Engine Overheating
0 229.
Parking on Hills
{Warning
Parking the vehicle on a hill with
the trailer attached can be
dangerous. If something goes
wrong, the rig could start to move.
People can be injured, and both
the vehicle and the trailer can be
damaged. When possible, always
park the rig on a flat surface.
If parking the rig on a hill: 1. Press the brake pedal, but do not shift into P (Park) yet. Turn
the wheels into the curb if
facing downhill or into traffic if
facing uphill.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
Vehicle Care 213
Vehicle Care
General Information
General Information . . . . . . . . . . 214
California Proposition65 Warning . . . . . . . . . . . . . . . . . 214
California Perchlorate Materials Requirements . . . . . 215
Accessories and Modifications . . . . . . . . . . . . . . . . 215
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 215
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 216
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 217
Engine Oil . . . . . . . . . . . . . . . . . . . . 220
Engine Oil Life System . . . . . . . 222
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . 223
Engine Air Cleaner/Filter . . . . . . 224
Cooling System . . . . . . . . . . . . . . 225
Engine Overheating . . . . . . . . . . 229
Overheated Engine Protection Operating Mode . . . . . . . . . . . . . 230
Washer Fluid . . . . . . . . . . . . . . . . . 230
Brakes . . . . . . . . . . . . . . . . . . . . . . . 231
Brake Fluid . . . . . . . . . . . . . . . . . . . 232 Battery - North America . . . . . . 233
Starter Switch Check . . . . . . . . . 234
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 235
Park Brake and P (Park) Mechanism Check . . . . . . . . . . 235
Wiper Blade Replacement . . . . 235
Windshield Replacement . . . . . 236
Gas Strut(s) . . . . . . . . . . . . . . . . . . 236
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 237
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 238
Halogen Bulbs . . . . . . . . . . . . . . . . 238
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . . . 238
LED Lighting . . . . . . . . . . . . . . . . . 238
Headlamps, Front Turn Signal, Sidemarker, and Parking
Lamps . . . . . . . . . . . . . . . . . . . . . . 238
Taillamps, Turn Signal, Stoplamps, and Back-Up
Lamps . . . . . . . . . . . . . . . . . . . . . . 240
License Plate Lamp . . . . . . . . . . 241
Electrical System
High Voltage Devices and Wiring . . . . . . . . . . . . . . . . . . . . . . . 242 Electrical System Overload . . . 242
Fuses and Circuit Breakers . . . 243
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 243
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 246
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 248
All-Season Tires . . . . . . . . . . . . . . 249
Winter Tires . . . . . . . . . . . . . . . . . . 250
Low-Profile Tires . . . . . . . . . . . . . 250
Summer Tires . . . . . . . . . . . . . . . . 250
Tire Sidewall Labeling . . . . . . . . 251
Tire Designations . . . . . . . . . . . . . 253
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . 254
Tire Pressure . . . . . . . . . . . . . . . . . 256
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . 258
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 258
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 259
Tire Inspection . . . . . . . . . . . . . . . . 262
Tire Rotation . . . . . . . . . . . . . . . . . 262
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 263
Buying New Tires . . . . . . . . . . . . . 264
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 265

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
238 Vehicle Care
Bulb Replacement
For the proper type of replacement
bulbs, or 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(Continued)
Warning (Continued)
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-11348316) -
2018 - CRC - 8/22/17
Vehicle Care 239
To replace one of the headlamp
bulbs:1. Open the hood. See Hood
0 216.
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 0238.
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-11348316) -
2018 - CRC - 8/22/17
240 Vehicle Care
4. Replace the bulb in the bulbsocket.
5. Install the bulb socket in the headlamp assembly by turning
it clockwise.
6. 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.
Taillamps, Turn Signal,
Stoplamps, and Back-Up
Lamps
Trunk Deck Inboard Taillamp
1. Open the trunk. See Trunk
0 39.
2. Remove the push pins and pull back the trunk deck trim.
3. Remove the bulb socket byturning counterclockwise and
pulling straight out.
4. Remove the bulb from the socket by pulling it straight out.
5. Install the new bulb in the bulb socket.
6. Install the bulb socket by turning clockwise.
7. Install the trunk deck trim.
Stoplamp/Taillamp/Turn Signal
Lamp and Back-Up Lamp
Driver Side Shown, Passenger Side Similar
1. Back-Up Lamp
2. Stoplamp/Taillamp/TurnSignal Lamp
Caution
Improper lamp assembly removal
and installation can cause leaks
and water intrusion which may
cause damage to the taillamp. Do
(Continued)

