2016 BUICK LACROSSE lock

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
224 Driving and Operating
Total Weight on Your Vehicle's
Tires
Be sure the vehicle's tires are
inflated to the upper limit for cold
tires. These numbers can be found
on the Tire and Loading Information
label. SeeVehicle Load Limits
0 171. Make sure not to go over the
GVW limit for the vehicle, including
the weight of the trailer tongue.
Trailer Towing (eAssist)
The vehicle is neither designed nor
intended to tow a trailer.
Towing Equipment
Hitches
Use the correct hitch equipment.
See your dealer or a hitch dealer for
assistance.
. The rear bumper on the vehicle
is not intended for hitches. Do
not attach rental hitches or other
bumper-type hitches to it. Use
only a frame-mounted hitch that
does not attach to the bumper. .
Will any holes be made in the
body of the vehicle when the
trailer hitch is installed? If so,
seal the holes when the hitch is
removed. If the holes are not
sealed, dirt, water, and deadly
carbon monoxide (CO) from the
exhaust can get into the vehicle.
See Engine Exhaust 0185.
Safety Chains
Always attach chains between the
vehicle and the trailer. Cross the
safety chains under the tongue of
the trailer to help prevent the tongue
from contacting the road if it
becomes separated from the hitch.
Leave enough slack so the rig can
turn. Never allow safety chains to
drag on the ground.
Trailer Brakes
Does the trailer have its own
brakes? Be sure to read and follow
the instructions for the trailer brakes
so they are installed, adjusted, and
maintained properly.
Because the vehicle has antilock
brakes, do not tap into the vehicle's
brake system. If this is done, both
brake systems will not work well or
at all.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
226 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . 227
California Proposition65 Warning . . . . . . . . . . . . . . . . . 227
California Perchlorate Materials Requirements . . . . . 228
Accessories and Modifications . . . . . . . . . . . . . . . . 228
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 229
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 230
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 231
Engine Oil . . . . . . . . . . . . . . . . . . . . 236
Engine Oil Life System . . . . . . . 238
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . 239
Engine Air Cleaner/Filter . . . . . . 239
Cooling System . . . . . . . . . . . . . . 242
Engine Coolant . . . . . . . . . . . . . . . 243
Engine Overheating . . . . . . . . . . 245
Overheated Engine Protection Operating Mode . . . . . . . . . . . . . 246 Power Steering Fluid (2.4L L4
Engine and 3.6L V6 Engine
with FWD) . . . . . . . . . . . . . . . . . . 247
Power Steering Fluid (3.6L V6 Engine with AWD) . . . . . . . 247
Washer Fluid . . . . . . . . . . . . . . . . . 247
Brakes . . . . . . . . . . . . . . . . . . . . . . . 248
Brake Fluid . . . . . . . . . . . . . . . . . . . 249
Battery - North America . . . . . . 250
All-Wheel Drive . . . . . . . . . . . . . . . 251
Starter Switch Check . . . . . . . . . 251
Automatic Transmission Shift Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 252
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . 252
Park Brake and P (Park) Mechanism Check . . . . . . . . . . 252
Wiper Blade Replacement . . . . 253
Windshield Replacement . . . . . 253
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 254
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 254
Halogen Bulbs . . . . . . . . . . . . . . . . 254
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . . . 254
LED Lighting . . . . . . . . . . . . . . . . . 254 Headlamps, Front Turn Signal
and Parking Lamps . . . . . . . . . 255
Taillamps, Turn Signal, Stoplamps, and Back-Up
Lamps . . . . . . . . . . . . . . . . . . . . . . 256
License Plate Lamp . . . . . . . . . . 256
Replacement Bulbs . . . . . . . . . . . 257
Electrical System
High Voltage Devices and Wiring . . . . . . . . . . . . . . . . . . . . . . . 257
Electrical System Overload . . . 257
Fuses and Circuit Breakers . . . 258
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 259
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 262
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 264
All-Season Tires . . . . . . . . . . . . . . 265
Winter Tires . . . . . . . . . . . . . . . . . . 265
Summer Tires . . . . . . . . . . . . . . . . 265
Tire Sidewall Labeling . . . . . . . . 266
Tire Designations . . . . . . . . . . . . . 268
Tire Terminology and
Definitions . . . . . . . . . . . . . . . . . . 268
Tire Pressure . . . . . . . . . . . . . . . . . 271
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . 272

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
228 Vehicle Care
harm. Engine exhaust, many parts
and systems, many fluids, and
some component wear by-products
contain and/or emit these
chemicals.
