oil CHEVROLET SILVERADO 2020 Service Manual

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13337620) - 2020 - CTC - 1/27/20
Service and Maintenance 443
Maintenance Schedule
Additional Required
Services - Severe12 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. Check
engine air filter life percentage and status.
Change engine air filter, if needed.
@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Replace passenger compartment air filter. (1)@ @@@@@
If the vehicle is not equipped with the engine air
filter life system, replace engine air cleaner
filter. (2)@ @@
Inspect evaporative control system. (3)@@@
Replace spark plugs. Inspect spark plug wires.
(Except 2.7L L4 Turbo Engine)@
Replace spark plugs. Inspect spark plug wires.
(2.7L L4 Turbo Engine Only)@ @
Change automatic transmission fluid and filter.@@@
For GVW under 3 900 kg (8,600 lb), change
transfer case fluid, if equipped with 4WD. (4)@@@
For GVW over 3 900 kg (8,600 lb), change
transfer case fluid, if equipped with 4WD. (4)@@@@@@

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13337620) - 2020 - CTC - 1/27/20
444 Service and Maintenance
Maintenance Schedule
Additional Required
Services - Severe12 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
Drain and fill engine cooling system. (5)@
Visually inspect accessory drive belts. (6)@
Replace brake fluid. (7)
Replace windshield wiper blades. (8)
@ @ @ @ @ @ @ @ @ @
Replace hood gas struts and tailgate
dampener. (9)@ @
Replace air conditioning desiccant. (10)
Footnotes—Maintenance
Schedule Additional Required
Services - Severe
(1) Or every two years, whichever
comes first. More frequent
replacement may be needed if the
vehicle is driven in areas with heavy
traffic, poor air quality, areas with
high dust levels or are sensitive to
environmental allergens. Filter
replacement may also be needed if
you notice reduced airflow, windows
fogging up, or odors. Your local GM Service location can help you
determine when it is the right time to
replace your filter.
(2)
Or every four years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed.
See Engine Air Cleaner/Filter 0340.
(3) Visually check all fuel and vapor
lines and hoses for proper
attachment, connection, routing, and
condition. (4)
Do not directly power wash the
transfer case and/or front/rear axle
output seals. High pressure water
can overcome the seals and
contaminate the fluid. Contaminated
fluid will decrease the life of the
transfer case and/or drive axles and
should be replaced.
(5) Or every five years, whichever
comes first. See Cooling System
0 342.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13337620) - 2020 - CTC - 1/27/20
Service and Maintenance 445
(6)Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage;
replace, if needed.
(7) Replace brake fluid every five
years. See Brake Fluid 0353.
(8) Or every 12 months, whichever
comes first. See Wiper Blade
Replacement 0360.
(9) Or every 10 years, whichever
comes first. See Gas Strut(s)0361.
(10) Replace air conditioning
desiccant every seven years.Special Application
Services
. Vehicles with Dual Wheels:
Check dual wheel nut torque at
160, 1 600, and 10 000 km (100,
1,000, and 6,000 mi) of driving.
Repeat this service whenever a
tire/wheel is serviced or
removed.
. Severe Commercial Use
Vehicles Only: Lubricate chassis
components every oil change.
. Have underbody flushing service
performed. See “Underbody
Maintenance” inExterior Care
0 424.
Additional
Maintenance and Care
Your vehicle is an important
investment and caring for it properly
may help to avoid future costly
repairs. To maintain vehicle
performance, additional
maintenance services may be
required.
It is recommended that your dealer
perform these services —their
trained dealer technicians know
your vehicle best. Your dealer can
also perform a thorough
assessment with a multi-point
inspection to recommend when your
vehicle may need attention.
The following list is intended to
explain the services and conditions
to look for that may indicate
services are required.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13337620) - 2020 - CTC - 1/27/20
446 Service and Maintenance
Battery
The 12-volt battery supplies power
to start the engine and operate any
additional electrical accessories.
.To avoid break-down or failure to
start the vehicle, maintain a
battery with full cranking power.
. Trained dealer technicians have
the diagnostic equipment to test
the battery and ensure that the
connections and cables are
corrosion-free.
