overheating CHEVROLET MALIBU 2019 Owner's Manual

Chevrolet Malibu Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12461813) - 2019 - crc - 12/11/18
24 In Brief
High Voltage Safety
Information
{Warning
Exposure to high voltage can
cause shock, burns, and even
death. The high voltage
components in the vehicle can
only be serviced by technicians
with special training.
High voltage components are
identified by labels. Do not
remove, open, take apart,
or modify these components.
High voltage cable or wiring has
orange covering or labels. Do not
probe, tamper with, cut, or modify
high voltage cable or wiring.
This vehicle has a high voltage
battery and a standard 12-volt
battery.
If the vehicle is in a crash, the
sensing system may shut down the
high voltage system. When this
occurs, the high voltage battery isdisconnected and the vehicle will
not start. The SERVICE VEHICLE
SOON message in the Driver
Information Center (DIC) will be
displayed. Before the vehicle can be
operated again, it must be serviced
at your dealer.
{Warning
Damage to the high voltage
battery or high voltage system
can create a risk of electric shock,
overheating, or fire.
If the vehicle is damaged from a
moderate to severe crash, flood,
fire, or other event, the vehicle
should be inspected as soon as
possible. Until the vehicle has
been inspected, store it outside at
least 15 m (50 ft) from any
structure or anything that can
burn. Ventilate the vehicle by
opening a window or a door.
(Continued)
Warning (Continued)
Contact Customer Assistance as
soon as possible to determine
whether an inspection is needed.
SeeCustomer Assistance Offices
0348.
SeeBattery - North America0257
for important safety information.
If an airbag has inflated, seeWhat
Will You See after an Airbag
Inflates?079.
Only a trained service technician
with the proper knowledge and tools
should inspect, test, or replace the
high voltage battery. See your
dealer if the high voltage battery
needs service.
Regenerative Braking
(Hybrid Only)
Regenerative braking takes some of
the energy from the moving vehicle
and turns it back into electrical
energy. This energy is then stored in
the high voltage battery system,

Chevrolet Malibu Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12461813) - 2019 - crc - 12/11/18
122 Instruments and Controls
Uplevel English
This gauge shows the engine
coolant temperature.
If the gauge pointer moves toward
the warning area at the high end of
the gauge, the engine is too hot.
The engine coolant temperature
warning light comes on when the
engine is too hot. SeeEngine
Coolant Temperature Warning Light
(Uplevel Only)0130.
This reading indicates the same
thing as the warning light. It means
that the engine coolant has
overheated. If the vehicle has been
operating under normal drivingconditions, pull off the road, stop the
vehicle, and turn off the engine as
soon as possible. SeeEngine
Overheating0253.
Seat Belt Reminders
Driver Seat Belt Reminder
Light
There is a driver seat belt reminder
light on the instrument cluster.
When the vehicle is started, this
light flashes and a chime may come
on to remind the driver to fasten
their seat belt. Then the light stays
on solid until the belt is buckled.
This cycle may continue several
times if the driver remains or
becomes unbuckled while the
vehicle is moving.If the driver seat belt is buckled,
neither the light nor the chime
comes on.
Passenger Seat Belt Reminder
Light
There is a passenger seat belt
reminder light near the passenger
airbag status indicator. See
Passenger Sensing System080.
When the vehicle is started, this
light flashes and a chime may come
on to remind passengers to fasten
their seat belt. Then the light stays
on solid until the belt is buckled.
This cycle continues several times if
the passenger remains or becomes
unbuckled while the vehicle is
moving.
If the passenger seat belt is
buckled, neither the chime nor the
light comes on.

Chevrolet Malibu Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12461813) - 2019 - crc - 12/11/18
130 Instruments and Controls
message may display. Check the
DIC messages to determine which
feature(s) is no longer functioning
and whether the vehicle requires
service.
If the light is on and flashing, the
TCS and/or the StabiliTrak/ESC
system is actively working.
SeeTraction Control/Electronic
Stability Control0192.
Engine Coolant
Temperature Warning
Light (Uplevel Only)
This light comes on briefly while
starting the vehicle.
If it does not, have the vehicle
serviced by your dealer. If the
system is working normally the
indicator light goes off.
Caution
The engine coolant temperature
warning light indicates that the
vehicle has overheated. Driving
with this light on can damage the
engine and it may not be covered
by the vehicle warranty. See
Engine Overheating0253.
The engine coolant temperature
warning light comes on when the
engine has overheated.
If this happens, pull over and turn
off the engine as soon as possible.
SeeEngine Overheating0253.
Tire Pressure Light
For vehicles with the Tire Pressure
Monitor System (TPMS), this light
comes on briefly when the engine is
started. It provides information
about tire pressures and the TPMS.
When the Light Is On Steady
This indicates that one or more of
the tires are significantly
underinflated.
A Driver Information Center (DIC)
tire pressure message may also
display. Stop as soon as possible,
and inflate the tires to the pressure
value shown on the Tire and
Loading Information label. SeeTire
Pressure0284.
When the Light Flashes First and
Then Is On Steady
If the light flashes for about a minute
and then stays on, there may be a
problem with the TPMS. If the
problem is not corrected, the light
will come on at every ignition cycle.
SeeTire Pressure Monitor
Operation0286.

