2017 CHEVROLET SILVERADO engine

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Driving and Operating 291
If the transmission is in gear and/ormoving more than 5 km/h (3 mph),
the 4nindicator light will flash for
30 seconds and not complete theshift. After 30 seconds the transfer
case will shift to 4m.Turntheknob
to 4mto display the indicator. With
the vehicle moving less than 5 km/h(3 mph), and the transmission inN(Neutral), attempt the shift again.
Shifting Out of 4n
To s h i f t :
1. The vehicle must be stopped ormoving less than 5 km/h(3 mph) with the transmissionin N (Neutral) and the ignition inON/RUN. It is best for thevehicle to be moving1.6 to 3.2 km/h (1 to 2 mph).
2. Turn the knob to 4m,AUTO,
or 2m.Waitforthe4m,AUTO,
or 2mindicator light to stop
flashing before shifting thetransmission into gear.
Caution
Shifting the transmission into gear
before the requested mode
indicator light has stopped
flashing could damage the
transfer case.
If the transmission is in gear and/ormoving more than 5 km/h (3 mph),
the 4m,AUTO,or2mindicator light
will flash for 30 seconds but will notcomplete the shift. With the vehiclemoving less than 5 km/h (3 mph),and the transmission in N (Neutral),attempt the shift again.
Shifting Into N (Neutral)
To s h i f t i n t o N ( N e u t r a l ) :
1. Park the vehicle on a levelsurface.
2. Set the parking brake andpress and hold the brakepedal. SeeParkingBrake0293.
3. Start the vehicle or turn theignition to ON/RUN.
4. Shift the transmission toN(Neutral).
5. Shift the transfer case to 2m.
6. Turn the transfer case knobclockwise to N (Neutral) until itstops and hold it there until theN(Neutral) light starts blinking.This will take at least10 seconds. Then slowly
release the dial to the 4n
position. The N (Neutral) lightwill come on when the transfercase shift to N (Neutral) iscomplete.
7. With the engine running, verifythat the transfer case is inN(Neutral) by shifting thetransmission to R (Reverse),then shift the transmission toD(Drive). There should be nomovement of the vehicle whileshifting the transmission.
8. Turn the engine off, and theignition to ACC/ACCESSORY.
9. Place the transmission shiftlever in P (Park). SeeRecreational VehicleTo w i n g0437.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
292 Driving and Operating
10. Turn the ignition to LOCK/OFF.
Shifting Out of N (Neutral)
To s h i f t o u t o f N ( N e u t r a l ) :
1. Set the parking brake andapply the brake pedal.
2. Turn the ignition to ON/RUNwith the engine off.
3. Shift the transmission toN(Neutral).
4. Turn the transfer case knob tothe desired setting.
After the transfer case hasshifted out of N (Neutral), theN(Neutral) light will goout.
5. Release the parking brake.
6. Start the engine and shift thetransmission to thedesired gear.
Brakes
Antilock Brake
System (ABS)
This vehicle has an Antilock BrakeSystem (ABS), an advancedelectronic braking system that helpsprevent a braking skid.
When the vehicle begins to driveaway, ABS checks itself.Amomentarymotororclickingnoisemay be heard while this test is goingon, and it may even be noticed thatthe brake pedal moves a little. Thisis normal.
If there is a problem with ABS, thiswarning light stays on. SeeAntilockBrake System (ABS) WarningLight0141.
If driving safely on a wet road and itbecomes necessary to slam on thebrakes and continue braking toavoid a sudden obstacle, acomputer senses the wheels areslowing down. If one of the wheelsis about to stop rolling, the computerwill separately work the brakes ateach wheel.
ABS can change the brake pressureto each wheel, as required, fasterthan any driver could. This can helpyou steer around the obstacle whilebraking hard.
As the brakes are applied, thecomputer keeps receiving updateson wheel speed and controlsbraking pressure accordingly.
