2016 CHEVROLET IMPALA engine coolant

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S/Canada-9086448) -
2016 - CRC - 5/20/15
248 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . 249
California Proposition65 Warning . . . . . . . . . . . . . . . . . 249
California Perchlorate Materials Requirements . . . . . 249
Accessories and Modifications . . . . . . . . . . . . . . . . 249
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 250
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 250
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 252
Engine Oil . . . . . . . . . . . . . . . . . . . . 255
Engine Oil Life System . . . . . . . 257
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . 258
Engine Air Cleaner/Filter . . . . . . 259
Cooling System . . . . . . . . . . . . . . 260
Engine Coolant . . . . . . . . . . . . . . . 261
Engine Overheating . . . . . . . . . . 264
Overheated Engine Protection Operating Mode . . . . . . . . . . . . . 265
Washer Fluid . . . . . . . . . . . . . . . . . 265
Brakes . . . . . . . . . . . . . . . . . . . . . . . 266
Brake Fluid . . . . . . . . . . . . . . . . . . . 267 Battery - North America . . . . . . 268
Starter Switch Check . . . . . . . . . 269
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 269
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . 270
Park Brake and P (Park) Mechanism Check . . . . . . . . . . 270
Wiper Blade Replacement . . . . 270
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 271
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 271
Halogen Bulbs . . . . . . . . . . . . . . . . 271
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . . . 272
LED Lighting . . . . . . . . . . . . . . . . . 272
Headlamps, Front Turn Signal, Sidemarker, and Parking
Lamps . . . . . . . . . . . . . . . . . . . . . . 272
Taillamps, Turn Signal, Stoplamps, and Back-Up
Lamps . . . . . . . . . . . . . . . . . . . . . . 273
License Plate Lamp . . . . . . . . . . 275
Replacement Bulbs . . . . . . . . . . . 275
Electrical System
High Voltage Devices and Wiring . . . . . . . . . . . . . . . . . . . . . . . 276 Electrical System Overload . . . 276
Fuses . . . . . . . . . . . . . . . . . . . . . . . . 276
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 277
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 280
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 283
All-Season Tires . . . . . . . . . . . . . . 284
Winter Tires . . . . . . . . . . . . . . . . . . 284
Summer Tires . . . . . . . . . . . . . . . . 284
Tire Sidewall Labeling . . . . . . . . 285
Tire Designations . . . . . . . . . . . . . 287
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . 288
Tire Pressure . . . . . . . . . . . . . . . . . 290
Tire Pressure for High-Speed
Operation . . . . . . . . . . . . . . . . . . . 291
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 292
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 293
Tire Inspection . . . . . . . . . . . . . . . . 296
Tire Rotation . . . . . . . . . . . . . . . . . 296
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 297
Buying New Tires . . . . . . . . . . . . . 298
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 299

