2020 CHEVROLET SILVERADO fog light

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13337620) - 2020 - CTC - 1/27/20
172 Lighting
moving up or down. This is normal.
If there is a problem, an alert will be
displayed.
The battery can be discharged at
idle if the electrical loads are very
high. This is true for all vehicles.
This is because the generator
(alternator) may not be spinning fast
enough at idle to produce all the
power that is needed for very high
electrical loads.
A high electrical load occurs when
several of the following are on, such
as: headlamps, high beams, fog
lamps, rear window defogger,
climate control fan at high speed,
heated seats, engine cooling fans,
trailer loads, and loads plugged into
accessory power outlets.
EPM works to prevent excessive
discharge of the battery. It does this
by balancing the generator's output
and the vehicle's electrical needs.
It can increase engine idle speed to
generate more power, whenever
needed. It can temporarily reduce
the power demands of some
accessories.Normally, these actions occur in
steps or levels, without being
noticeable. In rare cases at the
highest levels of corrective action,
this action may be noticeable to the
driver. If so, a DIC message might
be displayed and it is recommended
that the driver reduce the electrical
loads as much as possible.
Battery Power Protection
This feature shuts off the dome and
reading lamps, if they are left on for
more than 10 minutes after the
ignition is turned off. The cargo
lamp shuts off after 20 minutes. This
prevents the battery from
running down.
Exterior Lighting Battery
Saver
The exterior lamps turn off about
10 minutes after the ignition is
turned off, if the parking lamps or
headlamps have been manually left
on. This protects against draining
the battery. To restart the 10-minute
timer, turn the exterior lamp control
to the
Oposition and then back to
the
;or2position.
To keep the lamps on for more than
10 minutes, the ignition must be on
or in ACC/ACCESSORY.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13337620) - 2020 - CTC - 1/27/20
Climate Controls 175
Air Delivery Mode Controls :
Press
z,Y, or[to change the
direction of the airflow. Any
combination of the three controls
can be selected. An indicator light
comes on in the selected mode
button.
To change the current mode, select
one or more of the following. An
indicator light will illuminate:
z: Air is directed to the windshield,
outboard a/c outlets, and side
window outlets.
Y: Air is directed to the a/c outlets.
[:Air is directed to the floor
outlets, with some air directed to the
windshield, outboard a/c outlets,
and side window outlets.
0MAX : Air is directed to the
windshield and the fan runs at a
higher speed if not already above a
medium fan speed. This mode
overrides the previous mode
selected and clears fog or frost from
the windshield more quickly. When the control is pressed again, the
system returns to the previous mode
setting and fan speed.
For best results, clear all snow and
ice from the windshield before
defrosting.
@:
Press to turn on recirculation.
An indicator light comes on. Air is
recirculated to quickly cool the
inside of the vehicle. It can also be
used to help reduce outside air and
odors that enter the vehicle.
Avoid using recirculation for long
periods of time in cold or damp
conditions. Using recirculation in
cold or damp conditions can result
in window fogging.
A/C : Press to turn the air
conditioning on or off. An indicator
light comes on to show that the air
conditioning is enabled. If the fan is
turned off, the air conditioner will not
run. The A/C light will stay on even
if the outside temperatures are
below freezing.
Rear Window Defogger
1REAR : If equipped, press to
turn the rear window defogger on or
off. An indicator light on the button
comes on to show that the rear
window defogger is on.
The rear window defogger only
works when the engine is running.
The defogger turns off if the ignition
is turned off or to ACC/
ACCESSORY.
If equipped with heated outside
mirrors, press
fto turn them on or
off. See Heated Mirrors 041.
Caution
Using a razor blade or sharp
object to clear the inside rear
window can damage the rear
window defogger. Repairs would
not be covered by the vehicle
warranty. Do not clear the inside
rear window with sharp objects.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13337620) - 2020 - CTC - 1/27/20
178 Climate Controls
or passenger side temperature
display shows the temperature
setting increasing or decreasing.
SYNC :Press to link the passenger
temperature setting to the driver
setting. The SYNC indicator light will
turn on. When the passenger setting
is adjusted, the SYNC indicator light
will turn off.
