service CHEVROLET SILVERADO 2017 3.G User Guide

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
84 Seats and Restraints
.There is a critical problem withthe airbag system or thepassenger sensing system.
When the passenger sensingsystem has turned off the frontoutboard passenger frontal airbag,the off indicator will light and stay litas a reminder that the airbag is off.SeePassenger Airbag StatusIndicator0137.
The passenger sensing system isdesigned to turn on the frontoutboard passenger frontal airbaganytime the system senses that aperson of adult size is sittingproperly in the front outboardpassenger seat.
When the passenger sensingsystem has allowed the airbag to beenabled, the on indicator will lightand stay lit as a reminder that theairbag is active.
For some children, includingchildren in child restraints, and forvery small adults, the passengersensing system may or may not turnoff the front outboard passenger
frontal airbag, depending upon theperson's seating posture and bodybuild. Everyone in the vehicle whohas outgrown child restraints shouldwear a safety beltproperly—whether or not there isan airbag for that person.
{Warning
If the airbag readiness light ever
comes on and stays on, it means
that something may be wrong
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.
If the On Indicator Is Lit for a
Child Restraint
The passenger sensing system isdesigned to turn off the frontoutboard passenger frontal airbag ifthe system determines that an infant
is present in a child restraint. If achild restraint has been installedand the on indicator is lit:
1. Turn the vehicle off.
2. Remove the child restraint fromthe vehicle.
3. Remove any additional itemsfrom the seat such as blankets,cushions, seat covers, seatheaters, or seat massagers.
4. Reinstall the child restraintfollowing the directionsprovided by the child restraintmanufacturer and refer toSecuring Child Restraints (Withthe Safety Belt in the CenterFront Seat)0106orSecuringChild Restraints (With theSafety Belt in the Rear Seat)0102orSecuring ChildRestraints (With the Safety Beltin the Front PassengerSeat)0106.
Make sure the safety beltretractor is locked by pullingthe shoulder belt all the wayout of the retractor wheninstalling the child restraint,

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
86 Seats and Restraints
6. Restart the vehicle and havethe person remain in thisposition for two to three minutesafter the on indicator is lit.
{Warning
If the front outboard passenger
airbag is turned off for an
adult-sized occupant, the airbag
will not be able to inflate and help
protect that person in a crash,
resulting in an increased risk of
serious injury or even death. An
adult-sized occupant should not
ride in the front outboard
passenger seat, if the passenger
airbag off indicator is lit.
Additional Factors Affecting
System Operation
Safety belts help keep thepassenger in position on the seatduring vehicle maneuvers andbraking, which helps the passengersensing system maintain thepassenger airbag status. See“Safety Belts”and“Child Restraints”
in the Index for additionalinformation about the importance ofproper restraint use.
Athicklayerofadditionalmaterial,such as a blanket or cushion,or aftermarket equipment such asseat covers, seat heaters, and seatmassagers can affect how well thepassenger sensing systemoperates. We recommend that younot use seat covers or otheraftermarket equipment except whenapproved by GM for your specificvehicle. SeeAdding Equipment tothe Airbag-Equipped Vehicle087for more information aboutmodifications that can affect howthe system operates.
The on indicator may be lit if anobject, such as a briefcase,handbag, grocery bag, laptop,or other electronic device, is put onan unoccupied seat. If this is notdesired, remove the object fromthe seat.
{Warning
Stowing of articles under the
passenger seat or between the
passenger seat cushion and
seatback may interfere with the
proper operation of the passenger
sensing system.
Servicing the
Airbag-Equipped Vehicle
Airbags affect how the vehicleshould be serviced. There are partsof the airbag system in severalplaces around the vehicle. Yourdealer and the service manual haveinformation about servicing thevehicle and the airbag system. Topurchase a service manual, seeService Publications OrderingInformation0481.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Seats and Restraints 87
{Warning
For up to 10 seconds after the
vehicle is turned off and the
battery is disconnected, an airbag
can still inflate during improper
service. You can be injured if you
are close to an airbag when it
inflates. Avoid yellow connectors.
They are probably part of the
airbag system. Be sure to follow
proper service procedures, and
make sure the person performing
work for you is qualified to do so.