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S/Canada-9086448) -
2016 - CRC - 5/20/15
Vehicle Care 253
1.Engine Air Cleaner/Filter 0259.
2. Engine Cover.
3. Engine Oil Fill Cap. See Engine Oil 0255.
4. Engine Oil Dipstick. See Engine Oil 0255.
5. Engine Cooling Fans (Out of View). See Cooling System
0 260.
6. Transmission Fluid Cap. See Automatic Transmission Fluid
0258.
7. Brake Fluid Reservoir. See Brake Fluid 0267.
8. Coolant Surge Tank and Pressure Cap. See Engine
Coolant 0261.
9. Battery (Under Cover). See Battery - North America 0268.
10. Windshield Washer Fluid Reservoir. See Washer Fluid
0 265.
11. Engine Compartment Fuse
Block 0277.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S/Canada-9086448) -
2016 - CRC - 5/20/15
Vehicle Care 255
1.Engine Air Cleaner/Filter 0259.
2. Engine Oil Fill Cap. See Engine Oil 0255.
3. Engine Oil Dipstick. See Engine Oil 0255.
4. Engine Cooling Fans (Out of View). See Cooling System
0 260.
5. Engine Cover.
6. Transmission Fluid Cap and Dipstick (Out of View). See
Automatic Transmission Fluid
0258.
7. Brake Fluid Reservoir. See Brake Fluid 0267.
8. Coolant Surge Tank and Pressure Cap. See Engine
Coolant 0261.
9. Battery (Under Cover). See Battery - North America 0268.
10. Windshield Washer Fluid Reservoir. See Washer Fluid
0 265.
11. Engine Compartment Fuse
Block 0277.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:
.
Always 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 0257.
. Always dispose of engine oil
properly. See “What to Do with
Used Oil” in this section.
Checking Engine Oil
It is a good idea to check the engine
oil level at each fuel fill. In order to
get an accurate reading, the vehicle must be on level ground. The
engine oil dipstick handle is a loop.
See
Engine Compartment Overview
0 252 for the location of the engine
oil dipstick.
Obtaining an accurate oil level
reading is essential:
1. If the engine has been running recently, turn off the engine and
allow several minutes for the oil
to drain back into the oil pan.
Checking the oil level too soon
after engine shutoff will not
provide an accurate oil level
reading.
{Warning
The engine oil dipstick handle
may be hot; it could burn you.
Use a towel or glove to touch the
dipstick handle.
2. Pull out the dipstick and wipe it with a clean paper towel or
cloth, then push it back in all
the way. Remove it again,
keeping the tip down, and
check the level.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S/Canada-9086448) -
2016 - CRC - 5/20/15
260 Vehicle Care
2. Secondary Air Hose (IfEquipped)
3. Electrical Connector
4. Air Duct Clamp
To inspect or replace the engine air
cleaner/filter:
1. Open the hood. See Hood
0 250.
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 you are driving.
Cooling System
The cooling system allows the
engine to maintain the correct
working temperature.
2.5L L4 Engine
1. Engine Cooling Fans (Out
of View)
2. Coolant Surge Tank and Pressure Cap

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S/Canada-9086448) -
2016 - CRC - 5/20/15
Vehicle Care 261
3.6L V6 Engine
1. Engine Cooling Fans (Outof View)
2. Coolant Surge Tank and Pressure Cap
{Warning
An electric engine cooling fan
under the hood can start up even
when the engine is not running
and can cause injury. Keep
hands, clothing, and tools away
from any underhood electric fan.
{Warning
Heater and radiator hoses, and
other engine parts, can be very
hot. Do not touch them. If you do,
you can be burned.
Do not run the engine if there is a
leak. If you run the engine, it
could lose all coolant. That could
cause an engine fire, and you
could be burned. Get any leak
fixed before you drive the vehicle.
Caution
Using coolant other than
DEX-COOL®can cause
premature engine, heater core,
or radiator corrosion. In addition,
the engine coolant could require
changing sooner. Any repairs
would not be covered by the
vehicle warranty. Always use
DEX-COOL (silicate-free) coolant
in the vehicle.
Engine Coolant
The cooling system in the vehicle is
filled with DEX-COOL®engine
coolant. This coolant is designed to
remain in the vehicle for 5 years or
240 000 km (150,000 mi), whichever
occurs first.
The following explains the cooling
system and how to check and add
coolant when it is low. If there is a
problem with engine overheating,
see Engine Overheating 0264.
What to Use
{Warning
Adding only plain water or some
other liquid to the cooling system
can be dangerous. Plain water
and other liquids, can boil before
the proper coolant mixture will.
The coolant warning system is set
for the proper coolant mixture.
With plain water or the wrong
mixture, the engine could get too
hot but you would not get the
(Continued)

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S/Canada-9086448) -
2016 - CRC - 5/20/15
262 Vehicle Care
Warning (Continued)
overheat warning. The engine
could catch fire and you or others
could be burned. Use a 50/
50 mixture of clean, drinkable
water and DEX-COOL coolant.
Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
coolant. If using this mixture,
nothing else needs to be added.
This mixture:
. Gives freezing protection down
to−37 °C (−34 °F), outside
temperature.
. Gives boiling protection up to
129 °C (265 °F), engine
temperature.
. Protects against rust and
corrosion.
. Will not damage aluminum parts.
. Help keep the proper engine
temperature.
Caution
If improper coolant mixture,
inhibitors, or additives are used in
the vehicle cooling system, the
engine could overheat and be
damaged. Too much water in the
mixture can freeze and crack
engine cooling parts. The repairs
would not be covered by the
vehicle warranty. Use only the
proper mixture of engine coolant
for the cooling system. See
Recommended Fluids and
Lubricants 0334.
Never dispose of engine coolant by
putting it in the trash, pouring it on
the ground, or into sewers, streams,
or bodies of water. Have the coolant
changed by an authorized service
center, familiar with legal
requirements regarding used
coolant disposal. This will help
protect the environment and your
health.
Checking Coolant
The vehicle must be on a level
surface when checking the coolant
level.
Check to see if coolant is visible in
the coolant surge tank. If the coolant
inside the coolant surge tank is
boiling, do not do anything else until
it cools down.
If coolant is visible but the coolant
level is not at or above the mark
pointed to, add a 50/50 mixture of
clean drinkable water and
DEX-COOL coolant.
Be sure the cooling system is cool
before this is done.
If no coolant is visible in the coolant
surge tank, add coolant as follows:

