2018 CHEVROLET SILVERADO 1500 Z71 key

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
Vehicle Care 427
Warning (Continued)
be injured. Set the parking brake
before shifting the transfer case
to N (Neutral).
To dinghy tow: 1. Position the vehicle being towed behind the tow vehicle,
facing forward and on a level
surface.
2. Securely attach the vehicle being towed to the tow vehicle.
3. Apply the parking brake and start the engine.
4. Shift the transfer case to N (Neutral). See “Shifting into
N (Neutral)” underFour-Wheel
Drive 0265. Check that the
vehicle is in N (Neutral) by
shifting the transmission to
R (Reverse) and then to D
(Drive). There should be no
movement of the vehicle while
shifting.
5. Turn the engine off.
Caution
Failure to disconnect the negative
battery cable or to have it contact
the terminals can cause damage
to the vehicle.
6. Disconnect the negative battery cable at the battery and
secure the nut and bolt. Cover
the negative battery post with a
non-conductive material to
prevent any contact with the
negative battery terminal.
7. Shift the transmission to P (Park).
Caution
If the steering column is locked,
vehicle damage may occur.
8. Move the steering wheel to make sure the steering column
is unlocked. 9. With a foot on the brake pedal,
release the parking brake.
Keep the ignition key in the
towed vehicle in ACC/
ACCESSORY to prevent the
steering column from locking.
Disconnecting the Towed Vehicle
Before disconnecting the towed
vehicle: 1. Park on a level surface.
2. Set the parking brake, then shift the transmission to
P (Park), and move the ignition
key to OFF.
3. Connect the battery.
4. Apply the brake pedal.
5. Turn the ignition on with the engine off. Shift the transfer
case out of N (Neutral) to
Two-Wheel Drive High. See
“Shifting out of N (Neutral)”
under Four-Wheel Drive 0265.
See your dealer if the transfer
case cannot be shifted out of
N (Neutral).

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
Vehicle Care 435
Steering, Suspension, and
Chassis Components
Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of wear at
least once a year.
Inspect power steering for proper
attachment, connections, binding,
leaks, cracks, chafing, etc.
Visually check constant velocity joint
boots and axle seals for leaks.
1500 Series vehicles, at least every
other oil change lubricate the outer
tie rod ends.
2500/3500 Series vehicles, at least
every other engine oil change
lubricate the upper and lower
control arm ball joints. Control arm
ball joints on 1500 series vehicles
are maintenance-free.
2500/3500 Series vehicles equipped
with steering linkage, at least every
other engine oil change lubricate the
tie rod ball joints, idler arm pivot
shaft bearings, idler arm socket, and
pitman arm socket.
Caution
Lubrication of applicable steering/
suspension points should not be
done unless the temperature is
−12 °C (10 °F) or higher,
or damage could result.
For an eAssist vehicle, see the
Silverado/Sierra eAssist
supplement.
Body Component Lubrication
Lubricate all key lock cylinders,
hood hinges, liftgate hinges, and the
steel fuel door hinge unless the
components are plastic. Applying
silicone grease on weatherstrips
with a clean cloth will make them
last longer, seal better, and not stick
or squeak.
Underbody Maintenance
At least twice a year, spring and fall,
use plain water to flush any
corrosive materials from the
underbody. Take care to thoroughly
clean any areas where mud and other debris can collect. If equipped
with power assist steps, extend
them and then use a high pressure
wash to clean all joints and gaps.
Do not directly power wash the
transfer case and/or front/rear axle
output seals. High pressure water
can overcome the seals and
contaminate the fluid. Contaminated
fluid will decrease the life of the
transfer case and/or axles and
should be replaced.
Sheet Metal Damage
If the vehicle is damaged and
requires sheet metal repair or
replacement, make sure the body
repair shop applies anti-corrosion
material to parts repaired or
replaced to restore corrosion
protection.
Original manufacturer replacement
parts will provide the corrosion
protection while maintaining the
vehicle warranty.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
444 Service and Maintenance
.Check tire inflation pressures.
See Tire Pressure 0392.
. Inspect tire wear. See Tire
Inspection 0399.
. Visually check for fluid leaks.
. Inspect engine air cleaner filter.
See Engine Air Cleaner/Filter
0 351.