Adding Equipment to the
Airbag-Equipped Vehicle
Adding accessories that change thevehicle's frame, bumper system,height, front end, or side sheetmetal, may keep the airbag systemfrom working properly. Theoperation of the airbag system canalso be affected by changing anyparts of the front seats, safety belts,the airbag sensing and diagnosticmodule, steering wheel, instrumentpanel, any of the airbag modules,
ceiling headliner or pillar garnishtrim, overhead console, frontsensors, side impact sensors,or airbag wiring.
Yo u r d e a l e r a n d t h e s e r v i c e m a n u a lhave information about the locationof the airbag sensors, sensing anddiagnostic module, and airbagwiring.
In addition, the vehicle may have apassenger sensing system for thefront outboard passenger position,which includes sensors that are partof the passenger seat. Thepassenger sensing system may notoperate properly if the original seattrim is replaced with non-GMcovers, upholstery, or trim; or withGM covers, upholstery, or trimdesigned for a different vehicle. Anyobject, such as an aftermarket seatheater or a comfort-enhancing pador device, installed under or on topof the seat fabric, could alsointerfere with the operation of thepassenger sensing system. Thiscould either prevent properdeployment of the passengerairbag(s) or prevent the passengersensing system from properly
turning off the passenger airbag(s).SeePassenger SensingSystem082.
If the vehicle has rollover roof-railairbags, seeDifferent Size Tiresand Wheels0416for additionalimportant information.
If a snow plow is added to thevehicle, the airbags should still workproperly. The airbag systems weredesigned to work properly under awide range of conditions, includingsnow plowing with vehicles thathave the optional snow plow preppackage (RPO VYU). Do notchange or defeat the snow plow's“tripping mechanism.”If you do, itcan damage the snow plow and thevehicle, and may cause an airbagdeployment.
If you have to modify your vehiclebecause you have a disability andyou have questions about whetherthe modifications will affect thevehicle's airbag system, or if youhave questions about whether theairbag system will be affected if thevehicle is modified for any other

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
88 Seats and Restraints
reason, call Customer Assistance.SeeCustomer AssistanceOffices0474.
Airbag System Check
The airbag system does not needregularly scheduled maintenance orreplacement. Make sure the airbagreadiness light is working. SeeAirbag Readiness Light0135.
Caution
If an airbag covering is damaged,
opened, or broken, the airbag
may not work properly. Do not
open or break the airbag
coverings. If there are any
opened or broken airbag
coverings, have the airbag
covering and/or airbag module
replaced. For the location of the
airbags, seeWhere Are the
Airbags?075.Seeyourdealer
for service.
Replacing Airbag System
Parts after a Crash
{Warning
Acrashcandamagetheairbag
systems in the vehicle.
Adamagedairbagsystemmay
not properly protect you and your
passenger(s) in a crash, resulting
in serious injury or even death. To
help make sure the airbag
systems are working properly
after a crash, have them
inspected and any necessary
replacements made as soon as
possible.
If an airbag inflates, you will need toreplace airbag system parts. Seeyour dealer for service.
If the airbag readiness light stays onafter the vehicle is started or comeson when you are driving, the airbagsystem may not work properly. Havethe vehicle serviced right away. SeeAirbag Readiness Light0135.
Child Restraints
Older Children
Older children who have outgrownbooster seats should wear thevehicle safety belts.
The manufacturer instructions thatcome with the booster seat state theweight and height limitations for thatbooster. Use a booster seat with alap-shoulder belt until the childpasses the fit test below:

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
110 Seats and Restraints
{Warning
Achildinarear-facingchild
restraint can be seriously injured
or killed if the front outboard
passenger airbag inflates. This is
because the back of the
rear-facing child restraint would
be very close to the inflating
airbag. A child in a forward-facing
child restraint can be seriously
injured or killed if the front
outboard passenger airbag
inflates and the passenger seat is
in a forward position.
Even if the airbag switch has
turned off the front outboard
passenger frontal airbag, no
system is fail-safe. No one can
guarantee that an airbag will not
deploy under some unusual
circumstance, even though it is
turned off.
