2013 BUICK LACROSSE lane assist

Black plate (3,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
In Brief 1-3
1.Exterior Lamp Controls on
page 6‑1.
Fog Lamps on page 6‑4 (If
Equipped).
Instrument Panel Illumination
Control on page 6‑5.
Head-Up Display (HUD) on
page 5‑29 (If Equipped).
2. Air Vents on page 8‑6.
3. Turn and Lane-Change Lever. See Turn and Lane-Change
Signals on page 6‑4.
Driver Information Center
Buttons. See Driver Information
Center (DIC) on page 5‑25.
4. Instrument Cluster on page 5‑9.
Driver Information Center
Display. See Driver Information
Center (DIC) on page 5‑25.
5. Windshield Wiper/Washer on
page 5‑3.
6. Infotainment Display Screen.
7. Infotainment. See infotainment system manual. 8. Hood Release. See
Hood on
page 10‑5.
9. Front Storage on page 4‑1.
10. Data Link Connector (DLC) (Out of View). See Malfunction
Indicator Lamp on page 5‑16.
11. Cruise Control on page 9‑37.
12. Steering Wheel Adjustment on
page 5‑2.
13. Horn on page 5‑3.
14. Steering Wheel Controls on
page 5‑2 (If Equipped).
15. Ignition Positions (Keyless
Access) on page 9‑15 or
Ignition Positions (Key Access)
on page 9‑17.
16. Heated and Ventilated Front
Seats on page 3‑8 (If
Equipped).
17. Dual Automatic Climate Control
System on page 8‑1.
18. Parking Brake on page 9‑32. 19. Shift Lever Position Indicator.
SeeAutomatic Transmission
on page 9‑27.
20. Shift Lever. See Shifting Into
Park on page 9‑24.
21. Traction Control System (TCS)
on page 9‑34.
StabiliTrak
®System on
page 9‑35 (If Equipped).
Ultrasonic Parking Assist on
page 9‑40.
Rear Window Sunshade on
page 2‑19 (If Equipped).
22. Power Door Locks on
page 2‑10.
Hazard Warning Flashers on
page 6‑4.
Passenger Sensing System on
page 3‑26.

Black plate (8,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
9-8 Driving and Operating
.Stay in your own lane. Do not
swing wide or cut across the
center of the road. Drive at
speeds that let you stay in your
own lane.
.Be alert on top of hills;
something could be in your lane
(stalled car, accident).
.Pay attention to special road
signs (falling rocks area, winding
roads, long grades, passing or
no-passing zones) and take
appropriate action.
Winter Driving
Driving on Snow or Ice
Drive carefully when there is snow
or ice between the tires and the
road, creating less traction or grip.
Wet ice can occur at about 0°C
(32°F) when freezing rain begins to
fall, resulting in even less traction.
Avoid driving on wet ice or in
freezing rain until roads can be
treated with salt or sand.Drive with caution, whatever the
condition. Accelerate gently so
traction is not lost. Accelerating too
quickly causes the wheels to spin
and makes the surface under the
tires slick, so there is even less
traction.
Try not to break the fragile traction.
If you accelerate too fast, the drive
wheels will spin and polish the
surface under the tires even more.
The Antilock Brake System (ABS)
improves vehicle stability during
hard stops on slippery roads, but
apply the brakes sooner than when
on dry pavement. See
Antilock
Brake System (ABS) on page 9‑31.
Allow greater following distance on
any slippery road and watch for
slippery spots. Icy patches can
occur on otherwise clear roads in
shaded areas. The surface of a
curve or an overpass can remain icy
when the surrounding roads are
clear. Avoid sudden steering
maneuvers and braking while
on ice. Turn off cruise control on slippery
surfaces.
Blizzard Conditions
Being stuck in snow can be a
serious situation. Stay with the
vehicle unless there is help nearby.
If possible, use Roadside
Assistance. See
Roadside
Assistance Program (U.S. and
Canada) on page 13‑7 orRoadside
Assistance Program (Mexico) on
page 13‑9. To get help and keep
everyone in the vehicle safe:
.Turn on the hazard warning
flashers.
.Tie a red cloth to an outside
mirror.
{WARNING
Snow can trap engine exhaust
under the vehicle. This may
cause exhaust gases to get
inside. Engine exhaust contains
carbon monoxide (CO) which
(Continued)

