lock BUICK LACROSSE 2016 Owner's Manual

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
Vehicle Care 259
Engine Compartment
Fuse Block
To remove the fuse block cover,
squeeze the three retaining clips on
the cover and lift it straight up.
Caution
Spilling liquid on any electrical
component on the vehicle may
damage it. Always keep the
covers on any electrical
component.
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.Fuses Usage
1 Transmission control module–battery
2 Engine control module battery
3 A/C clutch Fuses Usage
5 Engine control module/Run/Crank
6 Wiper
7 Long range radar/ Front camera
8 Ignition coils–even (6–cylinder engine)/
Ignition coils–all
(4–cylinder engine)

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
260 Vehicle Care
FusesUsage
9 Ignition coils–odd (6–cylinder engine)
10 Engine control module–switched
battery
11 6–cylinder Engine: post catalytic
converter/O2 sensor/
Heater/Mass air flow
sensor/FlexFuel
sensor/Secondary
air induction
solenoid
12 Starter
13 Crank for transmission control
module/Fuel pump
power/Chassis
control module
(eAssist)
14 Cabin heater coolant pump (eAssist)/
secondary air
injector/Secondary
air injector with
pressure sensor Fuses
Usage
15 Motor generator unit coolant pump
(eAssist)
16 Run/Crank for eAssist power
inverter module
17 –
18 Sunshade module/ Vehicle air
purification system/
Ventilated seats
20 Heated steering wheel (non eAssist)
21 Rear power windows
22 Sunroof
23 Variable effort steering (if
equipped) or eAssist
power inverter
module
24 Front power windows
25 Rear heated seats Fuses
Usage
26 Antilock brake system pump
27 Electric parking brake
28 Rear window defogger
29 Heated seat/Left power lumbar
30 Heated Seat/Right power pack cooling
fan (eAssist)
31 AWD/Electronic suspension control
32 Body control module 6
33 Memory seat–front
34 Antilock brake system valves
35 Amplifier
36 Adaptive forward lighting (AFL)
motors–battery
37 Right high-beam

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
262 Vehicle Care
RelaysUsage
10 Cooling fan 11 Transmission auxiliary oil pump
(eAssist)
13 Cooling fan
14 Headlamp low-beam
15 Run/Crank
16 AIR pump
17 Rear window defoggerInstrument Panel Fuse
Block
The instrument panel fuse block is
located in the instrument panel, on
the driver side of the vehicle. To
access the fuses, open the fuse
panel door by pulling down at
the top.
Press in on the sides of the door to
release it from the instrument panel.
Pull the door toward you to release
it from the hinge.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
Vehicle Care 277
identification code has been
matched to the driver side rear
tire, and the TPMS sensor
matching process is no longer
active. The TIRE LEARNING
ACTIVE message on the DIC
display screen goes off.
11. Turn the ignition to LOCK/OFF or press STOP to turn the
ignition off.
12. Set all four tires to the recommended air pressure
level as indicated on the Tire
and Loading Information label.
Tire Inspection
We recommend that the tires,
including the spare tire, if the
vehicle has one, be inspected
for signs of wear or damage at
least once a month.
Replace the tire if:
.The indicators at three or
more places around the tire
can be seen.
.There is cord or fabric
showing through the tire's
rubber.
.The tread or sidewall is
cracked, cut, or snagged
deep enough to show cord or
fabric.
.The tire has a bump, bulge,
or split.
.The tire has a puncture, cut,
or other damage that cannot
be repaired well because of
the size or location of the
damage.
Tire Rotation
Tires should be rotated every
12 000 km (7,500 mi). See
Maintenance Schedule 0314.
Tires are rotated to achieve a
more uniform wear for all tires.
The first rotation is the most
important. Anytime unusual wear is
noticed, rotate the tires as soon
as possible, check for proper tire
inflation pressure, and check for
damaged tires or wheels. If the
unusual wear continues after the
rotation, check the wheel
alignment. See
When It Is Time
for New Tires 0278 andWheel
Replacement 0282.
Use this rotation pattern when
rotating the tires.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
280 Vehicle Care
tires’maximum speed capability
when using winter tires with a
lower speed rating.
{Warning
Tires could explode during
improper service. Attempting
to mount or dismount a tire
could cause injury or death.
Only your dealer or authorized
tire service center should
mount or dismount the tires.
{Warning
Mixing tires of different sizes,
brands, or types may cause
loss of control of the vehicle,
resulting in a crash or other
vehicle damage. Use the
correct size, brand, and type
of tires on all wheels.
{Warning
Using bias-ply tires on the
vehicle may cause the wheel
rim flanges to develop cracks
after many miles of driving.
A tire and/or wheel could fail
suddenly and cause a crash.
Use only radial-ply tires with
the wheels on the vehicle.
If the vehicle tires must be
replaced with a tire that does not
have a TPC Spec number, make
sure they are the same size,
load range, speed rating, and
construction (radial) as the
original tires.
Vehicles that have a tire
pressure monitoring system
could give an inaccurate
low-pressure warning if non-TPC
Spec rated tires are installed.
See Tire Pressure Monitor
System 0273. The Tire and Loading
Information label indicates the
original equipment tires on the
vehicle. See
Vehicle Load
Limits 0171.
Different Size Tires and
Wheels
If wheels or tires are installed that
are a different size than the original
equipment wheels and tires, vehicle
performance, including its braking,
ride and handling characteristics,
stability, and resistance to rollover
may be affected. If the vehicle has
electronic systems such as antilock
brakes, rollover airbags, roll bars,
traction control, electronic stability
control, or All-Wheel Drive, the
performance of these systems can
also be affected.
{Warning
If different sized wheels are used,
there may not be an acceptable
level of performance and safety if
(Continued)