Air Delivery Mode Control : Press
z,Y, or[to change the direction
of the airflow. Any combination of
the three controls can be selected.
An indicator light comes on in the
selected mode button.
Changing the mode cancels the
automatic operation and the system
goes into manual mode. Press
AUTO to return to automatic
operation.
To change the current mode, select
one or more of the following:
z: Air is directed to the windshield,
outboard a/c outlets, and side
window outlets.
Y: Air is directed to the a/c outlets.
[:Air is directed to the floor
outlets, with some air directed to the
windshield, outboard a/c outlets,
and side window outlets.
0MAX : Air is directed to the
windshield and the fan runs at a
higher speed if not already above a
medium fan speed. This mode
overrides the previous mode
selected and clears fog or frost from
the windshield more quickly. When
the control is pressed again, the
system returns to the previous mode
setting and fan speed.
For best results, clear all snow and
ice from the windshield before
defrosting.
@: Press to turn on recirculation.
An indicator light comes on. Air is
recirculated to quickly cool the
inside of the vehicle. It can also be
used to help reduce outside air and
odors that enter the vehicle.
Avoid using recirculation for long
periods of time in cold or damp
conditions. Using recirculation in
cold or damp conditions can result
in window fogging. A/C :
Press to turn the air
conditioning on or off. An indicator
light comes on to show that the air
conditioning is enabled. If the fan is
turned off, the air conditioner will not
run. The A/C light will stay on even
if the outside temperatures are
below freezing.
Rear Window Defogger
1REAR : If equipped, press to
turn the rear window defogger on or
off. An indicator light on the button
comes on to show that the rear
window defogger is on.
The rear window defogger only
works when the engine is running.
The defogger turns off if the ignition
is turned off or to ACC/
ACCESSORY.
If equipped with heated outside
mirrors, press
fto turn them on or
off. See Heated Mirrors 041.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13337620) - 2020 - CTC - 1/27/20
Driving and Operating 251
front camera. ACC will return to
normal operation once the cabin
temperature is lower.
Conditions that are associated with
low visibility, such as fog, rain,
snow, or road spray, may limit ACC
performance. Water droplets from
rain or snow that remain on the
windshield may also limit ACC’s
ability to detect objects.
Lighting Conditions Affecting ACC
The ACC front camera can be
affected by poor lighting conditions,
and ACC may have limited
performance when:
.There are changes in brightness,
such as entering and exiting
tunnels, bridges, and
overpasses.
. Low sun angles cause the
camera to not detect objects,
or it is more difficult to detect
objects in the same traffic lane.
. Lighting is poor in the evening or
early morning .
There are multiple changes in
brightness or shadows along the
vehicle roadway.
. In a tunnel without the
headlamps on, or in a tunnel
when there is a vehicle in front
that does not have its
taillamps on.
. Subjected to strong light from
opposing lane traffic in the front
of the vehicle, such as
high-beam headlamps from
oncoming traffic.
Accessory Installations and
Vehicle Modifications
Do not install or place any object
around the front camera windshield
area that would obstruct the front
camera view.
Do not install objects on top of the
vehicle that overhang and obstruct
the front camera, such as a canoe,
kayak, or other items that can be
transported on the vehicle roof.
Do not modify the hood, headlamps,
or fog lamps, as this may limit the
camera’s ability to detect an object. Cleaning the Sensing System
The camera sensor on the
windshield behind the rearview
mirror can become blocked by
snow, ice, dirt, mud, or debris. This
area needs to be cleaned for ACC
to operate properly.
The vehicle headlamps may need to
be cleaned due to dirt, snow, or ice.
Objects that are not illuminated
correctly may be difficult to detect.
If ACC will not operate, regular
cruise control may be available. See
“Switching Between ACC and
Regular Cruise Control”
previously
in this section. Always consider
driving conditions before using
either cruise control system.
For cleaning instructions, see
“Washing the Vehicle” under
Exterior Care 0424.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13337620) - 2020 - CTC - 1/27/20
Vehicle Care 431
Interior Glass
To clean, use a terry cloth fabric
dampened with water. Wipe droplets
left behind with a clean dry cloth.
If necessary, use a commercial
glass cleaner after cleaning with
plain water.
