steering BUICK LACROSSE 2019 Repair Manual

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
Vehicle Care 313
for surface condition. Inspect drum
brake linings/shoes for wear or
cracks. Inspect all other brake parts.
Steering, Suspension, and
Chassis Components
Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of wear at
least once a year.
Inspect power steering for proper
attachment, connections, binding,
leaks, cracks, chafing, etc.
Visually check constant velocity joint
boots and axle seals for leaks.
Body Component Lubrication
Lubricate all key lock cylinders,
hood hinges, liftgate hinges, and the
steel fuel door hinges, unless the
components are plastic. Applying
silicone grease on weatherstrips
with a clean cloth will make them
last longer, seal better, and not stick
or squeak.
Underbody Maintenance
At least twice a year, spring and fall,
use plain water to flush any
corrosive materials from the
underbody. Take care to thoroughly
clean any areas where mud and
other debris can collect.
Do not directly power wash the
transfer case and/or front/rear axle
output seals. High pressure water
can overcome the seals and
contaminate the fluid. Contaminated
fluid will decrease the life of the
transfer case and/or axles and
should be replaced.
Sheet Metal Damage
If the vehicle is damaged and
requires sheet metal repair or
replacement, make sure the body
repair shop applies anti-corrosion
material to parts repaired or
replaced to restore corrosion
protection.
Original manufacturer replacement
parts will provide the corrosion
protection while maintaining the
vehicle warranty.
Finish Damage
Quickly repair minor chips and
scratches with touch-up materials
available from your dealer to avoid
corrosion. Larger areas of finish
damage can be corrected in your
dealer's body and paint shop.
Chemical Paint Spotting
Airborne pollutants can fall upon
and attack painted vehicle surfaces
causing blotchy, ring-shaped
discolorations, and small, irregular
dark spots etched into the paint
surface. See“Finish Care”
previously in this section.
Interior Care
To prevent dirt particle abrasions,
regularly clean the vehicle's interior.
Immediately remove any soils.
Newspapers or dark garments can
transfer color to the vehicle’s
interior.
Use a soft bristle brush to remove
dust from knobs and crevices on the
instrument cluster. Using a mild
soap solution, immediately remove

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 321
parts, or signs of wear at least
once a year. SeeExterior Care
0 309.
. Inspect power steering for
proper attachment, connections,
binding, leaks, cracks,
chafing, etc.
. Visually inspect halfshafts and
drive shafts for excessive wear,
lubricant leaks, and/or damage
including: tube dents or cracks,
constant velocity joint or
universal joint looseness,
cracked or missing boots, loose
or missing boot clamps, center
bearing excessive looseness,
loose or missing fasteners, and
axle seal leaks.
. Check restraint system
components. See Safety System
Check 069.
. Visually inspect fuel system for
damage or leaks.
. Visually inspect exhaust system
and nearby heat shields for
loose or damaged parts. .
Lubricate body components. See
Exterior Care 0309.
. Check starter switch. See Starter
Switch Check 0256.
. Check accelerator pedal for
damage, high effort, or binding.
Replace if needed.
. Visually inspect gas strut for
signs of wear, cracks, or other
damage. Check the hold open
ability of the strut. If the hold
open is low, service the gas
strut. See Gas Strut(s) 0257.
. Inspect sunroof track and seal,
if equipped. See Sunroof050.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
Service and Maintenance 327
Lamps
Properly working headlamps,
taillamps, and brake lamps are
important to see and be seen on
the road.
.Signs that the headlamps need
attention include dimming, failure
to light, cracking, or damage.
The brake lamps need to be
checked periodically to ensure
that they light when braking.
. With a multi-point inspection,
your dealer can check the lamps
and note any concerns.
Shocks and Struts
Shocks and struts help aid in control
for a smoother ride.
. Signs of wear may include
steering wheel vibration, bounce/
sway while braking, longer
stopping distance, or uneven
tire wear.
. As part of the multi-point
inspection, trained dealer
technicians can visually inspect
the shocks and struts for signs of leaking, blown seals,
or damage, and can advise
when service is needed.
Tires
Tires need to be properly inflated,
rotated, and balanced. Maintaining
the tires can save money and fuel,
and can reduce the risk of tire
failure.
. Signs that the tires need to be
replaced include three or more
visible treadwear indicators; cord
or fabric showing through the
rubber; cracks or cuts in the
tread or sidewall; or a bulge or
split in the tire.
. Trained dealer technicians can
inspect and recommend the right
tires. Your dealer can also
provide tire/wheel balancing
services to ensure smooth
vehicle operation at all speeds.
Your dealer sells and services
name brand tires. Vehicle Care
To help keep the vehicle looking like
new, vehicle care products are
available from your dealer. For
information on how to clean and
protect the vehicle’s interior and
exterior, see
Interior Care 0313 and
Exterior Care 0309.
Wheel Alignment
Wheel alignment is critical for
ensuring that the tires deliver
optimal wear and performance.
. Signs that the alignment may
need to be adjusted include
pulling, improper vehicle
handling, or unusual tire wear.
. Your dealer has the required
equipment to ensure proper
wheel alignment.
Windshield
For safety, appearance, and the
best viewing, keep the windshield
clean and clear.
. Signs of damage include
scratches, cracks, and chips.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
344 Customer Information
.Vehicle make, model, and
model year
. Vehicle Identification
Number (VIN)
. Insurance company and policy
number
. General description of the
damage to the other vehicle
Choose a reputable repair facility
that uses quality replacement parts.
See “Collision Parts” earlier in this
section.
If the airbag has inflated, see What
Will You See after an Airbag
Inflates? 075.
Managing the Vehicle Damage
Repair Process
In the event that the vehicle requires
damage repairs, GM recommends
that you take an active role in its
repair. If you have a pre-determined
repair facility of choice, take the
vehicle there, or have it towed there.
Specify to the facility that any
required replacement collision parts
be original equipment parts, either
new Genuine GM parts or recycled original GM parts. Remember,
recycled parts will not be covered by
the GM vehicle warranty.
Insurance pays the bill for the repair,
but you must live with the repair.
Depending on your policy limits,
your insurance company may
initially value the repair using
aftermarket parts. Discuss this with
the repair professional, and insist on
Genuine GM parts. Remember,
if the vehicle is leased, you may be
obligated to have the vehicle
repaired with Genuine GM parts,
even if your insurance coverage
does not pay the full cost.
If another party's insurance
company is paying for the repairs,
you are not obligated to accept a
repair valuation based on that
insurance company's collision policy
repair limits, as you have no
contractual limits with that company.
In such cases, you can have control
of the repair and parts choices as
long as the cost stays within
reasonable limits.
Publication Ordering
Information
Service Manuals
Service manuals have the diagnosis
and repair information on the
engine, transmission, axle,
suspension, brakes, electrical
system, steering system, body, etc.
Customer Literature
Owner
’s manuals are written
specifically for owners and are
intended to provide basic
operational information about the
vehicle. The owner ’s manual
includes the Maintenance Schedule
for all models.
Customer literature publications
available for purchase include
owner ’s manuals, warranty
manuals, infotainment manuals, and
portfolios. Portfolios include an
owner ’s manual, warranty manual,
infotainment manual, if applicable,
and zip lock bag or pouch.

