2018 CHEVROLET SILVERADO 1500 Z71 traction control

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
182 Infotainment System
The infotainment system has built-in
features intended to help avoid
distraction by disabling some
functions when driving. These
functions may gray out when they
are unavailable. Many infotainment
features are also available through
the instrument cluster and steering
wheel controls.
Before driving:
.Become familiar with the
operation, center stack controls,
and infotainment display
controls. .
Set up the audio by presetting
favorite stations, setting the
tone, and adjusting the
speakers.
. Set up phone numbers in
advance so they can be called
easily by pressing a single
control or by using a single voice
command if equipped with
Bluetooth phone capability.
See Defensive Driving 0228.
To play the infotainment system with
the ignition off, see Retained
Accessory Power (RAP) 0251.Theft-Deterrent Feature
TheftLock is designed to discourage
theft of the vehicle's radio by
learning a portion of the Vehicle
Identification Number (VIN). The
radio does not operate if it is stolen
or moved to a different vehicle.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
Infotainment System 203
“Voice Mail”:Initiate a call to voice
mail numbers.
Voice Recognition for OnStar
(If Equipped)
“OnStar” :Begin OnStar Voice
Recognition.
Bluetooth Speech Recognition
(If Equipped)
Voice Pass-Thru allows access to
the speech recognition commands
on the cell phone. See your cell
phone manufacturer ’s user guide to
see if the cell phone supports this
feature. Activating this function will start the
Bluetooth Speech Recognition on a
connected phone.
The steering wheel controls are
used to operate this function.
Press and hold
gto activate.
A voice session begins so that voice
commands can be given to Siri or
many other controls provided by the
cell phone.
Press
@to exit or pressito
close and return to the previous
application prior to the start of Voice
Pass-Thru.
Phone
Bluetooth (Overview)
Instructions for using the cell phone
may differ between infotainment
systems. The base radio are
included in this manual. See the
infotainment manual for instructions
on the uplevel radios.
Bluetooth-capable systems can
interact with many cell phones,
allowing:
. Placement and receipt of calls in
a hands-free mode.
. Sharing of the cell phone’s
address book or contact list with
the vehicle.
To minimize driver distraction,
before driving, and with the vehicle
parked:
. Become familiar with the
features of the cell phone.
Organize the phone book and
contact lists clearly and delete
duplicate or rarely used entries.
If possible, program speed dial
or other shortcuts.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
226 Driving and Operating
Driving and
Operating
Driving Information
Distracted Driving . . . . . . . . . . . . 227
Defensive Driving . . . . . . . . . . . . . 228
Drunk Driving . . . . . . . . . . . . . . . . . 228
Control of a Vehicle . . . . . . . . . . . 228
Braking . . . . . . . . . . . . . . . . . . . . . . . 228
Steering . . . . . . . . . . . . . . . . . . . . . . 229
Off-Road Recovery . . . . . . . . . . . 230
Loss of Control . . . . . . . . . . . . . . . 230
Off-Road Driving . . . . . . . . . . . . . 231
Driving on Wet Roads . . . . . . . . 235
Hill and Mountain Roads . . . . . 236
Winter Driving . . . . . . . . . . . . . . . . 237
If the Vehicle Is Stuck . . . . . . . . 238
Vehicle Load Limits . . . . . . . . . . . 239
Truck-Camper LoadingInformation . . . . . . . . . . . . . . . . . . 245
Starting and Operating
New Vehicle Break-In . . . . . . . . . 247
Adjustable Throttle and BrakePedal . . . . . . . . . . . . . . . . . . . . . . . 247
Ignition Positions . . . . . . . . . . . . . 248
Starting the Engine . . . . . . . . . . . 249
Fast Idle System . . . . . . . . . . . . . 251 Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . . 251
Engine Coolant Heater . . . . . . . 252
Shifting Into Park . . . . . . . . . . . . . 253
Shifting out of Park . . . . . . . . . . . 255
Parking (Manual Transmission) . . . . . . . . . . . . . . . 255
Parking over Things That Burn . . . . . . . . . . . . . . . . . . . 255
Active Fuel Management . . . . . 256
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . 256
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . 257
Automatic Transmission
Automatic Transmission . . . . . . 257
Manual Mode . . . . . . . . . . . . . . . . . 260
Tow/Haul Mode . . . . . . . . . . . . . . . 262
Manual Transmission
Manual Transmission . . . . . . . . . 263
Drive Systems
Four-Wheel Drive . . . . . . . . . . . . . 265
Brakes
Antilock BrakeSystem (ABS) . . . . . . . . . . . . . . . 273
Parking Brake . . . . . . . . . . . . . . . . 273
Brake Assist . . . . . . . . . . . . . . . . . . 275 Hill Start Assist (HSA) . . . . . . . . 275
Ride Control Systems
Traction Control/Electronic
Stability Control . . . . . . . . . . . . . 276
Hill Descent Control (HDC) . . . 277
Locking Rear Axle . . . . . . . . . . . . 278
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . 279
Driver Assistance Systems
Driver Assistance Systems . . . 281
Assistance Systems for Parking or Backing . . . . . . . . . . 282
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . 285
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . 285
Forward Automatic Braking (FAB) . . . . . . . . . . . . . . . 287
Lane Departure Warning (LDW) (2500/3500