Caution
To prevent scratching, never use
abrasive cleaners on automotive
glass. Abrasive cleaners or
aggressive cleaning may damage
the rear window defogger.
Cleaning the windshield with water
during the first three to six months
of ownership will reduce tendency
to fog.
Speaker Covers
Vacuum around a speaker cover
gently, so that the speaker will not
be damaged. Clean spots with water
and mild soap.
Coated Moldings
Coated moldings should be cleaned.
. When lightly soiled, wipe with a
sponge or soft, lint-free cloth
dampened with water.
. When heavily soiled, use warm
soapy water.
Fabric/Carpet/Suede
Start by vacuuming the surface
using a soft brush attachment. If a
rotating vacuum brush attachment is
being used, only use it on the floor
carpet. Before cleaning, gently
remove as much of the soil as
possible:
.
Gently blot liquids with a paper
towel. Continue blotting until no
more soil can be removed.
. For solid soils, remove as much
as possible prior to vacuuming.
To clean: 1. Saturate a clean, lint-free colorfast cloth with water.
Microfiber cloth is
recommended to prevent lint
transfer to the fabric or carpet. 2. Remove excess moisture by
gently wringing until water does
not drip from the cleaning cloth.
3. Start on the outside edge of the soil and gently rub toward the
center. Fold the cleaning cloth
to a clean area frequently to
prevent forcing the soil in to the
fabric.
4. Continue gently rubbing the soiled area until there is no
longer any color transfer from
the soil to the cleaning cloth.
5. If the soil is not completely removed, use a mild soap
solution followed only by plain
water.
If the soil is not completely
removed, it may be necessary to
use a commercial upholstery
cleaner or spot lifter. Test a small
hidden area for colorfastness before
using a commercial upholstery
cleaner or spot lifter. If ring
formation occurs, clean the entire
fabric or carpet.
After cleaning use a paper towel to
blot excess moisture.

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

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13337620) - 2020 - CTC - 1/27/20
Index 487
L
Labeling, Tire Sidewall . . . . . . . . . . 377
LampsAuxiliary RoofMounted Lamp . . . . . . . . . . . . . . 168
Daytime Running (DRL) . . . . . . 165
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 170
Exterior Cargo . . . . . . . . . . . . . . . . 169
Exterior Controls . . . . . . . . . . . . . . 162
Exterior Lamps Off Reminder . . . . . . . . . . . . . . . . . . . 164
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . 172
License Plate . . . . . . . . . . . . . . . . . 366
Malfunction Indicator
(Check Engine) . . . . . . . . . . . . . 135
On Reminder . . . . . . . . . . . . . . . . . 144
Reading . . . . . . . . . . . . . . . . . . . . . . 170
Lane Change Alert (LCA) . . . . . . . 270
Lane Departure
Warning (LDW) . . . . . . . . . . . . . . . . 272
Lane Departure Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Lane Keep Assist (LKA) . . . . . . . . 274
Lane Keep Assist Light . . . . . . . . . 139
Lap-Shoulder Belt . . . . . . . . . . . . . . . 65 LATCH System
Replacing Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . 102
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . 89
LED Lighting . . . . . . . . . . . . . . . . . . . . 363
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . 171
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Illumination Control . . . . . . . . . . . 170
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 363
Task . . . . . . . . . . . . . . . . . . . . . . . . . . 168
Lights Airbag Readiness . . . . . . . . . . . . . 133
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . 138
Brake System Warning . . . . . . . 137
Charging System . . . . . . . . . . . . . 134
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . 135
Cruise Control . . . . . . . . . . . . . . . . 144
Door Ajar . . . . . . . . . . . . . . . . . . . . . 144
Driver Mode Control . . . . . . . . . . 142
Electric Parking Brake . . . . . . . . 137
Electronic Stability Control
(ESC), Off . . . . . . . . . . . . . . . . . . . 141
Engine Coolant Temperature Warning . . . . . . . 141 Lights (cont'd)
Engine Oil Pressure . . . . . . . . . . 143
Flash-to-Pass . . . . . . . . . . . . . . . . . 165
Four-Wheel-Drive . . . . . . . . . . . . . 138
Front Fog Lamp . . . . . . . . . . . . . . 144
