2017 CHEVROLET SILVERADO Four wheel drive

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
274 Driving and Operating
1. Hold the brake pedal down,then set the parking brake.
SeeParking Brake0293.
2. Move the shift lever into theP(Park) position by pulling theshift lever toward you andmoving it up as far as it will go.
3. Be sure the transfer case (ifequipped) is in a drivegear—not in N (Neutral).
4. Turn the ignition key toLOCK/OFF.
5. Remove the key and take itwith you. If you can leave thevehicle with the ignition key inyour hand, the vehicle is inP(Park).
Leaving the Vehicle with the
Engine Running
{Warning
It can be dangerous to leave the
vehicle with the engine running.
The vehicle could move suddenly
(Continued)
Warning (Continued)
if the shift lever is not fully in
P(Park) with the parking brake
firmly set.
If you have four-wheel drive and
the transfer case is in N (Neutral),
the vehicle will be free to roll,
even if the shift lever is in
P(Park). So be sure the transfer
case is in a drive gear—not in
N(Neutral).
And, if you leave the vehicle with
the engine running, it could
overheat and even catch fire. You
or others could be injured. Do not
leave the vehicle with the engine
running unless you have to.
If you have to leave the vehicle withthe engine running, be sure thevehicle is in P (Park) and theparking brake is firmly set beforeyou leave it. After you move the shiftlever into P (Park), hold the regularbrake pedal down. Then, see if youcan move the shift lever away fromP(Park) without first pulling it toward
you. If you can, it means that theshift lever was not fully locked intoP(Park).
Torque Lock
If you are parking on a hill and youdo not shift the transmission intoP(Park) properly, the weight of thevehicle may put too much force onthe parking pawl in thetransmission. You may find it difficultto pull the shift lever out of P (Park).This is called torque lock. Toprevent torque lock, set the parkingbrake and then shift into P (Park)properly before you leave the driverseat. To find out how, seeShiftingInto Park0273.
When you are ready to drive, movethe shift lever out of P (Park) beforeyou release the parking brake.
If torque lock does occur, you mayneed to have another vehicle pushyours a little uphill to take some ofthe pressure from the parking pawlin the transmission. You will then beable to pull the shift lever out ofP(Park).

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
278 Driving and Operating
{Warning
If you have four-wheel drive, the
vehicle will be free to roll—even
if the shift lever is in P (Park)—if
the transfer case is in N (Neutral).
So, be sure the transfer case is in
adrivegear,Two-WheelDrive
High or Four-Wheel Drive High or
Four-Wheel Drive Low—not in
N(Neutral). SeeShifting Into
Park0273.
R:Use this gear to back up.
Caution
Shifting to R (Reverse) while the
vehicle is moving forward could
damage the transmission. The
repairs would not be covered by
the vehicle warranty. Shift to
R(Reverse) only after the vehicle
is stopped.
To r o c k t h e v e h i c l e b a c k a n d f o r t h t oget out of snow, ice, or sand withoutdamaging the transmission, seeIfthe Vehicle Is Stuck0258.
N:In this position, the engine doesnot connect with the wheels. Torestart when you are alreadymoving, use N (Neutral) only. Also,use N (Neutral) when the vehicle isbeing towed.
{Warning
Shifting into a drive gear while the
engine is running at high speed is
dangerous. Unless your foot is
firmly on the brake pedal, the
vehicle could move very rapidly.
Yo u c o u l d l o s e c o n t r o l a n d h i t
people or objects. Do not shift
into a drive gear while the engine
is running at high speed.
Caution
Shifting out of P (Park) or
N(Neutral) with the engine
running at high speed may
damage the transmission. The
repairs would not be covered by
the vehicle warranty. Be sure the
engine is not running at high
speed when shifting the vehicle.
D:This position is for normaldriving. It provides the best fueleconomy. If you need more powerfor passing, and you are:
.Going less than about 55 km/h(35 mph), push the acceleratorpedal about halfway down.
.Going about 55 km/h (35 mph) ormore, push the accelerator allthe way down.
By doing this, the vehicle shiftsdown to the next gear and hasmore power.
Use D (Drive) and Tow/Haul Modewhen towing a trailer, carrying aheavy load, driving on steep hills,

