2019 BUICK LACROSSE automatic transmission fluid

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
Driving and Operating 191
3. After releasing the shift lever, itwill return to the center
position.
To shift out of D (Drive): 1. Bring the vehicle to a complete stop.
2. Shift to the desired gear.
3. After releasing the shift lever, it will return to the center
position.
Downshifting the transmission in
slippery road conditions could result
in skidding. See “Skidding”under
Loss of Control 0168.
Caution
Spinning the tires or holding the
vehicle in one place on a hill
using only the accelerator pedal
may damage the transmission.
The repair will not be covered by
the vehicle warranty. If the vehicle
is stuck, do not spin the tires.
When stopping on a hill, use the
brakes to hold the vehicle in
place.
Caution
A transmission hot message may
display if the automatic
transmission fluid is too hot.
Driving under this condition can
damage the vehicle. Stop and idle
the engine to cool the automatic
transmission fluid. This message
clears when the transmission fluid
has cooled sufficiently.
Manual Mode
Tap Shift
Caution
Driving with the engine at a high
rpm without upshifting while using
Tap Shift, could damage the
vehicle. Always upshift when
necessary while using Tap Shift.
Vehicles with Tap Shift have
controls on the back of the steering
wheel to manually shift the
automatic transmission.
To enter Permanent Tap Shift Mode:1. With the transmission in D (Drive), pull back on the shift
lever to activate M (Manual
Mode). The M in the shift
pattern will illuminate in red,
and the D will switch to white.
2. Tap the left steering wheel control to downshift, and the
right control to upshift. To shift
to the lowest available gear,
press and hold the left control.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
230 Driving and Operating
If parking the rig on a hill:1. Press the brake pedal, but do not shift into P (Park) yet. Turn
the wheels into the curb if
facing downhill or into traffic if
facing uphill.
2. Have someone place chocks under the trailer wheels.
3. When the wheel chocks are in place, release the regular
brakes until the chocks absorb
the load.
4. Reapply the brake pedal. Then apply the parking brake and
shift into P (Park).
5. Release the brake pedal.
Leaving After Parking on a Hill
1. Apply and hold the brake pedal.
2. Start the engine.
3. Shift into a gear.
4. Release the parking brake.
5. Let up on the brake pedal.
6. Drive slowly until the trailer is clear of the chocks. 7. Stop and have someone pick
up and store the chocks.
Maintenance when Trailer
Towing
The vehicle needs service more
often when pulling a trailer. See
Maintenance Schedule 0320.
Things that are especially important
in trailer operation are automatic
transmission fluid, engine oil, axle
lubricant, belts, cooling system, and
brake system. It is a good idea to
inspect these before and during
the trip.
Check periodically to see that all
hitch nuts and bolts are tight.
Trailer Towing
{Warning
The driver can lose control when
pulling a trailer if the correct
equipment is not used or the
vehicle is not driven properly. For
example, if the trailer is too heavy
(Continued)
Warning (Continued)
or the trailer brakes are
inadequate for the load, the
vehicle may not stop as expected.
The driver and passengers could
be seriously injured. The vehicle
may also be damaged; the
resulting repairs would not be
covered by the vehicle warranty.
Pull a trailer only if all the steps in
this section have been followed.
Ask your dealer for advice and
information about towing a trailer
with the vehicle.
Caution
Pulling a trailer improperly can
damage the vehicle and result in
costly repairs not covered by the
vehicle warranty. To pull a trailer
correctly, follow the advice in this
section and see your dealer for
important information about
towing a trailer with the vehicle.

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
Vehicle Care 245
Automatic Transmission
Fluid
How to Check Automatic
Transmission Fluid
It is not necessary to check the
transmission fluid level.
A transmission fluid leak is the only
reason for fluid loss. If a leak
occurs, take the vehicle to your
dealer service department and have
it repaired as soon as possible.
There is a special procedure for
checking and changing the
transmission fluid. Because this
procedure is difficult, you should
have this done at your dealer
service department. Contact your
dealer for additional information or
the procedure can be found in the
service manual. To purchase a
service manual, seePublication
Ordering Information 0344.
Caution
Use of the incorrect automatic
transmission fluid may damage
the vehicle, and the damage may
not be covered by the vehicle
warranty. Always use the correct
automatic transmission fluid. See
Recommended Fluids and
Lubricants 0329.
Change the fluid at the intervals
listed in Maintenance Schedule
0 320, and be sure to use the fluid
listed in Recommended Fluids and
Lubricants 0329.
Engine Air Cleaner/Filter
The engine air cleaner/filter is in the
engine compartment on the
passenger side of the vehicle. See
Engine Compartment Overview
0238.
When to Inspect the Engine Air
Cleaner/Filter
For intervals on changing and
inspecting the engine air cleaner/
filter, see Maintenance Schedule
0 320.
How to Inspect the Engine Air
Cleaner/Filter
Do not start the engine or have the
engine running with the engine air
cleaner/filter housing open. Before
removing the engine air cleaner/
filter, make sure that the engine air
cleaner/filter housing and nearby
components are free of dirt and
debris. Remove the engine air
cleaner/filter. Lightly tap and shake
the engine air cleaner/filter (away
from the vehicle), to release loose
dust and dirt. Inspect the engine air
cleaner/filter for damage, and
replace if damaged. Do not clean
the engine air cleaner/filter or
components with water or
compressed air.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
324 Service and Maintenance
Maintenance Schedule
Additional Required
Services - Severe12 000 km/7,500 mi
24 000 km/15,000 mi
36 000 km/22,500 mi
48 000 km/30,000 mi
60 000 km/37,500 mi
72 000 km/45,000 mi
84 000 km/52,500 mi
96 000 km/60,000 mi
108 000 km/67,500 mi
120 000 km/75,000 mi
132 000 km/82,500 mi
144 000 km/90,000 mi
156 000 km/97,500 mi
168 000 km/105,000 mi 180 000 km/112,500 mi
192 000 km/120,000 mi
204 000 km/127,500 mi
216 000 km/135,000 mi
228 000 km/142,500 mi
240 000 km/150,000 mi
Rotate tires and perform Required Services.
Check engine oil level and oil life percentage.
Change engine oil and filter, if needed.@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Replace passenger compartment air filter. (1)@ @@@@@
Inspect evaporative control system. (2)@ @@
Replace engine air cleaner filter. (3)@@@
Change automatic transmission fluid.@@@
Replace spark plugs. Inspect spark plug wires.@
Drain and fill engine cooling system. (4)@
Vehicles with eAssist: Visually inspect both
accessory drive belts.@ @@ @@ @
Vehicles with eAssist: Replace the generator
drive belt.@ @@
Vehicles without eAssist: Visually inspect the
accessory drive belts. (5)@
Replace brake fluid. (6)
Replace windshield wiper blades. (7)
@ @ @ @ @ @ @ @ @ @
Replace hood and/or body lift support gas struts.@ @

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
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

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