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
370 Index
Special Application Services . . . . 325
Specifications andCapacities . . . . . . . . . . . . . . . . . . . . . 333
Speedometer . . . . . . . . . . . . . . . . . . . 116
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . . . 127
Start Assist, Hill . . . . . . . . . . . . . . . . . 195
Start Vehicle, Remote . . . . . . . . . . . 35
Starter Switch Check . . . . . . . . . . . 256
Starting the Engine . . . . . . . . . . . . . 177
Steering . . . . . . . . . . . . . . . . . . . . . . . . 167
Heated Wheel . . . . . . . . . . . . . . . . 106
Wheel Adjustment . . . . . . . . . . . . 106
Wheel Controls . . . . . . . . . . . . . . . 106
Stop/Start System . . . . . . . . . 178, 179
Stoplamps and Back-up Lamps Bulb Replacement . . . . . . . . . . . . 259
Storage Areas Armrest . . . . . . . . . . . . . . . . . . . . . . . 103
Center Console . . . . . . . . . . . . . . . 103
Convenience Net . . . . . . . . . . . . . 103
Glove Box . . . . . . . . . . . . . . . . . . . . 102
Storage Compartments . . . . . . . . . 102
Storing the Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . 295
Struts Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 171 Sun Visor Lamps . . . . . . . . . . . . . . . 154
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 49
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Sunshade
Rear Window . . . . . . . . . . . . . . . . . . . 50
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Forward CollisionAlert (FCA) . . . . . . . . . . . . . . . . . . 214
Infotainment . . . . . . . . . . . . . 156, 348
Systems
Driver Assistance . . . . . . . . . . . . . 208
T
Tachometer . . . . . . . . . . . . . . . . . . . . . 116
TaillampsBulb Replacement . . . . . . . . . . . . 259
Text Telephone (TTY) Users . . . . 338
Theft-Deterrent Systems . . . . . . . . . 44 Immobilizer . . . . . . . . . . . . . . . . . . . . . 44
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268
All-Season . . . . . . . . . . . . . . . . . . . . 268
Buying New Tires . . . . . . . . . . . . . 282
Chains . . . . . . . . . . . . . . . . . . . . . . . . 287
Changing . . . . . . . . . . . . . . . . . . . . . 296
Compact Spare . . . . . . . . . . . . . . . 300
Designations . . . . . . . . . . . . . . . . . 271 Tires (cont'd)
Different Size . . . . . . . . . . . . . . . . . 284
If a Tire Goes Flat . . . . . . . . . . . . 287
Inspection . . . . . . . . . . . . . . . . . . . . 280
Pressure . . . . . . . . . . . . . . . . . 275, 276
Pressure Light . . . . . . . . . . . . . . . . 128
Pressure Monitor Operation . . 277
Pressure Monitor System . . . . . 276
Rotation . . . . . . . . . . . . . . . . . . . . . . 281
Sealant and
Compressor Kit . . . . . . . . . . . . . 289
Sealant and Compressor Kit, Storing . . . . . . . . . . . . . . . . . . 295
Sidewall Labeling . . . . . . . . . . . . . 269
Terminology and Definitions . . 272
Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . . . 284
Wheel Alignment and Tire
Balance . . . . . . . . . . . . . . . . . . . . . 286
Wheel Replacement . . . . . . . . . . 286
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 282
Winter . . . . . . . . . . . . . . . . . . . . . . . . 269
Top Tier Fuel . . . . . . . . . . . . . . . . . . . 224
Towing Driving Characteristics . . . . . . . . 227
Equipment . . . . . . . . . . . . . . . . . . . . 232
General Information . . . . . . . . . . 227