
Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
260 Vehicle Care
FusesUsage
9 Ignition coils–odd (6–cylinder engine)
10 Engine control module–switched
battery
11 6–cylinder Engine: post catalytic
converter/O2 sensor/
Heater/Mass air flow
sensor/FlexFuel
sensor/Secondary
air induction
solenoid
12 Starter
13 Crank for transmission control
module/Fuel pump
power/Chassis
control module
(eAssist)
14 Cabin heater coolant pump (eAssist)/
secondary air
injector/Secondary
air injector with
pressure sensor Fuses
Usage
15 Motor generator unit coolant pump
(eAssist)
16 Run/Crank for eAssist power
inverter module
17 –
18 Sunshade module/ Vehicle air
purification system/
Ventilated seats
20 Heated steering wheel (non eAssist)
21 Rear power windows
22 Sunroof
23 Variable effort steering (if
equipped) or eAssist
power inverter
module
24 Front power windows
25 Rear heated seats Fuses
Usage
26 Antilock brake system pump
27 Electric parking brake
28 Rear window defogger
29 Heated seat/Left power lumbar
30 Heated Seat/Right power pack cooling
fan (eAssist)
31 AWD/Electronic suspension control
32 Body control module 6
33 Memory seat–front
34 Antilock brake system valves
35 Amplifier
36 Adaptive forward lighting (AFL)
motors–battery
37 Right high-beam

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
Vehicle Care 269
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 0271.
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 0171.
GAWR FRT
:Gross Axle Weight
Rating for the front axle. See
Vehicle Load Limits 0171.
GAWR RR
:Gross Axle Weight
Rating for the rear axle. See
Vehicle Load Limits 0171.
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.
Light Truck (LT-Metric) Tire
:A
tire used on light duty trucks and
some multipurpose passenger
vehicles.
Load Index
:An assigned
number ranging from 1 to 279
that corresponds to the load
carrying capacity of a tire.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
Index 355
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 228
Accessory Power . . . . . . . . . . . . . . . 183
Adaptive Cruise Control . . . . . . . . 197
Adaptive Forward Lighting (AFL) . . . . . . . . . . . . . . . . . 150
Adaptive Forward Lighting (AFL) Light . . . . . . . . . . . . . . . . . . . . 120
Add-On Electrical Equipment . . . 225
Additional Information
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 349
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . . . . 320
Adjustments Lumbar, Front Seats . . . . . . . . . . . . 53
Air Cleaner/Filter, Engine . . . . . . . 239
Air Filter, Passenger Compartment . . . . . . . . . . . . . . . . . 162
Air Intake . . . . . . . . . . . . . . . . . . . . . . . 162
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 161
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . 76
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . . . 69
Passenger Sensing System . . . . 71
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 69 Airbag System (cont'd)
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . . 70
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 68
Where Are the Airbags? . . . . . . . . 67
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . . . 76
Passenger Status Indicator . . . .112
Readiness Light . . . . . . . . . . . . . . .112
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . 75
System Check . . . . . . . . . . . . . . . . . . 65
Alarm Vehicle Security . . . . . . . . . . . . . . . . 40
Alert Lane Change . . . . . . . . . . . . . . . . . .211
Side Blind Zone (SBZA) . . . . . . .211
All-Season Tires . . . . . . . . . . . . . . . . 265
All-Wheel Drive . . . . . . . . . . . . 189, 251
Antilock Brake System (ABS) . . . 189 Warning Light . . . . . . . . . . . . . . . . . .117
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . 304
Interior . . . . . . . . . . . . . . . . . . . . . . . . 308
Armrest Rear Seat . . . . . . . . . . . . . . . . . . . . . . 59

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
Index 359
Front SeatsAdjustment . . . . . . . . . . . . . . . . . . . . . 52
Heated and Ventilated . . . . . . . . . . 56
Front Storage . . . . . . . . . . . . . . . . . . . . 98
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215 Additives . . . . . . . . . . . . . . . . . . . . . 216
