Transmission BUICK LACROSSE 2013 Service Manual

Black plate (37,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
Vehicle Care 10-37
J-CaseFuses Usage
25 Rear Heated Seats
26 Antilock Brake System Pump
27 Electric Park Brake
28 Rear Window Defogger
41 Brake Vacuum Pump
42 Cooling Fan K2
43 Not Used
44 Transmission Auxiliary Oil Pump
(eAssist)
45 Cooling Fan K1
59 AIR Pump
Mini Fuses Usage 1 Transmission Control Module —
Battery Mini Fuses Usage
2 Engine Control Module Battery
3 Air Conditioning Compressor Clutch
5 Engine Control Module Run/Crank
8 Ignition Coils —
Even (Six Cylinder
Engine), Ignition
Coils —All (Four
Cylinder Engine)
9 Ignition Coils —Odd
(Six Cylinder
Engine)
10 Engine Control Module—Switched
Battery (from Engine
Control Module
Relay) Mini Fuses Usage
11 Six Cylinder Engine: Post Catalytic
Converter Oxygen
Sensor Heater,
Mass Air Flow
Sensor, Flex Fuel
Sensor, Secondary
Air Induction
Solenoid
13 Run/Crank for Transmission
Control Module and
Fuel System Control
Module/Chassis
Control Module
(eAssist)
14 Cabin Heater Coolant Pump
(eAssist)
15 Motor Generator Unit Coolant Pump
(eAssist)

Black plate (39,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
Vehicle Care 10-39
Mini Fuses Usage53 Run/Crank for Inside Rearview Mirror,
Rear Vision Camera,
Air Quality Sensor,
Aero Shutter Motor
54 Run/Crank for: Heating, Ventilation
and Air
Conditioning,
Headlamp Switch
55 Outside Rearview Mirror, Universal
Garage Door
Opener, Front
Window Switches
56 Windshield Washer
60 Heated Mirror
62 Canister Vent
64 Adaptive Forward Lighting (AFL)
Module—Battery
65 Not Used Mini Fuses Usage
66 AIR Solenoid (eAssist)
67 Fuel System Control Module
69 Regulated Voltage Control Sensor
70 Ultrasonic Parking Assist/Side Blind
Zone/Lane
Departure Warning/
Rain Sensor
71 Passive Entry/ Passive Start
Mini Relays Usage 7 Engine Control Module
9 Cooling Fan
13 Cooling Fan
15 Run/Crank
16 AIR Pump Mini Relays Usage
17 Rear Window Defogger
Micro
Relays Usage
1 Air Conditioning Compressor Clutch
2 Starter
4 Wiper Speed
5 Wiper Control
6 Cabin Heater Coolant Pump
(eAssist)
10 Cooling Fan
14 Headlamp Low Beam
Ultra Micro Relays Usage
11 Transmission Auxiliary Oil Pump
(eAssist)

Black plate (47,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
Vehicle Care 10-47
is certified to carry. The speed
rating is the maximum speed a
tire is certified to carry a load.
Tire Terminology and
Definitions
Air Pressure:The amount of
air inside the tire pressing
outward on each square inch of
the tire. Air pressure is
expressed in kPa (kilopascal)
or psi (pounds per square inch).
Accessory Weight
:The
combined weight of optional
accessories. Some examples of
optional accessories are
automatic transmission, power
steering, power brakes, power
windows, power seats, and air
conditioning.
Aspect Ratio
:The relationship
of a tire's height to its width. Belt
:A rubber coated layer of
cords between the plies and the
tread. Cords may be made from
steel or other reinforcing
materials.
Bead
:The tire bead contains
steel wires wrapped by steel
cords that hold the tire onto
the rim.
Bias Ply Tire
:A pneumatic tire
in which the plies are laid at
alternate angles less than
90 degrees to the centerline of
the tread.
Cold Tire Pressure
:The
amount of air pressure in a tire,
measured in kPa (kilopascal)
or psi (pounds per square inch)
before a tire has built up heat
from driving. See Tire Pressure
on page 10‑49.
Curb Weight
:The weight of a
motor vehicle with standard and
optional equipment including the maximum capacity of fuel, oil,
and coolant, but without
passengers and cargo.
DOT Markings
:A code molded
into the sidewall of a tire
signifying that the tire is in
compliance with the U.S.
Department of Transportation
(DOT) Motor Vehicle Safety
Standards. The DOT code
includes the Tire Identification
Number (TIN), an alphanumeric
designator which can also
identify the tire manufacturer,
production plant, brand, and
date of production.
GVWR
:Gross Vehicle Weight
Rating. See Vehicle Load Limits
on page 9‑10.
GAWR FRT
:Gross Axle Weight
Rating for the front axle. See
Vehicle Load Limits on
page 9‑10.