Remember: ABS does not changethe time needed to get a foot up tothe brake pedal or always decreasestopping distance. If you get tooclose to the vehicle in front of you,there will not be enough time toapply the brakes if that vehiclesuddenly slows or stops. Alwaysleave enough room up ahead tostop, even with ABS.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Driving and Operating 295
facing downhill or if the vehicle isfacing uphill and in R (Reverse).There may be situations on minorhills (less than 5% grade) with aloaded vehicle or while pulling atrailer where HSA may activate.
If you release the brake pedal andthen reapply the brake pedal whileHSA is activated, the brake pedaltypically feels firmer with less pedaltravel.
Ride Control Systems
Traction Control/
Electronic Stability
Control
System Operation
The vehicle has a Traction ControlSystem (TCS) and StabiliTrak®,anelectronic stability control system.These systems help limit wheel spinand assist the driver in maintainingcontrol, especially on slippery roadconditions.
TCS activates if it senses any of thedrive wheels are spinning orbeginning to lose traction. When thishappens, TCS applies the brakes tothe spinning wheels and reducesengine power to limit wheel spin.
StabiliTrak activates when thevehicle senses a difference betweenthe intended path and the directionthe vehicle is actually traveling.StabiliTrak selectively appliesbraking pressure to any one of thevehicle wheel brakes to assist thedriver in keeping the vehicle on the
intended path. Trailer Sway Control(TSC) is also on automatically whenthe vehicle is started. SeeTr a i l e rSway Control (TSC)0344.
If cruise control is being used andtraction control or StabiliTrak beginsto limit wheel spin, cruise control willdisengage. Cruise control may beturned back on when roadconditions allow.
Both systems come onautomatically when the vehicle isstarted and begins to move. Thesystems may be heard or felt whilethey are operating or whileperforming diagnostic checks. Thisis normal and does not mean thereis a problem with the vehicle.
It is recommended to leave bothsystems on for normal drivingconditions, but it may be necessaryto turn TCS off if the vehicle getsstuck in sand, mud, ice, or snow.SeeIf the Vehicle Is Stuck0258and“Turning the Systems Off andOn”later in this section.
When the transfer case (if equipped)is in Four-Wheel Drive Low, thestability system is automatically

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
296 Driving and Operating
disabled,gcomes on, and the
appropriate message will appear onthe DIC. Both traction control andStabiliTrak are automaticallydisabled in this condition.
The indicator light for both systemsis in the instrument cluster. Thislight will:
.Flash when TCS is limitingwheel spin.
.Flash when StabiliTrak isactivated.
.Turn on and stay on when eithersystem is not working.
If either system fails to turn on or toactivate, a message displays in theDriver Information Center (DIC), anddcomes on and stays on toindicate that the system is inactiveand is not assisting the driver in
maintaining control. The vehicle issafe to drive, but driving should beadjusted accordingly.
Ifdcomes on and stays on:
1. Stop the vehicle.
2. Turn the engine off and wait15 seconds.
3. Start the engine.
Drive the vehicle. Ifdcomes on
and stays on, the vehicle may needmore time to diagnose the problem.If the condition persists, see yourdealer.
Turning the Systems Off
and On
The button for TCS and StabiliTrakis on the center stack.
Caution
Do not repeatedly brake or
accelerate heavily when TCS is
off. The vehicle driveline could be
damaged.
To t u r n o f f o n l y T C S , p r e s s a n d
releaseg.Thetractionofflighti
displays in the instrument cluster.The appropriate message willdisplay in the DIC. SeeRide ControlSystem Messages0154.Toturn
TCS on again, press and releaseg.
The traction off lightidisplayed in
the instrument cluster will turn off.
If TCS is limiting wheel spin wheng
is pressed, the system will not turnoff until the wheels stop spinning.
To t u r n o f f b o t h T C S a n d S t a b i l i T r a k ,
press and holdguntil the traction
off lightiand the StabiliTrak OFF
lightgcome on and stay on in the
instrument cluster, then release. The

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
300 Driving and Operating
Passing Another Vehicle WhileUsing Cruise Control
Use the accelerator pedal toincrease the vehicle speed. Whenyou take your foot off the pedal, thevehicle will slow down to theprevious set cruise speed. Whilepressing the accelerator pedal orshortly following the release tooverride cruise control, brieflypressing SET–will result in cruisecontrol set to the current vehiclespeed.
