engine BUICK LACROSSE 2011 Get To Know Guide

2 Warranty Coverage at a Glance
The warranty coverages are
summarized below.
New Vehicle Limited Warranty
Bumper-to-Bumper
(Includes Tires)
.Coverage is for the first 4 years
or 50,000 miles, whichever
comes first.
Powertrain
.Coverage is for the first 5 years
or 100,000 miles, whichever
comes first.
Sheet Metal
.Corrosion coverage is for the
first 4 years or 50,000 miles,
whichever comes first.
.Rust-through coverage is for the
first 6 years, unlimited mileage.
Emission Control System
Warranty
For light duty truks, see “How to
Determine the Applicable Emissions
Control System Warranty” under
Emission Control Systems Warranty
on page 18 for more information.
Federal
.Gasoline Engines
‐ Defects and performance for
cars and light duty truck
emission control systems are
covered for the first 2 years or
24,000 miles, whichever
comes first. From the first
2 years or 24,000 miles to
4 years or 50,000 miles
defects in material or
workmanship continue to be covered under the New
Vehicle Limited Warranty
Bumper-to-Bumper coverage
explained previously. Specified
major components are
covered for the first 8 years or
80,000 miles, whichever
comes first.
‐ Defects and performance for
heavy duty truck emission
control systems are covered
for the first 5 years or
50,000 miles, whichever
comes first.
.6.6L DURAMAX®Diesel
Engines are covered for the first
5 years or 50,000 miles,
whichever comes first.

Warranty Coverage at a Glance 3
California
.Gasoline Engines
‐Defects and performance for
cars and trucks with light duty
or medium duty emission
control systems are covered
for the first 3 years or
50,000 miles, whichever
comes first.
‐ Specified components for cars
or light duty trucks equipped
with light duty or medium duty
truck emission control systems
are covered for the first
7 years or 70,000 miles,
whichever comes first.
.6.6L DURAMAX®Diesel
Engines
‐ Defects and performance for
the emission control systems
are covered for the first
5 years or 50,000 miles,
whichever comes first.
‐ Specified components for the
emission control system are
covered for the first 7 years or
70,000 miles, whichever
comes first.
Important: Some California
emission vehicles may have special
coverages longer than those listed
here. See “California Emission
Control System Warranty” under
Emission Control Systems Warranty
on page 18. Noise Emissions
.Coverage is for applicable
vehicles weighing over
10,000 lbs based on the Gross
Vehicle Weight Rating (GVWR)
only, for the entire life of the
vehicle.

4 New Vehicle Limited Warranty
GM will provide for repairs to the
vehicle during the warranty period in
accordance with the following terms,
conditions, and limitations.
What Is Covered
Warranty Applies
This warranty is for GM vehicles
registered in the United States and
normally operated in the United
States or Canada, and is provided
to the original and any subsequent
owners of the vehicle during the
warranty period.
Repairs Covered
The warranty covers repairs to
correct any vehicle defect related to
materials or workmanship occurring
during the warranty period. Needed
repairs will be performed using new
or remanufactured parts.
No Charge
Warranty repairs, including towing,
parts, and labor, will be made at no
charge.Obtaining Repairs
To obtain warranty repairs, take the
vehicle to a Buick dealer facility
within the warranty period and
request the needed repairs.
A reasonable time must be allowed
for the dealer to perform necessary
repairs.
Warranty Period
The warranty period for all
coverages begins on the date the
vehicle is first delivered or put in
use and ends at the expiration of
the coverage period.
Bumper-to-Bumper Coverage
The complete vehicle is covered for
4 years or 50,000 miles, whichever
comes first, except for other
coverages listed here under
“What
Is Covered” and those items listed
under “What Is Not Covered” later in
this section. Powertrain Coverage
The powertrain is covered for
5 years or 100,000 miles, whichever
comes first, except for other
coverages listed here under
“What
is Covered” and those items listed
under “What is Not Covered” later in
this section.
Engine Coverage includes: All
internally lubricated parts, engine oil
cooling hoses, lines and radiators.
Also included are all actuators and
electrical components internal to
the engine (i.e.: Active Fuel
Management Valve Lifter Oil
Manifold, etc.) cylinder head, block,
timing gears, timing chain, timing
cover, oil pump/oil pump housing,
OHC carriers, valve covers, oil pan,
seals, gaskets, manifolds, flywheel,
water pump, harmonic balancer,
engine mount, turbocharger and
supercharger. Timing belts are
covered until the first scheduled
maintenance interval.

