2019 CHEVROLET SILVERADO coolant

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
1500-11698642) - 2019 - CRC - 2/20/19
Vehicle Care 333
The vehicle has several indicators
to warn of engine overheating.
There is a coolant temperature
gauge in the vehicle's instrument
cluster. SeeEngine Coolant
Temperature Gauge 0146.
In addition, there are ENGINE
OVERHEATED STOP ENGINE,
ENGINE OVERHEATED IDLE
ENGINE, and ENGINE POWER IS
REDUCED messages in the Driver
Information Center (DIC).
If the decision is made not to lift the
hood when this warning appears,
get service help right away. See
Roadside Assistance Program
0 439.
If the decision is made to lift the
hood, make sure the vehicle is
parked on a level surface.
2.7L L4, 4.3L V6, 5.3L V8, and 6.2L
V8 Engines
Check to see if the engine cooling
fans are running. If the engine is
overheating, the fans should be running. If they are not, do not
continue to run the engine. Have the
vehicle serviced.
If Steam is Coming from the
Engine Compartment
{Warning
Steam and scalding liquids from a
hot cooling system are under
pressure. Turning the pressure
cap, even a little, can cause them
to come out at high speed and
you could be burned. Never turn
the cap when the cooling system,
including the pressure cap, is hot.
Wait for the cooling system and
pressure cap to cool.
If No Steam is Coming from
the Engine Compartment
The ENGINE OVERHEATED STOP
ENGINE or the ENGINE
OVERHEATED IDLE ENGINE
message, along with a low coolant
condition, can indicate a serious
problem.The 2.7L L4 engine will shut down
automatically if the ENGINE
OVERHEATED STOP ENGINE
message displays.
If there is an engine overheat
warning, but no steam is seen or
heard, the problem may not be too
serious. Sometimes the engine can
get a little too hot when the vehicle:
.
Climbs a long hill on a hot day.
. Stops after high-speed driving.
. Idles for long periods in traffic.
. Tows a trailer; see Trailer Towing
0 282.
If the ENGINE OVERHEATED
STOP ENGINE or the ENGINE
OVERHEATED IDLE ENGINE
message appears with no sign of
steam, try this for a minute or so: 1. Turn the air conditioning off.
2. Turn the heater on to the highest temperature and to the
highest fan speed. Open the
windows as necessary.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
1500-11698642) - 2019 - CRC - 2/20/19
334 Vehicle Care
3. When it is safe to do so, pull offthe road, shift to P (Park) or
N (Neutral) and let the
engine idle.
If the temperature overheat gauge is
no longer in the overheat zone or an
overheat warning no longer
displays, the vehicle can be driven.
Continue to drive the vehicle slowly
for about 10 minutes. Keep a safe
vehicle distance from the vehicle in
front. If the warning does not come
back on, continue to drive normally
and have the cooling system
checked for proper fill and function.
If the warning continues, pull over,
stop, and park the vehicle
right away.
If there is still no sign of steam and
the vehicle is equipped with an
engine driven cooling fan, push
down the accelerator until the
engine speed is about twice as fast
as normal idle speed for at least
five minutes while the vehicle is
parked. If the warning is still there,
turn off the engine and get everyone
out of the vehicle until it cools down. If there is no sign of steam, idle the
engine for five minutes while
parked. If the warning is still
displayed, turn off the engine until it
cools down.
Overheated Engine
Protection
Operating Mode
If an overheated engine condition
exists and the ENGINE POWER IS
REDUCED message displays, an
overheat protection mode which
alternates firing groups of cylinders
helps to prevent engine damage. In
this mode, a loss in power and
engine performance will be noticed.
This operating mode allows the
vehicle to be driven to a safe place
in an emergency. Driving extended
distances and/or towing a trailer in
the overheat protection mode
should be avoided.
Caution
After driving in the overheated
engine protection operating
mode, the engine oil will be
severely degraded. Any repairs
performed before the engine is
cool may cause engine damage.
Allow the engine to cool before
attempting any repair. Repair the
cause of coolant loss, change the
oil, and reset the oil life system.
See
Engine Oil 0322.
Engine Fan
The vehicle has electric cooling
fan(s). The fans may be heard
spinning at low speed during most
everyday driving. The fans may turn
off if no cooling is required. Under
heavy vehicle loading, trailer towing,
high outside temperatures,
or operation of the air conditioning
system, the fans may change to
high speed and an increase in fan
noise may be heard. This is normal
and indicates that the cooling
system is functioning properly. The

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
1500-11698642) - 2019 - CRC - 2/20/19
Vehicle Care 335
fans will change to low speed when
additional cooling is no longer
required.
