2019 CHEVROLET SUBURBAN ECU

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12460269) - 2019 - CRC - 9/11/18
444 Connected Services
2. Say“Repeat.” System
responds with the last direction
given, then responds with
“OnStar ready,” then a tone.
Get My Destination
1. Press
=. System responds:
“OnStar ready,” then a tone.
2. Say “Get my destination.”
System responds with the
address and distance to the
destination, then responds with
“OnStar ready,” then a tone.
Send Destination to Vehicle
Directions can be sent to the
vehicle’s navigation screen,
if equipped.
Press
Q, then ask the Advisor to
download directions to the vehicle’s
navigation system, if equipped. After
the call ends, the navigation screen
will provide prompts to begin driving
directions. Routes that are sent to
the navigation screen can only be
canceled through the navigation
system. See www.onstar.com (U.S.) or
www.onstar.ca (Canada).
Connections
The following services help with
staying connected.
For coverage maps, see
www.onstar.com (U.S.) or
www.onstar.ca (Canada).
Ensuring Security
.
Change the default passwords
for the Wi-Fi hotspot and
myChevrolet mobile application.
Make these passwords different
from each other and use a
combination of letters, numbers,
and symbols to increase the
security.
. Change the default name of the
SSID (Service Set Identifier).
This is your network’s name that
is visible to other wireless
devices. Choose a unique name
and avoid family names or
vehicle descriptions. Wi-Fi Hotspot (If Equipped)
The vehicle may have a built-in
Wi-Fi hotspot that provides access
to the Internet and web content at
4G LTE speed. Up to seven mobile
devices can be connected. A data
plan is required. Use the in-vehicle
controls only when it is safe to
do so.
1. To retrieve Wi-Fi hotspot information, press
=to open
the OnStar app on the
infotainment display, then
select Wi-Fi Hotspot. On some
vehicles, touch Wi-Fi or Wi-Fi
Settings on the screen.
2. The Wi-Fi settings will display the Wi-Fi hotspot name (SSID),
password, and on some
vehicles, the connection type
(no Internet connection, 3G,
4G, 4G LTE), and signal quality
(poor, good, excellent).
3. To change the SSID or password, press
Qor call
1-888-4ONSTAR to connect
with an Advisor. On some

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-12460269) - 2019 - CRC - 9/11/18
Index 447
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 301
Accessory Power . . . . . . . . . . . . . . . 227
Active Fuel Management . . . . . . . 229
Adaptive Cruise Control . . . . . . . . 252
Add-On Electrical Equipment . . . 298
Additional Information OnStar . . . . . . . . . . . . . . . . . . . . . . . 437
Additional Maintenance
and Care . . . . . . . . . . . . . . . . . . . . . . 410
Adjustable Throttle and Brake Pedal . . . . . . . . . . . . . . . . . . . 220
Adjustments
Lumbar, Front Seats . . . . . . . . . . . . 68
Air Cleaner/Filter, Engine . . . . . . . 316
Air Conditioning . . . . . . . . . . . 194, 198
Air Filter, Passenger Compartment . . . . . . . . . . . . . . . . . 200
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 199
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . 106
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . . . 99
Passenger Sensing System . . 100
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 98 Airbag System (cont'd)
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . . 99
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 97
Where Are the Airbags? . . . . . . . . 96
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . 105
Passenger Status Indicator . . . 154
Readiness Light . . . . . . . . . . . . . . 153
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . 105
System Check . . . . . . . . . . . . . . . . . . 94
Alarm Vehicle Security . . . . . . . . . . . . . . . . 53
Alert Lane Change . . . . . . . . . . . . . . . . . 269
Side Blind Zone (SBZA) . . . . . . 269
All-Season Tires . . . . . . . . . . . . . . . . 349
All-Terrain Tires . . . . . . . . . . . . . . . . . 350
Antilock Brake System (ABS) . . . 244 Warning Light . . . . . . . . . . . . . . . . . 158
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . 391
Interior . . . . . . . . . . . . . . . . . . . . . . . . 396
Armrest Storage . . . . . . . . . . . . . . . . 129

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-12460269) - 2019 - CRC - 9/11/18
Index 449
ChargingWireless . . . . . . . . . . . . . . . . . . . . . . 141
Charging System Light . . . . . . . . . 155
Check Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 155
Ignition Transmission Lock . . . 329
Child Restraints Infants and Young Children . . . 108
Lower Anchors and Tethersfor Children . . . . . . . . . . . . . . . . . .114
Older Children . . . . . . . . . . . . . . . . 107
Securing . . . . . . . . . . . . 122, 124, 125
