2011 BUICK LACROSSE catalytic converter

New Vehicle Limited Warranty 11
Damage Due to Contaminated or
Poor Quality Fuel
Poor fuel quality or incorrect fuel
may cause driveability problems
such as hesitation, lack of power,
stall, or no start. It may also render
gauges inoperable or degrade
functionality for components such
as spark plugs, oxygen sensors,
and the catalytic converter. Damage
from poor fuel quality, water
contamination, incorrect diesel fuel
or gasoline may not be covered.
It is recommended that gasoline
meet specifications which were
developed by automobile
manufacturers around the world
and contained in the World-Wide
Fuel Charter which is available
from the Alliance of Automobile
Manufacturers at
www.autoalliance.org/
fuel_charter.htm. Gasoline meeting
these specifications could provide
improved driveability and emission
control system performance
compared to other gasoline.Please refer to your Owner Manual
under
“Fuel” , for additional
recommendations, including the use
of TOP TIER Detergent Gasoline.
Additional information can also be
found at: www.toptiergas.com/
index.html.
Damage Due to Impact, Use,
or the Environment
Windshield or glass cracks, chips or
scratches due to impact are not
covered. Windshield cracks will be
covered for the first 12 months,
regardless of mileage if caused by
defects in material or workmanship.
Lights, lens, mirrors, paint, grill,
moldings and trim are not covered
for cracks, chips, scratches, dents,
dings and punctures or tears as a
result of impact with other objects or
road hazards. In addition, cracks,
chips, scratches or other damage to
the face of a radio or instrument
cluster from impact or foreign
objects is not covered. Maintenance
All vehicles require periodic
maintenance. Maintenance
services, such as those detailed in
the owner manual are the owner's
expense. Vehicle lubrication,
cleaning, or polishing are not
covered. Failure of or damage to
components requiring replacement
or repair due to vehicle use, wear,
exposure, or lack of maintenance is
not covered.
Items such as:
.Audio System Cleaning
.Brake Pads/Linings
.Clutch Linings
.Coolants and Fluids
.Filters
.Keyless Entry (or other remote
transmitter/receiver batteries) *
.Limited Slip Rear Axle Service

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.

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 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.

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