2018 GMC Sierra Owner's Manual
Year:
2018
Make:
GMC
Model:
Sierra
Rating:
Table of Contents
Contents
2
Introduction
3
Canadian Vehicle Owners
3
Using this Manual
3
Danger, Warning, and Caution
4
Symbols
4
In Brief
6
Instrument Panel
7
Initial Drive Information
9
Remote Keyless Entry (RKE) System
9
Remote Vehicle Start
10
Door Locks
10
Windows
11
Seat Adjustment
12
Memory Features
14
Heated and Ventilated Seats
14
Head Restraint Adjustment
15
Seat Belts
15
Passenger Sensing System
15
Mirror Adjustment
16
Steering Wheel Adjustment
17
Throttle and Brake Pedal Adjustment
18
Interior Lighting
18
Exterior Lighting
19
Windshield Wiper/Washer
20
Climate Controls
21
Transmission
23
Four-Wheel Drive
24
Vehicle Features
25
Infotainment System
25
Radio(s)
25
Satellite Radio
26
Portable Audio Devices
26
Bluetooth
26
Steering Wheel Controls
27
Cruise Control
27
Driver Information Center (DIC)
28
Forward Collision Alert (FCA) System
28
Forward Automatic Braking (FAB)
28
Lane Departure Warning (LDW)
29
Lane Keep Assist (LKA)
29
Rear Vision Camera (RVC)
29
Parking Assist
29
Power Outlets
29
Universal Remote System
30
Sunroof
30
Performance and Maintenance
31
Traction Control/Electronic Stability Control
31
Tire Pressure Monitor
32
Fuel (Gasoline - Except L86 6.2L Engine)
32
Fuel (Gasoline - L86 6.2L Engine)
33
Fuel (Diesel)
33
E85 or FlexFuel
33
Engine Oil Life System
33
Driving for Better Fuel Economy
34
Roadside Assistance Program
34
Keys, Doors, and Windows
35
Keys and Locks
35
Keys
35
Remote Keyless Entry (RKE) System
38
Remote Keyless Entry (RKE) System Operation
38
Remote Vehicle Start
40
Door Locks
41
Power Door Locks
42
Automatic Door Locks
42
Lockout Protection
43
Safety Locks
43
Doors
44
Tailgate
44
Power Assist Steps
44
Vehicle Security
45
Vehicle Alarm System
45
Immobilizer
47
Immobilizer Operation
47
Exterior Mirrors
48
Convex Mirrors
48
Manual Mirrors
48
Trailer-Tow Mirrors
49
Power Mirrors
49
Folding Mirrors
50
Heated Mirrors
51
Automatic Dimming Mirror
51
Blind Spot Mirrors
51
Reverse Tilt Mirrors
52
Interior Mirrors
52
Interior Rearview Mirrors
52
Manual Rearview Mirror
53
Automatic Dimming Rearview Mirror
53
Windows
53
Manual Windows
53
Power Windows
53
Rear Windows
55
Sun Visors
56
Roof
56
Sunroof
56
Seats and Restraints
58
Head Restraints
59
Front Seats
60
Seat Adjustment
60
Center Seat
60
Power Seat Adjustment
61
Lumbar Adjustment
61
Reclining Seatbacks
62
Memory Seats
63
Heated and Ventilated Front Seats
66
Rear Seats
67
Rear Seats (Double Cab Full Bench)
67
Rear Seats (Split Bench)
69
Seat Belts
70
How to Wear Seat Belts Properly
71
Lap-Shoulder Belt
72
Seat Belt Use During Pregnancy
75
Lap Belt
76
Seat Belt Extender
76
Safety System Check
76
Seat Belt Care
77
Replacing Seat Belt System Parts after a Crash
77
Airbag System
78
Where Are the Airbags?
79
When Should an Airbag Inflate?
81
What Makes an Airbag Inflate?
83
How Does an Airbag Restrain?
83
What Will You See after an Airbag Inflates?
