maintenance CHEVROLET SUBURBAN 2018 Workshop Manual

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349385) - 2018 - crc - 11/3/17
OnStar 423
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 Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349385) - 2018 - crc - 11/3/17
430 Index
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 291
Accessory Power . . . . . . . . . . . . . . . 224
Active Fuel Management . . . . . . . 226
Adaptive Cruise Control . . . . . . . . 248
Add-On Electrical Equipment . . . 288
Additional Information OnStar . . . . . . . . . . . . . . . . . . . . . . . 424
Additional Maintenance
and Care . . . . . . . . . . . . . . . . . . . . . . 394
Adjustable Throttle and Brake Pedal . . . . . . . . . . . . . . . . . . . 217
Adjustments
Lumbar, Front Seats . . . . . . . . . . . . 67
Air Cleaner/Filter, Engine . . . . . . . 304
Air Conditioning . . . . . . . . . . . 192, 196
Air Filter, Passenger Compartment . . . . . . . . . . . . . . . . . 198
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 197
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . 104
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . . . 97
Passenger Sensing System . . . . 99
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 97 Airbag System (cont'd)
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . . 97
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 96
Where Are the Airbags? . . . . . . . . 94
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . 103
Passenger Status Indicator . . . 152
Readiness Light . . . . . . . . . . . . . . 151
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . 103
System Check . . . . . . . . . . . . . . . . . . 92
Alarm Vehicle Security . . . . . . . . . . . . . . . . 53
Alert Lane Change . . . . . . . . . . . . . . . . . 263
Side Blind Zone (SBZA) . . . . . . 262
All-Season Tires . . . . . . . . . . . . . . . . 337
All-Terrain Tires . . . . . . . . . . . . . . . . . 338
Antilock Brake System (ABS) . . . 239 Warning Light . . . . . . . . . . . . . . . . . 156
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . 378
Interior . . . . . . . . . . . . . . . . . . . . . . . . 382
Armrest Storage . . . . . . . . . . . . . . . . 128

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349385) - 2018 - crc - 11/3/17
434 Index
Fluid (cont'd)Four-Wheel Drive
Transfer Case . . . . . . . . . . . . . . . 234
Power Steering . . . . . . . . . . . . . . . .311
Washer . . . . . . . . . . . . . . . . . . . . . . . .311
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 186 Bulb Replacement . . . . . . . . . . . . 322
Folding Mirrors . . . . . . . . . . . . . . . . . . 57
Forward Automatic Braking . . . . . 261
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . 258
Four-Wheel Drive . . . . . . . . . . 234, 314
Four-Wheel-Drive Light . . . . . . . . . 156
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 414
Front Axle . . . . . . . . . . . . . . . . . . . . . . 315
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . 66
Heated and Ventilated . . . . . . . . . . 72
Front Turn Signal Lamps . . . . . . . 322
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266 Additives . . . . . . . . . . . . . . . . . . . . . 268
Economy Driving . . . . . . . . . . . . . . . 29
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 270
Filling the Tank . . . . . . . . . . . . . . . 269 Fuel (cont'd)
Foreign Countries . . . . . . . . . . . . 267
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 147
Low Fuel Warning Light . . . . . . . 159
Management, Active . . . . . . . . . . 226
Requirements, California . . . . . 267
Full-Size Spare Tire . . . . . . . . . . . . 367
Fuses Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 325
Fuses and Circuit Breakers . . . 325
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . 330, 333
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 335
G
