service CHEVROLET SILVERADO 2017 3.G Owner's Manual

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
138 Instruments and Controls
Warning (Continued)
with the airbag system. To help
avoid injury to yourself or others,
have the vehicle serviced right
away. SeeAirbag Readiness
Light0135for more information,
including important safety
information.
Charging System Light
The charging system light comes onbriefly when the ignition is turnedon, but the engine is not running, asachecktoshowthelightisworking.It should go out when the engine isstarted.
If the light stays on, or comes onwhile driving, there may be aproblem with the electrical charging
system. Have it checked by yourdealer. Driving while this light is oncould drain the battery.
When this light comes on, or isflashing, the Driver InformationCenter (DIC) also displays amessage.
SeeBattery Voltage and ChargingMessages0150.
If a short distance must be drivenwith the light on, be sure to turn offall accessories, such as the radioand air conditioner.
Malfunction Indicator
Lamp (Check Engine
Light)
This light is part of the vehicle’semission control on-boarddiagnostic system. If this light is onwhile the engine is running, amalfunction has been detected andthe vehicle may require service. Thelight should come on to show that itis working when the ignition is inON/RUN and the engine is notrunning. SeeIgnitionPositions0268.
Malfunctions are often indicated bythe system before any problem isnoticeable. Being aware of the lightand seeking service promptly whenit comes on may prevent damage.
Caution
If the vehicle is driven continually
with this light on, the emission
control system may not work as
well, the fuel economy may be
lower, and the vehicle may not
run smoothly. This could lead to
costly repairs that might not be
covered by the vehicle warranty.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Instruments and Controls 139
Caution
Modifications to the engine,
transmission, exhaust, intake,
or fuel system, or the use of
replacement tires that do not
meet the original tire
specifications, can cause this light
to come on. This could lead to
costly repairs not covered by the
vehicle warranty. This could also
affect the vehicle’sabilitytopass
an Emissions Inspection/
Maintenance test. See
Accessories and
Modifications0352.
If the light is flashing :Amalfunction has been detected thatcould damage the emission controlsystem and increase vehicleemissions. Diagnosis and servicemay be required.
To h e l p p r e v e n t d a m a g e , r e d u c evehicle speed and avoid hardaccelerations and uphill grades.
If towing a trailer, reduce theamount of cargo being hauled assoon as possible.
If the light continues to flash, find asafe place to park. Turn the vehicleoff and wait at least 10 secondsbefore restarting the engine. If thelight is still flashing, follow theprevious guidelines and see yourdealer for service as soon aspossible.
If the light is on steady :Amalfunction has been detected.Diagnosis and service may berequired.
Check the following:
.If fuel has been added to thevehicle using the capless funneladapter, make sure that it hasbeen removed. See“Filling theTa n k w i t h a P o r t a b l e G a s C a n”underFilling the Tank0313.The diagnostic system candetect if the adapter has beenleft installed in the vehicle,allowing fuel to evaporate intothe atmosphere. A few drivingtrips with the adapter removedmay turn off the light.
.Poor fuel quality can causeinefficient engine operation andpoor driveability, which may goaway once the engine is warmedup. If this occurs, change thefuel brand. It may require atleast one full tank of the properfuel to turn the light off. SeeFuel0311.
If the light remains on, see yourdealer.
Emissions Inspection and
Maintenance Programs
If the vehicle requires an EmissionsInspection/Maintenance test, thetest equipment will likely connect tothe vehicle's Data LinkConnector (DLC).
The DLC is under the instrumentpanel to the left of the steeringwheel. Connecting devices that are

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
140 Instruments and Controls
not used to perform an EmissionsInspection/Maintenance test or toservice the vehicle may affectvehicle operation. SeeAdd-OnElectrical Equipment0345.Seeyour dealer if assistance is needed.
The vehicle may not passinspection if:
.The light is on when the engineis running.
.The light does not come onwhen the ignition is in ON/RUNwhile the engine is off.
.Critical emission control systemshave not been completelydiagnosed. If this happens, thevehicle would not be ready forinspection and might requireseveral days of routine drivingbefore the system is ready forinspection. This can happen ifthe 12-volt battery has recentlybeen replaced or run down, or ifthe vehicle has been recentlyserviced.
See your dealer if the vehicle willnot pass or cannot be made readyfor the test.
