seats BUICK LACROSSE 2017 Repair Manual

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
154 Lighting
voltage move up or down. This is
normal. If there is a problem, an
alert will be displayed.
The battery can be discharged at
idle if the electrical loads are very
high. This is true for all vehicles.
This is because the generator
(alternator) may not be spinning fast
enough at idle to produce all of the
power needed for very high
electrical loads.
A high electrical load occurs when
several of the following are on, such
as: headlamps, high beams, rear
window defogger, climate control fan
at high speed, heated seats, engine
cooling fans, trailer loads, and loads
plugged into accessory power
outlets.
EPM works to prevent excessive
discharge of the battery. It does this
by balancing the generator's output
and the vehicle's electrical needs.
It can increase engine idle speed to
generate more power whenever
needed. It can temporarily reduce
the power demands of some
accessories.Normally, these actions occur in
steps or levels, without being
noticeable. In rare cases at the
highest levels of corrective action,
this action may be noticeable to the
driver. If so, a DIC message might
be displayed and it is recommended
that the driver reduce the electrical
loads as much as possible.
Battery Power Protection
The battery saver feature is
designed to protect the vehicle's
battery.
If the exterior lamps or any interior
lamp is left on and the ignition is
turned off, the battery rundown
protection system automatically
turns the lamp off after about
10 minutes.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
156 Climate Controls
Climate Controls
Climate Control Systems
Dual Automatic ClimateControl System . . . . . . . . . . . . . 156
Air Vents
Air Vents . . . . . . . . . . . . . . . . . . . . . 160
Maintenance
Air Intake . . . . . . . . . . . . . . . . . . . . . 161
Passenger Compartment AirFilter . . . . . . . . . . . . . . . . . . . . . . . . 161
Service . . . . . . . . . . . . . . . . . . . . . . . 161
Climate Control Systems
Dual Automatic Climate Control System
The heating, cooling, and ventilation in the vehicle can be controlled with this
system.
Climate Control Buttons
1. Driver and Passenger Temperature Displays
2. Driver and Passenger Temperature Controls
3. Driver and Passenger Heated and Ventilated Seats (If
Equipped)
4. Fan Controls 5. CLIMATE
6. MAX Defrost
7. Recirculation
8. Rear Window Defogger and
Heated Outside Mirrors (If
Equipped)
9. Power (ON/OFF)

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
160 Climate Controls
If the vehicle is equipped with
heated outside mirrors, they turn on
when the rear window defogger
button is on and help to clear fog or
frost from the surface of the mirror.
SeeHeated Mirrors 043.
Caution
Do not try to clear frost or other
material from the inside of the
front windshield and rear window
with a razor blade or anything
else that is sharp. This may
damage the rear window
defogger grid and affect the
radio's ability to pick up stations
clearly. The repairs would not be
covered by the vehicle warranty.
Heated and Ventilated Seats
LorM:If equipped, pressLorMto heat the driver or passenger seat.
{orC:If equipped, press{orCto ventilate the driver or
passenger seat. See Heated and
Ventilated Seats 012. Remote Start Climate Control
Operation :
If equipped with remote
start, the climate control system
may run when the vehicle is started
remotely. If the vehicle. If the vehicle
has heated or ventilated seats, they
may come on during a remote start.
See Remote Vehicle Start 033 and
Heated and Ventilated Seats 012.
Sensors
The solar sensor on top of the
instrument panel near the
windshield, monitors the solar heat.
The climate control system uses the
sensor information to adjust the
temperature, fan speed,
recirculation, and air delivery mode
for best comfort.
Do not cover the sensor; otherwise
the automatic climate control system
may not work properly.
Air Vents
Use the slider knob on the air vent
louvers to change the amount and
direction of the airflow.
To close the outboard air vents,
move the slider knob to the full
outboard position.
To close the center air vents, move
the slide knob to the full inboard
position.
To close the rear passenger air
vents, move the slider knob to the
full inboard position.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
Climate Controls 161
Operation Tips
.Keep all outlets open whenever
possible for best system
performance.
. Keep the path under all seats
clear of objects to help circulate
the air inside the vehicle more
effectively.
. Use of non-GM approved hood
deflectors can adversely affect
the performance of the system.Maintenance
Air Intake
Clear away any ice, snow, or leaves
from the air intake at the base of the
windshield that can block the flow of
air into the vehicle.
Passenger Compartment
Air Filter
The filter removes dust, pollen, and
other airborne irritants from outside
air that is pulled into the vehicle.
The filter should be replaced as part
of routine scheduled maintenance.
See Maintenance Schedule 0297
for replacement intervals. For more
information, see your dealer.
Service
All vehicles have a label underhood
that identifies the refrigerant used in
the vehicle. The refrigerant system
should only be serviced by trained
and certified technicians. The air
conditioning evaporator should
never be repaired or replaced by
one from a salvage vehicle.
It should only be replaced by a new
evaporator to ensure proper and
safe operation.
During service, all refrigerants
should be reclaimed with proper
equipment. Venting refrigerants
directly to the atmosphere is harmful
to the environment and may also
create unsafe conditions based on
inhalation, combustion, frostbite,
or other health-based concerns.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
Driving and Operating 173
{Warning
Things inside the vehicle can
strike and injure people in a
sudden stop or turn, or in a
crash.
.Put things in the cargo
area of the vehicle. In the
cargo area, put them as
far forward as possible.
Try to spread the weight
evenly.
.Never stack heavier
things, like suitcases,
inside the vehicle so that
some of them are above
the tops of the seats.
.Do not leave an
unsecured child restraint
in the vehicle.
.Secure loose items in the
vehicle.
.Do not leave a seat
folded down unless
needed.
Starting and
Operating
New Vehicle Break-In
Caution
The vehicle does not need an
elaborate break-in. But it will
perform better in the long run if
you follow these guidelines: . Do not drive at any one
constant speed, fast or slow,
for the first 805 km (500 mi).
Do not make full-throttle
starts. Avoid downshifting to
brake or slow the vehicle.
. Avoid making hard stops for
the first 322 km (200 mi) or
so. During this time the new
brake linings are not yet
broken in. Hard stops with
new linings can mean
premature wear and earlier
replacement. Follow this
(Continued)
Caution (Continued)
breaking-in guideline every
time you get new brake
linings.
Following break-in, engine speed
and load can be gradually
increased.
Ignition Positions
The vehicle has an electronic
keyless ignition with pushbutton
start.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
250 Vehicle Care
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.Fuses Usage
1 –
2 –
3 ABS pump
5 AC DC inverter
6 Rear closure Fuses Usage
7 Left corner lamp
8 Power windows/ Rearview mirror/
Power seats
9 Engine boost
10 Semi-active damping system
11 DC DC Battery 1 Fuses Usage
12 Rear window defogger
13 Heated mirrors
14 –
15 Passive entry/ Passive start
16 Front wipers
17 Passenger power seat
18 ABS valve
19 Driver power seat
21 Sunroof
22 Right corner lamp
23 Auto headlamp leveling
24 –
26 Transmission control module/Ignition
27 Instrument panel/ Ignition
28 Electronic precision shift/Ignition