Garage Door Opener . . . . . . . . . . . 178Programming . . . . . . . . . . . . . . . . . 178
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 319
Gauges Engine CoolantTemperature . . . . . . . . . . . . . . . . 149
Engine Oil Pressure . . . . . . . . . . 148
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Odometer . . . . . . . . . . . . . . . . . . . . . 147
Speedometer . . . . . . . . . . . . . . . . . 147
Tachometer . . . . . . . . . . . . . . . . . . . 147 Gauges (cont'd)
Trip Odometer . . . . . . . . . . . . . . . . 147
Voltmeter . . . . . . . . . . . . . . . . . . . . . 150
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . 142
General Information Service and Maintenance . . . . . 387
Towing . . . . . . . . . . . . . . . . . . . . . . . . 271
Vehicle Care . . . . . . . . . . . . . . . . . . 290
Glass Replacement . . . . . . . . . . . . . 319
Glove Box . . . . . . . . . . . . . . . . . . . . . . 127
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . 408
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . 321
Hazard Warning Flashers . . . . . . . 185
Head Restraints . . . . . . . . . . . . . . . . . 65
Head-up Display . . . . . . . . . . . . . . . . 165
Headlamps . . . . . . . . . . . . . . . . . . . . . 321Aiming . . . . . . . . . . . . . . . . . . . . . . . . 320
Automatic . . . . . . . . . . . . . . . . . . . . . 184
Bulb Replacement . . . . . . . . . . . . 321
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . 184
Flash-to-Pass . . . . . . . . . . . . . . . . . 183
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . 321

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349385) - 2018 - crc - 11/3/17
436 Index
LED Lighting . . . . . . . . . . . . . . . . . . . . 321
Level ControlAutomatic . . . . . . . . . . . . . . . . . . . . . 245
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . 188
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Illumination Control . . . . . . . . . . . 187
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 321
Lights Airbag Readiness . . . . . . . . . . . . . 151
Antilock Brake System
(ABS) Warning . . . . . . . . . . . . . . 156
Brake System Warning . . . . . . . 155
Charging System . . . . . . . . . . . . . 153
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . 153
Cruise Control . . . . . . . . . . . . . . . . 160
Door Ajar . . . . . . . . . . . . . . . . . . . . . 160
Flash-to-Pass . . . . . . . . . . . . . . . . . 183
Four-Wheel-Drive . . . . . . . . . . . . . 156
Front Fog Lamp . . . . . . . . . . . . . . 160
High-Beam On . . . . . . . . . . . . . . . . 159
High/Low Beam Changer . . . . . 183
Hill Descent Control . . . . . . . . . . 157
Lane Keep Assist . . . . . . . . . . . . . 157
Low Fuel Warning . . . . . . . . . . . . 159
Seat Belt Reminders . . . . . . . . . . 151 Lights (cont'd)
Security . . . . . . . . . . . . . . . . . . . . . . 159
StabiliTrak OFF . . . . . . . . . . . . . . . 158
Tire Pressure . . . . . . . . . . . . . . . . . 158
Tow/Haul Mode . . . . . . . . . . . . . . . 156
Traction Control System
(TCS)/StabiliTrak . . . . . . . . . . . . 158
Traction Off . . . . . . . . . . . . . . . . . . . 157
Locking Rear Axle . . . . . . . . . . . . . . 245
Locks
Automatic Door . . . . . . . . . . . . . . . . . 46
Delayed Locking . . . . . . . . . . . . . . . . 46
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Lockout Protection . . . . . . . . . . . . . . 46
Power Door . . . . . . . . . . . . . . . . . . . . . 45
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Loss of Control . . . . . . . . . . . . . . . . . 204
Low Fuel Warning Light . . . . . . . . . 159
Low-Profile Tires . . . . . . . . . . . . . . . . 338
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . 112
Lumbar Adjustment . . . . . . . . . . . . . . 67
Front Seats . . . . . . . . . . . . . . . . . . . . . 67
M
Magnetic Ride Control . . . . . . . . . . 244 Maintenance
Records . . . . . . . . . . . . . . . . . . . . . . 400
