2019 BUICK LACROSSE engine coolant

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
264 Vehicle Care
FusesUsage
56 –
57 Transmission auxiliary pump
58 Transmission range control module
59 High-beam headlamps
60 Cooling fan
61 –
62 –
63 –
65 Air conditioning (HEV)
67 –
68 –
69 Right HID low-beam headlamps
70 Left HID low-beam headlamps
72 Starter pinion
74 Starter motor Fuses
Usage
75 Engine control module
76 Powertrain –off
engine
77 –
78 Horn
79 Washer pump
81 Transmission control module/Engine
control module
82 –
83 Ignition coil –odd
84 Ignition coil –even
85 Shunt
86 Shunt
87 –
88 Aeroshutter
89 Headlamp washer
91 – Fuses
Usage
92 Traction power inverter module/
Motor generator unit
coolant motor
93 Headlamp leveling
95 –
96 –
97 –
99 Coolant pump
Relays Usage
4 –
20 Rear defogger
25 Front wiper control
31 Run/Crank
37 Front wiper speed
42 Transmission auxiliary pump
64 Air conditioning control
66 Powertrain

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
320 Service and Maintenance
Maintenance
Schedule
Owner Checks and Services
At Each Fuel Stop
.Check the engine oil level. See
Engine Oil 0241.
Once a Month
. Check the tire inflation
pressures. See Tire Pressure
0 275.
. Inspect the tires for wear. See
Tire Inspection 0280.
. Check the windshield washer
fluid level. See Washer Fluid
0 252.
Engine Oil Change
When the CHANGE ENGINE OIL
SOON message displays, have the
engine oil and filter changed within
the next 1 000 km/600 mi. If driven
under the best conditions, the
engine oil life system may not
indicate the need for vehicle service
for up to a year. The engine oil and filter must be changed at least once
a year and the oil life system must
be reset. Your trained dealer
technician can perform this work.
If the engine oil life system is reset
accidentally, service the vehicle
within 5 000 km/3,000 mi since the
last service. Reset the oil life
system when the oil is changed.
See
Engine Oil Life System 0244.
Air Conditioning Desiccant
(Replace Every Seven Years)
The air conditioning system requires
maintenance every seven years.
This service requires replacement of
the desiccant to help the longevity
and efficient operation of the air
conditioning system. This service
can be complex. See your dealer.
Tire Rotation and Required
Services Every 12 000 km/
7,500 mi
Rotate the tires, if recommended for
the vehicle, and perform the
following services. See Tire
Rotation 0281. .
Check engine oil level and oil
life percentage. If needed,
change engine oil and filter, and
reset oil life system.
See Engine Oil 0241 and
Engine Oil Life System 0244.
. Check engine coolant level. See
Cooling System 0246.
. Check windshield washer fluid
level. See Washer Fluid 0252.
. Check tire inflation pressures.
See Tire Pressure 0275.
. Inspect tire wear. See Tire
Inspection 0280.
. Visually check for fluid leaks.
. Inspect engine air cleaner filter.
See Engine Air Cleaner/Filter
0 245.
. Inspect brake system. See
Exterior Care 0309.
. Visually inspect steering,
suspension, and chassis
components for damage,
including cracks or tears in the
rubber boots, loose or missing

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
Service and Maintenance 329
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
UsageFluid/Lubricant
Automatic Transmission DEXRON-VI Automatic Transmission Fluid. Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant.
See Cooling System 0246.
Engine Oil Engine oil meeting the dexos1 specification of the proper SAE viscosity
grade. ACDelco dexos1 full synthetic is recommended. See Engine Oil
0 241.
Hood Latch Assembly, Secondary Latch, Pivots, Spring Anchor, and
Release Pawl Lubriplate Lubricant Aerosol (GM Part No. 89021668, in
Canada 89021674) or lubricant meeting requirements of NLGI #2,
Category LB or GC-LB.
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid (GM Part No. 19353126, in Canada 19353127).
Key Lock Cylinders, Hood and Door Hinges Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in
Canada 10953474).
Weatherstrip Conditioning Weatherstrip lubricant (GM Part No. 3634770, in Canada 10953518) or equivalent.