83
Airbag On-Off Switch
85
Passenger Sensing System
87
Servicing the Airbag-Equipped Vehicle
91
Adding Equipment to the Airbag-Equipped Vehicle
91
Airbag System Check
92
Replacing Airbag System Parts after a Crash
93
Child Restraints
93
Older Children
93
Infants and Young Children
95
Child Restraint Systems
97
Where to Put the Restraint
99
Lower Anchors and Tethers for Children (LATCH System)
100
Replacing LATCH System Parts After a Crash
112
Securing Child Restraints (With the Seat Belt in the Rear Seat)
112
Securing Child Restraints (With the Seat Belt in the Center Front Seat)
115
Securing Child Restraints (With the Seat Belt in the Front Passenger Seat)
116
Storage
125
Storage Compartments
125
Instrument Panel Storage
125
Glove Box
125
Cupholders
125
Sunglasses Storage
126
Center Console Storage
126
Floor Console Storage
127
Additional Storage Features
127
Cargo Tie-Downs
127
Instruments and Controls
129
Controls
130
Steering Wheel Adjustment
130
Steering Wheel Controls
130
Heated Steering Wheel
131
Horn
131
Windshield Wiper/Washer
131
Compass
132
Clock
133
Power Outlets
134
Wireless Charging
135
Warning Lights, Gauges, and Indicators
138
Instrument Cluster
139
Speedometer
143
Odometer
143
Trip Odometer
143
Tachometer
143
Fuel Gauge
143
Engine Oil Pressure Gauge
144
Engine Coolant Temperature Gauge
145
Transmission Temperature Gauge
146
Voltmeter Gauge
146
Seat Belt Reminders
147
Airbag Readiness Light
148
Airbag On-Off Light
148
Passenger Airbag Status Indicator
150
Charging System Light
150
Malfunction Indicator Lamp (Check Engine Light)
151
Brake System Warning Light
153
Antilock Brake System (ABS) Warning Light
153
Four-Wheel-Drive Light
154
Tow/Haul Mode Light
154
Hill Descent Control Light
154
Lane Departure Warning (LDW) Light (2500/3500)
154
Lane Keep Assist (LKA) Light (1500 Series)
155
Vehicle Ahead Indicator
155
Traction Off Light
155
StabiliTrak OFF Light
155
Traction Control System (TCS)/StabiliTrak Light
156
Engine Coolant Temperature Warning Light
156
Tire Pressure Light
157
Engine Oil Pressure Light (Denali Only)
157
Low Fuel Warning Light
157
Security Light
158
High-Beam On Light
158
Front Fog Lamp Light
158
Lamps On Reminder
158
Cruise Control Light
159
Door Ajar Light
159
Information Displays
159
Driver Information Center (DIC) (Base Level Cluster)
159
Driver Information Center (DIC) (Uplevel and Denali Cluster)
161
Vehicle Messages
165
Engine Power Messages
165
Vehicle Speed Messages
165
Vehicle Personalization
166
Universal Remote System
173
Universal Remote System Programming
173
Universal Remote System Operation
175
Lighting
177
Exterior Lighting
177
Exterior Lamp Controls
177
Exterior Lamps Off Reminder
179
Headlamp High/Low-Beam Changer
180
Flash-to-Pass
180
Daytime Running Lamps (DRL)
180
Automatic Headlamp System
180
Hazard Warning Flashers
181
Turn and Lane-Change Signals
182
Fog Lamps
182
Auxiliary Roof-Mounted Lamp
183
Interior Lighting
183
Instrument Panel Illumination Control
183
Cargo Lamp
184
Dome Lamps
184
Reading Lamps
184
Lighting Features
185
Entry Lighting
185
Exit Lighting
185
Battery Load Management
185
Battery Power Protection
186
Exterior Lighting Battery Saver
186
Infotainment System
187
Introduction
187
Infotainment
187
Theft-Deterrent Feature
188
Overview
189
Home Page
190
Software Updates
190
Radio
191
AM-FM Radio
191
Satellite Radio
193
Radio Reception
194
Fixed Mast Antenna
195
Multi-Band Antenna
195
Audio Players
196
Avoiding Untrusted Media Devices
196
CD Player
196
USB Port
198
Auxiliary Jack
204
Bluetooth Audio
205
Voice Recognition
206
Phone
212
Bluetooth (Overview)
212
Bluetooth (Infotainment Controls)
214
Apple CarPlay and Android Auto
218
Trademarks and License Agreements
219
Climate Controls
225
Climate Control Systems
225
Climate Control Systems (with Heater Only)
225
Climate Control Systems (with Air Conditioning)
227
Dual Automatic Climate Control System
229
Air Vents
232
Maintenance
233
Passenger Compartment Air Filter
233
Service
234
Driving and Operating
235
Driving Information
236
Distracted Driving
236
Defensive Driving
237
Drunk Driving
237
Control of a Vehicle
237
Braking
237
Steering
238
Off-Road Recovery
