service indicator CHEVROLET SILVERADO 2500 2018 User Guide

Chevrolet Silverado LD 1500 and Silverado 2500/3500 Owner Manual (GMNA-
Localizing-U.S./Canada-12162993) - 2019 - crc - 4/4/18
Instruments and Controls 153
Low Fuel Warning Light
This light is near the fuel gauge and
comes on briefly when the ignition is
turned on as a check to show it is
working.
It also comes on when the fuel tank
is low on fuel. The light turns off
when fuel is added. If it does not,
have the vehicle serviced.
Security Light
The security light should come on
briefly as the engine is started. If it
does not come on, have the vehicleserviced by your dealer. If the
system is working normally, the
indicator light turns off.
If the light stays on and the engine
does not start, there could be a
problem with the theft-deterrent
system. See
Immobilizer Operation
0 45.
High-Beam On Light
This light comes on when the
high-beam headlamps are in use.
See Headlamp High/Low-Beam
Changer 0173.
IntelliBeam®Light
This light comes on when the
IntelliBeam system, if equipped, is
enabled.
See Exterior Lamp Controls 0171.
Front Fog Lamp Light
For vehicles with fog lamps, this
light comes on when the fog lamps
are on.
The light goes out when the fog
lamps are turned off. See Fog
Lamps 0176.

Chevrolet Silverado LD 1500 and Silverado 2500/3500 Owner Manual (GMNA-
Localizing-U.S./Canada-12162993) - 2019 - crc - 4/4/18
248 Driving and Operating
{Warning
Turning off the vehicle while
moving may cause loss of power
assist in the brake and steering
systems and disable the airbags.
While driving, turn off the vehicle
only in an emergency.
In an emergency, if the vehicle
cannot be pulled over and must be
turned off while driving: 1. Push the key all the way in toward the steering column,
then turn the key to ACC/
ACCESSORY.
2. Brake using firm and steady pressure. Do not pump the
brakes repeatedly. This may
deplete power assist, requiring
increased brake pedal force.
3. Shift the vehicle to N (Neutral). This can be done while the
vehicle is moving. Continue
braking and steer the vehicle to
a safe location. 4. Come to a complete stop. Shift
to P (Park) with an automatic
transmission, or Neutral with a
manual transmission. Push the
key all the way in toward the
steering column, then turn the
ignition to LOCK/OFF.
5. Set the parking brake. See Parking Brake 0271.
Caution
Use the correct key, make sure it
is all the way in —or pushed all
the way in toward the steering
column when turning off the
vehicle —and turn it only with
your hand.
1 (ACC/ACCESSORY) : This
position allows features such as the
infotainment system to operate
while the vehicle is off. It also
unlocks the steering column,
if equipped with a locking steering
column. Use this position if the
vehicle must be pushed or towed.
See Retained Accessory Power
(RAP) 0251. From ON/RUN, push the key all the
way in toward the steering column,
then turn the key to ACC/
ACCESSORY.
If the key is left in ACC/
ACCESSORY with the engine off,
the battery could drain and the
vehicle may not start.
A warning chime will sound when
the driver door is opened and the
key is in the ignition.
2 (ON/RUN) :
This position can be
used to operate the electrical
accessories and to display some
instrument cluster warning and
indicator lights. This position can
also be used for service and
diagnostics, and to verify the proper
operation of the malfunction
indicator lamp as may be required
for emission inspection purposes.
The switch stays in this position
when the engine is running. The
transmission is also unlocked in this
position on automatic transmission
vehicles.