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
Vehicle Care 251
FusesUsage
29 Rear vision camera/ Ventilation
30 Malfunction indicator lamp/Shift solenoid
32 Canister vent solenoid
33 Front heated seats
34 Rear heated seat/ Vehicle body safety
module/Energy
storage system fan
35 Fog lamps
36 Fuel module
38 –
39 –
40 Steering columnn lock
41 –
43 Heated steering wheel
44 Headlamp leveling/ Rear seat ventilation
45 – Fuses
Usage
46 Engine control module/Ignition
47 –
48 Engine boost/Left cooling fan
49 DC DC battery 2/AWD
50 –
51 –
52 –
53 –
54 –
55 –
56 –
57 Transmission auxiliary pump
58 TRCM
59 High-beam headlamps
60 Cooling fan
61 –
62 – Fuses
Usage
63 –
65 A/C HEV
67 –
68 –
69 Right HID low-beam headlamps
70 Left HID low-beam headlamps
72 Starter pinion
74 Starter motor
75 Engine control module
76 Powertrain –off
engine
77 –
78 Horn
79 Washer pump
81 Transmission control module/ Engine
control module
82 –
83 Ignition coils

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
Vehicle Care 259
Tire Terminology and
Definitions
Air Pressure:The amount of
air inside the tire pressing
outward on each square inch of
the tire. Air pressure is
expressed in kPa (kilopascal)
or psi (pounds per square inch).
Accessory Weight
:The
combined weight of optional
accessories. Some examples of
optional accessories are
automatic transmission, power
windows, power seats, and air
conditioning.
Aspect Ratio
:The relationship
of a tire's height to its width.
Belt
:A rubber coated layer of
cords between the plies and the
tread. Cords may be made from
steel or other reinforcing
materials. Bead
:The tire bead contains
steel wires wrapped by steel
cords that hold the tire onto
the rim.
Bias Ply Tire
:A pneumatic tire
in which the plies are laid at
alternate angles less than
90 degrees to the centerline of
the tread.
Cold Tire Pressure
:The
amount of air pressure in a tire,
measured in kPa (kilopascal)
or psi (pounds per square inch)
before a tire has built up heat
from driving. See Tire Pressure
0 261.
Curb Weight
:The weight of a
motor vehicle with standard and
optional equipment including the
maximum capacity of fuel, oil,
and coolant, but without
passengers and cargo.
DOT Markings
:A code molded
into the sidewall of a tire
signifying that the tire is in
compliance with the U.S. Department of Transportation
(DOT) Motor Vehicle Safety
Standards. The DOT code
includes the Tire Identification
Number (TIN), an alphanumeric
designator which can also
identify the tire manufacturer,
production plant, brand, and
date of production.
GVWR
:Gross Vehicle Weight
Rating. See Vehicle Load Limits
0 170.
GAWR FRT
:Gross Axle Weight
Rating for the front axle. See
Vehicle Load Limits 0170.
GAWR RR
:Gross Axle Weight
Rating for the rear axle. See
Vehicle Load Limits 0170.
Intended Outboard Sidewall
:
The side of an asymmetrical tire
that must always face outward
when mounted on a vehicle.
Kilopascal (kPa)
:The metric
unit for air pressure.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
Index 335
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 228
Accessory Power . . . . . . . . . . . . . . . 178
Adaptive Cruise Control . . . . . . . . 194
Adaptive Forward Lighting (AFL) . . . . . . . . . . . . . . . . . 150
Adaptive Forward Lighting (AFL) Light . . . . . . . . . . . . . . . . . . . . 121
Add-On Electrical Equipment . . . 225
Additional Information
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 330
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . . . . 302
Adjustments Lumbar, Front Seats . . . . . . . . . . . . 52
Air Cleaner/Filter, Engine . . . . . . . 235
Air Conditioning . . . . . . . . . . . . . . . . 156
Air Filter, Passenger Compartment . . . . . . . . . . . . . . . . . 161
Air Intake . . . . . . . . . . . . . . . . . . . . . . . 161
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 160
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . 77
How Does an Airbag
Restrain? . . . . . . . . . . . . . . . . . . . . . 70
Passenger Sensing System . . . . 72 Airbag System (cont'd)
What Makes an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 70