The electric engine cooling fans
may run after the engine has been
turned off. This is normal and no
service is required.
Washer Fluid
What to Use
When windshield washer fluid needs
to be added, be sure to read the
manufacturer's instructions before
use. Use a fluid that has sufficient
protection against freezing in an
area where the temperature may fall
below freezing.
Adding Washer Fluid
The vehicle has a low washer fluid
message on the DIC that comes on
when the washer fluid is low. The
message is displayed for
15 seconds at the start of each
ignition cycle. When the WASHER
FLUID LOW ADD FLUID messagedisplays, washer fluid will need to
be added to the windshield washer
fluid reservoir.
Open the cap with the washer
symbol on it. Add washer fluid until
the tank is full. See
Engine
Compartment Overview 0317 for
reservoir location.
Caution
. Do not use washer fluid that
contains any type of water
repellent coating. This can
cause the wiper blades to
chatter or skip.
(Continued)
Caution (Continued)
.Do not use engine coolant
(antifreeze) in the
windshield washer. It can
damage the windshield
washer system and paint.
. Do not mix water with
ready-to-use washer fluid.
Water can cause the
solution to freeze and
damage the washer fluid
tank and other parts of the
washer system.
. When using concentrated
washer fluid, follow the
manufacturer instructions for
adding water.
. Fill the washer fluid tank
only three-quarters full when
it is very cold. This allows
for fluid expansion if
freezing occurs, which could
damage the tank if it is
completely full.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
1500-11698642) - 2019 - CRC - 2/20/19
Vehicle Care 367
Curb Weight:The weight of a
motor vehicle with standard and
optional equipment including the
maximum capacity of fuel, oil,
and coolant, but without
passengers and cargo.
DOT Markings
:A code molded
into the sidewall of a tire
signifying that the tire is in
compliance with the U.S.
Department of Transportation
(DOT) Motor Vehicle Safety
Standards. The DOT code
includes the Tire Identification
Number (TIN), an alphanumeric
designator which can also
identify the tire manufacturer,
production plant, brand, and
date of production.
GVWR
:Gross Vehicle Weight
Rating. See Vehicle Load Limits
0 210.
GAWR FRT
:Gross Axle Weight
Rating for the front axle. See
Vehicle Load Limits 0210. GAWR RR
:Gross Axle Weight
Rating for the rear axle. See
Vehicle Load Limits 0210.
Intended Outboard Sidewall
:
The side of an asymmetrical tire
that must always face outward
when mounted on a vehicle.
Kilopascal (kPa)
:The metric
unit for air pressure.
Light Truck (LT-Metric) Tire
:A
tire used on light duty trucks and
some multipurpose passenger
vehicles.
Load Index
:An assigned
number ranging from 1 to 279
that corresponds to the load
carrying capacity of a tire.
Maximum Inflation Pressure
:
The maximum air pressure to
which a cold tire can be inflated.
The maximum air pressure is
molded onto the sidewall. Maximum Load Rating
:The
load rating for a tire at the
maximum permissible inflation
pressure for that tire.
Maximum Loaded Vehicle
Weight
:The sum of curb
weight, accessory weight,
vehicle capacity weight, and
production options weight.
Normal Occupant Weight
:The
number of occupants a vehicle
is designed to seat multiplied by
68 kg (150 lb). See Vehicle Load
Limits 0210.
Occupant Distribution
:
Designated seating positions.
Outward Facing Sidewall
:The
side of an asymmetrical tire that
has a particular side that faces
outward when mounted on a
vehicle. The side of the tire that
contains a whitewall, bears
white lettering, or bears
manufacturer, brand, and/or
model name molding that is

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
1500-11698642) - 2019 - CRC - 2/20/19
418 Service and Maintenance
Air Conditioning Desiccant
(Replace Every Seven Years)
The air conditioning system requires
maintenance every seven years.
This service requires replacement of
the desiccant to help the longevity
and efficient operation of the air
conditioning system. This service
can be complex. See your dealer.
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. SeeTire
Rotation 0377.
. Check engine oil level and oil
life percentage. If needed,
change engine oil and filter, and
reset oil life system. See Engine
Oil 0322 and
Engine Oil Life System 0324.
. If equipped with the engine air
filter life system, check the air
filter life percentage.
If necessary, replace the engine
air filter and reset the engine air filter life system. See
Engine Air
Filter Life System 0326. If the
vehicle is not equipped with the
engine air filter life system,
inspect the engine air cleaner
filter. See Engine Air Cleaner/
Filter 0327.