Windshield Washer Automotive windshield washer fluid that meets regional freeze protection requirements.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
Index 363
Child RestraintsInfants and Young Children . . . . . 85
Lower Anchors and Tethers
for Children . . . . . . . . . . . . . . . . . . . 90
Older Children . . . . . . . . . . . . . . . . . . 83
Securing . . . . . . . . . . . . . . . . . . . . 97, 99
Systems . . . . . . . . . . . . . . . . . . . . . . . . 87
Circuit Breakers . . . . . . . . . . . . . . . . 261
Cleaning Exterior Care . . . . . . . . . . . . . . . . . 309
Interior Care . . . . . . . . . . . . . . . . . . 313
Climate Control Systems Dual Automatic . . . . . . . . . . . . . . . 157
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Cluster, Instrument . . . . . . . . . . . . . 114
Collision Damage Repair . . . . . . . 342
Compact Spare Tire . . . . . . . . . . . . 300
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . 102
Compass . . . . . . . . . . . . . . . . . . . . . . . 108
Compressor Kit, Tire Sealant . . . 289
Connected Services Connections . . . . . . . . . . . . . . . . . . 358
Diagnostics . . . . . . . . . . . . . . . . . . . 360
Navigation . . . . . . . . . . . . . . . . . . . . 357
Connections Connected Services . . . . . . . . . . 358 Control
Traction and Electronic
Stability . . . . . . . . . . . . . . . . . . . . . 196
Control of a Vehicle . . . . . . . . . . . . . 166
Convenience Net . . . . . . . . . . . . . . . 103
Convex Mirrors . . . . . . . . . . . . . . . . . . 45
Coolant Engine Temperature Gauge . . .119
Engine TemperatureWarning Light . . . . . . . . . . . . . . . 127
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . 157
Cooling System . . . . . . . . . . . . . . . . . 246
Cornering Lamps . . . . . . . . . . . . . . . 152
Courtesy Transportation
Program . . . . . . . . . . . . . . . . . . . . . . . 341
Cruise Control . . . . . . . . . . . . . . . . . . 199
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Cruise Control, Adaptive . . . . . . . . 201
Cupholders . . . . . . . . . . . . . . . . . . . . . 102
Customer Assistance . . . . . . . . . . . 338 Offices . . . . . . . . . . . . . . . . . . . . . . . . 337
Text Telephone (TTY)
Users . . . . . . . . . . . . . . . . . . . . . . . 338
Customer Information Publications Ordering
Information . . . . . . . . . . . . . . . . . . 344
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . 335D
Damage Repair, Collision . . . . . . . 342
Danger, Warning, and Caution . . . . 2
Data CollectionInfotainment System . . . . . . . . . . 348
OnStar . . . . . . . . . . . . . . . . . . . . . . . 348
Data Recorders, Event . . . . . . . . . 347
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 150
Defensive Driving . . . . . . . . . . . . . . . 166
Delayed Locking . . . . . . . . . . . . . . . . . 39
Diagnostics
Connected Services . . . . . . . . . . 360
Distracted Driving . . . . . . . . . . . . . . . 165
Dome Lamps . . . . . . . . . . . . . . . . . . . 153
Door
Ajar Light . . . . . . . . . . . . . . . . . . . . . 130
Delayed Locking . . . . . . . . . . . . . . . . 39
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Power Locks . . . . . . . . . . . . . . . . . . . . 39
Drive Belt Routing, Engine . . . . . . 334
Drive Systems All-Wheel Drive . . . . . . . . . . 192, 256
Driver Assistance Systems . . . . . 208
Driver Efficiency Gauge . . . . . . . . 118
Driver Information
Center (DIC) . . . . . . . . . . . . . . . . . . 131

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
364 Index
DrivingAssistance Systems . . . . . . . . . . 214
Characteristics and
Towing Tips . . . . . . . . . . . . . . . . . 227
Defensive . . . . . . . . . . . . . . . . . . . . . 166
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 166
For Better Fuel Economy . . . . . . . 26
Hill and Mountain Roads . . . . . . 169
If the Vehicle is Stuck . . . . . . . . . 171
Loss of Control . . . . . . . . . . . . . . . 168
Off-Road Recovery . . . . . . . . . . . 168
Vehicle Load Limits . . . . . . . . . . . 172
Wet Roads . . . . . . . . . . . . . . . . . . . 169
Winter . . . . . . . . . . . . . . . . . . . . . . . . 170
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . 157
E
Electric Parking Brake . . . . . . . . . . 193
Electric Parking Brake Light . . . . 125
Electrical Equipment,