Systems . . . . . . . . . . . . . . . . . . . . . . . 111
Child-View Mirror . . . . . . . . . . . . . . . . 59
Circuit Breakers . . . . . . . . . . . . . . . . 337
Cleaning Exterior Care . . . . . . . . . . . . . . . . . 391
Interior Care . . . . . . . . . . . . . . . . . . 396
Climate Control Systems Dual Automatic . . . . . . . . . . . . . . . 194
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Cluster, Instrument . . . . . . . . . . . . . 145
Collision Damage Repair . . . . . . . 428
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . 128
Compass . . . . . . . . . . . . . . . . . . . . . . . 138 Connected Services
Connections . . . . . . . . . . . . . . . . . . 444
Diagnostics . . . . . . . . . . . . . . . . . . . 446
Navigation . . . . . . . . . . . . . . . . . . . . 443
Connections Connected Services . . . . . . . . . . 444
Control
Hill Descent . . . . . . . . . . . . . . . . . . 248
Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . 246
Control Light
Hill Descent . . . . . . . . . . . . . . . . . . 158
Control of a Vehicle . . . . . . . . . . . . . 204
Convenience Net . . . . . . . . . . . . . . . 131
Convex Mirrors . . . . . . . . . . . . . . . . . . 56
Coolant Engine Temperature Gauge . . 151
Cooling . . . . . . . . . . . . . . . . . . . . 194, 198
Cooling System . . . . . . . . . . . . . . . . . 317
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . . 427
Cruise Control . . . . . . . . . . . . . . . . . . 250 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Cruise Control, Adaptive . . . . . . . . 252
Cupholders . . . . . . . . . . . . . . . . . . . . . 128
Customer Assistance . . . . . . . . . . . 424 Offices . . . . . . . . . . . . . . . . . . . . . . . . 423 Customer Assistance (cont'd)
Text Telephone (TTY)
Users . . . . . . . . . . . . . . . . . . . . . . . 424
Customer Information
Publications OrderingInformation . . . . . . . . . . . . . . . . . . 431
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . 421
D
Damage Repair, Collision . . . . . . . 428
Danger, Warning, and Caution . . . . 3
Data CollectionInfotainment System . . . . . . . . . . 434
OnStar . . . . . . . . . . . . . . . . . . . . . . . 434
Data Recorders, Event . . . . . . . . . 433
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 186
Defensive Driving . . . . . . . . . . . . . . . 204
Delayed Locking . . . . . . . . . . . . . . . . . 45
Diagnostics
Connected Services . . . . . . . . . . 446
Distracted Driving . . . . . . . . . . . . . . . 203
Dome Lamps . . . . . . . . . . . . . . . . . . . 189
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . 162
Delayed Locking . . . . . . . . . . . . . . . . 45
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-12460269) - 2019 - CRC - 9/11/18
Index 453
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . . . 91
Lap-Shoulder Belt . . . . . . . . . . . . . . . 86
LATCH SystemReplacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . 122
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . 114
LED Lighting . . . . . . . . . . . . . . . . . . . . 333
Level Control Automatic . . . . . . . . . . . . . . . . . . . . . 249
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Lighting
Entry . . . . . . . . . . . . . . . . . . . . . . . . . 190
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Illumination Control . . . . . . . . . . . 189
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 333
Lights Airbag Readiness . . . . . . . . . . . . . 153
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . 158
Brake System Warning . . . . . . . 157
Charging System . . . . . . . . . . . . . 155
Check Engine (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . 155
Cruise Control . . . . . . . . . . . . . . . . 162
Door Ajar . . . . . . . . . . . . . . . . . . . . . 162
Flash-to-Pass . . . . . . . . . . . . . . . . . 186
Front Fog Lamp . . . . . . . . . . . . . . 162 Lights (cont'd)
High-Beam On . . . . . . . . . . . . . . . . 161
High/Low Beam Changer . . . . . 185
Hill Descent Control . . . . . . . . . . 158
Lane Keep Assist . . . . . . . . . . . . . 159
Low Fuel Warning . . . . . . . . . . . . 161
Seat Belt Reminders . . . . . . . . . . 153
Security . . . . . . . . . . . . . . . . . . . . . . 161
StabiliTrak OFF . . . . . . . . . . . . . . . 159
Tire Pressure . . . . . . . . . . . . . . . . . 160
Tow/Haul Mode . . . . . . . . . . . . . . . 158
Traction Control System
(TCS)/StabiliTrak . . . . . . . . . . . . 160
Traction Off . . . . . . . . . . . . . . . . . . . 159
Locking Rear Axle . . . . . . . . . . . . . . 249
Locks Automatic Door . . . . . . . . . . . . . . . . . 46
Delayed Locking . . . . . . . . . . . . . . . . 45
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Lockout Protection . . . . . . . . . . . . . . 46
Power Door . . . . . . . . . . . . . . . . . . . . . 45