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
Vehicle Care 285
Warning (Continued)
2. Put an automatictransmission in P (Park) or a
manual transmission in
1 (First) or R (Reverse).
3. Turn off the engine and do not restart while the vehicle
is raised.
4. Do not allow passengers to remain in the vehicle.
5. Place wheel blocks, if equipped, on both sides of
the tire at the opposite
corner of the tire being
changed.
This vehicle may come with a jack
and spare tire or a tire sealant and
compressor kit. To use the jacking
equipment to change a spare tire
safely, follow the instructions below.
Then see Tire Changing 0291. To
use the tire sealant and compressor
kit, see Tire Sealant and
Compressor Kit 0285. When the vehicle has a flat tire (2),
use the following example as a
guide to assist you in the placement
of wheel blocks (1), if equipped.
1. Wheel Block (If Equipped)
2. Flat Tire
The following information explains
how to repair or change a tire.
Tire Sealant and
Compressor Kit
{Warning
Idling a vehicle in an enclosed
area with poor ventilation is
dangerous. Engine exhaust may
(Continued)
Warning (Continued)
enter the vehicle. Engine exhaust
contains carbon monoxide (CO)
which cannot be seen or smelled.
It can cause unconsciousness
and even death. Never run the
engine in an enclosed area that
has no fresh air ventilation. For
more information, seeEngine
Exhaust 0185.
{Warning
Overinflating a tire could cause
the tire to rupture and you or
others could be injured. Be sure
to read and follow the tire sealant
and compressor kit instructions
and inflate the tire to its
recommended pressure. Do not
exceed the recommended
pressure.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
Vehicle Care 287
When using the tire sealant and
compressor kit during cold
temperatures, warm the kit in a
heated environment for five minutes.
This will help to inflate the tire
faster.
If a tire goes flat, avoid further tire
and wheel damage by driving slowly
to a level place. Turn on the hazard
warning flashers. SeeHazard
Warning Flashers 0151.
See If a Tire Goes Flat 0284 for
other important safety warnings.
Do not remove any objects that
have penetrated the tire. 1. Remove the tire sealant and
compressor kit from its storage
location. See Storing the Tire
Sealant and Compressor
Kit 0291.
2. Unwrap the sealant/air hose (6) and the power plug (7).
3. Place the kit on the ground. Make sure the tire valve stem
is positioned close to the
ground so the hose will
reach it.
4. Remove the valve stem cap from the flat tire by turning it
counterclockwise.
5. Attach the sealant/air hose (6) onto the tire valve stem. Turn it
clockwise until it is tight.
6. Plug the power plug (7) into the accessory power outlet in the
vehicle. Unplug all items from
other accessory power outlets.
If the vehicle has an accessory
power outlet, do not use the
cigarette lighter. If the vehicle only has a
cigarette lighter, use the
cigarette lighter.
Do not pinch the power plug
cord in the door or window.
7. Start the vehicle. The vehicle must be running while using
the air compressor.
8. Turn the selector switch (2) clockwise to the Sealant + Air
position.
9. Press the on/off button (1) to turn the tire sealant and
compressor kit on.
The compressor will inject
sealant and air into the tire.
The pressure gauge (4) will
initially show a high pressure
while the compressor pushes
the sealant into the tire. Once
the sealant is completely
dispersed into the tire, the
pressure will quickly drop and
start to rise again as the tire
inflates with air only.
10. Inflate the tire to the recommended inflation
pressure using the pressure

