
Black plate (41,1)Buick LaCrosse Owner Manual - 2011
Vehicle Care 10-41
Mini Fuses Usage10 Engine Control
Module
11 Post Catalytic
Converter Oxygen
Sensor Heater
13 Trans Ignition/Fuel
System Control
Module
16 MAF
17 Airbag Module
18 SBZ Ignition
23 Variable Effort
Steering
29 Power Lumbar, Left
32 Body Control
Module
33 Heated Seat
34 Antilock Brake
System Valves
35 Amplifier Mini Fuses Usage
36 AFL Ignition
37 Right High Beam
38 Left High Beam
46 Cooling Fan Relay
47 Pre Catalytic
Converter Oxygen
Sensor Heater
48 Fog Lamps
49 Right High Intensity
Discharge
Headlamp
50 Left High Intensity
Discharge
Headlamp
51 Horn
52 Cluster Ignition
53 Inside Rearview
Mirror, Rear
Vision Camera,
Vacuum Pump Mini Fuses Usage
54 Heating, Ventilation
and Air Conditioning
55 Outside Rearview
Mirror, Universal
Garage Door
Opener, Window
Switch
56 Windshield Washer
60 Heated Mirror
62 Canister Vent
64 AFL Battery
65 Theft‐Deterrent Horn
67 Fuel System Control
Module
69 Regulated Voltage
Control Sensor
70 Ultrasonic Parking
Assist/Side
Blind Zone

Black plate (5,1)Buick LaCrosse Owner Manual - 2011
INDEX i-5
Electronic Stability ControlIndicator Light . . . . . . . . . . . . . . . . 5-22
Engine Air Cleaner/Filter . . . . . . . . . . . 10-15
Check and Service EngineSoon Light . . . . . . . . . . . . . . . . . . 5-17
Compartment Overview . . . . . . . 10-6
Coolant . . . . . . . . . . . . . . . . . . . . . 10-18
Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 5-13
Cooling System . . . . . . . . . . . . . 10-17
Cooling System Messages . . . 5-35
Drive Belt Routing . . . . . . . . . . . . 12-4
Exhaust . . . . . . . . . . . . . . . . . . . . . . 9-27
Heater . . . . . . . . . . . . . . . . . . . . . . . . 9-23
Overheated Protection
Operating Mode . . . . . . . . . . . 10-22
Overheating . . . . . . . . . . . . . . . . 10-21
Power Messages . . . . . . . . . . . . . 5-36
Pressure Light . . . . . . . . . . . . . . . . 5-23
Running While Parked . . . . . . . . 9-28
Starting . . . . . . . . . . . . . . . . . . . . . . . 9-20 Engine Oil
Life System . . . . . . . . . . . . . . . . . 10-13
Messages . . . . . . . . . . . . . . . . . . . . 5-35
Entry Lighting . . . . . . . . . . . . . . . . . . . 6-6
Equipment, Towing . . . . . . . . . . . . 9-61
Event Data Recorders . . . . . . . . 13-18
Exit Lighting . . . . . . . . . . . . . . . . . . . . 6-6
Extender, Safety Belt . . . . . . . . . . 3-27
Exterior Lamp Controls . . . . . . . . . 6-1
Exterior Lamps Off Reminder . . . 6-2
F
Features Memory . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Filter, Engine Air Cleaner . . . . . . . . . 10-15
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 6-2
Flashers, Hazard Warning . . . . . . 6-4
Flat Tire . . . . . . . . . . . . . . . . . . . . . . 10-70 Changing . . . . . . . . . . . . . . . . . . . 10-79
Floor Mats . . . . . . . . . . . . . . . . . . .10-100 Fluid
Automatic Transmission . . . . 10-15
Brakes . . . . . . . . . . . . . . . . . . . . . . 10-25
Power Steering . . . . . . . . . . . . . 10-23
Washer . . . . . . . . . . . . . . . . . . . . . 10-24
Fog Lamps Bulb Replacement . . . . . . . . . . . . . 6-5
Folding Mirrors . . . . . . . . . . . . . . . . 2-17
Front Fog Lamps Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25
Front Seats
Adjustment . . . . . . . . . . . . . . . . . . . . 3-4
Heated and Ventilated . . . . . . . . 3-10
Front Storage . . . . . . . . . . . . . . . . . . . 4-1
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-50 Additives . . . . . . . . . . . . . . . . . . . . . 9-52