. Inspect brake system. See
Exterior Care 0430.
. Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of
wear. See Exterior Care 0430.
Lubricate the suspension and
steering components at least
every other oil change.
(If equipped with grease fittings)
. Check restraint system
components. See Safety System
Check 075. .
Visually inspect fuel system for
damage or leaks.
. Visually inspect exhaust system
and nearby heat shields for
loose or damaged parts.
. Lubricate body components. See
Exterior Care 0430.
. Check starter switch. See Starter
Switch Check 0367.
. Check automatic transmission
shift lock control function. See
Automatic Transmission Shift
Lock Control Function Check
0368.
. Check ignition transmission lock.
See Ignition Transmission Lock
Check 0368.
. Check parking brake and
automatic transmission park
mechanism. See Park Brake and
P (Park) Mechanism Check
0 368. .
Check accelerator pedal for
damage, high effort, or binding.
Replace if needed.
. Visually inspect gas strut for
signs of wear, cracks, or other
damage. Check the hold open
ability of the strut. If the hold
open is low, service the gas
strut. See Gas Strut(s) 0370.
. Inspect sunroof track and seal,
if equipped. See Sunroof055.
. Verify spare tire key lock
operation and lubricate as
needed. See Tire Changing
0 410.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
452 Service and Maintenance
UsageFluid/Lubricant
Front Axle Driveshaft Splines (All
4WD 1500/2500/3500 Series) and
Rear Axle Driveshaft Splines (All
2WD 1500 Series with Automatic Transmission) Spline Lubricant, Special Lubricant (GM Part No. 19257121, in
Canada 19257122).
Front Axle (Four-Wheel Drive) SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88900401, in Canada 89021678).
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid (GM Part No. 19353126, in Canada 19299819).
Hydraulic Clutch System DOT 4 Hydraulic Brake Fluid (GM Part No. 19299570).
Hydraulic Power Steering System (2500/3500 Series Only) GM Power Steering Fluid (GM Part No. 19329450, in Canada 19329451).
Key Lock Cylinders, Hood Hinges, Body Door Hinge Pins, Tailgate
Hinge and Linkage, Fuel Door Hinge, Tailgate Handle Pivot Points, Hinges, Latch Bolt, and Linkage Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in
Canada 10953474).
Manual Transmission Manual Transmission Fluid (GM Part No. 93436060).
Rear Axle (1500 Series) SAE 75W-85 Synthetic Axle Lubricant (GM Part No. 19300457, in Canada 19300458).
Rear Axle (2500/3500 Series) SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88900401, in Canada 89021678).

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
476 OnStar
Press=to:
. Open the OnStar app on the
infotainment display. See the
infotainment manual for
information on how to use the
OnStar app.
Or
. Make a call, end a call,
or answer an incoming call.
. Give OnStar Hands-Free Calling
voice commands.
. Give OnStar Turn-by-Turn
Navigation voice commands.
. Obtain and customize the Wi-Fi
hotspot name or SSID and
password, if equipped. PressQto connect to an
Advisor to:
. Verify account information or
update contact information.
. Get driving directions.
. Receive a Diagnostic check of
the vehicle's key operating
systems.
. Receive Roadside Assistance.
. Manage Wi-Fi Settings,
if equipped.
Press
>to get a priority connection
to an OnStar Advisor available
24/7 to:
. Get help for an emergency.
. Be a Good Samaritan or
respond to an AMBER Alert.
. Get assistance in severe
weather or other crisis situations
and find evacuation routes.
OnStar Services
Emergency
Emergency Services require an
active, OnStar service plan
(excludes Basic Plan). With
Automatic Crash Response, built-in
sensors can automatically alert a
specially trained OnStar Advisor
who is immediately connected in to
the vehicle to help.
Press
>for a priority connection to
an OnStar Advisor who can contact
emergency service providers, direct
them to your exact location, and
relay important information.
With OnStar Crisis Assist, specially
trained Advisors are available
24 hours a day, 7 days a week, to
provide a central point of contact,
assistance, and information during a
crisis.
With Roadside Assistance, Advisors
can locate a nearby service provider
to help with a flat tire, a battery
jump, or an empty gas tank.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
480 OnStar
3. Say the entire number withoutpausing, including a “1”and the
area code. System responds:
“OK, calling.”
