2011 BUICK LACROSSE transmission

New Vehicle Limited Warranty 5
Exclusions:Excluded from the
powertrain coverage are sensors,
wiring, connectors, engine radiator,
coolant hoses, coolant and heater
core. Coverage on the engine
cooling system begins at the inlet to
the water pump and ends with the
thermostat housing and/or outlet
that attaches to the return hose.
Also excluded is the starter motor,
entire pressurized fuel system
(in-tank fuel pump, pressure lines,
fuel rail(s), regulator, injectors and
return line) as well as the Engine/
Powertrain Control Module and/or
module programming.
Transmission/Transaxle Coverage
includes: All internally lubricated
parts, case, torque converter,
mounts, seals and gaskets as well
as any electrical components
internal to the transmission/
transaxle. Also covered are any
actuators directly connected to the
transmission (slave cylinder, etc.). Exclusions:
Excluded from the
powertrain coverage are
transmission cooling lines, hoses,
radiator, sensors, wiring and
electrical connectors. Also excluded
are the clutch and pressure plate as
well as any Transmission Control
Module and/or module
programming.
Transfer Case Coverage includes:
All internally lubricated parts, case,
mounts, seals and gaskets as well
as any electrical components
internal to the transfer case. Also
covered are any actuators directly
connected to the transfer case as
well as encoder motor.
Exclusions: Excluded from the
powertrain coverage are transfer
case cooling lines, hoses, radiator,
sensors, wiring, electrical
connectors as well as the transfer
case control module and/or module
programming. Drive Systems Coverage
includes:
All internally lubricated
parts, final drive housings, axle
shafts and bearings, constant
velocity joints, propeller shafts and
universal joints. All mounts,
supports, seals, gaskets as well as
any electrical components internal
to the drive axle. Also covered are
any actuators directly connected to
the drive axle (i.e.: front differential
actuator, etc.).
Exclusions: Excluded from the
powertrain coverage are all wheel
bearings, drive wheel front and rear
hub bearings, locking hubs, drive
system cooling, lines, hoses,
radiator, sensors, wiring and
electrical connectors related to drive
systems as well as any drive system
control module and/or module
programming.

Things to Know About the New Vehicle Limited Warranty 13
Warranty Repairs–
Component Exchanges
In the interest of customer
satisfaction, GM may offer
exchange service on some vehicle
components. This service is
intended to reduce the amount of
time your vehicle is not available for
use due to repairs. Components
used in exchange are service
replacement parts which may be
new, remanufactured, reconditioned,
or repaired, depending on the
component involved.
All exchange components used
meet GM standards and are
warranted the same as new
components. Examples of the types
of components that might be
serviced in this fashion include:
engine and transmission
assemblies, instrument cluster
assemblies, radios, compact disc
players, tape players, batteries, and
powertrain control modules.
Warranty Repairs –Recycled
Materials
Environmental Protection Agency
(EPA) guidelines and GM support
the capture, purification, and reuse
of automotive air conditioning
refrigerant gases and engine
coolant. As a result, any repairs GM
may make to your vehicle may
involve the installation of purified
reclaimed refrigerant and coolant.
Tire Service
Any authorized Buick or tire dealer
for your brand of tires can assist you
with tire service. If, after contacting
one of these dealers, you need
further assistance or you have
questions, contact Buick Customer
Assistance Center. The toll-free
telephone numbers are listed under
Customer Assistance Offices on
page 34.
After-Manufacture
“Rustproofing”
Your vehicle was designed and built
to resist corrosion. Application of
additional rust-inhibiting materials is
neither necessary nor required
under the Sheet Metal Coverage.
GM makes no recommendations
concerning the usefulness or value
of such products.
Application of after-manufacture
rustproofing products may create an
environment which reduces the
corrosion resistance built into your
vehicle. Repairs to correct damage
caused by such applications are not
covered under your New Vehicle
Limited Warranty.
Paint, Trim, and Appearance
Items
Defects in paint, trim, upholstery,
or other appearance items are
normally corrected during new
vehicle preparation. If you find any
paint or appearance concerns,
advise your dealer as soon as

18 Emission Control Systems Warranty
The emission warranty on your
vehicle is issued in accordance with
the U.S. Federal Clean Air Act.
Defects in material or workmanship
in GM emission parts may also be
covered under the New Vehicle
Limited Warranty
Bumper-to-Bumper coverage. There
may be additional coverage on GM
diesel engine vehicles. In any case,
the warranty with the broadest
coverage applies.
What Is Covered
The parts covered under the
emission warranty are listed under
Emission Warranty Parts List on
page 23
How to Determine the
Applicable Emissions Control
System Warranty
State and Federal agencies may
require different emission control
system warranty depending on:
.Whether the vehicle conforms to
regulations applicable to light
duty or heavy duty emission
control systems.
.Whether the vehicle conforms to
or is certified for California
regulations in addition to U.S.
EPA Federal regulations.
All vehicles are eligible for Federal
Emissions Control System Warranty
Coverage. If the emissions control
label contains language stating the
vehicle conforms to California
regulations, the vehicle is also
eligible for California Emissions
Control System Warranty Coverage.
Federal Emission Control
System Warranty
Federal Warranty Coverage
.Car or Light Duty Truck with a
Gross Vehicle Weight
Rating (GVWR) of 8,500 lbs.
or less
‐ 2 years or 24,000 miles and
8 years or 80,000 miles for the
catalytic converter, vehicle/
powertrain control module,
transmission control module or
other onboard emissions
diagnostic device, including
emission-related software,
whichever comes first.
.Light Duty Truck equipped with
Heavy Duty Gasoline Engine
and with a Gross Vehicle Weight
Rating (GVWR) greater than
8,500 lbs.
‐5 years or 50,000 miles,
whichever comes first.