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 9-54
Filling the Tank . . . . . . . . . . . . . . . 9-53
Fuels in Foreign Countries . . . . 9-52
Gasoline Specifications . . . . . . . 9-51

Black plate (7,1)Buick LaCrosse Owner Manual - 2011
INDEX i-7
Heated and Ventilated FrontSeats . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Heated Mirrors . . . . . . . . . . . . . . . . . 2-17
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . 9-23
Heating and Air Conditioning . . . 8-1
High-Beam On Light . . . . . . . . . . . 5-24
Highway Hypnosis . . . . . . . . . . . . . . 9-8
Hill and Mountain Roads . . . . . . . . 9-8
Hill Start Assist (HSA) . . . . . . . . . 9-35
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
How to Wear Safety Belts Properly . . . . . . . . . . . . . . . . . . . . . . 3-17I
Ignition Positions . . . . . . . . 9-17, 9-19
Ignition Transmission LockCheck . . . . . . . . . . . . . . . . . . . . . . . 10-28
Immobilizer . . . . . . . . . . . . . . . . . . . . 2-14
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . 3-46
Infotainment . . . . . . . . . . . . . . . . . . . . 7-1
Instrument Cluster . . . . . . . . . . . . . 5-10
Introduction . . . . . . . . . . . . . . . . . . . . . . . iii
J
Jump Starting . . . . . . . . . . . . . . . . . 10-86
K
Key and Lock Messages . . . . . . . 5-36
Keyless Entry Remote (RKE) System . . . . . . . . 2-4
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
L
Labeling, Tire Sidewall . . . . . . . . 10-48
Lamp Messages . . . . . . . . . . . . . . . 5-37
Lamps Daytime Running (DRL) . . . . . . . 6-3
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Exterior Controls . . . . . . . . . . . . . . . 6-1
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . . 6-2
Headlamps, Front Turn Signal and Parking
Lamps . . . . . . . . . . . . . . . . . . . . 10-34
License Plate . . . . . . . . . . . . . . . 10-36
Malfunction Indicator . . . . . . . . . 5-17
Reading . . . . . . . . . . . . . . . . . . . . . . . 6-5
Sun Visor . . . . . . . . . . . . . . . . . . . . . . 6-5
Lap-Shoulder Belt . . . . . . . . . . . . . 3-22

Black plate (9,1)Buick LaCrosse Owner Manual - 2011
INDEX i-9
Messages (cont.)Lamp . . . . . . . . . . . . . . . . . . . . . . . . . 5-37
Object Detection System . . . . . 5-37
Ride Control System . . . . . . . . . . 5-37
Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-38
Transmission . . . . . . . . . . . . . . . . . 5-38
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 5-33
Window . . . . . . . . . . . . . . . . . . . . . . . 5-39
Mirrors
Folding . . . . . . . . . . . . . . . . . . . . . . . 2-17
Heated . . . . . . . . . . . . . . . . . . . . . . . 2-17
Manual Rearview . . . . . . . . . . . . . 2-18
Park Tilt . . . . . . . . . . . . . . . . . . . . . . 2-17
Power . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . 10-56
N
NavigationVehicle Data Recording
and Privacy . . . . . . . . . . . . . . . 13-19
Net, Convenience . . . . . . . . . . . . . . 4-2
New Vehicle Break-In . . . . . . . . . . 9-16
O
Object Detection System Messages . . . . . . . . . . . . . . . . . . . . 5-37
Object Detection, Side Blind Zone Alert (SBZA) . . . . . . . . . . . 9-44
Odometer . . . . . . . . . . . . . . . . . . . . . . 5-11
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . . 9-6
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 10-9
Engine Oil Life System . . . . . 10-13
Messages . . . . . . . . . . . . . . . . . . . . 5-35