Chevrolet Silverado LD 1500 and Silverado 2500/3500 Owner Manual (GMNA-
Localizing-U.S./Canada-12162993) - 2019 - crc - 4/4/18
284 Driving and Operating
Collision Alert
When your vehicle approaches
another detected vehicle too rapidly,
the red FCA display will flash on the
windshield. Also, eight rapid
high-pitched beeps will sound from
the front, or both sides of the Safety
Alert Seat will pulse five times.
When this Collision Alert occurs, the
brake system may prepare for driver
braking to occur more rapidly which
can cause a brief, mild deceleration.
Continue to apply the brake pedal
as needed. Cruise control may be
disengaged when the Collision Alert
occurs.Tailgating Alert
The vehicle ahead indicator will
display amber when you are
following a detected vehicle ahead
much too closely.
Selecting the Alert Timing
The Collision Alert control is on the
steering wheel. Press
[to set the
FCA timing to Far, Medium, Near,
or Off. The first button press shows
the current setting on the DIC.
Additional button presses will
change this setting. The chosen
setting will remain until it is changed
and will affect the timing of both the
Collision Alert and the Tailgating
Alert features. The timing of both
alerts will vary based on vehicle
speed. The faster the vehicle speed,
the farther away the alert will occur.
Consider traffic and weather
conditions when selecting the alert
timing. The range of selectable alert
timing may not be appropriate for all
drivers and driving conditions.
Unnecessary Alerts
FCA may provide unnecessary
alerts for turning vehicles, vehicles
in other lanes, objects that are not
vehicles, or shadows. These alerts
are normal operation and the
vehicle does not need service.

Chevrolet Silverado LD 1500 and Silverado 2500/3500 Owner Manual (GMNA-
Localizing-U.S./Canada-12162993) - 2019 - crc - 4/4/18
Driving and Operating 287
Warning (Continued)
If LDW only detects lane
markings on one side of the road,
it will only warn you when
departing the lane on the side
where it has detected a lane
marking. Always keep your
attention on the road and
maintain proper vehicle position
within the lane, or vehicle
damage, injury, or death could
occur. Always keep the
windshield, headlamps, and
camera sensors clean and in
good repair. Do not use LDW in
bad weather conditions.
How the System Works
The LDW camera sensor is on the
windshield ahead of the rearview
mirror.
To turn LDW on and off, press
@on
the center stack. The control
indicator will light when LDW is on.
When LDW is on,@is green if
LDW is available to warn of a lane
departure. If the vehicle crosses a
detected lane marking without using
the turn signal in that direction,
@
changes to amber and flashes.
Additionally, there may be three
beeps, or the driver seat may pulse
three times on the right or left,
depending on the lane departure
direction.
When the System Does Not
Seem to Work Properly
The system may not detect lanes as
well when there are:
. Close vehicles ahead.
. Sudden lighting changes, such
as when driving through tunnels.
. Banked roads. If the LDW system is not functioning
properly when lane markings are
clearly visible, cleaning the
windshield may help.
LDW alerts may occur due to tar
marks, shadows, cracks in the road,
temporary or construction lane
markings, or other road
imperfections. This is normal system
operation; the vehicle does not need
service. Turn LDW off if these
conditions continue.
Lane Keep Assist (LKA)
(1500 Series)
If equipped, LKA may help avoid
crashes due to unintentional lane
departures. It may assist by gently
turning the steering wheel if the
vehicle approaches a detected lane
marking without using a turn signal
in that direction. It may also provide
a Lane Departure Warning (LDW)
system alert as the lane marking is
crossed. The LKA system will not
assist or provide an LDW alert if it
detects that you are actively
steering. Override LKA by turning
the steering wheel. LKA uses a