Black plate (41,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
Driving and Operating 9-41
When the System Does Not
Seem to Work Properly
The following messages may be
displayed on the DIC:
SERVICE PARK ASSIST:If this
message occurs, take the vehicle to
your dealer to repair the system.
PARK ASSIST OFF: If the URPA
system does not activate due to a
temporary condition, this message
displays on the DIC. This can occur
under the following conditions:
.The driver has disabled the
system.
.The ultrasonic sensors are not
clean. Keep the vehicle's rear
bumper free of mud, dirt, snow,
ice, and slush. For cleaning
instructions, see Exterior Care
on page 10‑92.
.The park assist sensors are
covered by frost or ice. Frost or
ice can form around and behind
the sensors and may not always
be seen; this can occur after
washing the vehicle in cold weather. The message may not
clear until the frost or ice has
melted.
.An object was hanging out of the
trunk during the last drive cycle.
Once the object is removed,
URPA will return to normal
operation.
.The bumper is damaged. Take
the vehicle to your dealer to
repair the system.
.Other conditions, such as
vibrations from a jackhammer or
the compression of air brakes on
a very large truck, are affecting
system performance.
Side Blind Zone
Alert (SBZA)
The vehicle may have a Side Blind
Zone Alert (SBZA) system. Read
this entire section before using the
system.
{WARNING
SBZA does not detect vehicles
rapidly approaching outside of the
side blind zones, pedestrians,
bicyclists, or animals. Failure to
use proper care when changing
lanes may result in injury, death,
or vehicle damage. Before
making a lane change, always
check mirrors, glance over your
shoulder, and use the turn
signals.
When the system detects a vehicle
in the side blind zone, amber SBZA
displays will light up in the side
mirrors. This indicates that it may be
unsafe to change lanes. Before
making a lane change, always
check the SBZA display, check the
outside and rearview mirrors, look
over your shoulder for vehicles and
hazards, and use the turn signal.

Black plate (39,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
Vehicle Care 10-39
Mini Fuses Usage53 Run/Crank for Inside Rearview Mirror,
Rear Vision Camera,
Air Quality Sensor,
Aero Shutter Motor
54 Run/Crank for: Heating, Ventilation
and Air
Conditioning,
Headlamp Switch
55 Outside Rearview Mirror, Universal
Garage Door
Opener, Front
Window Switches
56 Windshield Washer
60 Heated Mirror
62 Canister Vent
64 Adaptive Forward Lighting (AFL)
Module—Battery
65 Not Used Mini Fuses Usage
66 AIR Solenoid (eAssist)
67 Fuel System Control Module
69 Regulated Voltage Control Sensor
70 Ultrasonic Parking Assist/Side Blind
Zone/Lane
Departure Warning/
Rain Sensor
71 Passive Entry/ Passive Start
Mini Relays Usage 7 Engine Control Module
9 Cooling Fan
13 Cooling Fan
15 Run/Crank
16 AIR Pump Mini Relays Usage
17 Rear Window Defogger
Micro
Relays Usage
1 Air Conditioning Compressor Clutch
2 Starter
4 Wiper Speed
5 Wiper Control
6 Cabin Heater Coolant Pump
(eAssist)
10 Cooling Fan
14 Headlamp Low Beam
Ultra Micro Relays Usage
11 Transmission Auxiliary Oil Pump
(eAssist)