Secure rear-facing child restraints
in a rear seat, even if the airbag
is off. If you secure a
(Continued)
Warning (Continued)
forward-facing child restraint in
the front outboard passenger
seat, always move the seat as far
back as it will go. It is better to
secure the child restraint in a
rear seat.
{Warning
If the airbag readiness light ever
comes on and stays on, it means
that something may be wrong
with the airbag system. For
example, the front outboard
passenger frontal airbag could
inflate even though the airbag
on-off switch is turned off.
To h e l p a v o i d i n j u r y t o y o u r s e l f o r
others, have the vehicle serviced
right away. SeeAirbag Readiness
Light0135for more information,
including important safety
information.
If the vehicle does not have a rearseat that will accommodate arear-facing child restraint, arear-facing child restraint should notbe installed in the vehicle, even ifthe airbag is off.
If a child restraint uses a top tether,seeLower Anchors and Tethers forChildren (LATCH System)096fortop tether anchor locations.
Do not secure a child restraint in aposition without a top tether anchorif a national or local law requiresthat the top tether be anchored, or ifthe instructions that come with thechild restraint say that the top strapmust be anchored.
In Canada, the law requires thatforward-facing child restraints haveatoptether,andthatthetetherbeattached.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
132 Instruments and Controls
When the ignition is on, the fuelgauge indicates about how muchfuel is left in the tank.
There is an arrow near the fuelgauge pointing to the side of thevehicle the fuel door is on.
When the indicator nears empty, thelow fuel light comes on. There still isalittlefuelleft,butthevehicleshould be refueled soon.
Here are four things that someowners ask about. None of theseshow a problem with the fuel gauge:
.At the service station, the fuelpump shuts off before the gaugereads full.
.It takes a little more or less fuelto fill up than the gaugeindicated. For example, thegauge may have indicated thetank was half full, but it actuallytook a little more or less thanhalf the tank's capacity to fillthe tank.
.The gauge moves a little whileturning a corner or speeding up.
.The gauge takes a few secondsto stabilize after the ignition isturned on, and goes back toempty when the ignition isturned off.
Engine Oil Pressure
Gauge
Metric
English
The engine oil pressure gaugeshows the engine oil pressurein kPa (kilopascals) or psi (poundsper square inch) when the engine isrunning.
Oil pressure can vary with enginespeed, outside temperature, coolanttemperature, and oil viscosity.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Instruments and Controls 133
Areadingoutsidethenormaloperating range can be caused by adangerously low oil level or someother problem causing low oilpressure. Check the vehicle's oil assoon as possible. See“OILPRESSURE LOW STOP ENGINE”underEngine Oil Messages0152andEngine Oil0359.
Caution
Lack of proper engine oil
maintenance can damage the
engine. Driving with the engine oil
low can also damage the engine.
The repairs would not be covered
by the vehicle warranty. Check
the oil level as soon as possible.
Add oil if required, but if the oil
level is within the operating range
and the oil pressure is still low,
have the vehicle serviced. Always
follow the maintenance schedule
for changing engine oil.
If the vehicle has a diesel engine,see the Duramax dieselsupplement.
Engine Coolant
Temperature Gauge
Metric
English
This gauge measures thetemperature of the vehicle's enginecoolant.
While driving under normaloperating conditions, if the needlemoves into the red warning area,the engine is too hot. Pull off theroad, stop the vehicle, and turn offthe engine as soon as possible.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
134 Instruments and Controls
Voltmeter Gauge
When the ignition is on, this gaugeindicates the battery voltage.
When the engine is running, thisgauge shows the condition of thecharging system. The gauge cantransition from a higher to lower or alower to higher reading. This isnormal. If the vehicle is operatingoutside the normal operating range,the charging system light comes on.SeeCharging System Light0138for more information. The voltmetergauge may also read lower when infuel economy mode. This is normal.
Readings outside the normaloperating range can also occurwhen a large number of electricalaccessories are operating in thevehicle and the engine is left idlingfor an extended period. Thiscondition is normal since thecharging system is not able toprovide full power at engine idle. Asengine speeds are increased, thiscondition should correct itself ashigher engine speeds allow thecharging system to create maximumpower.