Chevrolet Silverado LD 1500 and Silverado 2500/3500 Owner Manual (GMNA-
Localizing-U.S./Canada-12162993) - 2019 - crc - 4/4/18
318 Driving and Operating
Conversions and
Add-Ons
Add-On Electrical
Equipment
{Warning
The Data Link Connector (DLC) is
used for vehicle service and
Emission Inspection/Maintenance
testing. SeeMalfunction Indicator
Lamp 0146. A device connected
to the DLC —such as an
aftermarket fleet or
driver-behavior tracking device —
may interfere with vehicle
systems. This could affect vehicle
operation and cause a crash.
Such devices may also access
information stored in the vehicle’s
systems.
Caution
Some electrical equipment can
damage the vehicle or cause
components to not work and
would not be covered by the
vehicle warranty. Always check
with your dealer before adding
electrical equipment.
Add-on equipment can drain the
vehicle's 12-volt battery, even if the
vehicle is not operating.
The vehicle has an airbag system.
Before attempting to add anything
electrical to the vehicle, see
Servicing the Airbag-Equipped
Vehicle 088 and Adding Equipment
to the Airbag-Equipped Vehicle
0 89.
For information on wiring auxiliary
switches, see www.gmupfitter.com
or contact your dealer.
Snow Plow Prep Wiring
Package
These wiring provisions are
included with RPO VYU (Snow Plow
Prep Package) only. These
provisions are for use with a snow
plow installed. The harness should
be installed by your dealer or
qualified service center.
Adding a Snow Plow or
Similar Equipment
Caution
Do not exceed 72 km/h (45 mph)
with a snow plow mounted to the
vehicle. The vehicle could
overheat and be damaged.

Chevrolet Silverado LD 1500 and Silverado 2500/3500 Owner Manual (GMNA-
Localizing-U.S./Canada-12162993) - 2019 - crc - 4/4/18
Vehicle Care 343
6. Verify coolant level after theengine is shut off and the
coolant is cold. If necessary,
repeat coolant fill procedure
Steps 1–6.
Caution
If the pressure cap is not tightly
installed, coolant loss and engine
damage may occur. Be sure the
cap is properly and tightly
secured.
Engine Overheating
If the vehicle has the Duramax
diesel engine, see the Duramax
diesel supplement.
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. The vehicle has several indicators
to warn of engine overheating.
There is a coolant temperature
gauge in the vehicle's instrument
cluster. See
Engine Coolant
Temperature Gauge 0141.
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
0 453.
If the decision is made to lift the
hood, make sure the vehicle is
parked on a level surface.
5.3L V8 Engine
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.

Chevrolet Silverado LD 1500 and Silverado 2500/3500 Owner Manual (GMNA-
Localizing-U.S./Canada-12162993) - 2019 - crc - 4/4/18
Vehicle Care 347
Caution
.Do not use washer fluid that
contains any type of water
repellent coating. This can
cause the wiper blades to
chatter or skip.
. 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
(Continued)
Caution (Continued)
for fluid expansion if
freezing occurs, which could
damage the tank if it is
completely full.
Brakes
Disc brake pads have built-in wear
indicators that make a high-pitched
warning sound when the brake pads
are worn and new pads are needed.
The sound can come and go or be
heard all the time the vehicle is
moving, except when applying the
brake pedal firmly.
{Warning
The brake wear warning sound
means that soon the brakes will
not work well. That could lead to
a crash. When the brake wear
warning sound is heard, have the
vehicle serviced.
Caution
Continuing to drive with worn-out
brake pads could result in costly
brake repair.
Some driving conditions or climates
can cause a brake squeal when the
brakes are first applied or lightly
applied. This does not mean
something is wrong with the brakes.
Properly torqued wheel nuts are
necessary to help prevent brake
pulsation. When tires are rotated,
inspect brake pads for wear and
evenly tighten wheel nuts in the
proper sequence to torque
specifications in Capacities and
Specifications 0446.
Brake linings should always be
replaced as complete axle sets.
Brake Pedal Travel
See your dealer if the brake pedal
does not return to normal height,
or if there is a rapid increase in
pedal travel. This could be a sign
that brake service may be required.

