hood BUICK LACROSSE 2013 User Guide

Black plate (16,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
10-16 Vehicle Care
3.6L V6 Engine AWD
1. Electrical Connector
2. Air Duct Clamp
3. Screws
To inspect or replace the engine air
cleaner/filter:
1. Open the hood. See Hood on
page 10‑5.
2. Disconnect the outlet duct by loosening the air duct clamp (2).
3. Disconnect the electrical connector (1). 4. Remove the screws (3) on top of
the engine air cleaner/filter
housing.
5. Lift the filter cover housing away from the engine air cleaner/filter
housing.
6. Pull out the filter.
7. Inspect or replace the engine air cleaner/filter.
8. Reverse Steps 2–4 to reinstall the filter cover housing.
3.6L V6 Engine FWD
1. Electrical Connector 2. Air Duct Clamp
3. Screws
4. Secondary Air Hose
To inspect or replace the engine air
cleaner/filter:
1. Open the hood. See
Hood on
page 10‑5.
2. Disconnect the outlet duct by loosening the air duct clamp (2).
3. Disconnect the electrical connector (1).
4. Remove the screws (3) on top of the engine air cleaner/filter
housing.
5. Disconnect the secondary air hose (4).
6. Lift the filter cover housing away from the engine air cleaner/filter
housing.
7. Pull out the filter.
8. Inspect or replace the engine air cleaner/filter.

Black plate (18,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
10-18 Vehicle Care
3.6L V6 Engine FWD
1. Engine Cooling Fans (Outof View)
2. Coolant Surge Tank and Pressure Cap
{WARNING
An electric engine cooling fan
under the hood can start up even
when the engine is not running
and can cause injury. Keep
hands, clothing, and tools away
from any underhood electric fan.
{WARNING
Heater and radiator hoses, and
other engine parts, can be very
hot. Do not touch them. If you do,
you can be burned.
Do not run the engine if there is a
leak. If you run the engine, it
could lose all coolant. That could
cause an engine fire, and you
could be burned. Get any leak
fixed before you drive the vehicle.
Notice: Using coolant other than
DEX-COOL
®can cause premature
engine, heater core, or radiator
corrosion. In addition, the engine
coolant could require changing
sooner. Any repairs would not be
covered by the vehicle warranty.
Always use DEX-COOL
(silicate-free) coolant in the
vehicle.
Engine Coolant
The cooling system in the vehicle is
filled with DEX-COOL®engine
coolant mixture. See Recommended
Fluids and Lubricants on page 11‑12
and Maintenance Schedule on
page 11‑2.
The following explains the cooling
system and how to check and add
coolant when it is low. If there is a
problem with engine overheating,
see Engine Overheating on
page 10‑21.
What to Use
{WARNING
Adding only plain water or some
other liquid to the cooling system
can be dangerous. Plain water
and other liquids, can boil before
the proper coolant mixture will.
The coolant warning system is set
for the proper coolant mixture.
With plain water or the wrong
(Continued)

Black plate (21,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
Vehicle Care 10-21
4. With the coolant surge tank capoff, 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.
Notice: 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
2.4L L4 Engine
There is a engine coolant
temperature warning light on the
instrument cluster that indicates an
overheated engine condition. See
Engine Coolant Temperature
Warning Light on page 5‑22 for
more information.
3.6L V6 Engine
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
on page 5‑13 andEngine Coolant
Temperature Warning Light on
page 5‑22 for more information.
If the decision is made not to lift the
hood when this warning appears,
get service help right away. See
Roadside Assistance Program (U.S.
and Canada) on page 13‑7 or
Roadside Assistance Program
(Mexico) on page 13‑9.
If the decision is made to lift the
hood, make sure the vehicle is
parked on a level surface.
Then check to see if the engine
cooling fans are running. If the
engine is overheating, the fans should be running. If not, do not
continue to run the engine and have
the vehicle serviced.
Notice:
Engine damage from
running the engine without
coolant is not covered by the
warranty.
If Steam Is Coming from the
Engine Compartment
See Overheated Engine Protection
Operating Mode on page 10‑22 for
information on driving to a safe
place in an emergency.
If No Steam Is Coming from
the Engine Compartment
If an engine overheat warning is
displayed but no steam can be seen
or heard, the problem might not be
too serious. Sometimes the engine
can get a little too hot when the
vehicle:
.Climbs a long hill on a hot day.
.Stops after high-speed driving.
.Idles for long periods in traffic.