Economy Driving . . . . . . . . . . . . . . . 25
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 219
Filling the Tank . . . . . . . . . . . . . . . 217
Foreign Countries . . . . . . . . . . . . 216
Gauge . . . . . . . . . . . . . . . . . . . . . . . . .110
Low Fuel Warning Light . . . . . . . 120
Requirements, California . . . . . 216
System Messages . . . . . . . . . . . . 133
Fuses
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 259
Fuses and Circuit Breakers . . . 258
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 262
G
Garage Door Opener . . . . . . . . . . . 145
Programming . . . . . . . . . . . . . . . . . 145
Gauges
Engine CoolantTemperature . . . . . . . . . . . . . . . . . 111
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . .110 Gauges (cont'd)
Odometer . . . . . . . . . . . . . . . . . . . . . 109
Speedometer . . . . . . . . . . . . . . . . . 109
Tachometer . . . . . . . . . . . . . . . . . . . 109
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . 105
General Information Service and Maintenance . . . . . 313
Towing . . . . . . . . . . . . . . . . . . . . . . . . 220
Vehicle Care . . . . . . . . . . . . . . . . . . 227
Glove Box . . . . . . . . . . . . . . . . . . . . . . . 97
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . 334
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . 254
Hazard Warning Flashers . . . . . . . 151
Head Restraints . . . . . . . . . . . . . . . . . 50
Head-up Display . . . . . . . . . . . . . . . . 126
HeadlampsAdaptive ForwardLighting (AFL) . . . . . . . . . . . . . . . 150
Aiming . . . . . . . . . . . . . . . . . . . . . . . . 254
Automatic . . . . . . . . . . . . . . . . . . . . . 149
Bulb Replacement . . . . . . . . . . . . 254
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . 149
Flash-to-Pass . . . . . . . . . . . . . . . . . 149 Headlamps (cont'd)
High Intensity Discharge
(HID) Lighting . . . . . . . . . . . . . . . 254
High-Beam On Light . . . . . . . . . . 120
High/Low Beam Changer . . . . . 149
Lamps On Reminder . . . . . . . . . 121
Heated Steering Wheel . . . . . . . . . . . . . . . 101
Heated and Ventilated Front
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Heated Mirrors . . . . . . . . . . . . . . . . . . . 44
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . 181
High Voltage Devices and
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 257
High-Beam On Light . . . . . . . . . . . . 120
High-Speed Operation . . . . . . . . . . 272
Hill and Mountain Roads . . . . . . . . 168
Hill Start Assist (HSA) . . . . . . . . . . 192
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
How to Wear Safety Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . 60
I
Ignition Positions . . . . . . . . . . 175, 176
Ignition Transmission LockCheck . . . . . . . . . . . . . . . . . . . . . . . . . 252
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 41

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
Index 361
Lights (cont'd)Traction Control System
(TCS)/StabiliTrak
®. . . . . . . . . . .118
Traction Off . . . . . . . . . . . . . . . . . . . .117
Limited-Slip Differential . . . . . . . . . 194
Locks Automatic Door . . . . . . . . . . . . . . . . . 37
Delayed Locking . . . . . . . . . . . . . . . . 36
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Lockout Protection . . . . . . . . . . . . . . 37
Power Door . . . . . . . . . . . . . . . . . . . . . 36
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Loss of Control . . . . . . . . . . . . . . . . . 167
Low Fuel Warning Light . . . . . . . . . 120
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . . 84
Lumbar Adjustment . . . . . . . . . . . . . . 53
Front Seats . . . . . . . . . . . . . . . . . . . . . 53
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . 325
Maintenance and Care
Additional . . . . . . . . . . . . . . . . . . . . . 320
Maintenance Schedule . . . . . . . . . 314 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 323
Malfunction Indicator Lamp . . . . . 114 Manual Mode . . . . . . . . . . . . . . . . . . . 188
Memory Features . . . . . . . . . . . . . . . . 12
Memory Seats . . . . . . . . . . . . . . . . . . . 55
Messages
Airbag System . . . . . . . . . . . . . . . . 137
Battery Voltage andCharging . . . . . . . . . . . . . . . . . . . . 130
