Name: GMC Sierra
Brand: GMC
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21_GMC_Sierra_SierraDenali_2500HD3500HD_COV_en_US_84744494B_2020NOV25.pdf 1 11/5/2020 2:26:41 PM

Table of Contents2
Introduction3
Keys, Doors, and Windows8
Keys and Locks8
Keys (Key Access)8
Keys (Keyless Access)10
Remote Keyless Entry (RKE) System11
Remote Keyless Entry (RKE) System Operation (Key Access)12
Remote Keyless Entry (RKE) System Operation (Keyless Access)14
Remote Vehicle Start21
Door Locks22
Power Door Locks23
Delayed Locking23
Automatic Door Locks23
Lockout Protection23
Safety Locks24
Doors24
Tailgate24
Power Assist Steps31
Vehicle Security32
Vehicle Alarm System32
Steering Column Lock33
Immobilizer33
Immobilizer Operation33
Exterior Mirrors34
Convex Mirrors34
Manual Mirrors34
Trailer-Tow Mirrors35
Power Mirrors36
Folding Mirrors37
Heated Mirrors37
Automatic Dimming Mirror37
Blind Spot Mirrors37
Reverse Tilt Mirrors38
Interior Mirrors38
Interior Rearview Mirrors38
Manual Rearview Mirror39
Automatic Dimming Rearview Mirror39
Rear Camera Mirror39
Truck Bed Camera Rearview Mirror41
Windows42
Manual Windows42
Power Windows42
Rear Windows44
Sun Visors44
Roof Sunroof45
Seats and Restraints47
Head Restraints47
Front Seats48
Seat Adjustment48
Center Seat49
Power Seat Adjustment49
Lumbar Adjustment50
Reclining Seatbacks50
Memory Seats51
Heated and Ventilated Front Seats54
Rear Seats55
Heated Rear Seats56
Seat Belts56
How to Wear Seat Belts Properly57
Lap-Shoulder Belt59
Seat Belt Use During Pregnancy61
Seat Belt Extender61
Safety System Check62
Seat Belt Care62
Replacing Seat Belt System Parts after a62
Crash62
Airbag System63
Where Are the Airbags64
When Should an Airbag Inflate65
What Makes an Airbag Inflate66
How Does an Airbag Restrain66
What will You See after an Airbag67
Inflates67
Passenger Sensing System68
Servicing the Airbag-Equipped71
Vehicle71
Adding Equipment to the Airbag-Equipped Vehicle71
Airbag System Check72
Replacing Airbag System Parts after a73
Crash73
Child Restraints73
Older Children73
Infants and Young Children74
Child Restraint Systems76
Where to Put the Restraint78
Lower Anchors and Tethers for Children79
(LATCH System)79
Replacing LATCH System Parts after a90
Crash90
Securing Child Restraints (with the Seat Belt in the Rear Seat)90
Securing Child Restraints (with the Seat Belt in the Center Front Seat)94
Securing Child Restraints (with the Seat Belt in the Front Passenger Seat)94
Storage97
Storage Compartments97
Glove Box97
Cupholders97
Underseat Storage98
Rear Storage98
Center Console Storage98
Floor Console Storage99
Additional Storage Features99
Cargo Tie-Downs99
Instruments and Controls101
Steering Wheel Adjustment102
Steering Wheel Controls102
Heated Steering Wheel102
Horn103
Windshield Wiper/Washer103
Compass104
Clock104
Power Outlets104
Wireless Charging105
Warning Lights, Gauges, and Indicators108
Instrument Cluster108
Speedometer112
Odometer112
Trip Odometer112
Tachometer112
Fuel Gauge112
Engine Oil Pressure Gauge113
Engine Coolant Temperature Gauge114
Voltmeter Gauge115
Seat Belt Reminders115
Airbag Readiness Light116
Passenger Airbag Status Indicator117
Charging System Light117
Malfunction Indicator Lamp118
Engine Light)118
Brake System Warning Light119
Electric Parking Brake Light120
Service Electric Parking Brake Light120
Antilock Brake System (ABS) Warning120
Light120
Four-Wheel-Drive Light120
Tow/Haul Mode Light121
Hill Descent Control Light121