Chevrolet Malibu Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12461813) - 2019 - crc - 12/11/18
170 Driving and Operating
Warning (Continued)
occupants could drown. Do not
ignore police warnings and be
very cautious about trying to drive
through flowing water.
Hydroplaning
Hydroplaning is dangerous. Water
can build up under the vehicle's
tires so they actually ride on the
water. This can happen if the road is
wet enough and you are going fast
enough. When the vehicle is
hydroplaning, it has little or no
contact with the road.
There is no hard and fast rule about
hydroplaning. The best advice is to
slow down when the road is wet.
Other Rainy Weather Tips
Besides slowing down, other wet
weather driving tips include:
.
Allow extra following distance.
.
Pass with caution..
Keep windshield wiping
equipment in good shape.
.
Keep the windshield washer fluid
reservoir filled.
.
Have good tires with proper
tread depth. SeeTires0276.
.
Turn off cruise control.
Hill and Mountain Roads
Driving on steep hills or through
mountains is different than driving
on flat or rolling terrain. Tips include:
.
Keep the vehicle serviced and in
good shape.
.
Check all fluid levels and brakes,
tires, cooling system, and
transmission.
.
Shift to a lower gear when going
down steep or long hills.
{Warning
Using the brakes to slow the
vehicle on a long downhill slope
can cause brake overheating, can
(Continued)
Warning (Continued)
reduce brake performance, and
could result in a loss of braking.
Shift the transmission to a lower
gear to let the engine assist the
brakes on a steep downhill slope.
{Warning
Coasting downhill in N (Neutral)
or with the ignition off is
dangerous. This can cause
overheating of the brakes and
loss of steering assist. Always
have the engine running and the
vehicle in gear.
.
Drive at speeds that keep the
vehicle in its own lane. Do not
swing wide or cross the
center line.
.
Be alert on top of hills;
something could be in your lane
(e.g., stalled car, crash).

Chevrolet Malibu Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12461813) - 2019 - crc - 12/11/18
226 Driving and Operating
Following Distance
Stay at least twice as far behind the
vehicle ahead as you would when
driving 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 of the vehicle and
trailer will not accelerate as quickly
and is much longer than the vehicle
alone. It is necessary to go much
farther beyond the passed vehicle
before returning to the lane. Pass
on level roadways. Avoid passing
on hills if possible.
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 that hand to the right.
Always back up slowly and,
if possible, have someone
guide you.
Making Turns
Caution
Turn more slowly and make wider
arcs when towing a trailer to
prevent damage to your vehicle.
Making very sharp turns could
cause the trailer to contact the
vehicle.
Make wider turns than normal when
towing, so trailer will not go over soft
shoulders, over curbs, or strike road
signs, trees, or other objects.
Always signal turns well in advance.
Do not steer or brake suddenly.
Driving on Grades
Reduce speed and shift to a lower
gear before starting down a long or
steep downhill grade. If the
transmission is not shifted down, the
brakes may overheat and result in
reduced braking efficiency.The vehicle 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 higher altitudes,
engine coolant will boil at a lower
temperature than at lower altitudes.
If the engine is turned off
immediately after towing at high
altitude on steep uphill grades, the
vehicle could show signs similar to
engine overheating. To avoid this,
let the engine run, preferably on
level ground, with the transmission
in P (Park) for a few minutes before
turning the engine off. If the
overheat warning comes on, see
Engine Overheating0253.Parking on Hills
{Warning
To prevent serious injury or death,
always park your vehicle and
trailer on a level surface when
possible.