SeeBattery - North America 0250
and Jump Starting - North America
(On-board with eAssist Only) 0297
or Jump Starting - North America
(with or without eAssist) 0298.
California Perchlorate
Materials Requirements
Certain types of automotive
applications, such as airbag
initiators, safety belt pretensioners,
and lithium batteries contained in
Remote Keyless Entry transmitters,
may contain perchlorate materials.
Special handling may be necessary.
For additional information, see
www.dtsc.ca.gov/hazardouswaste/
perchlorate.
Accessories and
Modifications
Adding non-dealer accessories or
making modifications to the vehicle
can affect vehicle performance and
safety, including such things as
airbags, braking, stability, ride and
handling, emissions systems,
aerodynamics, durability, and
electronic systems like antilock
brakes, traction control, and stability
control. These accessories or
modifications could even cause
malfunction or damage not covered
by the vehicle warranty.
Damage to suspension components
caused by modifying vehicle height
outside of factory settings will not be
covered by the warranty. Damage to vehicle components
resulting from modifications or the
installation or use of non-GM
certified parts, including control
module or software modifications, is
not covered under the terms of the
vehicle warranty and may affect
remaining warranty coverage for
affected parts.
GM Accessories are designed to
complement and function with other
systems on the vehicle. See your
dealer to accessorize the vehicle
using genuine GM Accessories
installed by a dealer technician.
Also, see
Adding Equipment to the
Airbag-Equipped Vehicle 076.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
232 Vehicle Care
1.Engine Air Cleaner/Filter 0239.
2. Engine Cover.
3. Engine Cooling Fans (Out of View). See Cooling
System 0242.
4. Engine Oil Fill Cap. See Engine Oil 0236.
5. Engine Oil Dipstick (Out of View). See Engine Oil0236.
6. High Voltage Cable (Orange Color). 7. Transmission Fluid Cap. See
Automatic Transmission
Fluid 0239.
8. Brake Master Cylinder Reservoir. See Brake
Fluid 0249.
9. Battery (Under Cover). See Battery - North America 0250. 10. Coolant Surge Tank and
Pressure Cap. See Engine
Coolant 0243.
11. Engine Compartment Fuse
Block 0259.
12. Windshield Washer Fluid Reservoir. See Washer
Fluid 0247.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
234 Vehicle Care
1.Engine Air Cleaner/Filter 0239.
2. Power Steering Reservoir and Cap. See Power Steering Fluid
(2.4L L4 Engine and 3.6L
V6 Engine with FWD) 0247 or
Power Steering Fluid (3.6L
V6 Engine with AWD) 0247.
3. Engine Oil Fill Cap. See Engine Oil 0236.
4. Engine Oil Dipstick. See Engine Oil 0236. 5. Engine Cover.
6. Transmission Fluid Cap and
Dipstick. See Automatic
Transmission Fluid 0239.
7. Brake Master Cylinder Reservoir. See Brake
Fluid 0249.
8. Coolant Surge Tank and Pressure Cap. See Engine
Coolant 0243. 9. Battery Cover. See
Battery -
North America 0250.
10. Engine Compartment Fuse
Block 0259.
11. Windshield Washer Fluid Reservoir. See Washer
Fluid 0247.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
236 Vehicle Care
1.Engine Air Cleaner/Filter 0239.
2. Engine Oil Fill Cap. See Engine Oil 0236.
3. Engine Oil Dipstick. See Engine Oil 0236.
4. Engine Cover.
5. Transmission Fluid Cap and Dipstick. See Automatic
Transmission Fluid 0239.
6. Brake Master Cylinder Reservoir. See Brake
Fluid 0249.
7. Coolant Surge Tank and Pressure Cap. See Engine
Coolant 0243.
8. Battery Cover. See Battery -
North America 0250.
9. Engine Compartment Fuse
Block 0259.
10. Windshield Washer Fluid Reservoir. See Washer
Fluid 0247.Engine Oil
To ensure proper engine
performance and long life, careful
attention must be paid to engine oil.
Following these simple, but
important steps will help protect
your investment:
.
Use engine oil approved to the
proper specification and of the
proper viscosity grade. See
“Selecting the Right Engine Oil”
in this section.