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
284 Driving and Operating
Neutral and release the clutchpedal. Then press the clutch againand shift into R (Reverse). Do notattempt to shift into 5 (Fifth) prior toshifting into R (Reverse). Thetransmission has a lock out feature,which prevents a 5 (Fifth) gear toR(Reverse) gear shift.
Caution
Shifting to R (Reverse) while the
vehicle is moving forward could
damage the transmission. The
repairs would not be covered by
the vehicle warranty. Shift to
R(Reverse) only after the vehicle
is stopped.
Use R (Reverse), along with theparking brake, for parking thevehicle.
Shift Speeds
{Warning
If you skip a gear when
downshifting, you could lose
control of the vehicle. You could
injure yourself or others. Do not
shift down more than one gear at
atimewhendownshifting.
Drive Systems
Four-Wheel Drive
If equipped, four-wheel driveengages the front axle for extratraction. Read the appropriatesection for transfer case operationbefore using.
Caution
Do not drive on clean, dry
pavement in 4mand 4n(if
equipped) for an extended period
of time. These conditions may
cause premature wear on the
vehicle’spowertrain.
Driving on clean, dry pavement in4HI or 4LO may:
.Cause a vibration to be felt inthe steering system.
.Cause tires to wear faster.
.Make the transfer case harder toshift, and cause it to run noisier.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Driving and Operating 285
{Warning
Shifting the transfer case to
N(Neutral) can cause the vehicle
to roll even if the transmission is
in P (Park). You or someone else
could be seriously injured. Be
sure to set the parking brake
before placing the transfer case in
N(Neutral). SeeParking
Brake0293.
Caution
Extended high-speed operation in
4nmay damage or shorten the
life of the drivetrain.
Engagement noise and bump when
shifting between 4nand 4mor from
N(Neutral), with the engine running,is normal.
Shifting into 4nwill turn Traction
Control and StabiliTrak®off. SeeTr a c t i o n C o n t r o l / E l e c t r o n i c S t a b i l i t yControl0295.
Manual Transfer Case
Move the lever to shift into and outof four-wheel drive.
An indicator light comes on whenfour-wheel drive is engaged. SeeFour-Wheel-Drive Light0141.
N(Neutral) :Use only when thevehicle needs to be towed. SeeRecreational Vehicle Towing0437orTo w i n g t h e V e h i c l e0436.
2m(Two-Wheel Drive High) :Use
this setting for driving on moststreets and highways. The front axleis not engaged. This settingprovides the best fuel economy.
4n(Four-Wheel Drive Low) :This
setting also engages the front axleand delivers extra torque. Choose 4nif driving off-road in deep sand,deep mud, or deep snow, and whileclimbing or descending steep hills.When engaged, keep vehicle speedbelow 72 km/h (45 mph).
4m(Four-Wheel Drive High) :Use
this setting when extra traction isneeded. The front axle engages andhelps when driving on snowy or icyroads, when off-roading, or whenplowing snow.
The vehicle can be shifted between
2mand 4mwhile the vehicle is
moving. In extremely cold weather,it may be necessary to stop or slow

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
286 Driving and Operating
the vehicle to shift into 4m.
Using the Manual Transfer Case
.Use quick motions to shift into or
out of 4nor N (Neutral).
.Shifting may be harder when thevehicle is cold, but will return tonormal once warmed up.
.Four-wheel drive reduces fueleconomy.
Shifting from 2mto 4m
.Shifts can be made at anyvehicle speed.
.Shift in one continuous motion.
.Shifting while the vehicle is inmotion may require thatmoderate force be applied to the
shift lever before 4mcan be
engaged, especially in coldweather.
.In extremely cold weather, it maybe necessary to slow or stop thevehicle to shift.
.While in 4m,thevehiclecanbe
driven at any posted legal speedlimit.
Shifting In or Out of 4n
Caution
Shifting the transfer case into 4n
while moving at speeds faster
than 5 km/h (3 mph) may cause
premature wear to the transfer
case, and may cause the gears to
grind.
1. If possible, shift with thevehicle moving 5 km/h (3 mph)or less.
2. Shift the transmission intoN(Neutral).
3. Shift the transfer case shiftlever in one continuous motion.
4. Shifting with the vehicle at astop may be more difficult. It ispossible that the shift will notcomplete and the transfer casewill remain in N (Neutral). Thisis normal. To complete theshift, with the engine running,shift the transmission to
D(Drive) and back toN(Neutral), and reattempt thetransfer case shift.
Shifting In or Out of N (Neutral)
1. Have the engine running.
2. Set the parking brake. Pressand hold the brake pedal. SeeParking Brake0293.
3. Place the transmission intoN(Neutral).
4. Shift the transfer case lever inone continuous motion into orout of N (Neutral).
Electronic Transfer Case