Brake System . . . . . . . . . . . . . . . . 130
Compass . . . . . . . . . . . . . . . . . . . . . 131
Door Ajar . . . . . . . . . . . . . . . . . . . . . 132
Engine Cooling System . . . . . . . 132
Engine Oil . . . . . . . . . . . . . . . . . . . . 133
Engine Power . . . . . . . . . . . . . . . . 133
Fuel System . . . . . . . . . . . . . . . . . . 133
Key and Lock . . . . . . . . . . . . . . . . . 133
Lamp . . . . . . . . . . . . . . . . . . . . . . . . . 134
Object Detection System . . . . . 134
Ride Control System . . . . . . . . . . 136
Security . . . . . . . . . . . . . . . . . . . . . . 137
Service Vehicle . . . . . . . . . . . . . . . 137
Starting the Vehicle . . . . . . . . . . . 137
Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Transmission . . . . . . . . . . . . . . . . . 138
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 130
Vehicle Speed . . . . . . . . . . . . . . . . 138
Window . . . . . . . . . . . . . . . . . . . . . . . 138 Mirrors
Automatic Dimming
Rearview . . . . . . . . . . . . . . . . . . . . . . 45
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 43
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 44
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 44
Manual Rearview . . . . . . . . . . . . . . . 44
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Tilt in Reverse . . . . . . . . . . . . . . . . . . 44
Mirrors, Interior Rearview . . . . . . . . 44
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 273
N
NavigationOnStar®. . . . . . . . . . . . . . . . . . . . . . 346
Net, Convenience . . . . . . . . . . . . . . . 99
New Vehicle Break-In . . . . . . . . . . . 174
O
Object Detection System Messages . . . . . . . . . . . . . . . . . . . . . 134
Odometer . . . . . . . . . . . . . . . . . . . . . . . 109
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 167
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 236
Engine Oil Life System . . . . . . . 238
Messages . . . . . . . . . . . . . . . . . . . . 133

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
362 Index
Oil (cont'd)Pressure Light . . . . . . . . . . . . . . . . .119
Older Children, Restraints . . . . . . . 77
Online Owner Center . . . . . . . . . . . 333
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 343
OnStar
®Additional
Information . . . . . . . . . . . . . . . . . . . . 349
OnStar
®Connections . . . . . . . . . . . 347
OnStar®Diagnostics . . . . . . . . . . . . 349
OnStar®Emergency . . . . . . . . . . . . 346
OnStar®Navigation . . . . . . . . . . . . . 346
OnStar®Overview . . . . . . . . . . . . . . 345
OnStar®Security . . . . . . . . . . . . . . . 346
Operating Mode
Overheated EngineProtection . . . . . . . . . . . . . . . . . . . 246
Ordering Service Publications . . . . . . . . . . 340
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . 103
Overheated Engine Protection Operating Mode . . . . 246
Overheating, Engine . . . . . . . . . . . . 245
P
Park
Shifting Into . . . . . . . . . . . . . . . . . . . 183
Shifting Out of . . . . . . . . . . . . . . . . 184 Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . . . 190
Brake and P (Park)
Mechanism Check . . . . . . . . . . 252
Over Things That Burn . . . . . . . 185
Parking or Backing Assistance Systems . . . . . . . . . . 205
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . . 112
Passenger Compartment Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Passenger Sensing System . . . . . 71
Perchlorate Materials Requirements, California . . . . . . 228
Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . 139
Power Door Locks . . . . . . . . . . . . . . . . . . . . . 36
Flows . . . . . . . . . . . . . . . . . . . . . . . . . 122
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Outlets . . . . . . . . . . . . . . . . . . . . . . . 103
Protection, Battery . . . . . . . . . . . . 155
Retained Accessory (RAP) . . . 183
Seat Adjustment . . . . . . . . . . . . . . . . 53
Steering Fluid . . . . . . . . . . . . . . . . . 247
Windows . . . . . . . . . . . . . . . . . . . . . . . 45
Pregnancy, Using Safety Belts . . . 64 Privacy
Vehicle Data Recording . . . . . . . 342
Program Courtesy Transportation . . . . . . 336
Proposition 65 Warning,
California . . . . . . . . . 227, 250, 297, 298
R
