air filter CHEVROLET IMPALA 2018 Owner's Manual

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
Climate Controls 147
Climate Controls
Climate Control Systems
Climate Control Systems . . . . . 147
Dual Automatic ClimateControl System . . . . . . . . . . . . . 150
Air Vents
Air Vents . . . . . . . . . . . . . . . . . . . . . 154
Maintenance
Passenger Compartment AirFilter . . . . . . . . . . . . . . . . . . . . . . . . 155
Service . . . . . . . . . . . . . . . . . . . . . . . 155
Climate Control Systems
The heating, cooling, and ventilation for the vehicle can be controlled with
this system.
1. Fan Control
2. Air Conditioning or Comfort/
Eco Air Conditioning (Stop/
Start Only)
3. Air Delivery Modes
4. Defrost
5. TEMP (Temperature Control)
6. Rear Window Defogger
7. Recirculation Climate Control Influence on Stop/
Start Operation and Fuel Economy
(If Equipped)
The climate control system is
dependent upon other vehicle
systems for heat and power input.
Certain climate control settings can
lead to higher fuel usage and/or
fewer auto stops.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
Climate Controls 155
Maintenance
Passenger Compartment
Air Filter
The passenger compartment air
filter reduces dust, pollen, and other
airborne irritants from outside air
that is pulled into the vehicle. The
filter will need to be replaced
periodically. SeeMaintenance
Schedule 0293.
Using the climate control system
without an air filter installed is not
recommended. Water or other
debris could enter the system and
result in leaks or noises. Always
install a new filter when removing
the old filter.
For more information on filter
replacement, see your dealer.
Service
All vehicles have a label underhood
that identifies the refrigerant used in
the vehicle. The refrigerant system
should only be serviced by trained
and certified technicians. The air
conditioning evaporator should
never be repaired or replaced by
one from a salvage vehicle.
It should only be replaced by a new
evaporator to ensure proper and
safe operation.
During service, all refrigerants
should be reclaimed with proper
equipment. Venting refrigerants
directly to the atmosphere is harmful
to the environment and may also
create unsafe conditions based on
inhalation, combustion, frostbite,
or other health-based concerns.

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
218 Vehicle Care
1.Engine Air Cleaner/Filter 0224.
2. Engine Cover.
3. Engine Oil Fill Cap. See Engine Oil 0220.
4. Engine Oil Dipstick. See Engine Oil 0220.
5. Engine Cooling Fans (Out of View). See Cooling System
0 225.
6. Transmission Fluid Cap. See Automatic Transmission Fluid
0223.
7. Brake Fluid Reservoir. See Brake Fluid 0232.
8. Coolant Surge Tank and Pressure Cap. See Cooling
System 0225.
9. Battery (Under Cover). See Battery - North America 0233.
10. Windshield Washer Fluid Reservoir. See Washer Fluid
0 230.
11. Engine Compartment Fuse
Block 0243.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
220 Vehicle Care
1.Engine Air Cleaner/Filter 0224.
2. Engine Oil Fill Cap. See Engine Oil 0220.
3. Engine Oil Dipstick. See Engine Oil 0220.
4. Engine Cooling Fans (Out of View). See Cooling System
0 225.
5. Engine Cover.
6. Transmission Fluid Cap and Dipstick (Out of View). See
Automatic Transmission Fluid
0223.
7. Brake Fluid Reservoir. See Brake Fluid 0232.
8. Coolant Surge Tank and Pressure Cap. See Cooling
System 0225.
9. Battery (Under Cover). See Battery - North America 0233.
10. Windshield Washer Fluid Reservoir. See Washer Fluid
0 230.
11. Engine Compartment Fuse
Block 0243.Engine Oil
To ensure proper engine
performance and long life, careful
attention must be paid to engine oil.
Following these simple, but
important steps will help protect
your investment:
.
Use engine oil approved to the
proper specification and of the
proper viscosity grade. See
“Selecting the Right Engine Oil”
in this section.
. Check the engine oil level
regularly and maintain the
proper oil level. See “Checking
Engine Oil” and“When to Add
Engine Oil” in this section.
. Change the engine oil at the
appropriate time. See Engine Oil
Life System 0222.
. Always dispose of engine oil
properly. See “What to Do with
Used Oil” in this section.
Checking Engine Oil
Check the engine oil level regularly,
every 650 km (400 mi), especially
prior to a long trip. The engine oil
dipstick handle is a loop. See
Engine Compartment Overview
0217 for the location.
{Warning
The engine oil dipstick handle
may be hot; it could burn you.
Use a towel or glove to touch the
dipstick handle.
If a low oil Driver Information Center
(DIC) message displays, check the
oil level.
Follow these guidelines:
. To get an accurate reading, park
the vehicle on level ground.
Check the engine oil level after
the engine has been off for at
least two hours. Checking the
engine oil level on steep grades
or too soon after engine shutoff
can result in incorrect readings.
Accuracy improves when