Belts
. Belts may need replacing if they
squeak or show signs of
cracking or splitting.
. Trained dealer technicians have
access to tools and equipment
to inspect the belts and
recommend adjustment or
replacement when necessary.
Brakes
Brakes stop the vehicle and are
crucial to safe driving. .
Signs of brake wear may include
chirping, grinding, or squealing
noises, or difficulty stopping.
. Trained dealer technicians have
access to tools and equipment
to inspect the brakes and
recommend quality parts
engineered for the vehicle.
Fluids
Proper fluid levels and approved
fluids protect the vehicle’s systems
and components. See
Recommended Fluids and
Lubricants 0448 for GM approved
fluids.
. Engine oil and windshield
washer fluid levels should be
checked at every fuel fill.
. Instrument cluster lights may
come on to indicate that fluids
may be low and need to be
filled.
Hoses
Hoses transport fluids and should
be regularly inspected to ensure
that there are no cracks or leaks. With a multi-point inspection, your
dealer can inspect the hoses and
advise if replacement is needed.
Lamps
Properly working headlamps,
taillamps, and brake lamps are
important to see and be seen on
the road.
.
Signs that the headlamps need
attention include dimming, failure
to light, cracking, or damage.
The brake lamps need to be
checked periodically to ensure
that they light when braking.
. With a multi-point inspection,
your dealer can check the lamps
and note any concerns.
Shocks and Struts
Shocks and struts help aid in control
for a smoother ride.
. Signs of wear may include
steering wheel vibration, bounce/
sway while braking, longer
stopping distance, or uneven
tire wear.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13337620) - 2020 - CTC - 1/27/20
448 Service and Maintenance
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.
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 0342.
Engine Oil Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. See Engine Oil
0 335.
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-
13337620) - 2020 - CTC - 1/27/20
450 Service and Maintenance
Maintenance Replacement Parts
Replacement parts identified below by name, part number, or specification can be obtained from your dealer.
If the vehicle has a diesel engine, see the Duramax diesel supplement.Part GM Part Number ACDelco Part Number
Engine Air Cleaner/Filter With high capacity air cleaner 84121219 A3244C
Without high capacity air cleaner 84121217 A3246C
Oil Filter 2.7L L4 55495106 PF66
4.3L V6 12690385 PF63E
5.3L V8 12690385 PF63E
6.2L V8 12690385 PF63E
6.6L V8 12690385 PF63E
Passenger Compartment Air Filter 13508023 CF185
Spark Plugs 2.7L L4 12688094 41-106-IP
4.3L V6 12622441 41-114
5.3L V8 12622441 41-114
6.2L V8 12622441 41-114

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13337620) - 2020 - CTC - 1/27/20
454 Technical Data
Vehicle Data
Capacities and Specifications
The following approximate capacities are given in metric and English conversions. SeeRecommended Fluids and
Lubricants 0448.
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.
Engine Cooling System* 2.7L L4 Engine –1500 Series 11.8 L 12.4 qt
4.3L V6 Engine –1500 Series 11.5 L 12.2 qt
5.3L V8 Engine –1500 Series (L82) 12.8 L 13.5 qt
5.3L V8 Engine –1500 Series (L84) 13.1 L 13.8 qt
6.2L V8 Engine –1500 Series 12.6 L 13.3 qt
6.6L V8 Gas Engine –2500 Series and 3500 Series (L8T) 15.1 L 15.9 qt
Engine Oil with Filter 2.7L L4 Engine –1500 Series 5.7 L 6.0 qt
4.3L V6 Engine –1500 Series 5.7 L 6.0 qt

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13337620) - 2020 - CTC - 1/27/20
480 Connected Services
vehicles, the SSID and
password can be changed in
the Wi-Fi Hotspot menu.
After initial set-up, your vehicle’s
Wi-Fi hotspot will connect
automatically to your mobile
devices. Manage data usage by
turning Wi-Fi on or off on your
mobile device, using the
myChevrolet mobile app, or by
contacting an OnStar Advisor. On
some vehicles, Wi-Fi can also be
managed from the Wi-Fi
Hotspot menu.