Chevrolet Silverado LD 1500 and Silverado 2500/3500 Owner Manual (GMNA-
Localizing-U.S./Canada-12162993) - 2019 - crc - 4/4/18
438 Service and Maintenance
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.
. As part of the multi-point
inspection, trained dealer
technicians can visually inspect
the shocks and struts for signs of leaking, blown seals,
or damage, and can advise
when service is needed.
Tires
Tires need to be properly inflated,
rotated, and balanced. Maintaining
the tires can save money and fuel,
and can reduce the risk of tire
failure.
. Signs that the tires need to be
replaced include three or more
visible treadwear indicators; cord
or fabric showing through the
rubber; cracks or cuts in the
tread or sidewall; or a bulge or
split in the tire.
. Trained dealer technicians can
inspect and recommend the right
tires. Your dealer can also
provide tire/wheel balancing
services to ensure smooth
vehicle operation at all speeds.
Your dealer sells and services
name brand tires. Vehicle Care
To help keep the vehicle looking like
new, vehicle care products are
available from your dealer. For
information on how to clean and
protect the vehicle’s interior and
exterior, see
Interior Care 0423 and
Exterior Care 0418.
Wheel Alignment
Wheel alignment is critical for
ensuring that the tires deliver
optimal wear and performance.
. Signs that the alignment may
need to be adjusted include
pulling, improper vehicle
handling, or unusual tire wear.
. Your dealer has the required
equipment to ensure proper
wheel alignment.
Windshield
For safety, appearance, and the
best viewing, keep the windshield
clean and clear.
. Signs of damage include
scratches, cracks, and chips.

Chevrolet Silverado LD 1500 and Silverado 2500/3500 Owner Manual (GMNA-
Localizing-U.S./Canada-12162993) - 2019 - crc - 4/4/18
Index 477
CaliforniaPerchlorate Materials
Requirements . . . . . . . . . . . . . . . 325
California Proposition
65 Warning . . . . . . . . . .325, 349, 408, Back Cover
Canadian Vehicle Owners . . . . . . . . 2
Capacities and Specifications . . . . . . . . . . . . . . . . . 446
Carbon Monoxide
Engine Exhaust . . . . . . . . . . . . . . . 255
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . 42
Winter Driving . . . . . . . . . . . . . . . . 236
Cargo Tie-Downs . . . . . . . . . . . . . . . . . . . . 124
Caution, Danger, and Warning . . . . 3
Center Console Storage . . . . . . . . 123
Center High-Mounted Stoplamp (CHMSL) and
Cargo Lamp . . . . . . . . . . . . . . . . . . . 361
Center Seat . . . . . . . . . . . . . . . . . . . . . 57
Chains, Tire . . . . . . . . . . . . . . . . . . . . 394
Charging Wireless . . . . . . . . . . . . . . . . . . . . . . 132
Charging System Light . . . . . . . . . 146 Check
Engine Light (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . 146
Ignition Transmission Lock . . . 354
Child Restraints Infants and Young Children . . . . . 92
Lower Anchors and Tethersfor Children . . . . . . . . . . . . . . . . . . . 98
Older Children . . . . . . . . . . . . . . . . . . 91
Securing . . . . . . . . . . . . . . . . . .110, 113
Systems . . . . . . . . . . . . . . . . . . . . . . . . 95
Circuit Breakers . . . . . . . . . . . . . . . . 362
Cleaning Exterior Care . . . . . . . . . . . . . . . . . 418
Interior Care . . . . . . . . . . . . . . . . . . 423
Climate Control
Systems . . . . . . . . . . . . . . . . . 216, 218
Air Conditioning . . . . . . . . . 216, 218
Dual Automatic . . . . . . . . . . . . . . . 220
Heating . . . . . . . . . . . . . . . . . . 216, 218
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Cluster, Instrument . . . . . . . . . . . . . 136
Collision Damage Repair . . . . . . . 456
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . 122
Compass . . . . . . . . . . . . . . . . . . . . . . . 129
Connected Services Connections . . . . . . . . . . . . . . . . . . 472 Connected Services (cont'd)
Diagnostics . . . . . . . . . . . . . . . . . . . 474
Navigation . . . . . . . . . . . . . . . . . . . . 471
Connections
Connected Services . . . . . . . . . . 472
Control Hill Descent . . . . . . . . . . . . . . . . . . 275
Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . 273
Control Light Hill Descent . . . . . . . . . . . . . . . . . . 150
Control of a Vehicle . . . . . . . . . . . . . 227
Convex Mirrors . . . . . . . . . . . . . . . . . . 45
Coolant Engine Temperature Gauge . . 141
Cooling . . . . . . . . . . . . . . .216, 218, 220
Cooling System . . . . . . . . . . . . . . . . . 339
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . . 455
Cruise Control . . . . . . . . . . . . . . . . . . 276 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Cupholders . . . . . . . . . . . . . . . . . . . . . 123
Customer Assistance . . . . . . . . . . . 452 Offices . . . . . . . . . . . . . . . . . . . . . . . . 451
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 452