. Check engine coolant level. See
Cooling System 0328.
. Check windshield washer fluid
level. See Washer Fluid 0335.
. Check tire inflation pressures,
including the spare. See Tire
Pressure 0369.
. Inspect tire wear. See Tire
Inspection 0377.
. Visually check for fluid leaks.
. Inspect brake system. See
Exterior Care 0405.
. Visually inspect steering,
suspension, and chassis
components for damage,
including cracks or tears in the
rubber boots, loose or missing
parts, or signs of wear at least
once a year. See Exterior Care
0 405. Lubricate the suspension and steering components at
least every other oil change.
(If equipped with grease fittings)
. Inspect power steering for
proper attachment, connections,
binding, leaks, cracks,
chafing, etc.
. Visually inspect drive shafts for
excessive wear, lubricant leaks
or damage including: tube dents,
cracks, constant velocity joint or
universal joint looseness,
cracked or missing boots, loose
or missing boot clamps, center
bearing excessive looseness,
missing or loose fasteners.
. Check restraint system
components. See Safety System
Check 084.
. Visually inspect fuel system for
damage or leaks.
. Visually inspect exhaust system
and nearby heat shields for
loose or damaged parts.
. Lubricate body components. See
Exterior Care 0405.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
1500-11698642) - 2019 - CRC - 2/20/19
Service and Maintenance 427
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
This maintenance section applies to vehicles with a gasoline engine. If the vehicle has a diesel engine, see
“Recommended Fluids and Lubricants”in the Duramax diesel supplement.
Fluids and lubricants identified below by name, part number, or specification can be obtained from your dealer.
Usage Fluid/Lubricant
Automatic Transmission (6-Speed Transmission) DEXRON-VI Automatic Transmission Fluid.
Automatic Transmission (8-Speed Transmission) DEXRON-HP Automatic Transmission Fluid.
Automatic Transmission (10-Speed Transmission) DEXRON ULV Automatic Transmission Fluid (GM Part No. 19352619, in
Canada 19352620).
Chassis Lubrication Chassis Lubricant (GM Part No. 12377985, in Canada 88901242) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL coolant. SeeCooling System 0328.
Engine Oil Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. See Engine Oil
0 322.
Front and Rear Axle Driveshaft Splines Spline Lubricant, Special Lubricant (GM Part No. 19257121, in
Canada 19257122).

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
1500-11698642) - 2019 - CRC - 2/20/19
Index 463
ChargingWireless . . . . . . . . . . . . . . . . . . . . . . 136
Charging System Light . . . . . . . . . 149
Check Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 150
Ignition Transmission Lock . . . 344
Child Restraints Infants and Young Children . . . 100
Lower Anchors and Tethersfor Children . . . . . . . . . . . . . . . . . 106
Older Children . . . . . . . . . . . . . . . . . . 99
Securing . . . . . . . . . . . . 117, 121, 124
Systems . . . . . . . . . . . . . . . . . . . . . . 103
Circuit Breakers . . . . . . . . . . . . . . . . 351
Cleaning Exterior Care . . . . . . . . . . . . . . . . . 405
Interior Care . . . . . . . . . . . . . . . . . . 410
Climate Control Systems . . . . . . . 189 Air Conditioning . . . . . . . . . . . . . . 189
Dual Automatic . . . . . . . . . . . . . . . 191
Heating . . . . . . . . . . . . . . . . . . . . . . . 189
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Cluster, Instrument . . . . . . . . . . . . . 139
Collision Damage Repair . . . . . . . 442
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . 125
Compass . . . . . . . . . . . . . . . . . . . . . . . 133 Connected Services
Connections . . . . . . . . . . . . . . . . . . 458
Diagnostics . . . . . . . . . . . . . . . . . . . 460
Navigation . . . . . . . . . . . . . . . . . . . . 457
Connections Connected Services . . . . . . . . . . 458
Control
Hill Descent . . . . . . . . . . . . . . . . . . 246
Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . 244
Control Light
Hill Descent . . . . . . . . . . . . . . . . . . 154
Control of a Vehicle . . . . . . . . . . . . . 199
Convex Mirrors . . . . . . . . . . . . . . . . . . 56
Coolant Engine Temperature Gauge . . 146
Engine Temperature
Warning Light . . . . . . . . . . . . . . . 156
Cooling . . . . . . . . . . . . . . . . . . . . 189, 191
Cooling System . . . . . . . . . . . . . . . . . 328
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . . 441