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . . 70
When Should an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 69
Where Are the Airbags? . . . . . . . . 67
Airbags
Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . . . 76
Passenger Status Indicator . . . .113
Readiness Light . . . . . . . . . . . . . . .113
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . 76
System Check . . . . . . . . . . . . . . . . . . 66
Alarm Vehicle Security . . . . . . . . . . . . . . . . 40
Alert Lane Change . . . . . . . . . . . . . . . . . 213
Side Blind Zone (SBZA) . . . . . . 212
All-Season Tires . . . . . . . . . . . . . . . . 255
All-Wheel Drive . . . . . . . . . . . . 186, 244
Antilock Brake System (ABS) . . . 186 Warning Light . . . . . . . . . . . . . . . . . .117
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . 286
Interior . . . . . . . . . . . . . . . . . . . . . . . . 291

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
Index 339
Front SeatsHeated and Ventilated . . . . . . . . . . 55
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217 Additives . . . . . . . . . . . . . . . . . . . . . 218
Economy Driving . . . . . . . . . . . . . . . 24
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 219
Filling the Tank . . . . . . . . . . . . . . . 218
Foreign Countries . . . . . . . . . . . . 218
Gauge . . . . . . . . . . . . . . . . . . . . . . . . .110
Low Fuel Warning Light . . . . . . . 120
Requirements, California . . . . . 217
System Messages . . . . . . . . . . . . 132
Fuses Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 249
Fuses and Circuit Breakers . . . 249
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 252
G
Garage Door Opener . . . . . . . . . . . 145Programming . . . . . . . . . . . . . . . . . 145
Gauges Engine CoolantTemperature . . . . . . . . . . . . . . . . . 111
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . .110
Odometer . . . . . . . . . . . . . . . . . . . . . .110
Speedometer . . . . . . . . . . . . . . . . . .110 Gauges (cont'd)
Tachometer . . . . . . . . . . . . . . . . . . . .110
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . 107
General Information Service and Maintenance . . . . . 296
Towing . . . . . . . . . . . . . . . . . . . . . . . . 220
Vehicle Care . . . . . . . . . . . . . . . . . . 227
Glove Box . . . . . . . . . . . . . . . . . . . . . . . 97
GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . . 315
H
Hazard Warning Flashers . . . . . . . 150
Head Restraints . . . . . . . . . . . . . . . . . 50
Head-up Display . . . . . . . . . . . . . . . . 125
HeadlampsAdaptive ForwardLighting (AFL) . . . . . . . . . . . . . . . 150
Aiming . . . . . . . . . . . . . . . . . . . . . . . . 246
Automatic . . . . . . . . . . . . . . . . . . . . . 149
Bulb Replacement . . . . . . . . . . . . 246
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . 149
Flash-to-Pass . . . . . . . . . . . . . . . . . 149
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . 246
High-Beam On Light . . . . . . . . . . 121
High/Low Beam Changer . . . . . 149 Headlamps (cont'd)
Lamps On Reminder . . . . . . . . . 121
Heated Steering Wheel . . . . . . . . . . . . . . . 102
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Heated Mirrors . . . . . . . . . . . . . . . . . . . 43
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . 177
Heating . . . . . . . . . . . . . . . . . . . . . . . . . 156
High-Beam On Light . . . . . . . . . . . . 121
High-Speed Operation . . . . . . . . . . 262
Hill and Mountain Roads . . . . . . . . 167
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
How to Wear Safety Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . 60
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
I
Ignition Positions . . . . . . . . . . . . . . . 173
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 41
Indicator Vehicle Ahead . . . . . . . . . . . . . . . . .118
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . 80
Infotainment . . . . . . . . . . . . . . . . . . . . 155
Infotainment System . . . . . . . . . . . . 324
Instrument Cluster . . . . . . . . . . . . . . 108