High-Beam On . . . . . . . . . . . . . . . . 143
High/Low Beam Changer . . . . . 164
Hill Descent Control . . . . . . . . . . 139
Lane Departure Warning . . . . . . 139
Lane Keep Assist . . . . . . . . . . . . . 139
Low Fuel Warning . . . . . . . . . . . . 143
Seat Belt Reminders . . . . . . . . . . 132
Security . . . . . . . . . . . . . . . . . . . . . . 143
Service Electric Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . 138
Tire Pressure . . . . . . . . . . . . . . . . . 142
Tow/Haul Mode . . . . . . . . . . . . . . . 139
Traction Off . . . . . . . . . . . . . . . . . . . 140
Limited-Slip Differential . . . . . . . . . 239
Lock Steering Column . . . . . . . . . . . . . . . . 35
Locking Rear Axle . . . . . . . . . . . . . . 239
Locks Automatic Door . . . . . . . . . . . . . . . . . 27
Delayed Locking . . . . . . . . . . . . . . . . 27
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Lockout Protection . . . . . . . . . . . . . . 27
Power Door . . . . . . . . . . . . . . . . . . . . . 27

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13337620) - 2020 - CTC - 1/27/20
488 Index
Locks (cont'd)Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Loss of Control . . . . . . . . . . . . . . . . . 187
Low Fuel Warning Light . . . . . . . . . 143
Low-Profile Tires . . . . . . . . . . . . . . . . 376
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . . 89
Lumbar Adjustment . . . . . . . . . . . . . . 54 Front Seats . . . . . . . . . . . . . . . . . . . . . 54
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . 452
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . 445
Maintenance Schedule . . . . . . . . . 437
Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 448
Transfer Case . . . . . . . . . . . . . . . . 223
Malfunction Indicator Lamp . . . . . 135
Manual Mirrors . . . . . . . . . . . . . . . . . . 37
Manual Mode . . . . . . . . . . . . . . . . . . . 220
Manual Windows . . . . . . . . . . . . . . . . 45
Memory Seats . . . . . . . . . . . . . . . . . . . 56
Messages Engine Power . . . . . . . . . . . . . . . . 153
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 152 Messages (cont'd)
Vehicle Speed . . . . . . . . . . . . . . . . 153
Mirror Rear Camera . . . . . . . . . . . . . . . . . . . 43
Mirrors Automatic Dimming . . . . . . . . . . . . . 41
Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . . . 42
Blind Spot . . . . . . . . . . . . . . . . . . . . . . 41
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 37
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 40
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 41
Manual . . . . . . . . . . . . . . . . . . . . . . . . . 37
Manual Rearview . . . . . . . . . . . . . . . 42
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Tilt in Reverse . . . . . . . . . . . . . . . . . . 42
Trailer Tow . . . . . . . . . . . . . . . . . . . . . . 38
Mirrors, Interior Rearview . . . . . . . . 42
Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 234 Driver Control . . . . . . . . . . . . . . . . . 234
Monitor System, Tire
Pressure . . . . . . . . . . . . . . . . . . . . . . 385
N
NavigationConnected Services . . . . . . . . . . 478
New Vehicle Break-In . . . . . . . . . . . 204
Noise Control System . . . . . . . . . . 357
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . 128 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Off-Road . . . . . . . . . . . . . . . . . . . . . . . 188 Driving . . . . . . . . . . . . . . . . . . . . . . . . 188
Recovery . . . . . . . . . . . . . . . . . . . . . 187
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 335
Engine Oil Life System . . . . . . . 337
Engine Oil Pressure Gauge . . . 130
Pressure Light . . . . . . . . . . . . . . . . 143
Older Children, Restraints . . . . . . . 82
Online Owner Center . . . . . . . . . . . 461
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 471
OnStar Additional Information . . . . . . . . . . . . . . . . . . . . 474
OnStar Emergency . . . . . . . . . . . . . 473
OnStar Overview . . . . . . . . . . . . . . . 472
OnStar Security . . . . . . . . . . . . . . . . 474
Operating Mode Overheated EngineProtection . . . . . . . . . . . . . . . . . . . 348
Operation Fog Lamps . . . . . . . . . . . . . . . . . . . 167
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . .118
Overheated Engine Protection Operating Mode . . . . 348