Brake System Warning
Light
The vehicle brake system consistsof two hydraulic circuits. If onecircuit is not working, the remainingcircuit can still work to stop thevehicle. For normal brakingperformance, both circuits need tobe working.
If the warning light comes on, thereis a brake problem. Have the brakesystem inspected right away.
MetricEnglish
This light should come on brieflywhen the engine is started. If it doesnot come on then, have it fixed so itwill be ready to warn you if there isaproblem.
When the ignition is on, the brakesystem warning light also comes onwhen the parking brake is set. Thelight stays on if the parking brake
does not fully release. If it stays onafter the parking brake is fullyreleased, it means the vehicle has abrake problem.
If the light comes on while driving,pull off the road and stop carefully.The pedal might be harder to push,or the pedal can go closer to thefloor. It may take longer to stop.If the light is still on, have thevehicle towed for service. SeeTo w i n g t h e V e h i c l e0436.
{Warning
The brake system might not be
working properly if the brake
system warning light is on.
Driving with the brake system
warning light on can lead to a
crash. If the light is still on after
the vehicle has been pulled off
the road and carefully stopped,
have the vehicle towed for
service.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Instruments and Controls 141
Antilock Brake System
(ABS) Warning Light
This light comes on briefly when theengine is started.
If the light does not come on, have itfixed so it will be ready to warn ifthere is a problem.
If the light comes on while driving,stop as soon as it is safely possibleand turn off the vehicle. Then startthe engine again to reset thesystem. If the ABS light stays on,or comes on again while driving, thevehicle needs service. A chime mayalso sound when the light comes onsteady.
If the ABS light is the only light on,the vehicle has regular brakes, butthe antilock brakes are notfunctioning.
If both the ABS and the brakesystem warning light are on, thevehicle's antilock brakes are notfunctioning and there is a problemwith the regular brakes. See yourdealer for service.
SeeBrake System Warning Light0140andBrake SystemMessages0151.
Four-Wheel-Drive Light
The four-wheel-drive light comes onwhen a vehicle with a manualtransfer case is shifted intofour-wheel drive and the front axleengages.
Some delay between the shiftingand the light coming on is normal.
SeeFour-Wheel Drive0284formore information.
Tow/Haul Mode Light
For vehicles with the Tow/HaulMode feature, this light comes onwhen the Tow/Haul Mode has beenactivated.
SeeTo w / H a u l M o d e0282.
Hill Descent Control Light
If equipped, the Hill Descent Controllight comes on when the system isready for use. When the lightflashes, the system is active.
SeeHill Descent Control(HDC)0297.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
142 Instruments and Controls
Lane Departure Warning
(LDW) Light (2500/3500
Series)
If equipped, this light comes onbriefly while starting the vehicle. If itdoes not come on, have the vehicleserviced.
This light is green if LDW is on andready to operate.
This light changes to amber andflashes to indicate that the lanemarking has been crossed withoutusing a turn signal in that direction.
SeeLane Departure Warning (LDW)(2500/3500 Series)0307.
Lane Keep Assist (LKA)
Light (1500 Series)
If available, this light comes onbriefly while starting the vehicle.
If it does not come on, have thevehicle serviced.
This light is green if LKA is availableto assist.
LKA may assist by gently turningthe steering wheel if the vehicleapproaches a detected lane markingwithout using the turn signal in thatdirection. The LKA light will turnamber.
This light is amber and flashes as aLane Departure Warning (LDW)alert, to indicate that the lanemarking has been crossed.
SeeLane Keep Assist (LKA) (1500Series)0309.
Vehicle Ahead Indicator
If equipped, this indicator willdisplay green when a vehicle isdetected ahead and amber whenyou are following a vehicle aheadmuch too closely.
SeeForward Collision Alert (FCA)System0304.
Traction Off Light
This light comes on briefly whilestarting the engine. If it does not,have the vehicle serviced by your

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Instruments and Controls 143
dealer. If the system is workingnormally, the indicator light thenturns off.
The traction off light comes on whenthe Traction Control System (TCS)has been turned off by pressing andreleasing the TCS/StabiliTrakbutton.
This light and the StabiliTrak OFFlight come on when StabiliTrak isturned off.
If the TCS is off, wheel spin is notlimited. Adjust driving accordingly.
SeeTr a c t i o n C o n t r o l / E l e c t r o n i cStability Control0295.
StabiliTrak®OFF Light
This light comes on briefly whilestarting the engine. If it does not,have the vehicle serviced by yourdealer.