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Driving and Operating 287
Use the transfer case knob, next tothe steering wheel, to shift into andout of four-wheel drive for extratraction.
All of the lights will blink on then offmomentarily when the ignition ismoved to the ON/RUN position. Thelight that remains on will indicate thestate of the Transfer Case.
If the indicator mark on the switchdoes not match up with the lightthen that likely means the switchwas moved when the ignitionwas off.
The indicator mark on the switchmust line up with the indicator lightbefore a shift can be commanded.To c o m m a n d a s h i f t r o t a t e t h etransfer case switch to the newdesired position. The light will blinkmeaning that the shift is in progress.When the shift is completed the newposition will be illuminated. If thetransfer case can not complete ashift command, it will go back to itslast chosen setting.
Caution
Shifting the transmission into gear
before the requested mode
indicator light has stopped
flashing could damage the
transfer case.
The settings are:
N(Neutral) :Use only when thevehicle needs to be towed. SeeRecreational Vehicle Towing0437orTo w i n g t h e V e h i c l e0436.
2m(Two-Wheel Drive High) :Use
for driving on most streets andhighways. The front axle is notengaged. This setting provides thebest fuel economy.
4n(Four-Wheel Drive Low) :This
setting engages the front axle and
delivers extra torque. Choose 4nif
driving off-road in deep sand, deepmud, or deep snow, and whileclimbing or descending steep hills.When engaged, keep vehicle speedbelow 72 km/h (45 mph).
Shifting into 4nwill turn Traction
Control and StabiliTrak off. SeeTr a c t i o n C o n t r o l / E l e c t r o n i c S t a b i l i t yControl0295.
4m(Four-Wheel Drive High) :Use
when extra traction is needed. Thefront axle engages and helps whendriving on snowy or icy roads, whenoff-roading, or when plowing snow.
The vehicle can be shifted from 2m
to 4mwhile the vehicle is moving.
Shifting Into 4m
Turn the knob to 4mat any speed
up to 121 km/h (75 mph), except
from 4n.Theindicatorlightwillflash
while shifting and will remain on theselected setting.
Shifting Into 2m
Turn the knob to 2mat any speed,
except when shifting from 4n.
Shifting Into 4n
When 4nis engaged, vehicle speed
should be kept below 72 km/h(45 mph).

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Driving and Operating 289
10. Turn the ignition to LOCK/OFF.
Shifting Out of N (Neutral)
To s h i f t :
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 to
2m.
After the transfer case hasshifted out of N (Neutral), theN(Neutral) light will goout.
5. Release the parking brake.
Caution
Shifting the transmission into gear
before the requested mode
indicator light has stopped
flashing could damage the
transfer case.
6. Start the engine and shift thetransmission to thedesired gear.
Automatic Transfer Case
If equipped, use the transfer caseknob next to the steering wheel toshift into and out of four-wheel drive.
All of the lights will blink on then offmomentarily when the ignition ismoved to the ON/RUN position. Thelight that remains on will indicate thestate of the Transfer Case.
If the indicator mark on the switchdoes not match up with the lightthen that likely means the switchwas moved when the ignitionwas off.
The indicator mark on the switchmust line up with the indicator lightbefore a shift can be commanded.To c o m m a n d a s h i f t r o t a t e t h etransfer case switch to the newdesired position. The light will blinkmeaning that the shift is in progress.When the shift is completed the newposition will be illuminated. If thetransfer case can not complete ashift command, it will go back to itslast chosen setting.
The settings are:
N(Neutral) :Use only when thevehicle needs to be towed. SeeRecreational Vehicle Towing0437orTo w i n g t h e V e h i c l e0436.
2m(Two-Wheel Drive High) :Use
for driving on most streets andhighways. The front axle is notengaged. This setting provides thebest fuel economy.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
290 Driving and Operating
AUTO (Automatic Four-WheelDrive) :Use when road surfacetraction conditions are variable.When driving in AUTO, the frontaxle is engaged, and the vehicle'spower is sent to the front and rearwheels automatically based ondriving conditions. This settingprovides slightly lower fuel economy
than 2m.
Do not use AUTO mode,if equipped, to park on a steepgrade with poor traction such as ice,snow, mud, or gravel. In AUTOmode only the rear wheels will holdthe vehicle from sliding whenparked. If parking on a steep grade,
use 4mto keep all four wheels
engaged.
4m(Four-Wheel Drive High) :Use
this position when extra traction isneeded, such as when driving onsnowy or icy roads, whenoff-roading, or when plowing snow.
4n(Four-Wheel Drive Low) :This
setting engages the front axle and
delivers extra torque. Choose 4n
when driving off-road in deep sand,deep mud, or deep snow, and whileclimbing or descending steep hills.
Shifting into 4nwill turn Traction
Control and StabiliTrak off. SeeTr a c t i o n C o n t r o l / E l e c t r o n i c S t a b i l i t yControl0295.
Shifting Into 4mor AUTO
Turn the knob to the 4mor AUTO
position at any speed, except from
4n.Theindicatorlightwillflash
while shifting and will remain onwhen the shift is completed.
Shifting Into 2m
Turn the knob to 2mat any speed,
except when shifting from 4n.The
indicator light will flash while shiftingand will remain on when the shift iscompleted.
Shifting Into 4n
When 4nis engaged, keep vehicle
speed below 72 km/h (45 mph).
To s h i f t :
1. The ignition must be in ON/RUN and the vehicle must bestopped or moving less than5km/h (3mph) with thetransmission in N (Neutral). It isbest for the vehicle to bemoving 1.6 to 3.2 km/h(1 to 2 mph).
2. Turn the knob to 4n.Waitfor
the 4nindicator 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.