Calling 911 Emergency
1. Press=. System responds:
“OnStar ready.”
2. Say “Call.”System responds:
“Call. Please say the name or
number to call.”
3. Say “911”without pausing.
System responds: “911.”
4. Say “Call.”System responds:
“OK, dialing 911.”
Retrieve My Number
1. Press=. System responds:
“OnStar ready.”
2. Say “My number.” System
responds: “Your OnStar
Hands-Free Calling number is,”
then says the number.
End a Call
Press=. System responds: “Call
ended.”
Verify Minutes and Expiration
Press=and say “Minutes” then
“Verify” to check how many minutes
remain and their expiration date.
Diagnostics
By monitoring and reporting on the
vehicle’s key systems, OnStar
Advanced Diagnostics provides a
way to keep up on maintenance.
Capabilities vary by model. See
www.onstar.com for details and
system limitations. Message and
data rates may apply.
Advanced Diagnostics requires an
active OnStar paid service plan,
e-mail address on file, and
enrollment in Advanced Diagnostics.
Includes:
. Diagnostic Alerts: Set
preferences to receive real-time
e-mails, texts, or monthly reports
of the vehicle’s health. Or
press
Qto have an Advisor
initiate a remote diagnostic
report. .
Proactive Alerts: Receive a
real-time e-mail or text message
regarding potential issues with
key vehicle components, such
as the battery, fuel system,
or starter system. Alerts for
potential issues appear on the
infotainment display. Proactive
Alerts are designed to help
predict specific types of issues
based on information collected
from the vehicle. Other factors
may affect vehicle performance.
Not all issues will deliver alerts.
In some cases, a dealer service
check may be required to
confirm the accuracy of the
alerts.
. Dealer Maintenance Notification:
Have the vehicle notify your
preferred dealer when it is time
for maintenance. Your dealer will
then contact you to set up an
appointment.
To begin, pressQto speak to an
Advisor, or see www.onstar.com.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
492 Index
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . 371
Hazard Warning Flashers . . . . . . . 175
Head Restraints . . . . . . . . . . . . . . . . . 58
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . 371
Automatic . . . . . . . . . . . . . . . . . . . . . 174
Bulb Replacement . . . . . . . . . . . . 371
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . 174
Flash-to-Pass . . . . . . . . . . . . . . . . . 174
Headlamps, Front Turn Signal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . . . 372
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . 371
High-Beam On Light . . . . . . . . . . 154
High/Low Beam Changer . . . . . 173
Lamps On Reminder . . . . . . . . . 154
Heated Steering Wheel . . . . . . . . . . . . . . . 130
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Heated Mirrors . . . . . . . . . . . . . . . . . . . 50
Heater
Engine Coolant . . . . . . . . . . . . . . . 252
Heating . . . . . . . . . . . . . . .216, 218, 220 High Voltage Devices and
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 375
High-Beam On Light . . . . . . . . . . . . 154
High-Speed Operation . . . . . . . . . . 394
Hill and Mountain Roads . . . . . . . . 236
Hill Descent Control (HDC) . . . . . 277
Hill Descent Control Light . . . . . . . 151
Hill Start Assist (HSA) . . . . . . . . . . 275
Home Page . . . . . . . . . . . . . . . . . . . . . 184
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 337
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . 70
HVAC . . . . . . . . . . . . . . . . .216, 218, 220
Hydraulic Clutch . . . . . . . . . . . . . . . . 351
I
Idle System Fast . . . . . . . . . . . . . . . . . . . . . . . . . . 251
Ignition Positions . . . . . . . . . . . . . . . 248
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . . . 368
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 46
Indicator Vehicle Ahead . . . . . . . . . . . . . . . . 152
Infants and Young Children,
Restraints . . . . . . . . . . . . . . . . . . . . . . 94
Infotainment . . . . . . . . . . . . . . . . . . . . 181 Infotainment System . . . . . . . . . . . . 474
