2019 BUICK LACROSSE bulb

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
138 Instruments and Controls
.Brakes
. Steering
. Ride Control Systems
. Driver Assistance Systems
. Cruise Control
. Lighting and Bulb Replacement
. Wiper/Washer Systems
. Doors and Windows
. Seat Belts
. Airbag Systems
. Engine and Transmission
. Tire Pressure
. Battery
Engine Power Messages
ENGINE/PROPULSION POWER
IS REDUCED
This message displays when the
vehicle's propulsion power is
reduced. Reduced propulsion power
can affect the vehicle's ability to
accelerate. If this message is on,
but there is no observed reduction in performance, proceed to your
destination. The performance may
be reduced the next time the vehicle
is driven. The vehicle may be driven
while this message is on, but
maximum acceleration and speed
may be reduced. Anytime this
message stays on, or displays
repeatedly, the vehicle should be
taken to your dealer for service as
soon as possible.
Vehicle Speed Messages
SPEED LIMITED TO
XXX KM/H (MPH)
This message shows that the
vehicle speed has been limited to
the speed displayed. The limited
speed is a protection for various
propulsion and vehicle systems,
such as lubrication, thermal,
suspension, Teen Driver if
equipped, or tires.
Vehicle
Personalization
Use the audio system controls to
access the personalization menus
for customizing vehicle features.
The following are all possible
personalization features. Depending
on the vehicle, some may not be
available.
To access the personalization
menus:
1. Touch SETTINGS on the Home Page on the infotainment
display.
2. Touch the desired feature to display a list of available
options.
3. Touch the desired option.
4. Touch to select the desired option setting.
5. Touch
hBACK to return to the
previous menu.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
152 Lighting
Turn and Lane-Change
Signals
Move the lever all the way up or
down to signal a turn.
An arrow on the instrument cluster
flashes in the direction of the turn or
lane change.
Raise or lower the lever until the
arrow starts to flash to signal a lane
change. Hold it there until the lane
change is completed. If the lever is
briefly pressed and released, the
turn signal flashes three times.
The turn and lane-change signal
can be turned off manually by
moving the lever back to its original
position.If after signaling a turn or lane
change the arrow flashes rapidly or
does not come on, a signal bulb
might be burned out.
Have any burned out bulbs
replaced. If the bulb is not burned
out, check the fuse. See
Fuses and
Circuit Breakers 0261.
Fog Lamps
The fog lamps button is on the
instrument panel to left of the
steering wheel.
To turn on the fog lamps, the ignition
and the headlamps or parking lamps
must be on. If the fog lamps are turned on while
the exterior lamp control is in the
AUTO position, the headlamps
come on automatically.
9:
Press to turn on or off. An
indicator light on the instrument
cluster comes on when the fog
lamps are on.
Some localities have laws that
require the headlamps to be on
along with the fog lamps.
Cornering Lamps
If equipped with cornering lamps,
they automatically come on when all
of the following occur:
. The low-beam headlamps
are on.
. The turn signals are activated or
the steering wheel is at a
calibrated angle.
. The vehicle speed is below the
calibrated speed.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
Driving and Operating 229
Passing
More passing distance is needed
when towing a trailer. The
combination will not accelerate as
quickly and is longer so it is
necessary to go much farther
beyond the passed vehicle before
returning to the lane.
Backing Up
Hold the bottom of the steering
wheel with one hand. To move the
trailer to the left, move that hand to
the left. To move the trailer to the
right, move your hand to the right.
Always back up slowly and,
if possible, have someone
guide you.
Making TurnsCaution
Making very sharp turns while
trailering could cause the trailer to
come in contact with the vehicle.
The vehicle could be damaged.
Avoid making very sharp turns
while trailering. When turning with a trailer, make
wider turns than normal. Do this so
the trailer will not strike soft
shoulders, curbs, road signs, trees,
or other objects. Avoid jerky or
sudden maneuvers. Signal well in
advance.
If the trailer turn signal bulbs burn
out, the arrows on the instrument
cluster will still flash for turns. It is
important to check occasionally to
be sure the trailer bulbs are still
working.
Driving on Grades
Reduce speed and shift to a lower
gear
before starting down a long or
steep downgrade. If the
transmission is not shifted down, the
brakes might get hot and no longer
work well.
Vehicles can tow in D (Drive). Shift
the transmission to a lower gear if
the transmission shifts too often
under heavy loads and/or hilly
conditions.