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S/Canada-9086448) -
2016 - CRC - 5/20/15
Vehicle Care 263
How to Add Coolant to the
Coolant Surge TankCaution
This vehicle has a specific
coolant fill procedure. Failure to
follow this procedure could cause
the engine to overheat and be
severely damaged.
If no problem is found, check to see
if coolant is visible in the coolant
surge tank. If coolant is visible but
the coolant level is not at the
indicated level mark, add a 50/
50 mixture of clean, drinkable water
and DEX-COOL coolant at the
coolant surge tank, but be sure the
cooling system, including the
coolant surge tank pressure cap, is
cool before you do it.
{Warning
Steam and scalding liquids from a
hot cooling system can blow out
and burn you badly. Never turn (Continued)
Warning (Continued)
the cap when the cooling system,
including the surge tank pressure
cap, is hot. Wait for the cooling
system and surge tank pressure
cap to cool.
Caution
In cold weather, water can freeze
and crack the engine, radiator,
heater core, and other parts. Use
the recommended coolant and
the proper coolant mixture.
{Warning
You can be burned if you spill
coolant on hot engine parts.
Coolant contains ethylene glycol
and it will burn if the engine parts
are hot enough. Do not spill
coolant on a hot engine.
1. Remove the coolant surge tankpressure cap when the cooling
system, including the coolant
surge tank pressure cap and
upper radiator hose, is no
longer hot.
Turn the pressure cap slowly
counterclockwise about
one-quarter of a turn. If you
hear a hiss, wait for that to
stop. This will allow any
pressure still left to be vented
out the discharge hose.
2. Keep turning the pressure cap slowly and remove it.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S/Canada-9086448) -
2016 - CRC - 5/20/15
264 Vehicle Care
3. Fill the coolant surge tank withthe proper DEX-COOL coolant
mixture to the indicated
level mark.
4. With the coolant surge tank pressure cap off, start the
engine and let it run until you
can feel the upper radiator
hose getting hot. Watch out for
the engine cooling fans.
By this time, the coolant level
inside the coolant surge tank
may be lower. If the level is
lower, add more of the proper
DEX-COOL coolant mixture to the coolant surge tank until the
level reaches the indicated
level mark.
5. Replace the pressure cap tightly.
Check the level in the coolant surge
tank when the cooling system has
cooled down. If the coolant is not at
the proper level, repeat Steps 1–
3 and reinstall the pressure cap.
If the coolant still is not at the proper
level when the system cools down
again, see your dealer.
Engine Overheating
There is a coolant temperature
gauge on the instrument cluster that
indicates an overheated engine
condition. See Engine Coolant
Temperature Gauge 0117.
If the decision is made not to lift the
hood when this warning appears,
get service help right away. See
Roadside Assistance Program
0 345.
If the decision is made to lift the
hood, make sure the vehicle is
parked on a level surface. Then check to see if the engine
cooling fans are running. If the
engine is overheating, the fans
should be running. If not, do not
continue to run the engine and have
the vehicle serviced.
Caution
Running the engine without
coolant may cause damage or a
fire. Vehicle damage would not be
covered by the vehicle warranty.
See
Overheated Engine
Protection Operating Mode 0265
for information on driving to a
safe place in an emergency.
If Steam Is Coming from the
Engine Compartment
See Overheated Engine Protection
Operating Mode 0265 for
information on driving to a safe
place in an emergency.