Emission Control Systems Warranty 21
California Emission Defect and
Emission Performance Warranty
Coverage
For cars and trucks with light duty or
medium duty emissions:
.For 3 years or 50,000 miles
(5 years or 50,000 miles for
Duramax Diesel), whichever
comes first:
‐If your vehicle fails a smog
check inspection, GM will
make all necessary repairs
and adjustments to ensure
that your vehicle passes the
inspection. This is your
Emission Control System
Performance Warranty.
‐ If any emission related part on
your vehicle is defective, GM
will repair or replace it. This is
your Short-term Emission
Defects Warranty.
.For 7 years or 70,000 miles,
whichever comes first:
‐If an emission related part
listed in this booklet specially
noted with coverage for
7 years or 70,000 miles is
defective, GM will repair or
replace it. This is your
Long-term Emission Control
System Defects Warranty.
.For 8 years or 80,000 miles,
whichever comes first:
‐If the catalytic converter,
vehicle/powertrain control
module, transmission control
module or other onboard
emissions diagnostic device,
including emissions related
software, is found to be
defective, GM will repair or
replace it under the Federal
Emission Control System
Warranty.
.For 8 years or 100,000 miles,
whichever comes first for
California Low Emission
Vehicle 2 (LEV2) vehicles
equipped with option code NUA:
‐If an emission related part
listed in this booklet specially
noted with 7 years/
70,000 miles or 8 years/
80,000 miles is defective, GM
will repair or replace it. This is
your Long-term Emission
Control System Defect
Warranty.
.For 15 years or 150,000 miles,
whichever comes first for a
Partial Zero Emission
Vehicle (PZEV):
‐If any emission related part*
listed in this booklet is
defective, GM will repair or
replace it. This is your (PZEV)
Emission Control System
Defects Warranty.

24 Emission Warranty Parts List
Transmission Controls and
Torque Management
GMLAN (CAN) Communications
Circuit
Manual Transmission Clutch Switch
Park/Neutral Switch
Torque Converter Clutch Solenoids
Torque Converter Clutch Switch
Transmission Control Module **
Transmission Fluid Temperature
Sensor
Transmission Gear Selection Switch
(Diesel)
Transmission Internal Mode Switch *
Transmission Pressure Control
Solenoids *
Transmission Pressure Switches *
Transmission Shift Solenoids *
Transmission Speed Sensor
(Input) *
Transmission Speed Sensor
(Output)Fuel Management System
Common Rail Assembly (6.6L
DURAMAX
®Diesel) *
Diesel Fuel Injection Pump *
Diesel Fuel Injector Control
Module –EDU (6.6L DURAMAX
®
Diesel) *
Direct Fuel Injector Assembly
(6.6L DURAMAX
®Diesel) *
Fuel Injector
Fuel Pressure Regulator
Fuel Pressure Sensor
Fuel Rail Assembly *
Fuel Temperature Sensor
Function Block (6.6L DURAMAX
®
Diesel)
High Pressure Fuel Pump (SIDI) *
Air Management System
Active Air Shutters
Air Cleaner
Air Cleaner Resonator
Air Intake Ducts Charge Air Control Actuator
Charge Air Control Solenoid Valve
Charge Air Control Valve
Charge Air Cooler *
Charge Air Cooler Fan
Idle Air Control Valve
Idle Speed Control Motor
Intake Air Heater
Intake Manifold *
Intake Manifold Gasket (7/70 Only
with 3.5L LZE or 3.9L LGD *)
Intake Manifold Heater
Intake Manifold Tuning Valve
Supercharger Assembly *
Throttle Body * (Replacement Only)
Throttle Body Heater
Turbocharger Assembly *
Turbocharger Boost Sensor
Turbocharger Oil Separator
Vacuum Pump (6.6L DURAMAX
®
Diesel)

26 Emission Warranty Parts List
Hybrid
Auxiliary Transmission Fluid Pump *
Battery Cooling Fan
Battery Pack Control
Module (BPCM) **
Battery Pack Current Sensor
Brake Pedal Travel Sensor
Drive Motors *
Drive Motor Resolvers *
Drive Motor/Generator Control
Module (DMCM‐HCP,
MCPA, MCPB) **
Electro-Hydraulic Brake Control
Module (EBCM) **
Energy Storage Control Module **
Fuel Filler Pipe Adapter Seal
Hybrid Batteries *
Hybrid Battery Temperature Sensors
Hybrid Battery Voltage Sensors SGCM Coolant Circuit (fan, fan
relay and pump)
Starter Generator *
Starter Generator Control
Module (SGCM) **
Transmission Substrate
Temperature Sensor
Miscellaneous Items Used with
Above Components are Covered
Belts
Boots
Clamps
Connectors
Ducts
Fittings
Gaskets
Grommets
Hoses
HousingsMounting Hardware
Pipes
Pulleys
Sealing Devices
Springs
Tubes
Wiring and Relays
Parts specified in your maintenance
schedule that require scheduled
replacement are covered up to their
first replacement interval or the
applicable emission warranty
coverage period, whichever comes
first. If failure of one of these parts
results in failure of another part,
both will be covered under the
Emission Control System Warranty.
For detailed information concerning
specific parts covered by these
emission control system warranties,
ask your dealer.