Radio Frequency Statement . . . . 341
Reading Lamps . . . . . . . . . . . . . . . . . 153
Rear Seat Armrest . . . . . . . . . . . . . . . 59
Rear Seats . . . . . . . . . . . . . . . . . . . . . . 58
Rear Window Sunshade . . . . . . . . . 47
Rearview Mirrors . . . . . . . . . . . . . . . . 44
Automatic Dimming . . . . . . . . . . . . . 45
Reclining Seatbacks . . . . . . . . . . . . . 54
Recommended Fluids and Lubricants . . . . . . . . . . . . . . . . . . . . . 323
Records Maintenance . . . . . . . . . . . . . . . . . . 325
Recreational Vehicle Towing . . . . 301
Reimbursement Program,
GM Mobility . . . . . . . . . . . . . . . . . . . 334
Remote Keyless Entry (RKE) System . . . . . . . . . . . . . . . . . . . . . . . . . 28
Remote Vehicle Start . . . . . . . . . . . . 34
Replacement Bulbs . . . . . . . . . . . . . 257

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
Index 363
Replacement PartsAirbags . . . . . . . . . . . . . . . . . . . . . . . . . 77
Maintenance . . . . . . . . . . . . . . . . . . 324
Replacing Airbag System . . . . . . . . 77
Replacing LATCH System Parts after a Crash . . . . . . . . . . . . . 91
Replacing Safety Belt System
Parts after a Crash . . . . . . . . . . . . . 65
Reporting Safety Defects Canadian Government . . . . . . . . 342
General Motors . . . . . . . . . . . . . . . 342
U.S. Government . . . . . . . . . . . . . 341
Restraints Where to Put . . . . . . . . . . . . . . . . . . . 83
Retained Accessory Power (RAP) . . . . . . . . . . . . . . . . . . 183
Reverse Tilt Mirrors . . . . . . . . . . . . . . 44
Ride Control Systems Enhanced TractionSystem (ETS) . . . . . . . . . . . . . . . 194
Messages . . . . . . . . . . . . . . . . . . . . 136
Selective . . . . . . . . . . . . . . . . . . . . . 194
Roads Driving, Wet . . . . . . . . . . . . . . . . . . 168
Roadside Assistance
Program . . . . . . . . . . . . . . . . . . . . . . . 334
Roof Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . 47 Rotation, Tires . . . . . . . . . . . . . . . . . . 277
Routing, Engine Drive Belt . . . . . . 329
Running the Vehicle While
Parked . . . . . . . . . . . . . . . . . . . . . . . . 186
S
Safety Belts . . . . . . . . . . . . . . . . . . . . . 59Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Extender . . . . . . . . . . . . . . . . . . . . . . . . 64
How to Wear Safety BeltsProperly . . . . . . . . . . . . . . . . . . . . . . . 60
Lap-Shoulder Belt . . . . . . . . . . . . . . 61
Reminders . . . . . . . . . . . . . . . . . . . . . 111
Replacing after a Crash . . . . . . . . 65
Use During Pregnancy . . . . . . . . . . 64
Safety Defects Reporting Canadian Government . . . . . . . . 342
General Motors . . . . . . . . . . . . . . . 342
U.S. Government . . . . . . . . . . . . . 341
Safety Locks . . . . . . . . . . . . . . . . . . . . . 37
Safety System Check . . . . . . . . . . . . 64
Scheduling Appointments . . . . . . . 336
Sealant Kit, Tire . . . . . . . . . . . . . . . . 285
Seats Adjustment, Front . . . . . . . . . . . . . . . 52
Head Restraints . . . . . . . . . . . . . . . . 50
Heated and Ventilated Front . . . . 56
Lumbar Adjustment, Front . . . . . . 53
Memory . . . . . . . . . . . . . . . . . . . . . . . . . 55 Seats (cont'd)
Power Adjustment, Front . . . . . . . 53
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Reclining Seatbacks . . . . . . . . . . . . 54
Securing Child Restraints . . . . 91, 93
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Messages . . . . . . . . . . . . . . . . . . . . 137
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 346
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 40
Vehicle Alarm . . . . . . . . . . . . . . . . . . . 40
Selective Ride Control . . . . . . . . . . 194
Service . . . . . . . . . . . . . . . . . . . . . . . . . 162 Accessories and
Modifications . . . . . . . . . . . . . . . . 228
Doing Your Own Work . . . . . . . . 229
Engine Soon Light . . . . . . . . . . . . .114
Maintenance Records . . . . . . . . 325
Maintenance, General Information . . . . . . . . . . . . . . . . . . 313
Parts Identification Label . . . . . 326
Publications Ordering Information . . . . . . . . . . . . . . . . . . 340
Scheduling Appointments . . . . . 336
Vehicle Messages . . . . . . . . . . . . 137
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . 116