Black plate (63,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
Vehicle Care 10-63
{WARNING
Driving on a flat tire will cause
permanent damage to the tire.
Re-inflating a tire after it has been
driven on while severely
underinflated or flat may cause a
blowout and a serious crash.
Never attempt to re-inflate a tire
that has been driven on while
severely underinflated or flat.
Have your dealer or an authorized
tire service center repair or
replace the flat tire as soon as
possible.
{WARNING
Lifting a vehicle and getting under
it to do maintenance or repairs is
dangerous without the
appropriate safety equipment and
training. If a jack is provided with
the vehicle, it is designed only for(Continued)
WARNING (Continued)
changing a flat tire. If it is used for
anything else, you or others could
be badly injured or killed if the
vehicle slips off the jack. If a jack
is provided with the vehicle, only
use it for changing a flat tire.
If a tire goes flat, avoid further tire
and wheel damage by driving slowly
to a level place, well off the road,
if possible. Turn on the hazard
warning flashers. See Hazard
Warning Flashers on page 6‑4.
{WARNING
Changing a tire can be
dangerous. The vehicle can slip
off the jack and roll over or fall
causing injury or death. Find a
level place to change the tire. To
help prevent the vehicle from
moving:
1. Set the parking brake firmly.
2. Put an automatic transmission 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 on both sides of the tire at the
opposite corner of the tire
being changed.

Black plate (91,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
Vehicle Care 10-91
.Is the proper towing equipment
going to be used? See your
dealer or trailering professional
for additional advice and
equipment recommendations.
.Is the vehicle ready to be
towed? Just as preparing the
vehicle for a long trip, make sure
the vehicle is prepared to be
towed.
Dinghy Towing
Notice:If the vehicle is towed
with all four wheels on the
ground, the drivetrain components could be damaged.
The repairs would not be covered
by the vehicle warranty. Do not
tow the vehicle with all four
wheels on the ground.
The vehicle was not designed to be
towed with all four wheels on the
ground. If the vehicle must be
towed, a dolly should be used. See
the following information on dolly
towing.
Dolly Towing from the Front
(Front-Wheel Drive)
Vehicles with front-wheel drive can
be dolly towed from the front.
Use the following procedure to dolly
tow the vehicle from the front:
1. Attach the dolly to the tow
vehicle following the dolly
manufacturer instructions.
2. Drive the front wheels onto the dolly.
3. Shift the transmission to P (Park).
4. Firmly set the parking brake.
5. Use an adequate clamping device designed for towing to
ensure that the front wheels are
locked into the straight-ahead
position.
6. Secure the vehicle to the dolly following the manufacturer
instructions.
7. Release the parking brake only after the vehicle being towed is
firmly attached to the towing
vehicle.
8. Turn the ignition to OFF.

Black plate (3,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
Service and Maintenance 11-3
for more than a year. The engine oil
and filter must be changed at least
once a year and the oil life system
must be reset. Your trained dealer
technician can perform this work.
If the engine oil life system is reset
accidentally, service the vehicle
within 5 000 km/3,000 mi since the
last service. Reset the oil life
system when the oil is changed.
SeeEngine Oil Life System on
page 10‑13.
Tire Rotation and Required
Services Every 12 000 km/
7,500 mi
Rotate the tires, if recommended for
the vehicle, and perform the
following services. See Tire
Rotation on page 10‑55.
.Check engine oil level and oil
life percentage. If needed,
change engine oil and filter, and
reset oil life system. See Engine
Oil on page 10‑11 andEngine
Oil Life System on page 10‑13.
.Check engine coolant level. See
Engine Coolant on page 10‑18.
.Check windshield washer fluid
level. See Washer Fluid on
page 10‑24.
.Visually inspect windshield wiper
blades for wear, cracking,
or contamination. See Exterior
Care on page 10‑92. Replace
worn or damaged wiper blades.
See Wiper Blade Replacement
on page 10‑29.
.Check tire inflation pressures.
See Tire Pressure on
page 10‑49.
.Inspect tire wear. See Tire
Inspection on page 10‑55.
.Visually check for fluid leaks.
.Inspect engine air cleaner filter.
See Engine Air Cleaner/Filter on
page 10‑15.
.Inspect brake system.
.Visually inspect steering,
suspension, and chassis
components for damaged, loose, or missing parts or signs of
wear. See
Exterior Care on
page 10‑92.
.Check restraint system
components. See Safety System
Check on page 3‑18.
.Visually inspect fuel system for
damage or leaks.
.Visually inspect exhaust system
and nearby heat shields for
loose or damaged parts.
.Lubricate body components. See
Exterior Care on page 10‑92.
.Check starter switch. See Starter
Switch Check on page 10‑28.
.Check automatic transmission
shift lock control function. See
Automatic Transmission Shift
Lock Control Function Check on
page 10‑28.
.Check ignition transmission lock.
See Ignition Transmission Lock
Check on page 10‑29.