Black plate (32,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
10-32 Vehicle Care
1. Low-Beam Headlamp/DRL
2. High-Beam Headlamp
3. Parking/Turn Signal Lamp
To replace one of these bulbs:
1. Open the hood. SeeHood on
page 10‑5.
2. If replacing a headlamp bulb, remove the dust cover from the
back of the headlamp housing
by turning counterclockwise
one-quarter turn. 3. If replacing a turn signal/parking
lamp bulb on a non-eAssist
vehicle, remove the close out
panel push pins and close out
panel covering the bulb socket.
4. Remove the bulb socket from the headlamp by turning
counterclockwise
one-quarter turn.
5. Remove the bulb from the socket. If replacing the high/
low-beam bulb, pry the two clips
on either end of the bulb and pull
straight out.
6. Install the new bulb in the socket.
7. Install the bulb socket by turning clockwise one-quarter turn.
8. If a headlamp bulb was replaced, install the dust cover in
the back of the headlamp
housing by turning clockwise
one-quarter turn.
Uplevel Headlamp Assembly
The uplevel model vehicle has a
high intensity discharge (HID) high/
low beam, a dedicated DRL, and a
parking/turn signal lamp on the
headlamp assembly. See High
Intensity Discharge (HID) Lighting
on page 10‑31.
1. DRL Lamp
2. Parking/Turn Signal Lamp
To replace one of these bulbs:
1. Open the hood. See Hood on
page 10‑5.

Black plate (89,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
Vehicle Care 10-89
{WARNING
An electric fan can start up even
when the engine is not running
and can injure you. Keep hands,
clothing and tools away from any
underhood electric fan.
{WARNING
Using a match near a battery can
cause battery gas to explode.
People have been hurt doing this,
and some have been blinded.
Use a flashlight if you need more
light.
Be sure the battery has enough
water. You do not need to add
water to the battery installed in
your new vehicle. But if a battery
has filler caps, be sure the right
amount of fluid is there. If it is low,(Continued)
WARNING (Continued)
add water to take care of that
first. If you do not, explosive gas
could be present.
Battery fluid contains acid that
can burn you. Do not get it on
you. If you accidentally get it in
your eyes or on your skin, flush
the place with water and get
medical help immediately.
{WARNING
Fans or other moving engine
parts can injure you badly. Keep
your hands away from moving
parts once the engine is running.
5. Connect one end of the red positive (+) cable to the
positive (+) terminal on the
discharged battery. 6. Connect the other end of the red
positive (+) cable to the
positive (+) terminal of the good
battery.
7. Connect one end of the black negative (–) cable to the
negative (–) terminal of the good
battery.
8. Connect the other end of the black negative (–) cable to the
negative (–) grounding point for
the discharged battery.
9. Start the engine in the vehicle with the good battery and run
the engine at idle speed for at
least four minutes.
10. Try to start the vehicle that had the dead battery. If it will not
start after a few tries, it
probably needs service.
Notice: If the jumper cables are
connected or removed in the
wrong order, electrical shorting
may occur and damage the
vehicle. The repairs would not be
covered by the vehicle warranty.

Black plate (95,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
Vehicle Care 10-95
leaks, cracks, chafing, etc. Visually
check constant velocity joints,
rubber boots, and axle seals for
leaks.
Body Component Lubrication
Lubricate all key lock cylinders,
hood hinges, liftgate hinges, and the
steel fuel door hinge 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
Use plain water to flush dirt and
debris from the vehicle's underbody.
Your dealer or an underbody car
washing system can do this. If not
removed, rust and corrosion can
develop.
Sheet Metal Damage
If the vehicle is damaged and
requires sheet metal repair or
replacement, make sure the body
repair shop applies anti-corrosionmaterial 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.
Interior Care
To prevent dirt particle abrasions,
regularly clean the vehicle's interior.
Immediately remove any soils. Note
that newspapers or dark garments
that can transfer color to home
furnishings can also permanently
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
hand lotions, sunscreen, and insect
repellent from all interior surfaces or
permanent damage may result.
Your dealer may have products for
cleaning the interior. Use cleaners
specifically designed for the
surfaces being cleaned to prevent
permanent damage. Apply all
cleaners directly to the cleaning
cloth. Do not spray cleaners directly
on any switches or controls.
Cleaners should be removed
quickly. Never allow cleaners to

Black plate (12,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
11-12 Service and Maintenance
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
UsageFluid/Lubricant
Engine Oil Use only engine oil licensed to the dexos1 specfication, or equivalent, of
the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is
recommended. See Engine Oil on page 10‑11.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant.
See Engine Coolant on page 10‑18.
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid (GM Part No. 88862806, in Canada 88863462).
Windshield Washer Automotive windshield washer fluid that meets regional freeze protection requirements.
Hydraulic Power Steering System DEXRON
®-VI Automatic Transmission Fluid.
Automatic Transmission DEXRON
®-VI Automatic Transmission Fluid.
Key Lock Cylinders Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in Canada 10953474).
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.