Pressure Light . . . . . . . . . . . . . . . . 5-23
Older Children, Restraints . . . . . 3-44
Online Owner Center . . . . . . . . . . 13-7
OnStar
®System . . . . . . . . . . . . . . . 1-24
Operation, Infotainment System . . . . . . . . . . . . . . . . . . . . . . . . 7-7
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Overheated Engine Protection
Operating Mode . . . . . . . . . . . . . 10-22
Overheating, Engine . . . . . . . . . . 10-21
Overview, Infotainment System . . . . . . . . . . . . . . . . . . . . 7-3, 7-5
P
ParkShifting Into . . . . . . . . . . . . . . . . . . . 9-25
Shifting Out of . . . . . . . . . . . . . . . . 9-26
Park Tilt Mirrors . . . . . . . . . . . . . . . . 2-17
Parking Assist, Ultrasonic . . . . . . . . . . . . . 9-42
Brake . . . . . . . . . . . . . . . . . . . . . . . . . 9-33
Brake and P (Park)
Mechanism Check . . . . . . . . 10-29
Over Things That Burn . . . . . . . 9-27
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . 5-15
Passenger Compartment Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8
Passenger Sensing System . . . 3-37
Perchlorate Materials
Requirements, California . . . . . 10-3
Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . 5-39
Phone Bluetooth . . . . . . . . . 7-46, 7-48, 7-53

Black plate (10,1)Buick LaCrosse Owner Manual - 2011
i-10 INDEX
PowerDoor Locks . . . . . . . . . . . . . . . . . . . 2-11
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Outlets . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Protection, Battery . . . . . . . . . . . . . 6-7
Retained Accessory (RAP) . . . 9-24
Seat Adjustment . . . . . . . . . . . . . . . 3-5
Steering Fluid . . . . . . . . . . . . . . . 10-23
Windows . . . . . . . . . . . . . . . . . . . . . 2-19
Pregnancy, Using Safety Belts . . . . . . . . . . . . . . . . . . . . . . . . . 3-27
Privacy Radio FrequencyIdentification (RFID) . . . . . . . 13-19
Program Courtesy Transportation . . . . .13-11
Proposition 65 Warning, California . . . . . . . . . . . . . . . . . . . . . 10-3R
Radio FrequencyIdentification (RFID) . . . . . . . . 13-19
Statement . . . . . . . . . . . . . . . . . . 13-20
Radios AM-FM Radio . . . . . . . . . . . . . . . . . 7-12
CD/DVD Player . . . . . . . . . . . . . . . 7-23
Reception . . . . . . . . . . . . . . . . . . . . 7-19
Satellite . . . . . . . . . . . . . . . . . . . . . . . 7-15
Reading Lamps . . . . . . . . . . . . . . . . . 6-5
Rear Seat Entertainment System . . . . . . . . . . . . . . . . . . . . . . . 7-36
Rear Seat Pass-Through Door . . . . . . . . . . 3-13
Rear Seats . . . . . . . . . . . . . . . . . . . . 3-11
Rear Vision Camera (RVC) . . . . 9-46
Rearview Mirrors . . . . . . . . . . . . . . 2-18
Reclining Seatbacks . . . . . . . . . . . . 3-8 Recommended Fluids and
Lubricants . . . . . . . . . . . . . . . . . . . . 11-7
Recommended Fuel . . . . . . . . . . . 9-50
Records Maintenance . . . . . . . . . . . . . . . . .11-10
Recreational Vehicle Towing . . . . . . . . . . . . . . . . . . . . . . 10-89
Reimbursement Program, GM Mobility . . . . . . . . . . . . . . . . . . 13-8
Remote Keyless Entry (RKE) System . . . . . . . . . . . . . 2-3, 2-4
Remote Vehicle Start . . . . . . . . . . . 2-8
Replacement Bulbs . . . . . . . . . . . 10-37
Replacement Parts Airbags . . . . . . . . . . . . . . . . . . . . . . . 3-43
Maintenance . . . . . . . . . . . . . . . . . . 11-9
Replacing Airbag System . . . . . . 3-43
Replacing LATCH System Parts After a Crash . . . . . . . . . . . 3-61