Chevrolet Malibu Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12461813) - 2019 - crc - 12/11/18
Driving and Operating 227
When parking your vehicle and your
trailer 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.
2. Have someone place chocks
under the trailer wheels.
3. When the wheel chocks are in
place, gradually release the
brake pedal to allow the chocks
to absorb the load of the trailer.
4. Reapply the brake pedal. Then
apply the parking brake and
shift into P (Park).
5. Release the brake pedal.
Leaving After Parking on a Hill
1. Apply and hold the brake
pedal.
.
Start the engine.
.
Shift into a gear.
.
Release the parking brake.
2. Let up on the brake pedal.3. Drive slowly until the trailer is
clear of the chocks.
4. Stop and have someone pick
up and store the chocks.
Maintenance When Trailer
Towing
The vehicle needs service more
often when used to tow trailers. See
Maintenance Schedule0329. It is
especially important to check the
automatic transmission fluid, engine
oil, axle lubricant, belts, cooling
system, and brake system before
and during each trip.
Check periodically that all nuts and
bolts on the trailer hitch are tight.
Engine Cooling When Trailer
Towing
The cooling system may temporarily
overheat during severe operating
conditions. SeeEngine Overheating
0253.
Trailer Towing
Caution
Towing a trailer improperly can
damage the vehicle and result in
costly repairs not covered by the
vehicle warranty. To tow a trailer
correctly, follow the directions in
this section and see your dealer
for important information about
towing a trailer with the vehicle.
Trailer Weight
{Warning
Never exceed the towing capacity
for your vehicle.
Safe trailering requires monitoring
the weight, speed, altitude, road
grades, outside temperature,
dimensions of the front of the trailer,
and how frequently the vehicle is
used to tow a trailer.
Before towing a trailer, always
separately weigh:

Chevrolet Malibu Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12461813) - 2019 - crc - 12/11/18
232 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . 233
California Proposition
65 Warning . . . . . . . . . . . . . . . . . 234
California Perchlorate
Materials Requirements . . . . . 234
Accessories and
Modifications . . . . . . . . . . . . . . . . 234
Vehicle Checks
Doing Your Own
Service Work . . . . . . . . . . . . . . . 235
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 235
Engine Compartment
Overview . . . . . . . . . . . . . . . . . . . . 237
Engine Oil . . . . . . . . . . . . . . . . . . . . 242
Engine Oil Life System . . . . . . . 245
Automatic Transmission
Fluid . . . . . . . . . . . . . . . . . . . . . . . . 246
Engine Air Filter Life
System . . . . . . . . . . . . . . . . . . . . . . 246
Engine Air Cleaner/Filter . . . . . . 247
Cooling System (Engine) . . . . . 248
Cooling System (Power
Electronics) . . . . . . . . . . . . . . . . . 253
Engine Overheating . . . . . . . . . . 253
Washer Fluid . . . . . . . . . . . . . . . . . 254Brakes . . . . . . . . . . . . . . . . . . . . . . . 255
Brake Fluid . . . . . . . . . . . . . . . . . . . 256
Battery - North America . . . . . . 257
Starter Switch Check . . . . . . . . . 260
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 260
Park Brake and P (Park)
Mechanism Check . . . . . . . . . . 260
Wiper Blade Replacement . . . . 261
Windshield Replacement . . . . . 262
Gas Strut(s) . . . . . . . . . . . . . . . . . . 262Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 263
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 263
Halogen Bulbs . . . . . . . . . . . . . . . . 263
LED Lighting . . . . . . . . . . . . . . . . . 264
Headlamps, Front Turn Signal,
Sidemarker, and Parking
Lamps . . . . . . . . . . . . . . . . . . . . . . 264
Taillamps, Turn Signal,
Stoplamps, and Back-Up
Lamps (LS and LT) . . . . . . . . . . 264
Taillamps, Turn Signal,
Stoplamps, and Back-Up
Lamps (LT and Premier) . . . . . 266
License Plate Lamp . . . . . . . . . . 266
Electrical System
High Voltage Devices and
Wiring . . . . . . . . . . . . . . . . . . . . . . . 267
Electrical System Overload . . . 267
Fuses and Circuit Breakers . . . 268
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 268
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 273
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 276
All-Season Tires . . . . . . . . . . . . . . 277
Winter Tires . . . . . . . . . . . . . . . . . . 277
Low-Profile Tires . . . . . . . . . . . . . 277
Summer Tires . . . . . . . . . . . . . . . . 278
Tire Sidewall Labeling . . . . . . . . 278
Tire Designations . . . . . . . . . . . . . 280
Tire Terminology and
Definitions . . . . . . . . . . . . . . . . . . 281
Tire Pressure . . . . . . . . . . . . . . . . . 284
Tire Pressure for High-Speed
Operation . . . . . . . . . . . . . . . . . . . 285
Tire Pressure Monitor
System . . . . . . . . . . . . . . . . . . . . . . 285
Tire Pressure Monitor
Operation . . . . . . . . . . . . . . . . . . . 286
Tire Inspection . . . . . . . . . . . . . . . . 291
Tire Rotation . . . . . . . . . . . . . . . . . 291