. Check the engine oil level
regularly and maintain the
proper oil level. See “Checking
Engine Oil” and“When to Add
Engine Oil” in this section.
. Change the engine oil at the
appropriate time. See Engine Oil
Life System 0238.
. Always dispose of engine oil
properly. See “What to Do with
Used Oil” in this section.
Checking Engine Oil
It is a good idea to check the engine
oil level at each fuel fill. In order to
get an accurate reading, the vehicle must be on level ground. The
engine oil dipstick handle is a loop.
See
Engine Compartment Overview
0 231 for the location of the engine
oil dipstick.
Obtaining an accurate oil level
reading is essential:
1. If the engine has been running recently, turn off the engine and
allow several minutes for the oil
to drain back into the oil pan.
Checking the oil level too soon
after engine shutoff will not
provide an accurate oil level
reading.
{Warning
The engine oil dipstick handle
may be hot; it could burn you.
Use a towel or glove to touch the
dipstick handle.
2. Pull out the dipstick and wipe it with a clean paper towel or
cloth, then push it back in all
the way. Remove it again,
keeping the tip down, and
check the level.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
Vehicle Care 245
The coolant surge tank pressure
cap can be removed when the
cooling system, including the surge
tank pressure cap and upper
radiator hose, is no longer hot.1. Turn the pressure cap slowly counterclockwise. If a hiss is
heard, wait for that to stop.
A hiss means there is still
some pressure left.
2. Keep turning the cap and remove it.
3. Fill the coolant surge tank withthe proper mixture to the mark
pointed to on the front of the
coolant surge tank.
4. With the coolant surge tank cap off, start the engine and let
it run until the upper radiator
hose starts getting hot. Watch
out for the engine cooling fans.
By this time, the coolant level
inside the coolant surge tank
may be lower. If the level is
lower, add more of the proper
mixture to the coolant surge
tank until the level reaches the
mark pointed to on the front of
the coolant surge tank. 5. Replace the cap tightly.
Caution
If the pressure cap is not tightly
installed, coolant loss and
possible engine damage may
occur. Be sure the cap is properly
and tightly secured.
Engine Overheating
There is a coolant temperature
gauge and a engine coolant
temperature warning light on the
instrument cluster that indicate an
overheated engine condition. See
Engine Coolant Temperature Gauge
0
111 and Engine Coolant
Temperature Warning Light 0118.
If the decision is made not to lift the
hood when this warning appears,
get service help right away. See
Roadside Assistance
Program 0334.
If the decision is made to lift the
hood, make sure the vehicle is
parked on a level surface.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
252 Vehicle Care
Do not use the accelerator
pedal, and be ready to turn off
the engine immediately if it
starts.
3. Try to start the engine in each gear. The vehicle should start
only in P (Park) or N (Neutral).
If the vehicle starts in any other
position, contact your dealer for
service.
Automatic Transmission
Shift Lock Control
Function Check
{Warning
When you are doing this
inspection, the vehicle could
move suddenly. If the vehicle
moves, you or others could be
injured.
1. Before starting this check, be sure there is enough room
around the vehicle. It should be
parked on a level surface. 2. Apply the parking brake. Be
ready to apply the regular
brake immediately if the vehicle
begins to move.
3. With the engine off, turn the ignition on, but do not start the
engine. Without applying the
regular brake, try to move the
shift lever out of P (Park) with
normal effort. If the shift lever
moves out of P (Park), contact
your dealer for service.
Ignition Transmission
Lock Check
If equipped with a key type ignition,
while parked and with the parking
brake set, try to turn the ignition to
LOCK/OFF in each shift lever
position.
.The ignition should turn to
LOCK/OFF only when the shift
lever is in P (Park).
. The ignition key should come
out only in LOCK/OFF.
Contact your dealer if service is
required.
Park Brake and P (Park)
Mechanism Check
{Warning
When you are doing this check,
the vehicle could begin to move.
You or others could be injured
and property could be damaged.
Make sure there is room in front
of the vehicle in case it begins to
roll. Be ready to apply the regular
brake at once should the vehicle
begin to move.
Park on a fairly steep hill, with the
vehicle facing downhill. Keeping
your foot on the regular brake, set
the parking brake.
. To check the parking brake's
holding ability: With the engine
running and the transmission in
N (Neutral), slowly remove foot
pressure from the regular brake
pedal. Do this until the vehicle is
held by the parking brake only.