2017 BUICK LACROSSE lane departure

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
Driving and Operating 215
Lane Departure
Warning (LDW)
If equipped, LDW may help avoid
crashes due to unintentional lane
departures. It may provide a
warning if the vehicle is crossing a
detected lane marking without using
a turn signal in the lane departure
direction. Since this system is part
of the Lane Keep Assist (LKA)
system, read the entire LKA section
before using this feature.
Lane Keep Assist (LKA)
If equipped, LKA may help avoid
crashes due to unintentional lane
departures. It may assist by gently
turning the steering wheel if the
vehicle approaches a detected lane
marking without using a turn signal
in that direction. It may also provide
a Lane Departure Warning (LDW)
system alert as the lane marking is
crossed. The LKA system will not
assist or provide an LDW alert if it
detects that you are actively
steering. Override LKA by turning
the steering wheel. LKA uses acamera to detect lane markings
between 60 km/h (37 mph) and
180 km/h (112 mph).
{Warning
The LKA system does not
continuously steer the vehicle.
It may not keep the vehicle in the
lane or give a Lane Departure
Warning (LDW) alert, even if a
lane marking is detected.
The LKA and LDW systems
may not:
. Provide an alert or enough
steering assist to avoid a
lane departure or crash.
. Detect lane markings under
poor weather or visibility
conditions. This can occur if
the windshield or
headlamps are blocked by
dirt, snow, or ice, if they are
not in proper condition, or if
the sun shines directly into
the camera.
. Detect road edges.
(Continued)
Warning (Continued)
.Detect lanes on winding or
hilly roads.
If LKA only detects lane markings
on one side of the road, it will
only assist or provide an LDW
alert when approaching the lane
on the side where it has detected
a lane marking. Even with LKA
and LDW, you must steer the
vehicle. Always keep your
attention on the road and
maintain proper vehicle position
within the lane, or vehicle
damage, injury, or death could
occur. Always keep the
windshield, headlamps, and
camera sensors clean and in
good repair. Do not use LKA in
bad weather conditions.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
216 Driving and Operating
{Warning
Using LKA while towing a trailer
or on slippery roads could cause
loss of control of the vehicle and
a crash. Turn the system off.
How the System Works
The LKA camera sensor is on the
windshield ahead of the rearview
mirror.
To turn LKA on and off, press
A
on the center stack.
When on,
Ais green if LKA is
available to assist and provide LDW
alerts. It may assist by gently
turning the steering wheel and
display
Aas amber if the vehicle
approaches a detected lane marking
without using a turn signal in that
direction. It may also provide an LDW alert by flashing
Aamber
as the lane marking is crossed.
Additionally, there will be three
beeps on the right or left, depending
on the lane departure direction.
The LKA system does not
continuously steer the vehicle.
If LKA does not detect active driver
steering, an alert and chime may be
provided. Move the steering wheel
to dismiss.
When the System Does Not
Seem to Work Properly
The system performance may be
affected by:
. Close vehicles ahead.
. Sudden lighting changes, such
as when driving through tunnels.
. Banked roads.
. Roads with poor lane markings,
such as two-lane roads. If the LKA system is not functioning
properly when lane markings are
clearly visible, cleaning the
windshield may help.
LKA assistance and/or LDW alerts
may occur due to tar marks,
shadows, cracks in the road,
temporary or construction lane
markings, or other road
imperfections. This is normal system
operation; the vehicle does not need
service. Turn LKA off if these
conditions continue.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
340 Index
Interior Rearview Mirrors . . . . . . . . . 44
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - NorthAmerica . . . . . . . . . . . . . . . . . . . . . . . 281
K
Key and Lock Messages . . . . . . . . 132
Keyless EntryRemote (RKE) System . . . . . . . . . 27
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
L
Labeling, Tire Sidewall . . . . . . . . . . 256
Lamps Daytime Running (DRL) . . . . . . 149
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 152
Exterior Controls . . . . . . . . . . . . . . 148
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . 149
License Plate . . . . . . . . . . . . . . . . . 247
Malfunction Indicator . . . . . . . . . .114
Messages . . . . . . . . . . . . . . . . . . . . 133
On Reminder . . . . . . . . . . . . . . . . . 121
Reading . . . . . . . . . . . . . . . . . . . . . . 152
Sun Visor . . . . . . . . . . . . . . . . . . . . . 153
Lane Change Alert (LCA) . . . . . . . 213
Lane Departure
Warning (LDW) . . . . . . . . . . . . . . . . 215 Lane Keep Assist (LKA) . . . . . . . . 215
Lane Keep Assist Light . . . . . . . . . 117
Lap-Shoulder Belt . . . . . . . . . . . . . . . 61
LATCH System
Replacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . . . 91
LATCH, Lower Anchors and
Tethers for Children . . . . . . . . . . . . 85
LED Lighting . . . . . . . . . . . . . . . . . . . . 247
Light Adaptive Forward Lighting
(AFL) Light . . . . . . . . . . . . . . . . . . 121
Lighting Adaptive Forward . . . . . . . . . . . . . 150
Entry . . . . . . . . . . . . . . . . . . . . . . . . . 153
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Illumination Control . . . . . . . . . . . 152
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 247
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . 117 Airbag Readiness . . . . . . . . . . . . . .113
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . .117
Brake System Warning . . . . . . . .116
Charging System . . . . . . . . . . . . . .114
Cruise Control . . . . . . . . . . . . . . . . 122
Door Ajar . . . . . . . . . . . . . . . . . . . . . 122
Electric Parking Brake . . . . . . . . .116 Lights (cont'd)
Engine Coolant
Temperature Warning . . . . . . . .119
Engine Oil Pressure . . . . . . . . . . 120
Flash-to-Pass . . . . . . . . . . . . . . . . . 149
Front Fog Lamp . . . . . . . . . . . . . . 121
High-Beam On . . . . . . . . . . . . . . . . 121
High/Low Beam Changer . . . . . 149
Low Fuel Warning . . . . . . . . . . . . 120
Safety Belt Reminders . . . . . . . . .112
Security . . . . . . . . . . . . . . . . . . . . . . 121
Service Electric Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . .117
StabiliTrak®OFF . . . . . . . . . . . . . .118
Tire Pressure . . . . . . . . . . . . . . . . . .119
Traction Control System (TCS)/StabiliTrak
®. . . . . . . . . . .119
Traction Off . . . . . . . . . . . . . . . . . . . .118
Locks Automatic Door . . . . . . . . . . . . . . . . . 37
Delayed Locking . . . . . . . . . . . . . . . . 37
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Lockout Protection . . . . . . . . . . . . . . 37
Power Door . . . . . . . . . . . . . . . . . . . . . 36
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Loss of Control . . . . . . . . . . . . . . . . . 166
Low Fuel Warning Light . . . . . . . . . 120

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
Index 345
TransmissionAutomatic . . . . . . . . . . . . . . . . . . . . . 181
Fluid, Automatic . . . . . . . . . . . . . . 234
Messages . . . . . . . . . . . . . . . . . . . . 136
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . . . . . . 317
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Turn and Lane-Change
Signals . . . . . . . . . . . . . . . . . . . . . . . . 151
Turn Signal Bulb Replacement . . . . . . . . . . . . 247
U
Uniform Tire Quality Grading . . . 271
Universal Remote System . . . . . . 145
Operation . . . . . . . . . . . . . . . . . . . . . 147
Programming . . . . . . . . . . . . . . . . . 145
Using This Manual . . . . . . . . . . . . . . . . 2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . 40
Canadian Owners . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . 164
Identification Number (VIN) . . . 308
Load Limits . . . . . . . . . . . . . . . . . . . 170
Messages . . . . . . . . . . . . . . . . . . . . 128
Personalization . . . . . . . . . . . . . . . 138
Reminder Messages . . . . . . . . . . 137 Vehicle (cont'd)
Remote Start . . . . . . . . . . . . . . . . . . . 33
Security . . . . . . . . . . . . . . . . . . . . . . . . 40
Speed Messages . . . . . . . . . . . . . 137
Towing . . . . . . . . . . . . . . . . . . . . . . . . 284
Vehicle Ahead Indicator . . . . . . . . 118
Vehicle Care Tire Pressure . . . . . . . . . . . . . . . . . 261
Vehicle Data Recording and
Privacy . . . . . . . . . . . . . . . . . . . . . . . . 322
Vehicle Hold Automatic . . . . . . . . . . . . . . . . . . . . . 189
Vehicle Hold (AVH) Automatic . . . . . . . . . . . . . . . . . . . . . 189
Ventilation, Air . . . . . . . . . . . . . . . . . . 160
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
W
Warning Brake System Light . . . . . . . . . . . .116
Caution and Danger . . . . . . . . . . . . . 2
Lane Departure (LDW) . . . . . . . 215
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . 107
Warnings Hazard Flashers . . . . . . . . . . . . . . 150
Washer Fluid . . . . . . . . . . . . . . . . . . . 241
Wheels Alignment and Tire Balance . . 272 Wheels (cont'd)
Different Size . . . . . . . . . . . . . . . . . 270
Replacement . . . . . . . . . . . . . . . . . 272
When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 268
Where to Put the Restraint . . . . . . 84
Wi-Fi . . . . . . . . . . . . . . . . . . . . . . . . . . . 327
Windows . . . . . . . . . . . . . . . . . . . . . . . . 44 Messages . . . . . . . . . . . . . . . . . . . . 137
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Windshield Replacement . . . . . . . . . . . . . . . . . 246
Wiper/Washer . . . . . . . . . . . . . . . . 102
Winter
Driving . . . . . . . . . . . . . . . . . . . . . . . . 168
Winter Tires . . . . . . . . . . . . . . . . . . . . 255
Wiper Blade Replacement . . . . . . 245
Wireless Charging . . . . . . . . . . . . . . 106