Instrument Cluster . . . . . . . . . . . . . . 137
Instrument Panel
Storage Area . . . . . . . . . . . . . . . . . 124
Interior Rearview Mirrors . . . . . . . . . 51
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jack Auxiliary . . . . . . . . . . . . . . . . . . . . . . 195
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . 421
K
Keyless Entry
Remote (RKE) System . . . . . . . . . 37
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
L
Labeling, Tire Sidewall . . . . . . . . . . 386
Lamps
Auxiliary RoofMounted Lamp . . . . . . . . . . . . . . 176
Cargo . . . . . . . . . . . . . . . . . . . . . . . . . 177
Daytime Running (DRL) . . . . . . 174
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 178
Exterior Controls . . . . . . . . . . . . . . 171
Exterior Lamps Off Reminder . . . . . . . . . . . . . . . . . . . 173

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
Index 495
Passenger Compartment AirFilter . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Passenger Sensing System . . . . . 86
Perchlorate Materials Requirements, California . . . . . . 336
Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . 160
Phone Apple CarPlay andAndroid Auto . . . . . . . . . . . . . . . . 209
Bluetooth . . . . . . . . . . . . . . . . 203, 205
Pickup Conversion to Chassis Cab . . . . . . . . . . . . . . . . . . 333
Port USB . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Power
Door Locks . . . . . . . . . . . . . . . . . . . . . 41
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Outlets . . . . . . . . . . . . . . . . . . . . . . . 132
Protection, Battery . . . . . . . . . . . . 180
Retained Accessory (RAP) . . . 251
Seat Adjustment . . . . . . . . . . . . . . . . 60
Steering Fluid . . . . . . . . . . . . . . . . . 359
Windows . . . . . . . . . . . . . . . . . . . . . . . 52
Power Assist Steps . . . . . . . . . . . . . . 43
Pregnancy, Using Seat Belts . . . . 74
Privacy
Vehicle Data Recording . . . . . . . 473 Program
Courtesy Transportation . . . . . . 467
Proposition 65 Warning,
California . . . . . . . . . . . .336, 362, 421, Back Cover
R
Radio Frequency Statement . . . . 471
Radio Reception . . . . . . . . . . . . . . . . 188
RadiosAM-FM Radio . . . . . . . . . . . . . . . . . 185
Satellite . . . . . . . . . . . . . . . . . . . . . . . 187
Reading Lamps . . . . . . . . . . . . . . . . . 178
Rear Axle . . . . . . . . . . . . . . . . . . . . . . . 365 Locking . . . . . . . . . . . . . . . . . . . . . . . 278
Rear Seats . . . . . . . . . . . . . . . . . . 66, 68
Rear Vision Camera (RVC) . . . . . 282
Rear Windows . . . . . . . . . . . . . . . . . . . 55
Rearview Mirrors . . . . . . . . . . . . . . . . 52 Automatic Dimming . . . . . . . . . . . . . 52
Reclining Seatbacks . . . . . . . . . . . . . 61
Recognition Voice . . . . . . . . . . . . . . . . . . . . . . . . . 197
Recommended Fluids and Lubricants . . . . . . . . . . . . . . . . . . . . . 451
Records Maintenance . . . . . . . . . . . . . . . . . . 455 Recreational Vehicle Towing . . . . 425
Reimbursement Program,
GM Mobility . . . . . . . . . . . . . . . . . . . 465
Remote Keyless Entry (RKE) System . . . . . . . . . . . . . . . . . . . . . . . . . 37
Remote Vehicle Start . . . . . . . . . . . . 39
Replacement Parts Airbags . . . . . . . . . . . . . . . . . . . . . . . . . 92
Maintenance . . . . . . . . . . . . . . . . . . 453
Replacing Airbag System . . . . . . . . 92
Replacing LATCH System Parts after a Crash . . . . . . . . . . . . 111
Replacing Seat Belt System Parts after a Crash . . . . . . . . . . . . . 76
Reporting Safety Defects Canadian Government . . . . . . . . 472
General Motors . . . . . . . . . . . . . . . 473
U.S. Government . . . . . . . . . . . . . 472
Restraints Where to Put . . . . . . . . . . . . . . . . . . . 98
Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . . . . 251
Reverse Tilt Mirrors . . . . . . . . . . . . . . 51
Roads Driving, Wet . . . . . . . . . . . . . . . . . . 235
Roadside Assistance Program . . . . . . . . . . . . . . . . . . . . . . . 465