2017 CHEVROLET SILVERADO service

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
80 Seats and Restraints
{Warning
Acrashsevereenoughtoinflate
the airbags may have also
damaged important functions in
the vehicle, such as the fuel
system, brake and steering
systems, etc. Even if the vehicle
appears to be drivable after a
moderate crash, there may be
concealed damage that could
make it difficult to safely operate
the vehicle.
Use caution if you should attempt
to restart the engine after a crash
has occurred.
In many crashes severe enough toinflate the airbag, windshields arebroken by vehicle deformation.Additional windshield breakage mayalso occur from the front outboardpassenger airbag.
.Airbags are designed to inflateonly once. After an airbaginflates, you will need some newparts for the airbag system.If you do not get them, the
airbag system will not be thereto help protect you in anothercrash. A new system will includeairbag modules and possiblyother parts. The service manualfor the vehicle covers the needto replace other parts.
.The vehicle has a crash sensingand diagnostic module whichrecords information after acrash. SeeVehicle DataRecording and Privacy0484andEvent DataRecorders0484.
.Let only qualified technicianswork on the airbag systems.Improper service can mean thatan airbag system will not workproperly. See your dealer forservice.
Airbag On-Off Switch
If the passenger side instrumentpanel endcap has the switchpictured in the following illustration,the vehicle has an airbag on-offswitch that you can use to manually
turn on or off the front outboardpassenger frontal airbag. SeeInstrument Panel06.
If the vehicle does not have anairbag on-off switch, it may have apassenger sensing system. SeePassenger Sensing System082.
This switch should only be turned tothe off position if the person in thefront outboard passenger position isamemberofapassengerriskgroupidentified by the nationalgovernment as follows:
Infant. An infant (less than 1 yearold) must ride in the front seatbecause:
.My vehicle has no rear seat;

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
82 Seats and Restraints
you know that the front outboardpassenger frontal airbag is off. SeeAirbag On-Off Light0136.Thefrontoutboard passenger airbag willremain off until you turn it back onagain.
{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.
To t u r n t h e f r o n t o u t b o a r d p a s s e n g e rfrontal airbag on again, insert theignition key into the switch, push in,and move the switch to the onposition.
The front outboard passengerfrontal airbag is now enabled(may inflate). SeeAirbag On-OffLight0136.
Passenger Sensing
System
If the vehicle has one of thefollowing indicators, then the vehiclehas a passenger sensing system forthe front outboard passengerposition, unless there is an airbagon-off switch on the instrumentpanel endcap. If there is an airbagon-off switch, the vehicle does not
have a passenger sensing system.SeeAirbag On-Off Switch080formore information.
The passenger airbag statusindicator will light on the overheadconsole when the vehicle is started.
United States
Canada and Mexico
The words ON and OFF, or thesymbol for on and off, will be visibleduring the system check. When thesystem check is complete, either theword ON or OFF, or the symbol foron or off, will be visible. SeePassenger Airbag StatusIndicator0137.

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.