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
Vehicle Care 223
OIL SOON message comes on.
Change the oil as soon as possible
within the next 1 000 km (600 mi).
It is possible that, if driving under
the best conditions, the oil life
system might indicate that an oil
change is not necessary for up to a
year. The engine oil and filter must
be changed at least once a year
and, at this time, the system must
be reset. Your dealer has trained
service people who will perform this
work and reset the system. It is also
important to check the oil regularly
over the course of an oil drain
interval and keep it at the proper
level.
If the system is ever reset
accidentally, the oil must be
changed at 5 000 km (3,000 mi)
since the last oil change.
Remember to reset the oil life
system whenever the oil is changed.
How to Reset the Engine Oil
Life System
1. Using the DIC controls on theright side of the steering wheel,
display REMAINING OIL LIFE on the DIC. See
Driver
Information Center (DIC) 0125.
When remaining oil life is low,
the CHANGE ENGINE OIL
SOON message will appear on
the display.
2. Press
Von the DIC controls
and hold down for a few
seconds to clear the CHANGE
ENGINE OIL SOON message
and reset the oil life at 100%.
Be careful not to reset the oil
life display accidentally at any
time other than after the oil is
changed. It cannot be reset
accurately until the next oil
change.
The oil life system can also be reset
as follows: 1. Display REMAINING OIL LIFE on the DIC. See Driver
Information Center (DIC) 0125.
2. Fully press and release the accelerator pedal three times
within five seconds. The system is reset when the
CHANGE ENGINE OIL SOON
message is off and the REMAINING
OIL LIFE message is displayed.
If the CHANGE ENGINE OIL SOON
message comes back on when the
vehicle is started, the engine oil life
system has not been reset. Repeat
the procedure.
Automatic Transmission
Fluid
How to Check Automatic
Transmission Fluid
It is not necessary to check the
transmission fluid level.
A transmission fluid leak is the only
reason for fluid loss. If a leak
occurs, take the vehicle to your
dealer service department and have
it repaired as soon as possible.
There is a special procedure for
checking and changing the
transmission fluid. Because this
procedure is difficult, you should
have this done at your dealer
service department. Contact your

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
224 Vehicle Care
dealer for additional information or
the procedure can be found in the
service manual. To purchase a
service manual, seeService
Publications Ordering Information
0 316.
Change the fluid at the intervals
listed in Maintenance Schedule
0 293, and be sure to use the fluid
listed in Recommended Fluids and
Lubricants 0301.
Engine Air Cleaner/Filter
The engine air cleaner/filter is in the
engine compartment on the
passenger side of the vehicle. See
Engine Compartment Overview
0217.
When to Inspect the Engine Air
Cleaner/Filter
For intervals on changing and
inspecting the engine air cleaner/
filter, see Maintenance Schedule
0 293.
How to Inspect the Engine Air
Cleaner/Filter
Do not start the engine or have the
engine running with the engine air
cleaner/filter housing open. Before
removing the engine air cleaner/
filter, make sure that the engine air
cleaner/filter housing and nearby
components are free of dirt and
debris. Remove the engine air
cleaner/filter. Lightly tap and shake
the engine air cleaner/filter (away
from the vehicle), to release loose
dust and dirt. Inspect the engine air
cleaner/filter for damage, and
replace if damaged. Do not clean
the engine air cleaner/filter or
components with water or
compressed air. To inspect or replace the engine air
cleaner/filter:
2.5L L4 Engine
1. Screws
2. Electrical Connector
3. Air Duct Clamp
1. Open the hood. See
Hood
0 216.
2. Remove the five screws (1) on top of the engine air cleaner/
filter housing.
3. Disconnect the electrical connector (2).

