Air conditioning CHEVROLET SILVERADO 2019 User Guide

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 357
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.Fuses Usage
F1 Right doors
F2 Left doors
F3 Universal remote system
F4 –
F5 –
F6 Front blower
F8 Lumbar switch
F10 Body control module 6/Body control
module 7
F11 Seat/CLM
F12 Body control module 3/Body control
module 5
F14 Mirrors/Windows module
F17 Steering wheel controls
F18 VPM/OBS DET Fuses Usage
F19 DLIS
F20 Cooled seats
F21 NOT R/C
F22 Heated steering wheel
F23 MISC R/C
F24 Instrument panel cluster ignition/
Overhead
F25 Heating, ventilation, and air conditioning
ignition/Heating,
ventilation, and air
conditioning auxiliary
F26 USB ports/Special equipment option
retained accessory
power
F27 Accessory power outlet/retained
accessory power
F28 Accessory power outlet/Battery Fuses Usage
F30 Sensing and diagnostic module/
Parking brake
F31 Body control module 4
F32 Special equipment option/Data link
connection
F33 Body control module 8
F34 Cargo lamp
F40 CGM
F41 Infotainment 1
F42 TCP
F43 –
F44 AVM
F45 Body control module 2
F46 Heating, ventilation, and air conditioning/
Battery 1
F47 Instrument panel cluster/Battery
F48 Transmission control module

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
1500-11698642) - 2019 - CRC - 2/20/19
366 Vehicle Care
(2) Tire Width:The three-digit
number indicates the tire section
width in millimeters from
sidewall to sidewall.
(3) Aspect Ratio
:A two-digit
number that indicates the tire
height-to-width measurements.
For example, if the tire size
aspect ratio is 75, as shown in
item 3 of the light truck
(LT-Metric) tire illustration, it
would mean that the tire's
sidewall is 75 percent as high as
it is wide.
(4) Construction Code
:A letter
code is used to indicate the type
of ply construction in the tire.
The letter R means radial ply
construction; the letter D means
diagonal or bias ply
construction; and the letter B
means belted-bias ply
construction.
(5) Rim Diameter
:Diameter of
the wheel in inches.
(6) Load Range
:Load Range. (7) Service Description
:The
service description indicates the
load index and speed rating of a
tire. If two numbers are given as
in the example, 120/116, then
this represents the load index for
single versus dual wheel usage
(single/dual). The speed rating is
the maximum speed a tire is
certified to carry a load.
Tire Terminology and
Definitions
Air Pressure:The amount of
air inside the tire pressing
outward on each square inch of
the tire. Air pressure is
expressed in kPa (kilopascal)
or psi (pounds per square inch).
Accessory Weight
:The
combined weight of optional
accessories. Some examples of
optional accessories are
automatic transmission, power
windows, power seats, and air
conditioning. Aspect Ratio
:The relationship
of a tire's height to its width.
Belt
:A rubber coated layer of
cords between the plies and the
tread. Cords may be made from
steel or other reinforcing
materials.
Bead
:The tire bead contains
steel wires wrapped by steel
cords that hold the tire onto
the rim.
Bias Ply Tire
:A pneumatic tire
in which the plies are laid at
alternate angles less than
90 degrees to the centerline of
the tread.
Cold Tire Pressure
:The
amount of air pressure in a tire,
measured in kPa (kilopascal)
or psi (pounds per square inch)
before a tire has built up heat
from driving. See Tire Pressure
0 369.

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
432 Technical Data
Vehicle Data
Capacities and Specifications
The following approximate capacities are given in metric and English conversions. SeeRecommended Fluids and
Lubricants 0427.
If the vehicle has a diesel engine, see the Duramax diesel supplement.
Application Capacities
Metric English
Air Conditioning Refrigerant For the air conditioning system refrigerant type and charge amount, see the refrigerant label under thehood. See your dealer for more information.
Cooling System 2.7L L4 1500 Series 11.8 L 12.5 qt
4.3L V6 1500 Series 11.6 L 12.3 qt
5.3L V8 1500 Series (L82) 12.4 L 13.1 qt
5.3L V8 1500 Series (L84) 12.6 L 13.3 qt
6.2L V8 1500 Series 13.1 L 13.8 qt
Engine Oil with Filter 2.7L L4 1500 Series 5.7 L 6.0 qt
4.3L V6 1500 Series 5.7 L 6.0 qt
5.3L V8; 6.2L V8 1500 Series 7.6 L 8.0 qt

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
1500-11698642) - 2019 - CRC - 2/20/19
Index 461
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 314
Accessory Power . . . . . . . . . . . . . . . 226
Active Fuel Management . . . . . . . 228
Add-On Electrical Equipment . . . 307
Adding a Snow Plow or Similar Equipment . . . . . . . . . . . . . 308
Additional Information OnStar . . . . . . . . . . . . . . . . . . . . . . . 451
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . . . . 424
Adjustments Lumbar, Front Seats . . . . . . . . . . . . 71
Air Cleaner/Filter, Engine . . . . . . . 327
Air Conditioning . . . . . . . . . . . 189, 191
Air Filter Life System . . . . . . . . . . . . . . . . . . . 326
Air Filter, Passenger
Compartment . . . . . . . . . . . . . . . . . 195
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 195
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . 98
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . . . 90
Passenger Sensing System . . . . 92
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 90 Airbag System (cont'd)
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . . 91
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 89
Where Are the Airbags? . . . . . . . . 88
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . . . 97
Passenger Status Indicator . . . 148
Readiness Light . . . . . . . . . . . . . . 148
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . 96
System Check . . . . . . . . . . . . . . . . . . 86
Alarm Vehicle Security . . . . . . . . . . . . . . . . 53
Alert Lane Change . . . . . . . . . . . . . . . . . 268
Side Blind Zone (SBZA) . . . . . . 267
All-Season Tires . . . . . . . . . . . . . . . . 361
All-Terrain Tires . . . . . . . . . . . . . . . . . 362
Antilock Brake System (ABS) . . . 241 Warning Light . . . . . . . . . . . . . . . . . 153
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . 405
Interior . . . . . . . . . . . . . . . . . . . . . . . . 410
Assistance Program, Roadside . . . . . . . . . . . . . . . . . . . . . . 439

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