2019 BUICK ENCLAVE lane assist

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12146155) - 2019 - crc - 9/10/18
264 Driving and Operating
Electric Trailer Brake Control
Wiring Provisions
Wiring provisions for an aftermarket
electric trailer brake controller are
included with the vehicle as part of
the trailer wiring package. The
harness contains the following
circuits:Electric Trailer
Brakes Blue
Battery Feed Red/Green or
Red/Blue
Brake Apply
Signal White/Blue
Ground Black
Refer to the aftermarket electric
trailer brake controller owner's
manual to determine wire color
coding of the electric trailer brake
controller. The wire colors on the
brake controller may be different
from the vehicle. The electric trailer
brake controller should be installed
by your dealer or a qualified service
center. If equipped, there are four blunt cut
wires inside the front driver side
instrument panel. It will be
necessary to have a technician
connect the 12-volt power to the
engine compartment fuse block.
Trailer Lamps
Always check all trailer lamps are
working at the beginning of each
trip, and periodically on longer trips.
Turn Signals When Towing a
Trailer
When properly connected, the trailer
turn signals will illuminate to indicate
the vehicle is turning, changing
lanes, or stopping. When towing a
trailer, the arrows on the instrument
cluster will illuminate even if the
trailer is not properly connected or
the bulbs are burned out.
Always check all trailer lamps are
working at the beginning of each
trip, and periodically on longer trips.
Tow/Haul Mode
For instructions on how to enter
Tow/Haul mode, see
Driver Mode
Control 0223.
Tow/Haul assists when pulling a
heavy trailer or a large or heavy
load. See Tow/Haul Mode 0217.
Tow/Haul Mode is designed to be
most effective when the vehicle and
trailer combined weight is at least
75% of the vehicle's Gross
Combined Weight Rating (GCWR).
See “Weight of the Trailer” under
Trailer Towing 0258.
Tow/Haul Mode is most useful when
pulling a heavy trailer or a large or
heavy load:
. through rolling terrain
. in stop-and-go traffic
. in busy parking lots
Operating the vehicle in Tow/Haul
Mode when lightly loaded or not
towing will not cause damage. It is
not recommended and may result in

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12146155) - 2019 - crc - 9/10/18
386 Index
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 269
Accessory Power . . . . . . . . . . . . . . . 207
Adaptive Cruise Control . . . . . . . . 227
Add-On Electrical Equipment . . . 266
Additional Information OnStar . . . . . . . . . . . . . . . . . . . . . . . 376
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . . . . 351
Adjustments Lumbar, Front Seats . . . . . . . . . . . . 64
Air Cleaner/Filter, Engine . . . . . . . 276
Air Conditioning . . . . . . . . . . . 178, 182
Air Filter, Passenger Compartment . . . . . . . . . . . . . . . . . 185
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 184
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . 95
How Does an Airbag
Restrain? . . . . . . . . . . . . . . . . . . . . . 88
Passenger Sensing System . . . . 90
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 88
What Will You See after an Airbag Inflates? . . . . . . . . . . . . . . . 88
When Should an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 87 Airbag System (cont'd)
Where Are the Airbags? . . . . . . . . 85
Airbags Adding Equipment to the
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . 94
Passenger Status Indicator . . . 140
Readiness Light . . . . . . . . . . . . . . 140
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . 94
System Check . . . . . . . . . . . . . . . . . . 83
Alarm Vehicle Security . . . . . . . . . . . . . . . . 50
Alert Lane Change . . . . . . . . . . . . . . . . . 247
Side Blind Zone (SBZA) . . . . . . 246
All-Season Tires . . . . . . . . . . . . . . . . 300
All-Wheel Drive . . . . . . . . . . . . 218, 285
Antilock Brake System (ABS) . . . 218 Warning Light . . . . . . . . . . . . . . . . . 144
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . 334
Interior . . . . . . . . . . . . . . . . . . . . . . . . 339
Assistance Program,
Roadside . . . . . . . . . . . . . . . . . . . . . . 364
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . 240
Assistance Systems for Parking and Backing . . . . . . . . . . 237