Lane Departure Warning (LDW)121
Light121
Vehicle Ahead Indicator121
Traction off Light121
Traction Control System (Tcs)/Electronic Stability Control Light122
Electronic Stability Control (ESC) off122
Light122
Light123
Driver Mode Control Light123
Tire Pressure Light123
Engine Oil Pressure Light124
Cluster)124
Low Fuel Warning Light124
Security Light124
High-Beam on Light124
Front Fog Lamp Light125
Lamps on Reminder125
Cruise Control Light125
Door Ajar Light125
Information Displays125
Driver Information Center (DIC)125
Level)125
Driver Information Center (DIC) (Midlevel and Uplevel)127
Head-Up Display (HUD)129
Vehicle Messages130
Vehicle Messages132
Engine Power Messages132
Vehicle Speed Messages132
Vehicle Personalization133
Universal Remote System Universal Remote System137
Universal Remote System137
Programming137
Universal Remote System Operation139
Exterior Lamp Controls141
Lighting142
Exterior Lamps off Reminder143
Headlamp High/Low-Beam Changer143
Flash-To-Pass143
Daytime Running Lamps (DRL)143
Automatic Headlamp System143
Hazard Warning Flashers144
Turn and Lane-Change Signals145
Fog Lamps145
Task Lighting146
Auxiliary Roof-Mounted Lamp146
Exterior Cargo Lamps146
Interior Lighting147
Dome Lamps147
Control147
Reading Lamps148
Lighting Features148
Entry Lighting148
Exit Lighting148
Battery Load Management148
Battery Power Protection149
Exterior Lighting Battery Saver149
Infotainment System150
Introduction150
Overview151
Steering Wheel Controls153
Using the System154
Software Updates157
AM-FM Radio157
HD Radio Technology158
Radio Data System (RDS)159
Satellite Radio159
Radio Reception160
Fixed Mast Antenna160
Multi-Band Antenna160
Audio Players160
Avoiding Untrusted Media Devices160
USB Port160
Auxiliary Jack163
Bluetooth Audio164
Onstar System164
Using the Navigation System165
Maps168
Navigation Symbols169
Destination169
Onstar System175
Global Positioning System (GPS)176
Vehicle Positioning176
Problems with Route Guidance176
If the System Needs Service177
Map Data Updates177
Database Coverage Explanations177
Voice Recognition177
Bluetooth (Overview)183
Phone183
Apple Carplay and Android Auto187
Settings188
Teen Driver195
Trademarks and License Agreements198
Trademarks and License198
Climate Controls206
Driving and Operating213
Driving Information Driving for Better Fuel Economy214
Distracted Driving214
Defensive Driving215
Impaired Driving215
Control of a Vehicle215
Braking215
Steering216
Off-Road Recovery217
Loss of Control217
Off-Road Driving218
Driving on Wet Roads221
Hill and Mountain Roads222
Winter Driving222
If the Vehicle Is Stuck223
Vehicle Load Limits225
Truck-Camper Loading Information229
Starting and Operating231
New Vehicle Break-In231
Ignition Positions (Key Access)231
Ignition Positions (Keyless Access)233
Starting the Engine235
Engine Heater236
Retained Accessory Power (RAP)237
Shifting into Park237
Shifting out of Park238
Parking over Things that Burn238
Extended Parking239
Engine Exhaust239
Running the Vehicle While Parked239
Automatic Transmission240
Manual Mode242
Tow/Haul Mode243
Drive Systems243
Four-Wheel Drive243
Antilock Brake System (ABS)247
Electric Parking Brake248
Brake Assist249
Hill Start Assist (HSA)249
Ride Control Systems249
Traction Control/Electronic Stability249
Control249
Hill Descent Control (HDC)251
Driver Mode Control252
Limited-Slip Differential253
Locking Rear Axle253
Cruise Control253
Driver Assistance Systems255