MyChevrolet Mobile App (If
Available)
Download the myChevrolet mobile
app to compatible Apple and
Android smartphones. Chevrolet
users can access the following
services from a smartphone:
. Remotely start/stop the vehicle,
if factory-equipped.
. Lock/unlock doors, if equipped
with automatic locks.
. Activate the horn and lamps. .
Check the vehicle’s fuel level, oil
life, or tire pressure,
if factory-equipped with the Tire
Pressure Monitor System.
. Send destinations to the vehicle.
. Locate the vehicle on a map
(U.S. market only).
. Turn the vehicle's Wi-Fi hotspot
on/off, manage settings, and
monitor data consumption,
if equipped.
. Locate a dealer and schedule
service.
. Request roadside assistance.
. Set a parking reminder with pin
drop, take a photo, make a note,
and set a timer.
. Connect with Chevrolet on social
media.
Features are subject to change. For
myChevrolet mobile app information
and compatibility, see
my.chevrolet.com.
An active OnStar or connected
service plan may be required.
A compatible device, factory-installed remote start, and
power locks are required. Data rates
apply. See www.onstar.com for
details and system limitations.
Remote Services
Contact an OnStar Advisor to
unlock the doors or sound the horn
and flash the lamps.
Marketplace
OnStar Advisors can provide offers
from restaurants and retailers on
your route, help locate hotels,
or book a room. These services
vary by market.
Diagnostics
By monitoring and reporting on the
vehicle's key systems, OnStar
Advanced Diagnostics, if equipped,
provides a way to keep up on
maintenance. Capabilities vary by
model. See www.onstar.com for
details and system limitations.
Features are subject to change. For
updates on feature capabilities, see
my.chevrolet.com. Message and
data rates may apply.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13337620) - 2020 - CTC - 1/27/20
484 Index
Data CollectionInfotainment System . . . . . . . . . . 471
OnStar . . . . . . . . . . . . . . . . . . . . . . . 471
Data Recorders, Event . . . . . . . . . 470
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 165
Defensive Driving . . . . . . . . . . . . . . . 184
Delayed Locking . . . . . . . . . . . . . . . . . 27
Diagnostics
Connected Services . . . . . . . . . . 480
Differential, Limited-Slip . . . . . . . . 239
Distracted Driving . . . . . . . . . . . . . . . 184
Dome Lamps . . . . . . . . . . . . . . . . . . . 170
Door
Ajar Light . . . . . . . . . . . . . . . . . . . . . 144
Delayed Locking . . . . . . . . . . . . . . . . 27
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Power Locks . . . . . . . . . . . . . . . . . . . . 27
Drive Belt Routing, Engine . . . . . . 457
Driver Assistance Systems . . . . . 252
Driver Information Center (DIC) . . . . . . . . . . . . . 145, 146
Driver Mode Control . . . . . . . . . . . . 234
Driver Mode Control Light . . . . . . 142
Driving Assistance Systems . . . . . . . . . . 264
Better Fuel Economy . . . . . . . . . 183 Driving (cont'd)
Characteristics and
Towing Tips . . . . . . . . . . . . . . . . . 283
Defensive . . . . . . . . . . . . . . . . . . . . . 184
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 185
Hill and Mountain Roads . . . . . . 194
If the Vehicle is Stuck . . . . . . . . . 196
Loss of Control . . . . . . . . . . . . . . . 187
Off-Road . . . . . . . . . . . . . . . . . . . . . 188
Off-Road Recovery . . . . . . . . . . . 187
Vehicle Load Limits . . . . . . . . . . . 197
Wet Roads . . . . . . . . . . . . . . . . . . . 193
Winter . . . . . . . . . . . . . . . . . . . . . . . . 194
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . 176
E
E85 or FlexFuel . . . . . . . . . . . . . . . . 278
Electric Brake Boost . . . . . . . . . . . . 228
Electric Parking Brake . . . . . . . . . . 229
Electric Parking Brake Light . . . . 137
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 318
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 367
Fuses and Circuit Breakers . . . 366 Electrical System (cont'd)
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . 370, 372
Overload . . . . . . . . . . . . . . . . . . . . . 366
Electronic Stability Control (ESC) Off Light . . . . . . . . . . . . . . . . 141
Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . 473
Engine Air Cleaner/Filter . . . . . . . . . . . . . 340
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 135
Compartment Overview . . . . . . . 328
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 131
Coolant Temperature
Warning Light . . . . . . . . . . . . . . . 141
Cooling System . . . . . . . . . . . . . . . 342
Drive Belt Routing . . . . . . . . . . . . 457
Exhaust . . . . . . . . . . . . . . . . . . . . . . 216
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
Heater . . . . . . . . . . . . . . . . . . . . . . . . .211
Oil Life System . . . . . . . . . . . . . . . 337
Oil Pressure Gauge . . . . . . . . . . 130
Oil Pressure Light . . . . . . . . . . . . 143
Overheated Protection Operating Mode . . . . . . . . . . . . . 348
Overheating . . . . . . . . . . . . . . . . . . 347

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13337620) - 2020 - CTC - 1/27/20
Index 485
Engine (cont'd)Power Messages . . . . . . . . . . . . . 153
Running While Parked . . . . . . . . 217
Starting . . . . . . . . . . . . . . . . . . . . . . . 209
Engine Air Filter Life System . . . . 339
Entry Lighting . . . . . . . . . . . . . . . . . . . 171
Equipment, Towing . . . . . . . . . . . . . 292
Event Data Recorders . . . . . . . . . . 470
Exit Lighting . . . . . . . . . . . . . . . . . . . . 171
Extended Parking . . . . . . . . . . . . . . . 216
Extender, Seat Belt . . . . . . . . . . . . . . 68
Exterior Cargo Lamps . . . . . . . . . . 169
Exterior Lamp Controls . . . . . . . . . 162
Exterior Lamps Off Reminder . . . 164
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . 172
F
Fan
Engine . . . . . . . . . . . . . . . . . . . . . . . . 349
Filter, Engine Air Cleaner . . . . . . . . . . . 340
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 165
Flashers, Hazard Warning . . . . . . 166
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 401 Changing . . . . . . . . . . . . . . . . . . . . . 402
FlexFuel E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 278 Floor Console Storage . . . . . . . . . . 112
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 433
Fluid
Automatic Transmission . . . . . . 339
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 353
Four-Wheel DriveTransfer Case . . . . . . . . . . . . . . . 223
Power Steering . . . . . . . . . . . . . . . 350
Washer . . . . . . . . . . . . . . . . . . . . . . . 350
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 167
Folding Mirrors . . . . . . . . . . . . . . . . . . 40
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . 264
Four-Wheel Drive . . . . . . . . . . 223, 356
Four-Wheel-Drive Light . . . . . . . . . 138
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 468
Front Axle . . . . . . . . . . . . . . . . . . . . . . 357
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Front Pedestrian Braking
(FPB) System . . . . . . . . . . . . . . . . . 268
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . 52
Heated and Ventilated . . . . . . . . . . 58
Fuel Additives . . . . . . . . . . . . . . . . . . . . . 278
Economy, Driving for Better . . . 183 Fuel (cont'd)
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 282
Filling the Tank . . . . . . . . . . 279, 281
Foreign Countries . . . . . . . . . . . . 277
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 129
Low Fuel Warning Light . . . . . . . 143
Management, Active . . . . . . . . . . 215
Prohibited Fuels . . . . . . . . . . . . . . 277
Recommended . . . . . . . . . . 276, 277
Top Tier . . . . . . . . . . . . . . . . . . . . . . 276
Full-Size Spare Tire . . . . . . . . . . . . 414
Fuses
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 367
Fuses and Circuit Breakers . . . 366
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . 370, 372
G
Garage Door Opener . . . . . . . . . . . 158Programming . . . . . . . . . . . . . . . . . 158
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 361
Gauges Engine CoolantTemperature . . . . . . . . . . . . . . . . 131
Engine Oil Pressure . . . . . . . . . . 130
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 129