Cruise Control . . . . . . . . . . . . . . . . . . 251 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Cupholders . . . . . . . . . . . . . . . . . . . . . 125
Customer Assistance . . . . . . . . . . . 438
Offices . . . . . . . . . . . . . . . . . . . . . . . . 437 Customer Assistance (cont'd)
Text Telephone (TTY)
Users . . . . . . . . . . . . . . . . . . . . . . . 438
Customer Information
Publications OrderingInformation . . . . . . . . . . . . . . . . . . 444
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . 435
D
Damage Repair, Collision . . . . . . . 442
Danger, Warning, and Caution . . . . 2
Data CollectionInfotainment System . . . . . . . . . . 448
OnStar . . . . . . . . . . . . . . . . . . . . . . . 448
Data Recorders, Event . . . . . . . . . 447
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 180
Defensive Driving . . . . . . . . . . . . . . . 199
Delayed Locking . . . . . . . . . . . . . . . . . 46
Diagnostics
Connected Services . . . . . . . . . . 460
Differential, Limited-Slip . . . . . . . . 251
Distracted Driving . . . . . . . . . . . . . . . 198
Dome Lamps . . . . . . . . . . . . . . . . . . . 184
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . 159
Delayed Locking . . . . . . . . . . . . . . . . 46

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
1500-11698642) - 2019 - CRC - 2/20/19
464 Index
Door (cont'd)Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Power Locks . . . . . . . . . . . . . . . . . . . . 46
Drive Belt Routing, Engine . . . . . . 434
Driver Assistance Systems . . . . . 254
Driver Information
Center (DIC) . . . . . . . . . . . . . 160, 161
Driver Mode Control . . . . . . . . . . . . 247
Driver Mode Control Light . . . . . . 157
Driving Assistance Systems . . . . . . . . . . 261
Characteristics andTowing Tips . . . . . . . . . . . . . . . . . 277
Defensive . . . . . . . . . . . . . . . . . . . . . 199
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 199
For Better Fuel Economy . . . . . . . 30
Hill and Mountain Roads . . . . . . 207
If the Vehicle is Stuck . . . . . . . . . 209
Loss of Control . . . . . . . . . . . . . . . 201
Off-Road . . . . . . . . . . . . . . . . . . . . . 201
Off-Road Recovery . . . . . . . . . . . 200
Vehicle Load Limits . . . . . . . . . . . 210
Wet Roads . . . . . . . . . . . . . . . . . . . 206
Winter . . . . . . . . . . . . . . . . . . . . . . . . 207
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . 191E
E85 or FlexFuel . . . . . . . . . . . . . . . . 273
Electric Parking Brake . . . . . . . . . . 242
Electric Parking Brake Light . . . . 153
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 307
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 352
Fuses and Circuit Breakers . . . 351
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . 355, 358
Overload . . . . . . . . . . . . . . . . . . . . . 351
Electronic Stability Control
(ESC) Off Light . . . . . . . . . . . . . . . . 156
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . 450
Engine Air Cleaner/Filter . . . . . . . . . . . . . 327
Check Light (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . 150
Compartment Overview . . . . . . . 317
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 146
Coolant Temperature Warning Light . . . . . . . . . . . . . . . 156
Cooling System . . . . . . . . . . . . . . . 328
Drive Belt Routing . . . . . . . . . . . . 434 Engine (cont'd)
Exhaust . . . . . . . . . . . . . . . . . . . . . . 229
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
Heater . . . . . . . . . . . . . . . . . . . . . . . . 224
Oil Life System . . . . . . . . . . . . . . . 324
Oil Pressure Gauge . . . . . . . . . . 145
Oil Pressure Light . . . . . . . . . . . . 158
Overheated Protection
Operating Mode . . . . . . . . . . . . . 334
Overheating . . . . . . . . . . . . . . . . . . 332
Power Messages . . . . . . . . . . . . . 168
Running While Parked . . . . . . . . 229
Starting . . . . . . . . . . . . . . . . . . . . . . . 222
Engine Air Filter Life System . . . . 326
Entry Lighting . . . . . . . . . . . . . . . . . . . 185
Equipment, Towing . . . . . . . . . . . . . 286
Event Data Recorders . . . . . . . . . . 447
Exit Lighting . . . . . . . . . . . . . . . . . . . . 185
Extended Parking . . . . . . . . . . . . . . . 228
Extender, Seat Belt . . . . . . . . . . . . . . 84
Exterior Cargo Lamps . . . . . . . . . . 183
Exterior Lamp Controls . . . . . . . . . 177
Exterior Lamps Off Reminder . . . 179
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . 187