Black plate (4,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
11-4 Service and Maintenance
.Check parking brake and
automatic transmission park
mechanism. SeePark Brake and
P (Park) Mechanism Check on
page 10‑29.
.Check accelerator pedal for
damage, high effort, or binding.
Replace if needed.
.Visually inspect gas strut for
signs of wear, cracks, or other
damage. Check the hold open
ability of the strut. See your
dealer if service is required.
.Check tire sealant expiration
date, if equipped. See Tire
Sealant and Compressor Kit
(With Pressure Relief Button) on
page 10‑64 orTire Sealant and
Compressor Kit (With Pressure
Deflation Button) on page 10‑71.
.Inspect sunroof track and seal,
if equipped. See Sunroof on
page 2‑19.

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 (3,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
Technical Data 12-3
ApplicationCapacities
Metric English
Fuel Tank
2.4L L4 Engine 60.0 L 15.8 gal
3.6L V6 Engine, AWD 74.0 L 19.5 gal
3.6L V6 Engine, FWD 70.5 L 18.6 gal
Wheel Nut Torque 150 Y110 lb ft
All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this
manual. Recheck fluid level after filling.
Engine Specifications
Engine VIN CodeTransmission Spark Plug Gap
2.4L L4 Engine RAutomatic 0.9 mm (0.035 in)
3.6L V6 Engine 3Automatic 1.10 mm (0.043 in)

Black plate (9,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
Customer Information 13-9
.Alternative Service:If
assistance cannot be provided
right away, the Roadside
Assistance advisor may give
permission to get local
emergency road service. You will
receive payment, up to $100,
after sending the original receipt
to Roadside Assistance.
Mechanical failures may be
covered, however any cost for
parts and labor for repairs not
covered by the warranty are the
owner responsibility.
Roadside Assistance
Program (Mexico)
As a new owner, your vehicle is
automatically enrolled in the
Roadside Assistance program. The
services are available at no cost
under the terms and conditions of
the program. The Roadside
Assistance program is not part of,
or included, in the coverage
provided by the new vehicle limited
warranty. Roadside Assistance provides
assistance to the driver and
passengers while driving the vehicle
within your city of residence or on
any passable road in Mexico, the
United States, and Canada.
Services are subject to the
limitations described in the following
pages. Program coverage varies by
country.
Roadside Assistance is available
24 hours a day, 365 days of
the year.
This program expires two years
from the date of the invoice for the
vehicle, regardless of vehicle
mileage and changes in vehicle
ownership.
For more information about the
renewal of this program at the end
of its term, contact the Buick
Customer Assistance Center at
01-800-466-0818.
Services Provided
.Flat Tire Change: If unable to
change a flat tire, Roadside
Assistance will provide towing
service to the nearest authorized
Buick dealership. It is the
owner's responsibility for the
repair or replacement of the tire.
This service is limited to the
transfer of the vehicle to the
repair facility.
.Emergency Fuel Delivery:
Delivery of enough fuel for the
vehicle to get to the nearest
service station.
.Lock-Out Service: Service to
unlock the vehicle if you are
locked out.
.Battery Jump Start: Service to
jump start a dead battery.
.*Emergency Messages:
Transmission of urgent phone
messages.
.*Emergency Calls: Call for
emergency services.