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 19
.Light Duty Truck equipped with
Heavy Duty Diesel Engine and
with a Gross Vehicle Weight
Rating (GVWR) greater than
8,500 lbs.
‐5 years or 50,000 miles,
whichever comes first.
Federal Emission Defect Warranty
GM warrants to the owner the
following:
.The vehicle was designed,
equipped, and built so as to
conform at the time of sale with
applicable regulations of the
Federal Environmental
Protection Agency (EPA).
.The vehicle is free from defects
in materials and workmanship
which cause the vehicle to fail to
conform with those regulations
during the emission warranty
period. Emission related defects in the
genuine GM parts listed under the
Emission Warranty Parts List,
including related diagnostic costs,
parts, and labor are covered by this
warranty.
Federal Emission Performance
Warranty
Some states and/or local
jurisdictions have established
periodic vehicle Inspection and
Maintenance (I/M) programs to
encourage proper maintenance of
your vehicle. If an EPA-approved
I/M program is enforced in your
area, you may also be eligible for
Emission Performance Warranty
coverage when all of the following
three conditions are met:
.The vehicle has been
maintained and operated in
accordance with the instructions
for proper maintenance and use
set forth in the owner manual
supplied with your vehicle.
.The vehicle fails an
EPA-approved I/M test during
the emission warranty period.
.The failure results, or will result,
in the owner of the vehicle
having to bear a penalty or other
sanctions, including the denial of
the right to use the vehicle,
under local, state, or federal law.
GM warrants that your dealer will
replace, repair, or adjust to GM
specifications, at no charge to you,
any of the parts listed under the
Emission Warranty Parts List on
page 23 which may be necessary to
conform to the applicable emission
standards. Non-GM parts labeled
“Certified to EPA Standards” are
covered by the Federal Emission
Performance Warranty.

20 Emission Control Systems Warranty
California Emission Control
System Warranty
This section outlines the emission
warranty that GM provides for your
vehicle in accordance with the
California Air Resources Board.
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.
This warranty applies if your vehicle
meets both of the following
requirements:
.Your vehicle is registered in
Californiaor other states
adopting California emission
and warranty regulations.*
.Your vehicle is certified for sale
in California as indicated on the
vehicle's emission control
information label. * Important:
Connecticut, Maine,
Maryland, Massachusetts, New
Jersey, New Mexico, Oregon,
Pennsylvania, Rhode Island,
Vermont, and Washington have
California Emissions Warranty
coverage. (New York adopted
California emission standards, but
not the California Emissions
Warranty. The Federal Emissions
Control Warranty applies to all
non-PZEV vehicles in New York.)
California Partial Zero Emission
Vehicles (PZEV) have extended
coverage on all emission related
parts.
Important: California, Connecticut,
Maine, Maryland, Massachusetts,
New Jersey, New Mexico, New
York, Rhode Island, and Vermont
have PZEV Emission Warranty
Coverage. Your Rights and Obligations (For
Vehicles Subject to California
Exhaust Emission Standards)
The California Air Resources Board
and General Motors are pleased to
explain the emission control system
warranty on your vehicle. In
California, new motor vehicles must
be designed, built, and equipped to
meet the State's stringent anti-smog
standards. GM must warrant the
emission control system on your
vehicle for the periods of time and
mileage listed provided there has
been no abuse, neglect, or improper
maintenance of your vehicle. Your
vehicle's emission control system
may include parts such as the fuel
injection system, ignition system,
catalytic converter, and engine
computer. Also included are hoses,
belts, connectors, and other
emission related assemblies.
Where a warrantable condition
exists, GM will repair your vehicle at
no cost to you including diagnosis,
parts, and labor.