Using Cruise Control on Hills
How well the cruise control workson hills depends on the vehiclespeed, the load, and the steepnessof the hills. When going up steephills, pressing the accelerator pedalmay be necessary to maintainvehicle speed.
While going downhill:
.Vehicles with a 6-speedautomatic transmission and agasoline engine have CruiseGrade Braking to help maintaindriver selected speed.
Cruise Grade Braking is enabledwhen the vehicle is started andcruise control is active. It is notenabled in Range SelectionMode. It assists in maintainingdriver selected speed whendriving on downhill grades byusing the engine andtransmission to slow the vehicle.
To d i s a b l e a n d e n a b l e C r u i s eGrade Braking for the currentignition key cycle, press andhold the Tow/Haul button forfive seconds. A DIC messagedisplays. SeeTr a n s m i s s i o nMessages0157.
.Vehicles with a diesel enginehave Cruise Grade Brakingenabled when Tow/Haul Mode ison, the exhaust brake is on,or both are on.
For other forms of descent control,seeHill Descent Control (HDC)0297,Automatic Transmission0277,andTo w / H a u l M o d e0282.
Ending Cruise Control
There are four ways to end cruisecontrol:
.Step lightly on the brake pedal.
.Press*.
.Shift the transmission toN(Neutral).
.To t u r n o f f c r u i s e c o n t r o l ,
press5.
Erasing Speed Memory
The cruise control set speed is
erased from memory if5is pressed
or the ignition is turned off.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Driving and Operating 311
Fuel
For diesel engine vehicles, see“Fuel for Diesel Engines”in theDuramax diesel supplement.
GM recommends the use of TOPTIER Detergent Gasoline to keepthe engine cleaner and reduceengine deposits. Seewww.toptiergas.com for a list of TOPTIER Detergent Gasoline marketersand applicable countries.
If the vehicle has a yellow sticker onthe fuel door, E85 or FlexFuel canbe used. SeeE85 orFlexFuel0312.
Except the 6.2L engine, use regularunleaded gasoline meeting ASTMspecification D4814 with a postedoctane rating of 87 or higher. Do notuse gasoline with a posted octanerating of less than 87, as this maycause engine knock and will lowerfuel economy.
For the 6.2L engine, premiumunleaded gasoline meeting ASTMspecification D4814 with a postedoctane rating of 93 is highlyrecommended for best performanceand fuel economy. Unleadedgasoline with an octane rated as lowas 87 can be used. Using unleadedgasoline rated below 93 octane,however, will lead to reducedacceleration and fuel economy.If knocking occurs, use a gasolinerated at 93 octane as soon aspossible, otherwise, the enginecould be damaged. If heavyknocking is heard when usinggasoline with a 93 octane rating, theengine needs service.
Prohibited Fuels
Caution
Do not use fuels with any of the
following conditions; doing so
may damage the vehicle and void
its warranty:
.For vehicles which are notFlexFuel, fuel labeledgreater than 15% ethanol byvolume, such as mid-levelethanol blends (16–50%ethanol), E85, or FlexFuel.
.Fuel with any amount ofmethanol, methylal, andaniline. These fuels cancorrode metal fuel systemparts or damage plastic andrubber parts.
.Fuel containing metals suchas methylcyclopentadienylmanganese tricarbonyl(MMT), which can damagethe emissions controlsystem and spark plugs.
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Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
312 Driving and Operating
Caution (Continued)
.Fuel with a posted octanerating of less than therecommended fuel. Usingthis fuel will lower fueleconomy and performance,and may decrease the life ofthe emissions catalyst.