Assistance Systems for Parking or256
Backing256
Assistance Systems for Driving265
Forward Collision Alert (FCA)265
System265
Automatic Emergency266
Braking (AEB)266
Side Blind Zone Alert (SBZA)268
Lane Change Alert (LCA)268
Lane Departure Warning (LDW)270
Top Tier Fuel270
Recommended Fuel271
Prohibited Fuels271
Fuels in Foreign Countries271
Fuel Additives271
E85 or Flexfuel272
Filling the Tank (Pickup Model)272
Filling the Tank (Chassis Cab and Box Delete Models)274
Filling a Portable Fuel Container275
Vehicle Care308
General Information309
California Proposition 65 Warning309
California Perchlorate Materials Requirements310
Accessories and Modifications310
Vehicle Checks310
Doing Your Own Service Work310
Hood311
Engine Compartment Overview312
Engine Oil313
Engine Oil Life System315
Automatic Transmission Fluid316
Engine Air Filter Life System316
Engine Air Cleaner/Filter317
Cooling System318
Engine Overheating320
Overheated Engine Protection Operating Mode322
Engine Fan322
Power Steering Fluid322
Washer Fluid323
Brakes324
Brake Pad Life System324
Brake Fluid325
Battery - North America326
Four-Wheel Drive328
Front Axle328
Rear Axle328
Noise Control System328
Starter Switch Check329
Automatic Transmission Shift Lock Control Function Check330
Ignition Transmission Lock Check330
Park Brake and P (Park) Mechanism330
Check330
Wiper Blade Replacement330
Glass Replacement331
Windshield Replacement331
Gas Strut(S)331
Headlamp Aiming332
Front Headlamp Aiming332
Bulb Replacement332
Halogen Bulbs333
LED Lighting333
Headlamps, Front Turn Signal, Sidemarker, and Parking Lamps333
Back-Up Lamps333
Center High-Mounted Stoplamp (CHMSL) and Cargo Lamp334
License Plate Lamp335
Electrical System Electrical System Overload335
Fuses and Circuit Breakers336
Engine Compartment Fuse Block336
Instrument Panel Fuse Block (Left)339
Instrument Panel Fuse Block (Right)341
Wheels and Tires343
Tires343
All-Season Tires344
Winter Tires344
All-Terrain Tires344
Tire Sidewall Labeling345
Tire Designations346
Tire Terminology and Definitions346
Tire Pressure348
Tire Pressure Monitor System349
Tire Pressure Monitor Operation350
Tire Inspection355
Tire Rotation355
When It Is Time for New Tires357
Buying New Tires358
Different Size Tires and Wheels359
Uniform Tire Quality Grading359
Wheel Alignment and Tire Balance361
Wheel Replacement361
Tire Chains361
If a Tire Goes Flat362
Tire Changing363
Full-Size Spare Tire373
Jump Starting Jump Starting - North America374
Towing the Vehicle376
Recreational Vehicle Towing377
Appearance Care380
Exterior Care380
Interior Care385
Floor Mats388
Service and Maintenance390
Technical Data404
Customer Information408
Reporting Safety Defects408
Customer Satisfaction Procedure408
Customer Information409
Customer Assistance Offices410
Customer Assistance for Text410
Online Owner Center410
GM Mobility Reimbursement411
Program411
Roadside Assistance Program411
Scheduling Service Appointments413
Courtesy Transportation Program413
Collision Damage Repair414
Publication Ordering Information416
Radio Frequency Statement416
States Government416
Reporting Safety Defects to the Canadian Government416
Vehicle Data Recording and Privacy Vehicle Data Recording and Privacy417
Motors417
Cybersecurity418
Event Data Recorders418
Onstar419
Infotainment System419
Connected Services425
Index428

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Brand	GMC
Model	Sierra
Category	Automobile
Language	English