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
334 Index
AutomaticDimming Mirrors . . . . . . . . . . . . . . . . 44
Door Locks . . . . . . . . . . . . . . . . . . . . . 38
Forward Braking . . . . . . . . . . . . . . 197
Headlamp System . . . . . . . . . . . . 141
Transmission . . . . . . . . . . . . . . . . . 175
Transmission Fluid . . . . . . . . . . . 223
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 177
Shift Lock Control FunctionCheck . . . . . . . . . . . . . . . . . . . . . . . 235
B
Battery
Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . 145
Load Management . . . . . . . . . . . . 144
Power Protection . . . . . . . . . . . . . 145
Battery - North America . . . . 233, 276
Blade Replacement, Wiper . . . . . 235
Brake Parking, Electric . . . . . . . . . . . . . . 178
System Warning Light . . . . . . . . .119
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 231 Antilock . . . . . . . . . . . . . . . . . . . . . . . 178
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 180
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 232 Braking . . . . . . . . . . . . . . . . . . . . . . . . . 158
Automatic Forward . . . . . . . . . . . 197
Break-In, New Vehicle . . . . . . . . . . 167
Bulb Replacement Halogen Bulbs . . . . . . . . . . . . . . . . 238
Headlamp Aiming . . . . . . . . . . . . . 237
Headlamps . . . . . . . . . . . . . . . . . . . 238
Headlamps, Front TurnSignal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . . . 238
High Intensity Discharge
(HID) Lighting . . . . . . . . . . . . . . . 238
License Plate Lamps . . . . . . . . . 241
Taillamps, Turn Signal, Stoplamps, and Back-up
Lamps . . . . . . . . . . . . . . . . . . . . . . 240
Buying New Tires . . . . . . . . . . . . . . . 264
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 106
California Fuel Requirements . . . . . . . . . . . 202
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 215 California
Proposition
65 Warning . . . . . . . . . .214, 233, 276,
Back Cover
Canadian Vehicle Owners . . . . . . . . 2
Capacities and Specifications . . . . . . . . . . . . . . . . . 305
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 174
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Winter Driving . . . . . . . . . . . . . . . . 162
Cargo Management System . . . . . . . . . 101
Caution, Danger, and Warning . . . . 2
Center Console Storage . . . . . . . . 100
Chains, Tire . . . . . . . . . . . . . . . . . . . . 268
Charging Wireless . . . . . . . . . . . . . . . . . . . . . . 108
Charging System Light . . . . . . . . . 117
Check Engine Light (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . .118
Child Restraints Infants and Young Children . . . . . 82
Lower Anchors and Tethersfor Children . . . . . . . . . . . . . . . . . . . 87
Older Children . . . . . . . . . . . . . . . . . . 81
Securing . . . . . . . . . . . . . . . . . . . . 94, 96

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
Index 337
FusesEngine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 243
Fuses and Circuit Breakers . . . 243
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 246
G
Garage Door Opener . . . . . . . . . . . 135Programming . . . . . . . . . . . . . . . . . 135
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 236
Gauges Engine CoolantTemperature . . . . . . . . . . . . . . . . .115
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . .114
Odometer . . . . . . . . . . . . . . . . . . . . . .113
Speedometer . . . . . . . . . . . . . . . . . .113
Tachometer . . . . . . . . . . . . . . . . . . . .113
Trip Odometer . . . . . . . . . . . . . . . . .113
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . 109
General Information Service and Maintenance . . . . . 291
Towing . . . . . . . . . . . . . . . . . . . . . . . . 206
Vehicle Care . . . . . . . . . . . . . . . . . . 214
Glove Box . . . . . . . . . . . . . . . . . . . . . . 100
GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . . 311
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . 238
Hazard Warning Flashers . . . . . . . 141
Head Restraints . . . . . . . . . . . . . . . . . 50
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . 237
Automatic . . . . . . . . . . . . . . . . . . . . . 141
Bulb Replacement . . . . . . . . . . . . 238
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . 140
Flash-to-Pass . . . . . . . . . . . . . . . . . 140
Headlamps, Front Turn Signal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . . . 238
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . 238
High-Beam On Light . . . . . . . . . . 124
High/Low Beam Changer . . . . . 140
Lamps On Reminder . . . . . . . . . 124
Heated Steering Wheel . . . . . . . . . . . . . . . 104
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Heated Mirrors . . . . . . . . . . . . . . . . . . . 44
Heater
Engine . . . . . . . . . . . . . . . . . . . . . . . . 171
Heating . . . . . . . . . . . . . . . . . . . . 147, 150 High Voltage Devices and
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 242
High-Beam On Light . . . . . . . . . . . . 124
High-Speed Operation . . . . . . . . . . 258
Hill and Mountain Roads . . . . . . . . 161
Hill Start Assist (HSA) . . . . . . . . . . 180
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . 63
HVAC . . . . . . . . . . . . . . . . . . . . . . 147, 150
I
Ignition Positions . . . . . . . . . . . . . . . 167
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 42
Indicator Vehicle Ahead . . . . . . . . . . . . . . . . 121
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . 82
Infotainment . . . . . . . . . . . . . . . . . . . . 146
Infotainment System . . . . . . . . . . . . 320
Instrument Cluster . . . . . . . . . . . . . . 110
Instrument Panel Storage Area . . . . . . . . . . . . . . . . . . . 99
Interior Rearview Mirrors . . . . . . . . . 45
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2