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12146155) - 2019 - crc - 9/10/18
Index 391
K
Keyless EntryRemote (RKE) System . . . . . . . . . 29
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
L
Labeling, Tire Sidewall . . . . . . . . . . 301
Lamps Courtesy . . . . . . . . . . . . . . . . . . . . . . 173
Daytime Running (DRL) . . . . . . 171
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 173
Exterior Controls . . . . . . . . . . . . . . 168
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . 170
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . 176
License Plate . . . . . . . . . . . . . . . . . 289
Malfunction Indicator (Check Engine) . . . . . . . . . . . . . 141
On Reminder . . . . . . . . . . . . . . . . . 149
Reading . . . . . . . . . . . . . . . . . . . . . . 173
Lane Change Alert (LCA) . . . . . . . 247
Lane Departure Warning (LDW) . . . . . . . . . . . . . . . . 249
Lane Keep Assist (LKA) . . . . . . . . 249
Lane Keep Assist Light . . . . . . . . . 145
Lap-Shoulder Belt . . . . . . . . . . . . . . . 79 LATCH System
Replacing Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . . 111
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . 103
LED Lighting . . . . . . . . . . . . . . . . . . . . 289
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . 174
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Illumination Control . . . . . . . . . . . 173
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 289
Lights Airbag Readiness . . . . . . . . . . . . . 140
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . 144
Brake System Warning . . . . . . . 143
Charging System . . . . . . . . . . . . . 141
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . 141
Cruise Control . . . . . . . . . . . . . . . . 149
Door Ajar . . . . . . . . . . . . . . . . . . . . . 149
Electric Parking Brake . . . . . . . . 144
Engine Oil Pressure . . . . . . . . . . 147
Flash-to-Pass . . . . . . . . . . . . . . . . . 170
High-Beam On . . . . . . . . . . . . . . . . 148
High/Low Beam Changer . . . . . 170
Lane Keep Assist . . . . . . . . . . . . . 145 Lights (cont'd)
Low Fuel Warning . . . . . . . . . . . . 148
Seat Belt Reminders . . . . . . . . . . 139
Security . . . . . . . . . . . . . . . . . . . . . . 148
Service Electric Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . 144
Sport Mode . . . . . . . . . . . . . . . . . . . 145
StabiliTrak OFF . . . . . . . . . . . . . . . 146
Tire Pressure . . . . . . . . . . . . . . . . . 147
Traction Control System (TCS)/StabiliTrak . . . . . . . . . . . . 146
Traction Off . . . . . . . . . . . . . . . . . . . 146
Locks Automatic Door . . . . . . . . . . . . . . . . . 40
Delayed Locking . . . . . . . . . . . . . . . . 40
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Lockout Protection . . . . . . . . . . . . . . 41
Power Door . . . . . . . . . . . . . . . . . . . . . 40
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Loss of Control . . . . . . . . . . . . . . . . . 190
Low Fuel Warning Light . . . . . . . . . 148
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . 103
Lumbar Adjustment . . . . . . . . . . . . . . 64 Front Seats . . . . . . . . . . . . . . . . . . . . . 64

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12146155) - 2019 - crc - 9/10/18
394 Index
Seat Belts (cont'd)How to Wear Seat Belts
Properly . . . . . . . . . . . . . . . . . . . . . . . 77
Lap-Shoulder Belt . . . . . . . . . . . . . . 79
Reminders . . . . . . . . . . . . . . . . . . . . 139
Replacing after a Crash . . . . . . . . 82
Use During Pregnancy . . . . . . . . . . 81
Seats Head Restraints . . . . . . . . . . . . . . . . 62
Heated and Ventilated Front . . . . 68
Heated, Rear . . . . . . . . . . . . . . . . . . . 73
Lumbar Adjustment, Front . . . . . . 64
Memory . . . . . . . . . . . . . . . . . . . . . . . . . 65
Power Adjustment, Front . . . . . . . 64
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Reclining Seatbacks . . . . . . . . . . . . 64
Third Row Seat . . . . . . . . . . . . . . . . . 73
Securing Child
Restraints . . . . . . . . . . . . . . . . 111, 113
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . 148
OnStar . . . . . . . . . . . . . . . . . . . . . . . 376
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 50
Vehicle Alarm . . . . . . . . . . . . . . . . . . . 50
Service . . . . . . . . . . . . . . . . . . . . . . . . . 185 Accessories andModifications . . . . . . . . . . . . . . . . 269
Doing Your Own Work . . . . . . . . 269 Service (cont'd)
Maintenance Records . . . . . . . . 356
Maintenance, General
Information . . . . . . . . . . . . . . . . . . 344
Parts Identification Label . . . . . 357
Scheduling Appointments . . . . . 366
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . 144
Services
Special Application . . . . . . . . . . . 351
Servicing the Airbag . . . . . . . . . . . . . 94
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 207
Out of Park . . . . . . . . . . . . . . . . . . . 208
Side Blind Zone Alert (SBZA) . . . 246
Signals, Turn and Lane-Change . . . . . . . . . . . . . . . . . 172
Spare Tire
Compact . . . . . . . . . . . . . . . . . . . . . . 327
Special Application Services . . . . 351
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . . 358
Speedometer . . . . . . . . . . . . . . . . . . . 135
Sport Mode Light . . . . . . . . . . . . . . . 145
StabiliTrak
OFF Light . . . . . . . . . . . . . . . . . . . . . 146
Start Assist, Hill . . . . . . . . . . . . . . . . . 221
Start Vehicle, Remote . . . . . . . . . . . 36 Starter Switch Check . . . . . . . . . . . 285
Starting the Engine . . . . . . . . . . . . . 204
Steering . . . . . . . . . . . . . . . . . . . . . . . . 189
Heated Wheel . . . . . . . . . . . . . . . . 123
Wheel Adjustment . . . . . . . . . . . . 123
Wheel Controls . . . . . . . . . . . . . . . 123
Stop/Start System . . . . . . . . . . . . . . 205
Storage Areas
Cargo Management System . . .118
Center Console . . . . . . . . . . . . . . . .118
Glove Box . . . . . . . . . . . . . . . . . . . . .117
Roof Rack System . . . . . . . . . . . . 120
Sunglasses . . . . . . . . . . . . . . . . . . . .118
Storage Compartments . . . . . . . . . 117
Struts Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 198
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 58
Sunglass Storage . . . . . . . . . . . . . . . 118
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Forward CollisionAlert (FCA) . . . . . . . . . . . . . . . . . . 240
Infotainment . . . . . . . . . . . . . 177, 373
Roof Rack . . . . . . . . . . . . . . . . . . . . 120
Systems Driver Assistance . . . . . . . . . . . . . 235