239
Loss of Control
239
Off-Road Driving
240
Driving on Wet Roads
245
Hill and Mountain Roads
246
Winter Driving
246
If the Vehicle Is Stuck
248
Vehicle Load Limits
249
Truck-Camper Loading Information
254
Starting and Operating
256
New Vehicle Break-In
256
Adjustable Throttle and Brake Pedal
257
Ignition Positions
257
Starting the Engine
259
Fast Idle System
260
Retained Accessory Power (RAP)
261
Engine Coolant Heater
261
Shifting Into Park
263
Shifting out of Park
264
Parking over Things That Burn
265
Active Fuel Management
265
Engine Exhaust
265
Running the Vehicle While Parked
266
Automatic Transmission
266
Manual Mode
269
Tow/Haul Mode
272
Drive Systems
273
Four-Wheel Drive
273
Brakes
281
Antilock Brake System (ABS)
281
Parking Brake
282
Brake Assist
282
Hill Start Assist (HSA)
283
Ride Control Systems
283
Traction Control/Electronic Stability Control
283
Hill Descent Control (HDC)
285
Locking Rear Axle
286
Cruise Control
286
Driver Assistance Systems
289
Assistance Systems for Parking or Backing
290
Assistance Systems for Driving
293
Forward Collision Alert (FCA) System
293
Forward Automatic Braking (FAB)
295
Lane Departure Warning (LDW) (2500/3500 Series)
296
Lane Keep Assist (LKA) (1500 Series)
298
Fuel
300
California Fuel Requirements
301
Fuels in Foreign Countries
301
Fuel Additives
301
E85 or FlexFuel
301
Filling the Tank
302
Filling a Portable Fuel Container
304
Trailer Towing
304
General Towing Information
304
Driving Characteristics and Towing Tips
304
Towing Equipment
326
Trailer Sway Control (TSC)
335
Conversions and Add-Ons
337
Add-On Electrical Equipment
337
Adding a Snow Plow or Similar Equipment
338
Pickup Conversion to Chassis Cab
341
Vehicle Care
342
General Information
343
California Proposition 65 Warning
344
California Perchlorate Materials Requirements
344
Accessories and Modifications
344
Vehicle Checks
345
Doing Your Own Service Work
345
Hood
345
Engine Compartment Overview
346
Engine Oil
351
Engine Oil Life System
354
Automatic Transmission Fluid (6-Speed Transmission)
355
Automatic Transmission Fluid (8-Speed Transmission)
358
Engine Air Cleaner/Filter
359
Cooling System
360
Engine Overheating
364
Overheated Engine Protection Operating Mode
365
Engine Fan
366
Power Steering Fluid (1500 Series)
366
Power Steering Fluid (2500/3500 Series)
366
Washer Fluid
367
Brakes
368
Brake Fluid
369
Battery - North America
370
Four-Wheel Drive
371
Front Axle
371
Rear Axle
372
Noise Control System
374
Starter Switch Check
375
Automatic Transmission Shift Lock Control Function Check
375
Ignition Transmission Lock Check
375
Park Brake and P (Park) Mechanism Check
376
Wiper Blade Replacement
376
Windshield Replacement
377
Gas Strut(s)
377
Headlamp Aiming
378
Bulb Replacement
379
Halogen Bulbs
379
High Intensity Discharge (HID) Lighting
379
LED Lighting
379
Taillamps, Turn Signal, Stoplamps, and Back-Up Lamps
379
Center High-Mounted Stoplamp (CHMSL) and Cargo Lamp
381
Electrical System
381
High Voltage Devices and Wiring
381
Electrical System Overload
381
Fuses and Circuit Breakers
382
Engine Compartment Fuse Block
382
Instrument Panel Fuse Block (Right)
386
Instrument Panel Fuse Block (Left)
387
Wheels and Tires
390
Tires
390
All-Season Tires
390
Winter Tires
391
Low-Profile Tires
391
All-Terrain Tires
392
Tire Sidewall Labeling
392
Tire Designations
394
Tire Terminology and Definitions
396
Tire Pressure
398
Tire Pressure for High-Speed Operation
400
Tire Pressure Monitor System
400
Tire Pressure Monitor Operation
401
Tire Inspection
405
Tire Rotation
406
When It Is Time for New Tires
408
Buying New Tires
409
Different Size Tires and Wheels
410
Uniform Tire Quality Grading
411
Wheel Alignment and Tire Balance
412
Wheel Replacement
413
Tire Chains
414
If a Tire Goes Flat
414
Tire Changing
416
Full-Size Spare Tire
426
Jump Starting
427
Jump Starting - North America
427
Towing the Vehicle
431
Recreational Vehicle Towing
431
Appearance Care
436
Exterior Care
436
Interior Care
442
Floor Mats
445
Service and Maintenance
447
General Information
447
Maintenance Schedule
449
Special Application Services
454
Additional Maintenance and Care
454
Recommended Fluids, Lubricants, and Parts