Emission Warranty Parts List 23
Emission Warranty Parts List
The emission parts listed here are
covered under the Emission Control
System Warranty. The terms are
explained previously in this section
under the“Federal Emission Control
System Warranty” and the
“California Emission Control System
Warranty”.
Important: Certain parts may be
covered beyond these warranties if
shown with asterisk(s) as follows:
.(*) 7 years/70,000 miles,
whichever comes first, California
Emission Control System
Warranty coverage.
.(**) 8 years/80,000 miles,
whichever comes first, Federal
Emission Control System
Warranty coverage. (Also
applies to California certified
light duty and medium duty
vehicles.)
.(*) and (**) are 8 years/
100,000 miles, whichever comes
first, for California LEV2 vehicles
equipped with option code NUA.
All listed parts 15 years/
150,000 miles, whichever comes
first, on California PZEV (NU6)
vehicles registered in a PZEV state.
The Emission Control System
Warranty obligations do not apply to
conditions resulting from tampering,
abuse, neglect, or improper
maintenance; or any other item
listed under “What Is Not Covered”
under New Vehicle Limited Warranty
on page 4. The “Other Terms”
presented under New Vehicle
Limited Warranty on page 4 also
apply to the emission related
warranties.
Powertrain Control System
ABS Control Module **
Camshaft Position Actuator *
Camshaft Position Actuator Valve
Coolant Level Sensor Data Link Connector
Engine Control Module (ECM) **
Engine Coolant Temperature Sensor
Fuel Control Module **
Intake Air Temperature Sensor
Malfunction Indicator Lamp
Manifold Absolute Pressure Sensor
Mass Air Flow Sensor
Oil Pressure Sensor Active Fuel
Management™
(AFM) only
Oxygen Sensor(s)
Powertrain Control Module (PCM) **
Throttle Position Sensor
Vehicle Control Module (VCM) **
Vehicle Speed Sensor
Wheel Speed Sensor

Emission Warranty Parts List 25
Ignition System
Camshaft Position Sensor(s)
Crankshaft Position Sensor(s)
Glow Plug(s) (Diesel)
Glow Plug Controller (Diesel)
Ignition Coil(s)
Ignition Control Module
Knock Sensor
Spark Plug Wires
Spark Plugs
Catalytic Converter System
Catalytic Converter(s) and Muffler if
attached as assembly * **
Diesel Exhaust Temperature and
Pressure Sensors
Diesel Particulate Filter (DPF) *
Diesel Exhaust (DPF) Indirect Fuel
Injector
Diesel Exhaust Emission Reduction
Fluid Injector
Diesel Exhaust Emission Reduction
Fluid TankDiesel Exhaust NOx Sensors
Exhaust Manifold *
Exhaust Manifold with Catalytic
Converter attached as assembly * **
Exhaust Manifold Gasket
Exhaust Pipes and/or Mufflers
(when located between catalytic
converters and exhaust manifold)
Positive Crankcase Ventilation
(PCV) System
Oil Filler Cap
PCV Filter
PCV Oil Separator
PCV Valve
Exhaust Gas Recirculation (EGR)
System
EGR Feed and Delivery Pipes or
Cast-in Passages
EGR Valve
EGR Valve Cooler
(6.6L DURAMAX
®Diesel) *
EGR Vacuum Pump Assembly
(6.6L DURAMAX
®Diesel)
Secondary Air Injection System
Air Pump
Check Valves
Evaporative Emission Control
System (Gasoline Engines)
Canister
Canister Purge Solenoid Valve
Canister Vent Solenoid
Fuel Feed and Return Pipes and
Hoses
Fuel Filler Cap
Fuel Level Sensor
Fuel Limiter Vent Valve *
Fuel Tank(s) *
Fuel Tank Filler Pipe (with restrictor)
Fuel Tank Vacuum or Pressure
Sensor