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
288 Vehicle Care
gauge (4). The recommended
inflation pressure can be found
on the Tire and Loading
Information label. SeeTire
Pressure 0271.
The pressure gauge (4) may
read higher than the actual tire
pressure while the compressor
is on. Turn the compressor off
to get an accurate pressure
reading. The compressor may
be turned on/off until the
correct pressure is reached.
Caution
If the recommended pressure
cannot be reached after
approximately 25 minutes, the
vehicle should not be driven
farther. The tire is too severely
damaged and the tire sealant and
compressor kit cannot inflate the
tire. Remove the power plug from
the accessory power outlet and
unscrew the inflating hose from
the tire valve. See Roadside
Assistance Program 0334. 11. Press the on/off button (1) to
turn the tire sealant and
compressor kit off.
The tire is not sealed and will
continue to leak air until the
vehicle is driven and the
sealant is distributed in the tire;
therefore, Steps 12–18 must be
done immediately after
Step 11.
Be careful while handling the
tire sealant and compressor kit
as it could be warm after
usage.
12. Unplug the power plug (7) from the accessory power outlet in
the vehicle.
13. Turn the sealant/air hose (6) counterclockwise to remove it
from the tire valve stem.
14. Replace the tire valve stem cap.
15. Return the sealant/air hose (6) and the power plug (7) back in
their original locations.
16. If the flat tire was able to inflate
to the recommended inflation
pressure, remove the
maximum speed label from the
sealant canister and place it in
a highly visible location. Do not
exceed the speed on this label
until the damaged tire is
repaired or replaced.
17. Return the equipment to its original storage location in the
vehicle.
18. Immediately drive the vehicle 8 km (5 mi) to distribute the
sealant in the tire.
19. Stop at a safe location and check the tire pressure. Refer
to Steps 1–11 under “Using the
Tire Sealant and Compressor
Kit without Sealant to Inflate a
Tire (Not Punctured).”

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
Vehicle Care 289
If the tire pressure has fallen
more than 68 kPa (10 psi)
below the recommended
inflation pressure, stop driving
the vehicle. The tire is too
severely damaged and the tire
sealant cannot seal the tire.
SeeRoadside Assistance
Program 0334.
If the tire pressure has not
dropped more than 68 kPa
(10 psi) from the recommended
inflation pressure, use the
compressor kit to inflate the tire
to the recommended inflation
pressure.
20. Wipe off any sealant from the wheel, tire, and vehicle.
21. Dispose of the used sealant canister and sealant/air hose
(6) assembly at a local dealer
or in accordance with local
state codes and practices.
22. Replace it with a new canister available from your dealer.
23. After temporarily sealing a tire using the tire sealant and
compressor kit, take the vehicle to an authorized dealer
within 161 km (100 mi) of
driving to have the tire repaired
or replaced.
Using the Tire Sealant and
Compressor Kit without
Sealant to Inflate a Tire (Not
Punctured)
To use the air compressor to inflate
a tire with air only and not sealant:
If a tire goes flat, avoid further tire
and wheel damage by driving slowly
to a level place. Turn on the hazard
warning flashers. See
Hazard
Warning Flashers 0151. See
If a Tire Goes Flat 0284 for
other important safety warnings.
1. Remove the tire sealant and compressor kit from its storage
location. See Storing the Tire
Sealant and Compressor
Kit 0291.
2. Unwrap the air only hose (5) and the power plug (7).
3. Place the kit on the ground. Make sure the tire valve stem
is positioned close to the
ground so the hose will
reach it.
4. Remove the tire valve stem cap from the flat tire by turning
it counterclockwise.
5. Attach the air only hose (5) onto the tire valve stem by
turning it clockwise until it is
tight.
6. Plug the power plug (7) into the accessory power outlet in the
vehicle. Unplug all items from
other accessory power outlets.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
290 Vehicle Care
If the vehicle has an accessory
power outlet, do not use the
cigarette lighter.
If the vehicle only has a
cigarette lighter, use the
cigarette lighter.
Do not pinch the power plug
cord in the door or window.
7. Start the vehicle. The vehicle must be running while using
the air compressor.
8. Turn the selector switch (2) counterclockwise to the Air
Only position.
9. Press the on/off button (1) to turn the compressor on.
The compressor will inflate the
tire with air only.
10. Inflate the tire to the recommended inflation
pressure using the pressure
gauge (4). The recommended
inflation pressure can be found
on the Tire and Loading
Information label. See Tire
Pressure 0271. The pressure gauge (4) may
read higher than the actual tire
pressure while the compressor
is on. Turn the compressor off
to get an accurate reading. The
compressor may be turned on/
off until the correct pressure is
reached. If the tire is inflated
higher than the recommended
pressure, press the pressure
relief button (3), if equipped,
until the proper pressure
reading is reached. This option
is only functional when using
the air only hose (5).
11. Press the on/off button (1) to turn the tire sealant and
compressor kit off.
Be careful while handling the
tire sealant and compressor kit
as it could be warm after
usage.
12. Unplug the power plug (7) from the accessory power outlet in
the vehicle. 13. Disconnect the air only
hose (5) from the tire valve
stem, by turning it
counterclockwise, and replace
the tire valve stem cap.
14. Return the air only hose (5) and the power plug (7) back to
their original locations.
15. Return the equipment to its original storage location in the
vehicle.
Removal and Installation of the
Sealant Canister
To remove the sealant canister:
1. Remove the plastic cover.