Black plate (10,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
i-10 INDEX
Safety Belts (cont'd)Reminders . . . . . . . . . . . . . . . . . . . . 5-13
Replacing after a Crash . . . . . . 3-19
Use During Pregnancy . . . . . . . . 3-17
Safety Defects Reporting Canadian Government . . . . . . 13-18
General Motors . . . . . . . . . . . . . 13-18
U.S. Government . . . . . . . . . . . 13-17
Safety Locks . . . . . . . . . . . . . . . . . . . 2-10
Safety System Check . . . . . . . . . . 3-18
Satellite Radio . . . . . . . . . . . . . . . . . 7-10
Scheduling Appointments . . . . . 13-12
Sealant Kit, Tire . . . . . . .10-64, 10-71
Seats
Adjustment, Front . . . . . . . . . . . . . . 3-3
Head Restraints . . . . . . . . . . . . . . . 3-2
Heated and Ventilated Front . . . 3-8
Lumbar Adjustment, Front . . . . . 3-4
Memory . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Power Adjustment, Front . . . . . . 3-4
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Reclining Seatbacks . . . . . . . . . . . 3-5
Securing Child
Restraints . . . . . . . . . . . . . . 3-47, 3-49 Security
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23
Messages . . . . . . . . . . . . . . . . . . . . 5-37
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 14-2
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 2-12
Vehicle Alarm . . . . . . . . . . . . . . . . . 2-12
Selective Ride Control . . . . . . . . . 9-37
Service . . . . . . . . . . . . . . . . . . . . . . . . . 8-7
Accessories andModifications . . . . . . . . . . . . . . . . 10-3
Doing Your Own Work . . . . . . . . 10-4
Engine Soon Light . . . . . . . . . . . . 5-16
Maintenance Records . . . . . . .11-15
Maintenance, General
Information . . . . . . . . . . . . . . . . . . 11-1
Parts Identification Label . . . . . 12-1
Publications Ordering
Information . . . . . . . . . . . . . . . . 13-16
Scheduling Appointments . . . 13-12
Servicing the Airbag . . . . . . . . . . . 3-30
Shift Lock Control Function Check, Automatic
Transmission . . . . . . . . . . . . . . . . 10-28
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 9-24
Out of Park . . . . . . . . . . . . . . . . . . . 9-25 Side Blind Zone Alert . . . . . . . . . . 9-41
Signals, Turn and
Lane-Change . . . . . . . . . . . . . . . . . 6-4
Spare Tire Compact . . . . . . . . . . . . . . . . . . . . 10-86
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . 12-2
Speedometer . . . . . . . . . . . . . . . . . . 5-11
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . . . 5-20
System . . . . . . . . . . . . . . . . . . . . . . . 9-35
Start Assist, Hills . . . . . . . . . . . . . . 9-34
Start Vehicle, Remote . . . . . . . . . . 2-8
Starter Switch Check . . . . . . . . . 10-28
Starting the Engine . . . . . . . . . . . . 9-19
Starting the Vehicle Messsages . . . . . . . . . . . . . . . . . . . 5-37
Steering . . . . . . . . . . . . . . . . . . . . . . . . 9-4 Fluid, Power . . . . . . . . . . . . . . . . 10-23
Heated Wheel . . . . . . . . . . . . . . . . . 5-3
Wheel Adjustment . . . . . . . . . . . . . 5-2
Wheel Controls . . . . . . . . . . . . . . . . 5-2
Stoplamps and Back-up Lamps Bulb Replacement . . . . . . . . . . 10-33

Black plate (12,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
i-12 INDEX
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Turn and Lane-ChangeSignals . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Turn Signal Bulb Replacement . . . . . . . . . . 10-33
U
Ultrasonic Parking Assist . . . . . . 9-40
Uniform Tire QualityGrading . . . . . . . . . . . . . . . . . . . . . 10-59
Universal Remote System . . . . . 5-45 Operation . . . . . . . . . . . . . . . . . . . . . 5-48
Programming . . . . . . . . . . . . . . . . . 5-45
Using This Manual . . . . . . . . . . . . . . . . iii
V
Vehicle Alarm System . . . . . . . . . . . . . . . . 2-12
Canadian Owners . . . . . . . . . . . . . . . iii
Control . . . . . . . . . . . . . . . . . . . . . . . . 9-3
IdentificationNumber (VIN) . . . . . . . . . . . . . . . 12-1
Load Limits . . . . . . . . . . . . . . . . . . . 9-10
Messages . . . . . . . . . . . . . . . . . . . . 5-32
Personalization . . . . . . . . . . . . . . . 5-39 Vehicle (cont'd)
Remote Start . . . . . . . . . . . . . . . . . . 2-8
Security . . . . . . . . . . . . . . . . . . . . . . 2-12
Towing . . . . . . . . . . . . . . . . . . . . . . 10-90
Vehicle Care Storing the Tire Sealantand Compressor Kit . . . . . . . 10-79
Tire Pressure . . . . . . . . . . . . . . . 10-49
Ventilation, Air . . . . . . . . . . . . . . . . . . 8-6
Visors . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Voltage Devices and
Wiring . . . . . . . . . . . . . . . . . . . . . . . 10-34
W
WarningBrake System Light . . . . . . . . . . . 5-18
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . 5-8
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . iii Cautions and Danger . . . . . . . . . . . . iii
Hazard Flashers . . . . . . . . . . . . . . . 6-4
Washer Fluid . . . . . . . . . . . . . . . . . 10-24 Wheels
Alignment and Tire
Balance . . . . . . . . . . . . . . . . . . . 10-61
Different Size . . . . . . . . . . . . . . . 10-59
Replacement . . . . . . . . . . . . . . . 10-61
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 10-56
Where to Put the Restraint . . . . 3-38
Windows . . . . . . . . . . . . . . . . . . . . . . 2-17 Messages . . . . . . . . . . . . . . . . . . . . 5-39
Power . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Windshield Wiper/Washer . . . . . . . . . . . . . . . . . 5-3
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . . 9-8
Winter Tires . . . . . . . . . . . . . . . . . . 10-43
Wiper Blade Replacement . . . . 10-29
Wiring, High Voltage
Devices . . . . . . . . . . . . . . . . . . . . . 10-34