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . 394
Maintenance Schedule . . . . . . . . . 389 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 397
Transfer Case . . . . . . . . . . . . . . . . 234
Malfunction Indicator Lamp . . . . . 153
Manual Mode . . . . . . . . . . . . . . . . . . . 231
Memory Features . . . . . . . . . . . . . . . . 13
Memory Seats . . . . . . . . . . . . . . . . . . . 69
Messages Engine Power . . . . . . . . . . . . . . . . 169
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 169
Vehicle Speed . . . . . . . . . . . . . . . . 169
Mirror Child-View . . . . . . . . . . . . . . . . . . . . . . 60
Mirrors Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . . . 60
Blind Spot . . . . . . . . . . . . . . . . . . . . . . 58
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 56
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 57
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 58
Manual Rearview . . . . . . . . . . . . . . . 59
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Tilt in Reverse . . . . . . . . . . . . . . . . . . 59

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349385) - 2018 - crc - 11/3/17
438 Index
Rear Axle . . . . . . . . . . . . . . . . . . . . . . . 315Locking . . . . . . . . . . . . . . . . . . . . . . . 245
Rear Climate Control System . . . 196
Rear Seats . . . . . . . . . . . . . . . . . . . . . . 74 Heated . . . . . . . . . . . . . . . . . . . . . . . . . 74
Rear Storage . . . . . . . . . . . . . . . . . . . 128
Rear Vision Camera (RVC) . . . . . 256
Rear Window Washer/Wiper . . . . 136
Rearview Mirrors . . . . . . . . . . . . . . . . 59 Automatic Dimming . . . . . . . . . . . . . 60
Reclining Seatbacks . . . . . . . . . . . . . 68
Recommended Fluids and
Lubricants . . . . . . . . . . . . . . . . . . . . . 397
Records Maintenance . . . . . . . . . . . . . . . . . . 400
Recreational Vehicle Towing . . . . 372
Reimbursement Program,
GM Mobility . . . . . . . . . . . . . . . . . . . 408
Remote Keyless Entry (RKE) System . . . . . . . . . . 34, 35, 41
Remote Vehicle Start . . . . . . . . . . . . 43
Replacement
Glass . . . . . . . . . . . . . . . . . . . . . . . . . 319
Replacement Parts Airbags . . . . . . . . . . . . . . . . . . . . . . . 104
Maintenance . . . . . . . . . . . . . . . . . . 398
Replacing Airbag System . . . . . . . 104 Replacing LATCH System
Parts after a Crash . . . . . . . . . . . . 120
Replacing Seat Belt System Parts after a Crash . . . . . . . . . . . . . 91
Reporting Safety Defects Canadian Government . . . . . . . . 415
General Motors . . . . . . . . . . . . . . . 415
U.S. Government . . . . . . . . . . . . . 414
Restraints Where to Put . . . . . . . . . . . . . . . . . . 111
Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . . . . 224
Reverse Tilt Mirrors . . . . . . . . . . . . . . 59
Ride Control Systems Magnetic . . . . . . . . . . . . . . . . . . . . . 244
Roads
Driving, Wet . . . . . . . . . . . . . . . . . . 209
Roadside Assistance Program . . . . . . . . . . . . . . . . . . . . . . . 408
Roof Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . 62
Roof Rack System . . . . . . . . . . . . . . 129
Rotation, Tires . . . . . . . . . . . . . . . . . . 350
Routing, Engine Drive Belt . . . . . . 403
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . . 227S
Safety Defects ReportingCanadian Government . . . . . . . . 415
General Motors . . . . . . . . . . . . . . . 415
U.S. Government . . . . . . . . . . . . . 414
Safety Locks . . . . . . . . . . . . . . . . . . . . . 47
Safety System Check . . . . . . . . . . . . 91
Scheduling Appointments . . . . . . . 410
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . 83 Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Extender . . . . . . . . . . . . . . . . . . . . . . . . 91
How to Wear Seat Belts
Properly . . . . . . . . . . . . . . . . . . . . . . . 84
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . . 90