Series) . . . . . . . . . . . . . . . . . . . . . . 288
Lane Keep Assist (LKA) (1500 Series) . . . . . . . . . . . . . . . . . . . . . . 290
Fuel
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 292
California FuelRequirements . . . . . . . . . . . . . . . 293
Fuels in Foreign Countries . . . 293

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
Driving and Operating 227
Fuel Additives . . . . . . . . . . . . . . . . 293
E85 or FlexFuel . . . . . . . . . . . . . . 293
Filling the Tank . . . . . . . . . . . . . . . 294
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 296
Trailer Towing
General Towing
Information . . . . . . . . . . . . . . . . . . 296
Driving Characteristics and Towing Tips . . . . . . . . . . . . . . . . . 296
Trailer Towing . . . . . . . . . . . . . . . . 300
Towing Equipment . . . . . . . . . . . . 318
Trailer Sway Control (TSC) . . . 327
Conversions and Add-Ons
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . . 329
Adding a Snow Plow or Similar Equipment . . . . . . . . . . . . . . . . . . 330
Pickup Conversion to Chassis Cab . . . . . . . . . . . . . . . . 333
Driving Information
Distracted Driving
Distraction comes in many forms
and can take your focus from the
task of driving. Exercise good
judgment and do not let other
activities divert your attention away
from the road. Many local
governments have enacted laws
regarding driver distraction. Become
familiar with the local laws in
your area.
To avoid distracted driving, keep
your eyes on the road, keep your
hands on the steering wheel, and
focus your attention on driving.
. Do not use a phone in
demanding driving situations.
Use a hands-free method to
place or receive necessary
phone calls.
. Watch the road. Do not read,
take notes, or look up
information on phones or other
electronic devices. .
Designate a front seat
passenger to handle potential
distractions.
. Become familiar with vehicle
features before driving, such as
programming favorite radio
stations and adjusting climate
control and seat settings.
Program all trip information into
any navigation device prior to
driving.
. Wait until the vehicle is parked
to retrieve items that have fallen
to the floor.
. Stop or park the vehicle to tend
to children.
. Keep pets in an appropriate
carrier or restraint.
. Avoid stressful conversations
while driving, whether with a
passenger or on a cell phone.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
Driving and Operating 231
If the vehicle starts to slide, follow
these suggestions:
.Ease your foot off the
accelerator pedal and steer the
way you want the vehicle to go.
The vehicle may straighten out.
Be ready for a second skid if it
occurs.
. Slow down and adjust your
driving according to weather
conditions. Stopping distance
can be longer and vehicle
control can be affected when
traction is reduced by water,
snow, ice, gravel, or other
material on the road. Learn to
recognize warning clues —such
as enough water, ice, or packed
snow on the road to make a
mirrored surface —and slow
down when you have any doubt.
. Try to avoid sudden steering,
acceleration, or braking,
including reducing vehicle speed
by shifting to a lower gear. Any
sudden changes could cause
the tires to slide. Remember: Antilock brakes help
avoid only the braking skid.
Off-Road Driving
Four-wheel-drive vehicles can be
used for off-road driving. Vehicles
without four-wheel drive and
vehicles not equipped with All
Terrain (AT) or On-Off Road (OOR)
tires must not be driven off-road
except on a level, solid surface. For
contact information about the
original equipment tires, see the
warranty manual.
One of the best ways for successful
off-road driving is to control the
speed.
{Warning
When driving off-road, bouncing
and quick changes in direction
can easily throw you out of
position. This could cause you to
lose control and crash. You and
your passengers should always
wear seat belts.
Before Driving Off-Road
.
Have all necessary maintenance
and service work completed.
. Fuel the vehicle, fill fluid levels,
and check inflation pressure in
all tires, including the spare,
if equipped.
. Read all the information about
four-wheel-drive vehicles in this
manual.
. Remove any underbody air
deflector, if equipped. Re-attach
the air deflector after off-road
driving.
. Know the local laws that apply to
off-road driving.
To gain more ground clearance if
needed, it may be necessary to
remove the front fascia lower air
dam, if equipped. However, driving
without the air dam reduces fuel
economy.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
232 Driving and Operating
Caution
Operating the vehicle for
extended periods without the front
fascia lower air dam installed can
cause improper airflow to the
engine. Reattach the front fascia
air dam after off-road driving.
Loading the Vehicle for
Off-Road Driving
{Warning
.Unsecured cargo on the
load floor can be tossed
about when driving over
rough terrain. You or your
passengers can be struck
by flying objects. Secure the
cargo properly.
. Keep cargo in the cargo
area as far forward and as
low as possible. The
(Continued)
Warning (Continued)
heaviest things should be
on the floor, forward of the
rear axle.
. Heavy loads on the roof
raise the vehicle's center of
gravity, making it more likely
to roll over. You can be
seriously or fatally injured if
the vehicle rolls over. Put
heavy loads inside the
cargo area, not on the roof.