457
Recommended Fluids and Lubricants
457
Maintenance Replacement Parts
459
Maintenance Records
460
Technical Data
461
Vehicle Identification
461
Vehicle Identification Number (VIN)
461
Service Parts Identification Label
461
Vehicle Data
462
Capacities and Specifications
462
Engine Drive Belt Routing
465
Customer Information
466
Customer Information
466
Customer Satisfaction Procedure
466
Customer Assistance Offices
468
Customer Assistance for Text Telephone (TTY) Users
469
Online Owner Center
469
GM Mobility Reimbursement Program
470
Roadside Assistance Program
470
Scheduling Service Appointments
472
Courtesy Transportation Program
472
Collision Damage Repair
473
Service Publications Ordering Information
475
Radio Frequency Statement
476
Reporting Safety Defects
477
Reporting Safety Defects to the United States Government
477
Reporting Safety Defects to the Canadian Government
477
Reporting Safety Defects to General Motors
478
Vehicle Data Recording and Privacy
478
Event Data Recorders
478
OnStar
479
Infotainment System
479
OnStar
480
OnStar Overview
480
OnStar Services
481
Emergency
481
Security
482
Navigation
482
Connections
483
Diagnostics
485
OnStar Additional Information
486
Index
492
Index_A
492
Index_B
493
Index_C
493
Index_D
495
Index_E
495
Index_F
496
Index_G
496
Index_H
497
Index_I
497
Index_J
497
Index_K
497
Index_L
497
Index_M
498
Index_N
499
Index_O
499
Index_P
499
Index_R
500
Index_S
501
Index_T
502
Index_U
503
Index_V
503
Index_W
503
2018 GMC Sierra Overview
Introduction
The 2018 GMC Sierra is a rugged yet refined pickup truck that caters to both work and play, combining capability with advanced technology and comfort. Part of the Sierra lineup, this truck stands out with its bold exterior design, robust performance options, and a suite of smart features. With its distinctive grille and strong lines, the Sierra is not just an everyday truck; it makes a statement on and off-road.
Powertrains
The 2018 GMC Sierra offers a range of powerful engines to suit various needs. The base Sierra 1500 comes equipped with a 4.3-liter V6 engine producing an impressive 285 horsepower and 305 lb-ft of torque. For those seeking more power, a 5.3-liter V8 engine delivering 355 horsepower is available. The ultimate offering is the 6.2-liter V8, which flexes its strength with a remarkable 420 horsepower and 460 lb-ft of torque, ensuring no load is too heavy. The available eight-speed automatic transmission enhances fuel efficiency without sacrificing performance.
Trims
The 2018 Sierra is available in multiple trims, including the base Sierra, SLE, SLT, and the Denali, which is the flagship model. Each trim level caters to different preferences, with the SLE and SLT adding more features and luxurious options, while the Denali is packed with premium materials, additional technology, and superior ride comfort, making it perfect for drivers seeking elegance alongside capability.
Features
Inside, the Sierra offers a harmonious blend of practicality and innovation. It boasts an intuitive infotainment system with Apple CarPlay and Android Auto compatibility, as well as available features like a rearview camera, blind-spot monitoring, and adaptive cruise control. High-quality materials create a comfortable cabin, and ample storage solutions throughout the interior enhance convenience for everyday use.
Owner's Manual
The 2018 GMC Sierra comes with a comprehensive owner's manual that provides essential information for optimal ownership experience. This resource details maintenance schedules, troubleshooting tips, and guidance on using advanced features and technologies available in this advanced truck. It is designed to help owners maximize the performance and longevity of the vehicle, ensuring that drivers get the most out of every mile.
User manual download
The GMC Sierra owner manual for the 2018 model year is to be found in PDF downloadable format on this page. The owner manual for the model year 2018 is free and in English, but the repair manuals are usually not easy to get and may cost more.
Posted by, John Mana
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