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Loss of Control . . . . . . . . . . . . . . . . . 206
Low Fuel Warning Light . . . . . . . . . 161
Low-Profile Tires . . . . . . . . . . . . . . . . 350
Lower Anchors and Tethers
for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . 114 Lumbar Adjustment . . . . . . . . . . . . . . 68
Front Seats . . . . . . . . . . . . . . . . . . . . . 68
M
Magnetic Ride Control . . . . . . . . . . 249
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . 416
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . 410
Maintenance Schedule . . . . . . . . . 403 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 413
Transfer Case . . . . . . . . . . . . . . . . 239
Malfunction Indicator Lamp . . . . . 155
Manual Mode . . . . . . . . . . . . . . 234, 236
Memory Features . . . . . . . . . . . . . . . . 12
Memory Seats . . . . . . . . . . . . . . . . . . . 70
Messages Engine Power . . . . . . . . . . . . . . . . 171
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 171
Vehicle Speed . . . . . . . . . . . . . . . . 171
Mirror Child-View . . . . . . . . . . . . . . . . . . . . . . 59
Mirrors Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . . . 59
Blind Spot . . . . . . . . . . . . . . . . . . . . . . 58
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 56

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-12460269) - 2019 - CRC - 9/11/18
454 Index
Mirrors (cont'd)Folding . . . . . . . . . . . . . . . . . . . . . . . . . 57
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 58
Manual Rearview . . . . . . . . . . . . . . . 59
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Tilt in Reverse . . . . . . . . . . . . . . . . . . 59
Mirrors, Interior Rearview . . . . . . . . 59
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 357
N
Navigation
Connected Services . . . . . . . . . . 443
Net, Convenience . . . . . . . . . . . . . . 131
New Vehicle Break-In . . . . . . . . . . . 219
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . 149
Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Off-Road . . . . . . . . . . . . . . . . . . . . . . . 206
Driving . . . . . . . . . . . . . . . . . . . . . . . . 206
Recovery . . . . . . . . . . . . . . . . . . . . . 205
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 309
Engine Oil Life System . . . . . . . .311
Engine Oil Pressure Gauge . . . 150
Older Children, Restraints . . . . . . 107
Online Owner Center . . . . . . . . . . . 424
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 434 OnStar Additional
Information . . . . . . . . . . . . . . . . . . . . 437
OnStar Emergency . . . . . . . . . . . . . 436
OnStar Overview . . . . . . . . . . . . . . . 435
OnStar Security . . . . . . . . . . . . . . . . 437
Operation Fog Lamps . . . . . . . . . . . . . . . . . . . 188
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . 139
Overheating, Engine . . . . . . . . . . . . 321
P
Park Shifting Into . . . . . . . . . . . . . . . . . . . 228
Shifting Out of . . . . . . . . . . . . . . . . 229
Park Assist . . . . . . . . . . . . . . . . . . . . . 261
Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . 245
Brake and P (Park)Mechanism Check . . . . . . . . . . 329
Extended . . . . . . . . . . . . . . . . . . . . . 230
Over Things That Burn . . . . . . . 229
Parking or Backing Assistance Systems . . . . . . . . . . 261
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . . 154
Passenger Compartment Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 200 Passenger Sensing System . . . . 100
Perchlorate Materials
Requirements, California . . . . . . 301
Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . 172
Power Door Locks . . . . . . . . . . . . . . . . . . . . . 45
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Outlets . . . . . . . . . . . . . . . . . . . . . . . 139
Protection, Battery . . . . . . . . . . . . 191
Retained Accessory (RAP) . . . 227
Seat Adjustment . . . . . . . . . . . . . . . . 67
Steering Fluid . . . . . . . . . . . . . . . . . 323
Windows . . . . . . . . . . . . . . . . . . . . . . . 60
Power Assist Steps . . . . . . . . . . . . . . 52
Pregnancy, Using Seat Belts . . . . 91
Privacy Vehicle Data Recording . . . . . . . 433
Program Courtesy Transportation . . . . . . 427
Prohibited Fuels . . . . . . . . . . . . . . . . 274
Proposition
65 Warning,
California . . . . . . . . . . . .301, 326, 381, Back Cover
Publication Ordering Information . . . . . . . . . . . . . . . . . . . . 431

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-12460269) - 2019 - CRC - 9/11/18
456 Index
Seats (cont'd)Memory . . . . . . . . . . . . . . . . . . . . . . . . . 70
Power Adjustment, Front . . . . . . . 67
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Reclining Seatbacks . . . . . . . . . . . . 68