Chevrolet Malibu Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 249
1.5L L4 Turbo Engine
1.8L L4 Hybrid Engine
2.0L L4 Turbo Engine
1. Engine Cooling Fan (Out
of View)
2. Coolant Surge Tank and
Pressure Cap
{Warning
An underhood electric fan 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
Do not touch heater or radiator
hoses, or other engine parts.
They can be very hot and can
burn you. Do not run the engine if
there is a leak; all coolant could
leak out. That could cause an
engine fire and can burn you. Fix
any leak before driving the
vehicle.
Engine Coolant
The cooling system in the vehicle is
filled with DEX-COOL engine
coolant mixture. SeeRecommended
Fluids and Lubricants0338and
Maintenance Schedule0329.
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,
seeEngine Overheating0253.

Chevrolet Malibu Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12461813) - 2019 - crc - 12/11/18
Vehicle Care 253
Cooling System (Power
Electronics)
The power electronics cooling
system keeps the hybrid propulsion
system within a normal operating
temperature range.
What to Use
The power electronics coolant
reservoir in the vehicle is filled with
GM Premix DEX-COOL coolant.
If using this mixture, nothing else
needs to be added.
The coolant needs to be replaced at
the appropriate interval. See
Maintenance Schedule0329.
Checking Coolant
The vehicle must be on a level
surface when checking the coolant
level.
The power electronics coolant
reservoir is located in the engine
compartment. SeeEngine
Compartment Overview0237.
Check to see if coolant is visible in
the power electronics coolant
reservoir. If coolant is visible but the
coolant level is below the indicated
mark, there could be a leak in the
cooling system.
The power electronics coolant
should only be serviced by a
qualified technician.
Engine Overheating
The vehicle has an engine coolant
temperature gauge on the
instrument cluster to warn of engine
overheating. SeeEngine Coolant
Temperature Gauge0121.If the decision is made not to lift the
hood when this warning appears,
get service help right away. Contact
your dealer for additional
information.
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, both fans
should be running. If they are not,
do not continue to run the engine.
Have the vehicle serviced.
Caution
Do not run the engine if there is a
leak in the engine cooling system.
This can cause a loss of all
coolant and can damage the
system and vehicle. Have any
leaks fixed right away.

Chevrolet Malibu Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12461813) - 2019 - crc - 12/11/18
Vehicle Care 257
When the brake fluid falls to a low
level, the brake warning light comes
on. SeeBrake System Warning
Light0126.
Brake fluid absorbs water over time
which degrades the effectiveness of
the brake fluid. Replace brake fluid
at the specified intervals to prevent
increased stopping distance. See
Maintenance Schedule0329.
What to Add
Use only GM approved DOT 3
brake fluid from a clean, sealed
container. SeeRecommended
Fluids and Lubricants0338.
{Warning
The wrong or contaminated brake
fluid could result in damage to the
brake system. This could result in
the loss of braking leading to a
possible injury. Always use the
proper GM approved brake fluid.
Caution
If brake fluid is spilled on the
vehicle's painted surfaces, the
paint finish can be damaged.
Immediately wash off any painted
surface.
Battery - North America
The original equipment battery is
maintenance free. Do not remove
the cap and do not add fluid.
The non-hybrid vehicle has a
standard 12-volt battery under the
hood. SeeEngine Compartment
Overview0237.
Refer to the replacement number
shown on the original battery label
when a new 12-volt battery is
needed.
Hybrid Vehicle
The hybrid vehicle 12-volt battery is
in the trunk on the driver side.
Hybrid vehicles also have a high
voltage battery. Only a trained
service technician with the properknowledge and tools should inspect,
test, or replace the high voltage
battery. See your dealer if the high
voltage battery needs service. The
dealer has information on how to
recycle the high voltage battery.
The hybrid high voltage battery is
cooled with air drawn from the
vehicle interior. The cold air intake
for the battery is under the rear
seat. Do not block the area in front
of the cold air intake.
{Warning
Damage to the high voltage
battery or high voltage system
can create a risk of electric shock,
overheating, or fire.
If the vehicle is damaged from a
moderate to severe crash, flood,
fire, or other event, the vehicle
should be inspected as soon as
possible. Until the vehicle has
been inspected, store it outside at
least 15 m (50 ft) from any
(Continued)