This light comes on when theStabiliTrak system is turned off.If StabiliTrak is off, the TractionControl System (TCS) is also off.
If StabiliTrak and TCS are off, thesystem does not assist in controllingthe vehicle. Turn on the TCS andthe StabiliTrak systems, and thewarning light turns off.
SeeTr a c t i o n C o n t r o l / E l e c t r o n i cStability Control0295.
Traction Control System
(TCS)/StabiliTrak®Light
This light comes on briefly when theengine is started.
If the light does not come on, havethe vehicle serviced by your dealer.If the system is working normally,the indicator light turns off.
If the light is on and not flashing, theTCS and potentially the StabiliTraksystem have been disabled.ADriverInformationCenter(DIC)message may display. Check theDIC messages to determine whichfeature(s) is no longer functioningand whether the vehicle requiresservice. SeeRide Control SystemMessages0154.
If the light is on and flashing, theTCS and/or the StabiliTrak systemis actively working.
SeeTr a c t i o n C o n t r o l / E l e c t r o n i cStability Control0295.
Tire Pressure Light
For vehicles with the Tire PressureMonitor System (TPMS), this lightcomes on briefly when the engine isstarted. It provides informationabout tire pressures and the TPMS.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
144 Instruments and Controls
When the Light Is On Steady
This indicates that one or more ofthe tires are significantlyunderinflated.
ADriverInformationCenter(DIC)tire pressure message may alsodisplay. SeeTire Messages0157.Stop as soon as possible, andinflate the tires to the pressure valueshown on the Tire and LoadingInformation label. SeeTirePressure0405.
When the Light Flashes First andThen Is On Steady
If the light flashes for about a minuteand then stays on, there may be aproblem with the TPMS. If theproblem is not corrected, the lightwill come on at every ignition cycle.SeeTire Pressure MonitorOperation0408.
Low Fuel Warning Light
This light is near the fuel gauge andcomes on briefly when the ignition isturned on as a check to show it isworking.
It also comes on when the fuel tankis low on fuel. The light turns offwhen fuel is added. If it does not,have the vehicle serviced.
Security Light
The security light should come onbriefly as the engine is started. If itdoes not come on, have the vehicle
serviced by your dealer. If thesystem is working normally, theindicator light turns off.
If the light stays on and the enginedoes not start, there could be aproblem with the theft-deterrentsystem. SeeImmobilizerOperation045.
High-Beam On Light
This light comes on when thehigh-beam headlamps are in use.
SeeHeadlamp High/Low-BeamChanger0173.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Instruments and Controls 151
SERVICE BATTERY
CHARGING SYSTEM
On some vehicles, this messagedisplays if there is a problem withthe battery charging system. Undercertain conditions, the chargingsystem light may also turn on in theinstrument cluster. SeeChargingSystem Light0138.Drivingwiththisproblem could drain the battery.Turn off all unnecessaryaccessories. Have the electricalsystem checked as soon aspossible. See your dealer.
TRANSPORT MODE ON
This message is displayed when thevehicle is in transport mode. Somefeatures can be disabled while inthis mode, including RemoteKeyless Entry (RKE), remote start,and the vehicle alarm system. Takethe vehicle to your dealer for serviceto turn transport mode off.
Brake System Messages
BRAKE FLUID LOW
This message is displayed when thebrake fluid level is low. SeeBrakeFluid0377.
SERVICE BRAKE ASSIST
This message may be displayedwhen there is a problem with thebrake boost assist system. Whenthis message is displayed, the brakeboost assist motor might be heardoperating and you might noticepulsation in the brake pedal. This isnormal under these conditions. Takethe vehicle to your dealer forservice.
SERVICE TRAILER BRAKE
SYSTEM
On vehicles with the IntegratedTrailer Brake Control (ITBC) system,this message displays and a chimemay sound when there is a problemwith the ITBC system.
When this message displays, poweris no longer available to the trailerbrakes.
As soon as it is safe to do so,carefully pull your vehicle over tothe side of the road and turn theignition off. Check the wiringconnection to the trailer and turn theignition back on. If this message stilldisplays, either your vehicle or thetrailer needs service. See yourdealer.
See“Integrated Trailer BrakeControl System”underTo w i n gEquipment0335for moreinformation.
Compass Messages
Dashes may be displayed if thevehicle temporarily losescommunication with the GlobalPositioning System (GPS).