The vehicle can only be driven for ashort time with the readings outsidethe normal operating range. If thevehicle must be driven, turn off allaccessories, such as the radio andair conditioner.
Readings outside the normaloperating range indicate a possibleproblem in the electrical system.Have the vehicle serviced as soonas possible.
Safety Belt Reminders
Driver Safety Belt Reminder
Light
There is a driver safety beltreminder light on the instrumentcluster.
When the vehicle is started, thislight flashes and a chime may comeon to remind the driver to fastentheir safety belt. Then the light stayson solid until the belt is buckled.This cycle may continue severaltimes if the driver remains orbecomes unbuckled while thevehicle is moving.
If the driver safety belt is buckled,neither the light nor the chimecomes on.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Instruments and Controls 135
Passenger Safety Belt
Reminder Light
There may be a passenger safetybelt reminder light near thepassenger airbag status indicator.SeePassenger SensingSystem082.
For vehicles equipped with thepassenger safety belt reminder light,when the vehicle is started this lightflashes and a chime may come onto remind passengers to fasten theirsafety belt. Then the light stays onsolid until the belt is buckled. Thiscycle continues several times if thepassenger remains or becomesunbuckled while the vehicle ismoving.
If the passenger safety belt isbuckled, neither the chime nor thelight comes on.
The front passenger safety beltreminder light and chime may turnon if an object is put on the seatsuch as a briefcase, handbag,grocery bag, laptop, or otherelectronic device. To turn off thereminder light and/or chime, removethe object from the seat or bucklethe safety belt.
Airbag Readiness Light
This light shows if there is anelectrical problem with the airbagsystem. The system check includesthe airbag sensor(s), passengersensing system (if equipped), thepretensioners, the airbag modules,the wiring, and the crash sensingand diagnostic module. For moreinformation on the airbag system,seeAirbag System074.
The airbag readiness light comes onfor several seconds when thevehicle is started. If the light doesnot come on then, have it fixedimmediately.
{Warning
If the airbag readiness light stays
on after the vehicle is started or
comes on while driving, it means
the airbag system might not be
working properly. The airbags in
the vehicle might not inflate in a
crash, or they could even inflate
without a crash. To help avoid
injury, have the vehicle serviced
right away.
If there is a problem with the airbagsystem, a Driver Information Center(DIC) message may also come on.SeeAirbag SystemMessages0155.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Instruments and Controls 137
Warning (Continued)
example, the front outboard
passenger frontal airbag could
inflate even though the airbag
on-off switch is turned off.
To h e l p a v o i d i n j u r y t o y o u r s e l f o r
others, have the vehicle serviced
right away. SeeAirbag Readiness
Light0135for more information,
including important safety
information.
If the word ON or the on symbol islit, it means that the front outboardpassenger frontal airbag is enabled(may inflate). SeeAirbag On-OffSwitch080for more information,including important safetyinformation.
If, after several seconds, both statusindicator lights remain on, or if thereare no lights at all, there may be aproblem with the lights or the airbagon-off switch. See your dealer forservice.
Passenger Airbag Status
Indicator
If the vehicle has the passengersensing system, the overheadconsole will have a passengerairbag status indicator. SeePassenger Sensing System082forimportant safety information.
United States
Canada and Mexico
When the vehicle is started, thepassenger airbag status indicatorwill light ON and OFF, or the symbolfor on and off, for several secondsas a system check. Then, after
several more seconds, the statusindicator will light either ON or OFF,or either the on or off symbol, to letyou know the status of the frontoutboard passenger frontal airbag.
If the word ON or the on symbol islit on the passenger airbag statusindicator, it means that the frontoutboard passenger frontal airbag isallowed to inflate.
If the word OFF or the off symbol islit on the airbag status indicator, itmeans that the passenger sensingsystem has turned off the frontoutboard passenger frontal airbag.
If, after several seconds, both statusindicator lights remain on, or if thereare no lights at all, there may be aproblem with the lights or thepassenger sensing system. Seeyour dealer for service.
{Warning
If the airbag readiness light ever
comes on and stays on, it means
that something may be wrong
(Continued)