Add-On . . . . . . . . . . . . . . . . . . . . . . . 233
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 261
Fuses and Circuit Breakers . . . 261
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 265 Electrical System (cont'd)
Overload . . . . . . . . . . . . . . . . . . . . . 260
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . 350
Energy Information . . . . . . . . . . . . . 131
Engine Air Cleaner/Filter . . . . . . . . . . . . . 245
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 122
Compartment Overview . . . . . . . 238
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . .119
Coolant Temperature Warning Light . . . . . . . . . . . . . . . 127
Cooling System . . . . . . . . . . . . . . . 246
Drive Belt Routing . . . . . . . . . . . . 334
Exhaust . . . . . . . . . . . . . . . . . . . . . . 186
Heater . . . . . . . . . . . . . . . . . . . . . . . . 180
Oil Life System . . . . . . . . . . . . . . . 244
Oil Pressure Light . . . . . . . . . . . . 128
Overheated Protection Operating Mode . . . . . . . . . . . . . 252
Overheating . . . . . . . . . . . . . . . . . . 250
Power Messages . . . . . . . . . . . . . 138
Running While Parked . . . . . . . . 186
Starting . . . . . . . . . . . . . . . . . . . . . . . 177
Engine Oil Temperature Gauge . . . . . . . . . . .118 Entry Lighting . . . . . . . . . . . . . . . . . . . 154
Equipment, Towing . . . . . . . . . . . . . 232
Event Data Recorders . . . . . . . . . . 347
Exit Lighting . . . . . . . . . . . . . . . . . . . . 154
Extended Parking . . . . . . . . . . . . . . . 185
Extender, Seat Belt . . . . . . . . . . . . . . 69
Exterior Lamp Controls . . . . . . . . . 149
Exterior Lamps Off Reminder . . . 150
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . 155
F
FeaturesMemory . . . . . . . . . . . . . . . . . . . . . . . . . 11
Filter, Engine Air Cleaner . . . . . . . . . . . 245
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 150
Flashers, Hazard Warning . . . . . . 151
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 287
Changing . . . . . . . . . . . . . . . . . . . . . 296
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 317
Fluid
Automatic Transmission . . . . . . 245
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 254
Washer . . . . . . . . . . . . . . . . . . . . . . . 252
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 152
Folding Mirrors . . . . . . . . . . . . . . . . . . 46
Forward Automatic Braking . . . . . 216

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
Index 365
Forward Collision Alert(FCA) System . . . . . . . . . . . . . . . . . 214
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 345
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Front Pedestrian Braking
(FPB) System . . . . . . . . . . . . . . . . . 218
Front Seats Heated and Ventilated . . . . . . . . . . 59
Fuel
Additives . . . . . . . . . . . . . . . . . . . . . 225
Economy Driving . . . . . . . . . . . . . . . 26
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 227
Filling the Tank . . . . . . . . . . . . . . . 225
Foreign Countries . . . . . . . . . . . . 225
Gauge . . . . . . . . . . . . . . . . . . . . . . . . .117
Low Fuel Warning Light . . . . . . . 129
Management, Active . . . . . . . . . . 185
Prohibited Fuels . . . . . . . . . . . . . . 224
Recommended . . . . . . . . . . . . . . . 224
Top Tier . . . . . . . . . . . . . . . . . . . . . . 224
Fuses Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 261
Fuses and Circuit Breakers . . . 261 Fuses (cont'd)
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 265
G
Garage Door Opener . . . . . . . . . . . 145Programming . . . . . . . . . . . . . . . . . 145
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 257
Gauges Driver Efficiency . . . . . . . . . . . . . . .118
Engine Coolant
Temperature . . . . . . . . . . . . . . . . .119
Engine Oil Temperature . . . . . . . .118
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . .117
Odometer . . . . . . . . . . . . . . . . . . . . . .116
Speedometer . . . . . . . . . . . . . . . . . .116
Tachometer . . . . . . . . . . . . . . . . . . . .116
Voltmeter . . . . . . . . . . . . . . . . . . . . . .119
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . .113
General Information Service and Maintenance . . . . . 318
Towing . . . . . . . . . . . . . . . . . . . . . . . . 227