Door Ajar Messages
DOOR OPEN
This message displays and a chimemay sound if a door is not fullyclosed. Stop and turn off thevehicle, check the door for

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
152 Instruments and Controls
obstructions, and close the dooragain. Check to see if the messagestill appears on the DIC.
HOOD OPEN
This message displays and a chimemay sound if the hood is not fullyclosed. Stop and turn off thevehicle, check the hood forobstructions, and close the hoodagain. Check to see if the messagestill appears on the DIC.
Engine Cooling System
Messages
A/C OFF DUE TO HIGH
ENGINE TEMP
This message displays when theengine coolant becomes hotter thanthe normal operating temperature.SeeEngine Coolant TemperatureGauge0133.Toavoidaddedstrainon a hot engine, the air conditioningcompressor automatically turns off.When the coolant temperaturereturns to normal, the airconditioning compressor turns backon. You can continue to drive yourvehicle.
If this message continues to appear,have the system repaired by yourdealer as soon as possible to avoiddamage to the engine.
ENGINE OVERHEATING IDLE
ENGINE
This message displays when theengine coolant temperature is toohot. Stop and allow the vehicle toidle until it cools down. SeeEngineCoolant Temperature Gauge0133.
When towing, use Tow/Haul modeto prevent damage to the engine ortransmission. SeeTo w / H a u lMode0282.
ENGINE OVERHEATED STOP
ENGINE
This message displays and a chimemay sound if the engine coolingsystem reaches unsafetemperatures for operation. Stopand turn off the vehicle as soon as itis safe to do so to avoid severedamage. This message clears whenthe engine has cooled to a safeoperating temperature.
Engine Oil Messages
CHANGE ENGINE OIL SOON
This message displays when theengine oil needs to be changed.When you change the engine oil, besure to reset the CHANGE ENGINEOIL SOON message. SeeEngineOil Life System0362forinformation on how to reset themessage. SeeEngine Oil0359andMaintenance Schedule0452.
ENGINE OIL LOW ADD OIL
On some vehicles, this messagedisplays when the engine oil levelmay be too low. Check the oil levelbefore filling to the recommendedlevel. If the oil is not low and thismessage remains on, take thevehicle to your dealer for service.SeeEngine Oil0359.
ENGINE OIL HOT IDLE
ENGINE
This message displays when theengine oil becomes hotter than thenormal operating temperature. Stop

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Instruments and Controls 153
and allow the vehicle to idle until itcools down. SeeEngine CoolantTe m p e r a t u r e G a u g e0133.
OIL PRESSURE LOW STOP
ENGINE
This message displays if low oilpressure levels occur. Stop thevehicle as soon as safely possibleand do not operate it until the causeof the low oil pressure has beencorrected. Check the oil as soon aspossible and have the vehicleserviced by your dealer. SeeEngineOil0359.
Engine Power Messages
ENGINE POWER IS REDUCED
This message displays and a chimemay sound when the cooling systemtemperature gets too hot and theengine further enters the enginecoolant protection mode. SeeEngine Overheating0372for moreinformation.
This message also displays whenthe vehicle's engine power isreduced. Reduced engine powercan affect the vehicle's ability to
accelerate. If this message is on,but there is no reduction inperformance, proceed to yourdestination. The performance maybe reduced the next time the vehicleis driven. The vehicle may be drivenat a reduced speed while thismessage is on, but acceleration andspeed may be reduced. Anytimethis message stays on, the vehicleshould be taken to your dealer forservice as soon as possible.
Fuel System Messages
FUEL LEVEL LOW
This message displays and a chimemay sound if the fuel level is low.Refuel as soon as possible. SeeFuel Gauge0131andFuel0311.
Key and Lock Messages
REPLACE BATTERY IN
REMOTE KEY
This message displays if a RemoteKeyless Entry (RKE) transmitterbattery is low. The battery needs tobe replaced in the transmitter. See
“Battery Replacement”underRemote Keyless Entry (RKE)System Operation036.
Lamp Messages
TURN SIGNAL ON
This message displays and a chimesounds if a turn signal is left on for1.2 km (0.75 mi). Move the turnsignal lever to the off position.
Object Detection System
Messages
FORWARD COLLISION
ALERT OFF
This message displays when theForward Collision Alert has beenturned off.
FRONT CAMERA BLOCKED
CLEAN WINDSHIELD
This message displays when thecamera is blocked. Cleaning theoutside of the windshield behind therearview mirror may correct theissue. The Lane Departure Warning