Second Row . . . . . . . . . . . . . . . . . . . . 75
Third Row Seat . . . . . . . . . . . . . . . . . 79
Second Row Seats . . . . . . . . . . . . . . 75
Securing Child Restraints . . . . . . . . . . .122, 124, 125
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . 161
OnStar . . . . . . . . . . . . . . . . . . . . . . . 437
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 53
Vehicle Alarm . . . . . . . . . . . . . . . . . . . 53
Service . . . . . . . . . . . . . . . . . . . . . . . . . 201 Accessories andModifications . . . . . . . . . . . . . . . . 301
Doing Your Own Work . . . . . . . . 302
Maintenance Records . . . . . . . . 416
Maintenance, General Information . . . . . . . . . . . . . . . . . . 401
Parts Identification Label . . . . . 417
Scheduling Appointments . . . . . 427
Services Special Application . . . . . . . . . . . 409
Servicing the Airbag . . . . . . . . . . . . 105 Shift Lock Control Function
Check, Automatic
Transmission . . . . . . . . . . . . . . . . . . 329
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 228
Out of Park . . . . . . . . . . . . . . . . . . . 229
Side Blind Zone Alert (SBZA) . . . 269
Signals, Turn and
Lane-Change . . . . . . . . . . . . . . . . . 187
Special Application Services . . . . 409
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . . 418
Speedometer . . . . . . . . . . . . . . . . . . . 149
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . . . 159
Start Assist, Hill . . . . . . . . . . . . . . . . . 246
Start Vehicle, Remote . . . . . . . . . . . 43
Starter Switch Check . . . . . . . . . . . 328
Starting the Engine . . . . . . . . . . . . . 224
Steering . . . . . . . . . . . . . . . . . . . . . . . . 205 Fluid, Power . . . . . . . . . . . . . . . . . . 323
Heated Wheel . . . . . . . . . . . . . . . . 135
Wheel Adjustment . . . . . . . . . . . . 134
Wheel Controls . . . . . . . . . . . . . . . 135
Steps
Power Assist . . . . . . . . . . . . . . . . . . . 52
Stoplamps and Back-up Lamps Bulb Replacement . . . . . . . . . . . . 335 Storage
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Storage Areas Armrest . . . . . . . . . . . . . . . . . . . . . . . 129
Center Console . . . . . . . . . . . . . . . 130
Convenience Net . . . . . . . . . . . . . 131
Floor Console . . . . . . . . . . . . . . . . 131
Glove Box . . . . . . . . . . . . . . . . . . . . 128
Instrument Panel . . . . . . . . . . . . . 128
Roof Rack System . . . . . . . . . . . . 131
Sunglasses . . . . . . . . . . . . . . . . . . . 129
Storage Compartments . . . . . . . . . 128
Struts Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 214
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 62
Sunglass Storage . . . . . . . . . . . . . . . 129
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Forward Collision
Alert (FCA) . . . . . . . . . . . . . . . . . . 265
Infotainment . . . . . . . . . . . . . 193, 434
Roof Rack . . . . . . . . . . . . . . . . . . . . 131
Systems
Driver Assistance . . . . . . . . . . . . . 259

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-12460269) - 2019 - CRC - 9/11/18
458 Index
Vehicle (cont'd)Messages . . . . . . . . . . . . . . . . . . . . 171
Personalization . . . . . . . . . . . . . . . 172
Remote Start . . . . . . . . . . . . . . . . . . . 43
Security . . . . . . . . . . . . . . . . . . . . . . . . 53
Speed Messages . . . . . . . . . . . . . 171
Towing . . . . . . . . . . . . . . . . . . . . . . . . 385
Vehicle Ahead Indicator . . . . . . . . 159
Vehicle Care Tire Pressure . . . . . . . . . . . . . . . . . 355
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . 433
Ventilation, Air . . . . . . . . . . . . . . . . . . 199
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Voltmeter Gauge . . . . . . . . . . . . . . . 152
W
Warning Brake System Light . . . . . . . . . . . 157
Caution and Danger . . . . . . . . . . . . . 3
Lane Departure (LDW) . . . . . . . 271
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . 144
Warnings
Hazard Flashers . . . . . . . . . . . . . . 187
Washer Fluid . . . . . . . . . . . . . . . . . . . 323
Wheels Alignment and Tire Balance . . 367 Wheels (cont'd)
Different Size . . . . . . . . . . . . . . . . . 366
Replacement . . . . . . . . . . . . . . . . . 368
When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 363
Where to Put the Restraint . . . . . 112
Windows . . . . . . . . . . . . . . . . . . . . . . . . 60 Power . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Windshield
Replacement . . . . . . . . . . . . . . . . . 331
Wiper/Washer . . . . . . . . . . . . . . . . 135
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . 212
Winter Tires . . . . . . . . . . . . . . . . . . . . 349
Wiper Blade Replacement . . . . . . 330
Wipers
Rear Washer . . . . . . . . . . . . . . . . . 137
Wireless Charging . . . . . . . . . . . . . . 141