For more information about loading
the vehicle, see Vehicle Load Limits
0 239 andTires 0384.
Environmental Concerns
.
Always use established trails,
roads, and areas that have been
set aside for public off-road
recreational driving and obey all
posted regulations.
. Do not damage shrubs, flowers,
trees, or grasses or disturb
wildlife. .
Do not park over things that
burn. See Parking over Things
That Burn 0255.
Driving on Hills
Driving safely on hills requires good
judgment and an understanding of
what the vehicle can and cannot do.
{Warning
Many hills are simply too steep
for any vehicle. Driving up hills
can cause the vehicle to stall.
Driving down hills can cause loss
of control. Driving across hills can
cause a rollover. You could be
injured or killed. Do not drive on
steep hills.
Before driving on a hill, assess the
steepness, traction, and
obstructions. If the terrain ahead
cannot be seen, get out of the
vehicle and walk the hill before
driving further.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
234 Driving and Operating
.Never try to turn the vehicle
around. If the hill is steep
enough to stall the vehicle,
it is steep enough to cause
it to roll over.
. If you cannot make it up the
hill, back straight down
the hill.
. Never back down a hill in
N (Neutral) using only the
brake. The vehicle can roll
backward quickly and you
could lose control.
. If driving downhill when the
vehicle stalls, shift to a
lower gear, release the
parking brake, and drive
straight down the hill.
3. If the vehicle cannot be restarted after stalling, set the
parking brake, shift into
P (Park), and turn the
vehicle off.
3.1. Leave the vehicle and
seek help. 3.2. Stay clear of the path the
vehicle would take if it
rolled downhill.
. Avoid turns that take the vehicle
across the incline of the hill.
A hill that can be driven straight
up or down might be too steep to
drive across. Driving across an
incline puts more weight on the
downhill wheels, which could
cause a downhill slide or a
rollover.
. Surface conditions can be a
problem. Loose gravel, muddy
spots, or even wet grass can
cause the tires to slip sideways,
downhill. If the vehicle slips
sideways, it can hit something
that will trip it —a rock, a rut,
etc. —and roll over.
. Hidden obstacles can make the
steepness of the incline more
severe. If a rock is driven across
with the uphill wheels, or if the
downhill wheels drop into a rut
or depression, the vehicle can tilt
even more. .
If an incline must be driven
across, and the vehicle starts to
slide, turn downhill. This should
help straighten out the vehicle
and prevent the side slipping.
{Warning
Getting out of the vehicle on the
downhill side when stopped
across an incline is dangerous.
If the vehicle rolls over, you could
be crushed or killed. Always get
out on the uphill side of the
vehicle and stay well clear of the
rollover path.
Driving in Mud, Sand, Snow,
or Ice
Use a low gear when driving in mud
—the deeper the mud, the lower
the gear. Keep the vehicle moving
to avoid getting stuck.
Traction changes when driving on
sand. On loose sand, such as on
beaches or sand dunes, the tires
tend to sink into the sand. This
affects steering, accelerating, and

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
Driving and Operating 235
braking. Drive at a reduced speed
and avoid sharp turns or abrupt
maneuvers.
Traction is reduced on hard packed
snow and ice and it is easy to lose
control. Reduce vehicle speed when
driving on hard packed snow
and ice.
{Warning
Driving on frozen lakes, ponds,
or rivers can be dangerous. Ice
conditions vary greatly and the
vehicle could fall through the ice;
you and your passengers could
drown. Drive your vehicle on safe
surfaces only.
Driving in Water
{Warning
Driving through rushing water can
be dangerous. Deep water can
sweep your vehicle downstream
and you and your passengers(Continued)
Warning (Continued)
could drown. If it is only shallow
water, it can still wash away the
ground from under your tires.
Traction could be lost, and the
vehicle could roll over. Do not
drive through rushing water.
Caution
Do not drive through standing
water if it is deep enough to cover
the wheel hubs, axles, or exhaust
pipe. Deep water can damage the
axle and other vehicle parts.
If the standing water is not too deep,
drive through it slowly. At faster
speeds, water can get into the
engine and cause it to stall. Stalling
can occur if the exhaust pipe is
under water. Do not turn off the
ignition when driving through water.
If the exhaust pipe is under water,
the engine will not start. When going
through water, the brakes get wet and it may take longer to stop. See
“Driving on Wet Roads”
later in this
section.
After Off-Road Driving
Remove any brush or debris that
has collected on the underbody or
chassis, or under the hood. These
accumulations can be a fire hazard.
After operation in mud or sand,
have the brake linings cleaned and
checked. These substances can
cause glazing and uneven braking.
Check the body structure, driveline,
steering, suspension, wheels, tires,
and exhaust system for damage and
check the fuel lines and cooling
system for any leakage.
More frequent maintenance service
is required. See the Maintenance
Schedule 0443.
Driving on Wet Roads
Rain and wet roads can reduce
vehicle traction and affect your
ability to stop and accelerate.
Always drive slower in these types