California Fuel
Requirements
If the vehicle is certified to meetCalifornia Emissions Standards, it isdesigned to operate on fuels thatmeet California specifications. Seethe underhood emission controllabel. If this fuel is not available instates adopting California EmissionsStandards, the vehicle will operatesatisfactorily on fuels meetingfederal specifications, but emissioncontrol system performance may beaffected. The malfunction indicatorlamp could turn on and the vehiclemay not pass a smog-check test.SeeMalfunction Indicator Lamp(Check Engine Light)0138.Ifthis
occurs, return to your authorizeddealer for diagnosis. If it isdetermined that the condition iscaused by the type of fuel used,repairs may not be covered by thevehicle warranty.
Fuels in Foreign
Countries
The U.S., Canada, and Mexico postfuel octane ratings in anti-knockindex (AKI). For fuel not to use in aforeign country, see“ProhibitedFuels”inFuel0311.
Fuel Additives
To k e e p f u e l s y s t e m s c l e a n , T O PTIER Detergent Gasoline isrecommended. SeeFuel0311.
If TOP TIER Detergent Gasoline isnot available, one bottle of GM FuelSystem Treatment Cleaner added tothe fuel tank at every engine oilchange, can help. GM Fuel SystemTreatment Cleaner is the onlygasoline additive recommended byGeneral Motors. It is available atyour dealer.
If your vehicle is able to use E85 orFlexFuel, GM Fuel SystemTreatment Cleaner - FlexFuel is theonly recommended additive for use.Do not use any other additives withan E85 or FlexFuel vehicle. SeeE85 or FlexFuel0312.
E85 or FlexFuel
Vehicles with a yellow sticker on thefuel door can use either unleadedgasoline or fuel containing up to85% ethanol (E85). All othervehicles should use only theunleaded gasoline as described inFuel0311.
The use of E85 or FlexFuel isencouraged when the vehicle isdesigned to use it. E85 or FlexFuelis made from renewable sources.
To h e l p l o c a t e f u e l s t a t i o n s t h a tcarry E85 or FlexFuel, the U.S.Department of Energy has analternative fuels website. Seewww.afdc.energy.gov/afdc/locator/stations.
E85 or FlexFuel should meetASTM Specification D 5798 orCAN/CGSB–3.512 in Canada. Do

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Driving and Operating 313
not use the fuel if the ethanolcontent is greater than 85%. Fuelmixtures that do not meet ASTM orCGSB specifications can affectdriveability and could cause themalfunction indicator lamp tocome on.
For the 6.0L V8 engine, afterrefueling, the vehicle calculates thecomposition of the fuel. It is notrecommended to repeatedly switchbetween fuels. If fuels are switchedfrequently, add as much fuel aspossible and do not add less than11 L ( 3 g a l ) w h e n r e f u e l i n g . D r i v e a tleast 11 km (7 mi) immediately afterrefueling to allow the vehicle toadapt to the change in ethanolconcentration.
Because E85 or FlexFuel has lessenergy per liter (gallon) thangasoline, the vehicle will need to berefilled more often. SeeFilling theTa n k0313.
Caution
Some additives are not
compatible with E85 or FlexFuel
and can harm the vehicle's fuel
system. Do not add anything to
E85 or FlexFuel. Damage caused
by additives would not be covered
by the vehicle warranty.
Caution
Do not use fuel containing
methanol. It can corrode metal
parts in the fuel system and also
damage plastic and rubber parts.
That damage would not be
covered under the vehicle
warranty.
Filling the Tank
If the vehicle has a diesel engine,see the Duramax diesel supplementfor more information.
{Warning
Fuel vapors and fuel fires burn
violently and can cause injury or
death.
.To h e l p a v o i d i n j u r i e s t o y o uand others, read and followall the instructions on thefuel pump island.
.Turn off the engine whenrefueling.
.Keep sparks, flames, andsmoking materials awayfrom fuel.
.Do not leave the fuel pumpunattended.
.Do not use a cell phonewhile refueling.
.Do not reenter the vehiclewhile pumping fuel.
.Keep children away fromthe fuel pump and never letchildren pump fuel.
(Continued)