Chevrolet Silverado LD 1500 and Silverado 2500/3500 Owner Manual (GMNA-
Localizing-U.S./Canada-12162993) - 2019 - crc - 4/4/18
478 Index
Customer InformationPublications Ordering
Information . . . . . . . . . . . . . . . . . . 458
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . 449
D
Damage Repair, Collision . . . . . . . 456
Danger, Warning, and Caution . . . . 3
Data CollectionInfotainment System . . . . . . . . . . 462
OnStar . . . . . . . . . . . . . . . . . . . . . . . 462
Data Recorders, Event . . . . . . . . . 461
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 174
Defensive Driving . . . . . . . . . . . . . . . 227
Diagnostics Connected Services . . . . . . . . . . 474
Distracted Driving . . . . . . . . . . . . . . . 226
Dome Lamps . . . . . . . . . . . . . . . . . . . 178
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Power Locks . . . . . . . . . . . . . . . . . . . . 40
Drive Belt Routing, Engine . . . . . . 448
Driver Assistance Systems . . . . . 279
Driver Information Center (DIC) . . . . . . . . . . . . . 154, 156 Driving
Assistance Systems . . . . . . . . . . 282
Characteristics and
Towing Tips . . . . . . . . . . . . . . . . . 294
Defensive . . . . . . . . . . . . . . . . . . . . . 227
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 227
For Better Fuel Economy . . . . . . . 32
Hill and Mountain Roads . . . . . . 235
If the Vehicle is Stuck . . . . . . . . . 237
Loss of Control . . . . . . . . . . . . . . . 229
Off-Road . . . . . . . . . . . . . . . . . . . . . 230
Off-Road Recovery . . . . . . . . . . . 229
Vehicle Load Limits . . . . . . . . . . . 238
Wet Roads . . . . . . . . . . . . . . . . . . . 234
Winter . . . . . . . . . . . . . . . . . . . . . . . . 236
Dual Automatic Climate
Control System . . . . . . . . . . . . . . . . 220
E
E85 or FlexFuel . . . . . . . . . . . . . . . . 291
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 318
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 362
Fuses and Circuit Breakers . . . 362
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . 366, 367 Electrical System (cont'd)
Overload . . . . . . . . . . . . . . . . . . . . . 361
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . 464
Engine Air Cleaner/Filter . . . . . . . . . . . . . 338
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 146
Compartment Overview . . . . . . . 328
Coolant Heater . . . . . . . . . . . . . . . 251
Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 141
Cooling System . . . . . . . . . . . . . . . 339
Drive Belt Routing . . . . . . . . . . . . 448
Exhaust . . . . . . . . . . . . . . . . . . . . . . 255
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 345
Oil Life System . . . . . . . . . . . . . . . 333
Oil Pressure Gauge . . . . . . . . . . 140
Overheated Protection Operating Mode . . . . . . . . . . . . . 344
Overheating . . . . . . . . . . . . . . . . . . 343
Power Messages . . . . . . . . . . . . . 159
Running While Parked . . . . . . . . 255
Starting . . . . . . . . . . . . . . . . . . . . . . . 249
Entry Lighting . . . . . . . . . . . . . . . . . . . 179
Equipment, Towing . . . . . . . . . . . . . 306
Event Data Recorders . . . . . . . . . . 461
Exit Lighting . . . . . . . . . . . . . . . . . . . . 179