When towing at high altitude on
steep uphill grades, consider the
following: Engine coolant will boil at a lower temperature than at normal
altitudes. If the engine is turned off
immediately after towing at high
altitude on steep uphill grades, the
vehicle may show signs similar to
engine overheating. To avoid this,
let the engine run while parked,
preferably on level ground, with the
automatic transmission in P (Park)
for a few minutes before turning the
engine off. If the overheat warning
comes on, see
Engine Overheating
0 250.
Parking on Hills
{Warning
Parking the vehicle on a hill with
the trailer attached can be
dangerous. If something goes
wrong, the rig could start to move.
People can be injured, and both
the vehicle and the trailer can be
damaged. When possible, always
park the rig on a flat surface.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
234 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . 235
California Proposition65 Warning . . . . . . . . . . . . . . . . . 235
California Perchlorate Materials Requirements . . . . . 236
Accessories and Modifications . . . . . . . . . . . . . . . . 236
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 236
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 237
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 238
Engine Oil . . . . . . . . . . . . . . . . . . . . 241
Engine Oil Life System . . . . . . . 244
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . 245
Engine Air Cleaner/Filter . . . . . . 245
Cooling System . . . . . . . . . . . . . . 246
Engine Overheating . . . . . . . . . . 250
Overheated Engine Protection Operating Mode . . . . . . . . . . . . . 252
Washer Fluid . . . . . . . . . . . . . . . . . 252
Brakes . . . . . . . . . . . . . . . . . . . . . . . 253
Brake Fluid . . . . . . . . . . . . . . . . . . . 254 Battery - North America . . . . . . 255
All-Wheel Drive . . . . . . . . . . . . . . . 256
Starter Switch Check . . . . . . . . . 256
Wiper Blade Replacement . . . . 256
Windshield Replacement . . . . . 257
Gas Strut(s) . . . . . . . . . . . . . . . . . . 257
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 258
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 258
High Intensity Discharge (HID)
Lighting . . . . . . . . . . . . . . . . . . . . . 258
LED Lighting . . . . . . . . . . . . . . . . . 259
Taillamps, Turn Signal, Stoplamps, and Back-Up
Lamps . . . . . . . . . . . . . . . . . . . . . . 259
License Plate Lamp . . . . . . . . . . 259
Electrical System
Electrical System Overload . . . 260
Fuses and Circuit Breakers . . . 261
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 261
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 265
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 268
All-Season Tires . . . . . . . . . . . . . . 268
Winter Tires . . . . . . . . . . . . . . . . . . 269 Tire Sidewall Labeling . . . . . . . . 269
Tire Designations . . . . . . . . . . . . . 271
Tire Terminology and
Definitions . . . . . . . . . . . . . . . . . . 272
Tire Pressure . . . . . . . . . . . . . . . . . 275
Tire Pressure for High-Speed
Operation . . . . . . . . . . . . . . . . . . . 276
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 276
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 277
Tire Inspection . . . . . . . . . . . . . . . . 280
Tire Rotation . . . . . . . . . . . . . . . . . 281
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 282
Buying New Tires . . . . . . . . . . . . . 282
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 284
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 284
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 286
Wheel Replacement . . . . . . . . . . 286
Tire Chains . . . . . . . . . . . . . . . . . . . 287
If a Tire Goes Flat . . . . . . . . . . . . 287
Tire Sealant and Compressor Kit . . . . . . . . . . . . . 289
Storing the Tire Sealant and Compressor Kit . . . . . . . . . . . . . 295
Tire Changing . . . . . . . . . . . . . . . . 296

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
258 Vehicle Care
Trunk
Liftgate
Headlamp Aiming
Headlamp aim has been preset and
should need no further adjustment.
If the vehicle is damaged in a crash,
the headlamp aim may be affected.
If adjustment to the headlamps is
necessary, see your dealer.
Bulb Replacement
For the proper type of replacement
bulbs, or any bulb changing
procedure not listed in this section,
contact your dealer.
Caution
Do not replace incandescent
bulbs with aftermarket LED
replacement bulbs. This can
cause damage to the vehicle
electrical system.
High Intensity Discharge
(HID) Lighting
{Warning
The High Intensity Discharge
(HID) lighting system operates at
a very high voltage. If you try to
service any of the system
components, you could be
seriously injured. Have your
dealer or a qualified technician
service them.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
Vehicle Care 259
After an HID headlamp bulb has
been replaced, the beam might be a
slightly different shade than it was
originally. This is normal.
LED Lighting
This vehicle has several LED lamps.
For replacement of any LED lighting
assembly, contact your dealer.