Black plate (13,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
Service and Maintenance 11-13
UsageFluid/Lubricant
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 Dielectric Silicone Grease (GM Part No. 12345579, in Canada 10953481).
Maintenance Replacement Parts
Replacement parts identified below by name, part number, or specification can be obtained from your dealer.
Part GM Part Number ACDelco Part Number
Engine Air Cleaner/Filter 55560894 A3128C
Engine Oil Filter 2.4L L4 Engine 12605566 PF457G
3.6L V6 Engine 89017525 PF63
Passenger Compartment Air Filter 13271191 CF176
Spark Plugs 2.4L L4 Engine 12620540 41–108
3.6L V6 Engine 12622561 41–109

Black plate (2,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
12-2 Technical Data
Vehicle Data
Capacities and Specifications
ApplicationCapacities
Metric English
Air Conditioning Refrigerant For the air conditioning system refrigerant type and charge amount, see the refrigerant label under thehood. See your dealer for more information.
Engine Cooling System 2.4L L4 Engine 9.6 L 10.1 qt
3.6L V6 Engine 7.1 L 7.5 qt
Engine Oil with Filter
2.4L L4 Engine 4.7 L 5.0 qt
3.6L V6 Engine 5.7 L 6.0 qt

Black plate (6,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
i-6 INDEX
High Voltage Devices andWiring . . . . . . . . . . . . . . . . . . . . . . . 10-34
High-Beam On Light . . . . . . . . . . . 5-24
Highway Hypnosis . . . . . . . . . . . . . . 9-7
Hill and Mountain Roads . . . . . . . . 9-7
Hill Start Assist (HSA) . . . . . . . . . 9-34
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
How to Wear Safety Belts Properly . . . . . . . . . . . . . . . . . . . . . . 3-13
I
Ignition Positions . . . . . . . . 9-15, 9-17
Ignition Transmission LockCheck . . . . . . . . . . . . . . . . . . . . . . . 10-29
Immobilizer . . . . . . . . . . . . . . . . . . . . 2-13
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . 3-34
Infotainment . . . . . . . . . . . . . . . . . . . . 7-1
Infotainment System . . . . . . . . . . 13-20
Instrument Cluster . . . . . . . . . . . . . . 5-9
Introduction . . . . . . . . . . . . . . . . . . . . . . . iii
J
Jump Starting . . . . . . . . . . . . . . . . . 10-87
K
Key and Lock Messages . . . . . . . 5-36
Keyless Entry Remote (RKE) System . . . . . . . . 2-3
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
L
Labeling, Tire Sidewall . . . . . . . . 10-44
Lamps Daytime Running (DRL) . . . . . . . 6-2
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Exterior Controls . . . . . . . . . . . . . . . 6-1
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . . 6-2
Headlamps, Front Turn Signal, and Parking
Lamps . . . . . . . . . . . . . . . . . . . . 10-31
License Plate . . . . . . . . . . . . . . . 10-33
Malfunction Indicator . . . . . . . . . 5-16
Messages . . . . . . . . . . . . . . . . . . . . 5-36 Lamps (cont'd)
On Reminder . . . . . . . . . . . . . . . . . 5-24
Reading . . . . . . . . . . . . . . . . . . . . . . . 6-6
Sun Visor . . . . . . . . . . . . . . . . . . . . . . 6-6
Lap-Shoulder Belt . . . . . . . . . . . . . 3-14
LATCH System Replacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . 3-47
LATCH, Lower Anchors and
Tethers for Children . . . . . . . . . . 3-39
LED Lighting . . . . . . . . . . . . . . . . . . 10-31
Lighting Adaptive Forward . . . . . . . . . . . . . . 6-3
Entry . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Illumination Control . . . . . . . . . . . . 6-5
LED . . . . . . . . . . . . . . . . . . . . . . . . 10-31
Lights
Airbag Readiness . . . . . . . . . . . . . 5-14
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . 5-19
Brake System Warning . . . . . . . 5-18
Charging System . . . . . . . . . . . . . 5-15
Cruise Control . . . . . . . . . . . . . . . . 5-24
Door Ajar . . . . . . . . . . . . . . . . . . . . . 5-25
Electric Parking Brake . . . . . . . . 5-19