Lap-Shoulder Belt . . . . . . . . . . . . . . 85
Reminders . . . . . . . . . . . . . . . . . . . . 151
Replacing after a Crash . . . . . . . . 91
Use During Pregnancy . . . . . . . . . . 89
Seats
Adjustment, Front . . . . . . . . . . . . . . . 66
Center Seat . . . . . . . . . . . . . . . . . . . . 67
Head Restraints . . . . . . . . . . . . . . . . 65
Heated and Ventilated Front . . . . 72
Heated, Rear . . . . . . . . . . . . . . . . . . . 74
Lumbar Adjustment, Front . . . . . . 67
Memory . . . . . . . . . . . . . . . . . . . . . . . . . 69
Power Adjustment, Front . . . . . . . 67
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349385) - 2018 - crc - 11/3/17
Index 439
Seats (cont'd)Reclining Seatbacks . . . . . . . . . . . . 68
Second Row . . . . . . . . . . . . . . . . . . . . 75
Third Row Seat . . . . . . . . . . . . . . . . . 79
Second Row Seats . . . . . . . . . . . . . . 75
Securing Child Restraints . . . . . . . . . . . . . . . . 121, 123
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . 159
OnStar . . . . . . . . . . . . . . . . . . . . . . . 420
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 53
Vehicle Alarm . . . . . . . . . . . . . . . . . . . 53
Service . . . . . . . . . . . . . . . . . . . . . . . . . 199 Accessories and
Modifications . . . . . . . . . . . . . . . . 291
Doing Your Own Work . . . . . . . . 292
Maintenance Records . . . . . . . . 400
Maintenance, General Information . . . . . . . . . . . . . . . . . . 387
Parts Identification Label . . . . . 401
Publications Ordering Information . . . . . . . . . . . . . . . . . . 413
Scheduling Appointments . . . . . 410
Services Special Application . . . . . . . . . . . 394
Servicing the Airbag . . . . . . . . . . . . 103 Shift Lock Control Function
Check, Automatic
Transmission . . . . . . . . . . . . . . . . . . 317
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 224
Out of Park . . . . . . . . . . . . . . . . . . . 225
Side Blind Zone Alert (SBZA) . . . 262
Signals, Turn and
Lane-Change . . . . . . . . . . . . . . . . . 185
Special Application Services . . . . 394
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . . 402
Speedometer . . . . . . . . . . . . . . . . . . . 147
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . . . 158
Start Assist, Hill . . . . . . . . . . . . . . . . . 241
Start Vehicle, Remote . . . . . . . . . . . 43
Starter Switch Check . . . . . . . . . . . 316
Starting the Engine . . . . . . . . . . . . . 221
Steering . . . . . . . . . . . . . . . . . . . . . . . . 203 Fluid, Power . . . . . . . . . . . . . . . . . . .311
Heated Wheel . . . . . . . . . . . . . . . . 133
Wheel Adjustment . . . . . . . . . . . . 132
Wheel Controls . . . . . . . . . . . . . . . 133
Steps
Power Assist . . . . . . . . . . . . . . . . . . . 52
Stoplamps and Back-up Lamps Bulb Replacement . . . . . . . . . . . . 322 Storage
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Storage Areas Armrest . . . . . . . . . . . . . . . . . . . . . . . 128
Center Console . . . . . . . . . . . . . . . 128
Convenience Net . . . . . . . . . . . . . 129
Glove Box . . . . . . . . . . . . . . . . . . . . 127
Instrument Panel . . . . . . . . . . . . . 127
Roof Rack System . . . . . . . . . . . . 129
Sunglasses . . . . . . . . . . . . . . . . . . . 128
Storage Compartments . . . . . . . . . 127
Struts
Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . 319
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 211
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 62
Sunglass Storage . . . . . . . . . . . . . . . 128
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Forward CollisionAlert (FCA) . . . . . . . . . . . . . . . . . . 258
Infotainment . . . . . . . . . . . . . 191, 417
Roof Rack . . . . . . . . . . . . . . . . . . . . 129
Systems Driver Assistance . . . . . . . . . . . . . 255
T
Tachometer . . . . . . . . . . . . . . . . . . . . . 147