Taillamps, Turn Signal,
Stoplamps, and Back-Up
Lamps
Driver Side Shown, PassengerSide Similar
1. Stoplamp/Turn Signal
2. Back-Up Lamp
To replace one of these bulbs:
1. Open the trunk. See Trunk
0 41.
2. Remove the fasteners to pull the trunk trim out. 3. Remove and retain the four
nuts fastening the taillamp
assembly to the vehicle body.
4. Remove the taillamp assembly by pulling straight back.
5. Remove the bulb socket by turning it counterclockwise.
6. Remove the old bulb by pulling it straight out.
7. Reverse Steps 1–6 to install.
License Plate Lamp
To replace one of these bulbs:

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
260 Vehicle Care
1. Push the lamp assemblytoward the center of the
vehicle, then move the lamp
downward, and remove it from
the vehicle body.
2. Turn the bulb socket (1)
counterclockwise to remove it
from the lamp assembly (3).
3. Pull the bulb (2) out of the bulb socket.
4. Push the replacement bulb straight into the bulb socket
and turn the bulb socket
clockwise to install into the
lamp assembly. 5. Push the lamp assembly back
into position until the release
tab locks into place.
Electrical System
Electrical System
Overload
The vehicle has fuses and circuit
breakers to protect against an
electrical system overload.
When the current electrical load is
too heavy, the circuit breaker opens
and closes, protecting the circuit
until the current load returns to
normal or the problem is fixed. This
greatly reduces the chance of circuit
overload and fire caused by
electrical problems.
Fuses and circuit breakers protect
power devices in the vehicle.
Replace a bad fuse with a new one
of the identical size and rating.
If there is a problem on the road and
a fuse needs to be replaced, the
same amperage fuse can be
borrowed. Choose some feature of
the vehicle that is not needed to use
and replace it as soon as possible.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
362 Index
ArmrestRear Seat . . . . . . . . . . . . . . . . . . . . . . 63
Armrest Storage . . . . . . . . . . . . . . . . 103
Assistance Program, Roadside . . . . . . . . . . . . . . . . . . . . . . 339
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . 214
Assistance Systems for Parking and Backing . . . . . . . . . . 210
Auto Stop Stop/Start System . . . . . . . 178, 179
Automatic Dimming Mirrors . . . . . . . . . . . . . . . . 46
Door Locks . . . . . . . . . . . . . . . . . . . . . 39
Forward Braking . . . . . . . . . . . . . . 216
Headlamp System . . . . . . . . . . . . 150
Transmission . . . . . . . . . . . . . . . . . 187
Transmission Fluid . . . . . . . . . . . 245
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 191
B
BatteryExterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . 155
Load Management . . . . . . . . . . . . 154 Battery (cont'd)
Power Protection . . . . . . . . . . . . . 155
Battery - North America . . . . . . . . . . . . .255, 301, 302
Blade Replacement, Wiper . . . . . 256
Brake Parking, Electric . . . . . . . . . . . . . . 193
System Warning Light . . . . . . . . 124
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Antilock . . . . . . . . . . . . . . . . . . . . . . . 193
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 195
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 254
Regenerative Braking . . . . . . . . . 196
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 166
Automatic Forward . . . . . . . . . . . 216
Braking System Front Pedestrian (FPB) . . . . . . . 218
Break-In, New Vehicle . . . . . . . . . . 175
Bulb Replacement
Headlamp Aiming . . . . . . . . . . . . . 258
Headlamps . . . . . . . . . . . . . . . . . . . 258
High Intensity Discharge(HID) Lighting . . . . . . . . . . . . . . . 258
License Plate Lamps . . . . . . . . . 259
Taillamps, Turn Signal, Stoplamps, and Back-up
Lamps . . . . . . . . . . . . . . . . . . . . . . 259
Buying New Tires . . . . . . . . . . . . . . . 282
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 108
California
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 236
California Proposition
65 Warning . . . . . . . 235, 255, 301, 302,
Back Cover
Canadian Vehicle Owners . . . . . . . . 2
Capacities and Specifications . . . . . . . . . . . . . . . . . 333
Carbon Monoxide
Engine Exhaust . . . . . . . . . . . . . . . 186
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Winter Driving . . . . . . . . . . . . . . . . 170
Cargo Tie-Downs . . . . . . . . . . . . . . . . . . . . 103
Caution, Danger, and Warning . . . . 2
Center Console Storage . . . . . . . . 103
Chains, Tire . . . . . . . . . . . . . . . . . . . . 287
Charging Wireless . . . . . . . . . . . . . . . . . . . . . . .110
Charging System Light . . . . . . . . . 122
Check Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 122