Vehicle Care . . . . . . . . . . . . . . . . . . 235
Glove Box . . . . . . . . . . . . . . . . . . . . . . 102
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . 339
H
Hazard Warning Flashers . . . . . . . 151
Head Restraints . . . . . . . . . . . . . . . . . 53
Head-up Display . . . . . . . . . . . . . . . . 134
HeadlampsAdaptive ForwardLighting (AFL) . . . . . . . . . . . . . . . 151
Aiming . . . . . . . . . . . . . . . . . . . . . . . . 258
Automatic . . . . . . . . . . . . . . . . . . . . . 150
Bulb Replacement . . . . . . . . . . . . 258
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . 150
Flash-to-Pass . . . . . . . . . . . . . . . . . 150
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . 258
High-Beam On Light . . . . . . . . . . 129
High/Low Beam Changer . . . . . 150
Lamps On Reminder . . . . . . . . . 130
Heated
Steering Wheel . . . . . . . . . . . . . . . 106
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Heated Mirrors . . . . . . . . . . . . . . . . . . . 46
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . 180
Heating . . . . . . . . . . . . . . . . . . . . . . . . . 157
High-Beam On Light . . . . . . . . . . . . 129
High-Speed Operation . . . . . . . . . . 276

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
366 Index
Hill and Mountain Roads . . . . . . . . 169
Hill Start Assist (HSA) . . . . . . . . . . 195
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
How to Wear Seat BeltsProperly . . . . . . . . . . . . . . . . . . . . . . . . 64
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
I
Ignition Positions . . . . . . . . . . . . . . . 176
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 44
Indicator
Vehicle Ahead . . . . . . . . . . . . . . . . 126
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . 85
Information Energy . . . . . . . . . . . . . . . . . . . . . . . 131
Publication Ordering . . . . . . . . . . 344
Infotainment . . . . . . . . . . . . . . . . . . . . 156
Infotainment System . . . . . . . . . . . . 348
Instrument Cluster . . . . . . . . . . . . . . 114
Interior Rearview Mirrors . . . . . . . . . 47
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North America . . . . . . . . . . . . . . . . . . 301, 302
K
Keyless Entry
Remote (RKE) System . . . . . . . . . 29
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
L
Labeling, Tire Sidewall . . . . . . . . . . 269
Lamps Cornering . . . . . . . . . . . . . . . . . . . . . 152
Daytime Running (DRL) . . . . . . 150
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 153
Exterior Controls . . . . . . . . . . . . . . 149
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . 150
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . 155
License Plate . . . . . . . . . . . . . . . . . 259
Malfunction Indicator (Check Engine) . . . . . . . . . . . . . 122
On Reminder . . . . . . . . . . . . . . . . . 130
Reading . . . . . . . . . . . . . . . . . . . . . . 153
Sun Visor . . . . . . . . . . . . . . . . . . . . . 154
Lane Change Alert (LCA) . . . . . . . 220
Lane Departure Warning (LDW) . . . . . . . . . . . . . . . . 222
Lane Keep Assist (LKA) . . . . . . . . 222
Lane Keep Assist Light . . . . . . . . . 126
Lap-Shoulder Belt . . . . . . . . . . . . . . . 66 LATCH System
Replacing Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . . . 96
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . 90
LED Lighting . . . . . . . . . . . . . . . . . . . . 259
Lighting Adaptive Forward . . . . . . . . . . . . . 151
Entry . . . . . . . . . . . . . . . . . . . . . . . . . 154
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Illumination Control . . . . . . . . . . . 153
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 259
Lights Adaptive Forward Lighting(AFL) Light . . . . . . . . . . . . . . . . . . 129
Airbag Readiness . . . . . . . . . . . . . 121
Antilock Brake System
(ABS) Warning . . . . . . . . . . . . . . 125
Brake System Warning . . . . . . . 124
Charging System . . . . . . . . . . . . . 122
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . 122
Cruise Control . . . . . . . . . . . . . . . . 130
Door Ajar . . . . . . . . . . . . . . . . . . . . . 130
Electric Parking Brake . . . . . . . . 125
Engine Coolant Temperature Warning . . . . . . . 127
Engine Oil Pressure . . . . . . . . . . 128