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
Vehicle Care 225
4. Disconnect the outlet duct byloosening the air duct
clamp (3).
5. Lift the filter cover housing away from the engine air
cleaner/filter housing.
6. Pull out the filter.
7. Inspect or replace the engine air cleaner/filter.
8. Reverse Steps 2–5 to reinstall the filter cover housing.
3.6L V6 Engine
1. Screws
2. Secondary Air Hose (If
Equipped) 3. Electrical Connector
4. Air Duct Clamp
To inspect or replace the engine air
cleaner/filter:
1. Open the hood. See Hood
0 216.
2. Remove the seven screws (1) on top of the engine air
cleaner/filter housing.
3. Disconnect the secondary air hose (2) (if equipped).
4. Disconnect the electrical connector (3).
5. Disconnect the outlet duct by loosening the air duct
clamp (4).
6. Lift the filter cover housing away from the engine air
cleaner/filter housing.
7. Pull out the filter.
8. Inspect or replace the engine air cleaner/filter.
9. Reverse Steps 2–5 to reinstall the filter cover housing.
{Warning
Operating the engine with the air
cleaner/filter off can cause you or
others to be burned. The air
cleaner not only cleans the air; it
helps to stop flames if the engine
backfires. Use caution when
working on the engine and do not
drive with the air cleaner/filter off.
Caution
If the air cleaner/filter is off, dirt
can easily get into the engine,
which could damage it. Always
have the air cleaner/filter in place
when driving.
Cooling System
The cooling system allows the
engine to maintain the correct
working temperature.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
Service and Maintenance 293
Maintenance
Schedule
Owner Checks and Services
At Each Fuel Stop
.Check the engine oil level. See
Engine Oil 0220.
Once a Month
. Check the tire inflation
pressures. See Tire Pressure
0 256.
. Inspect the tires for wear. See
Tire Inspection 0262.
. Check the windshield washer
fluid level. See Washer Fluid
0 230.
Engine Oil Change
When the CHANGE ENGINE OIL
SOON message displays, have the
engine oil and filter changed within
the next 1 000 km/600 mi. If driven
under the best conditions, the
engine oil life system may not
indicate the need for vehicle service
for up to a year. The engine oil and filter must be changed at least once
a year and the oil life system must
be reset. Your trained dealer
technician can perform this work.
If the engine oil life system is reset
accidentally, service the vehicle
within 5 000 km/3,000 mi since the
last service. Reset the oil life
system when the oil is changed.
See
Engine Oil Life System 0222.
Tire Rotation and Required
Services Every 12 000 km/
7,500 mi
Rotate the tires, if recommended for
the vehicle, and perform the
following services. See Tire
Rotation 0262.
. Check engine oil level and oil
life percentage. If needed,
change engine oil and filter, and
reset oil life system.
See Engine Oil 0220 and
Engine Oil Life System 0222.
. Check engine coolant level. See
Cooling System 0225.
. Check windshield washer fluid
level. See Washer Fluid 0230. .
Visually inspect windshield wiper
blades for wear, cracking,
or contamination. See Exterior
Care 0281. Replace worn or
damaged wiper blades. See
Wiper Blade Replacement
0 235.
. Check tire inflation pressures.
See Tire Pressure 0256.
. Inspect tire wear. See Tire
Inspection 0262.
. Visually check for fluid leaks.
. Inspect engine air cleaner filter.
See Engine Air Cleaner/Filter
0 224.
. Inspect brake system. See
Exterior Care 0281.
. Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of
wear. See Exterior Care 0281.
. Check restraint system
components. See Safety System
Check 067.
. Visually inspect fuel system for
damage or leaks.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-11348316) -
2018 - CRC - 8/22/17
Service and Maintenance 295
Maintenance Schedule
Additional Required
Services - Normal12 000 km/7,500 mi
24 000 km/15,000 mi
36 000 km/22,500 mi
48 000 km/30,000 mi
60 000 km/37,500 mi
72 000 km/45,000 mi
84 000 km/52,500 mi
96 000 km/60,000 mi
108 000 km/67,500 mi
120 000 km/75,000 mi
132 000 km/82,500 mi
144 000 km/90,000 mi
156 000 km/97,500 mi
168 000 km/105,000 mi 180 000 km/112,500 mi
192 000 km/120,000 mi
204 000 km/127,500 mi
216 000 km/135,000 mi
228 000 km/142,500 mi
240 000 km/150,000 mi
Rotate tires and perform Required Services.
Check engine oil level and oil life percentage.
Change engine oil and filter, if needed.@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Replace passenger compartment air filter. (1)@ @@@@@
Inspect evaporative control system. (2)@ @@
Replace engine air cleaner filter. (3)@@@
Replace spark plugs. Inspect spark plug wires.@
Drain and fill engine cooling system. (4)@
Visually inspect accessory drive belts. (5)@
Replace brake fluid. (6)
Footnotes—Maintenance
Schedule Additional Required
Services - Normal
(1) Or every two years, whichever
comes first. More frequent
passenger compartment air filter
replacement may be needed if
driving in areas with heavy traffic,
poor air quality, high dust levels,
or environmental allergens. Passenger compartment air filter
replacement may also be needed if
there is reduced airflow, window
fogging, or odors. Your GM dealer
can help determine when to replace
the filter.
(2)
Visually check all fuel and vapor
lines and hoses for proper
attachment, connection, routing, and
condition. (3)
Or every four years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed.
(4) Or every five years, whichever
comes first. See Cooling System
0 225.