catalytic converter BUICK ENVISION 2018 Warranty And Owner Assistance Information

Buick Limited Warranty and Owner Assistance Information (GMNA-Localiz-
ing-U.S.-10999171) - 2018 - crc - 7/31/17
New Vehicle Limited Warranty 9
Damage Due to Insufficient or
Improper Maintenance
Damage caused by failure to follow
the recommended maintenance
schedule intervals and/or failure to
use or maintain proper fluids,
or maintain fluids between
recommended maintenance
intervals, fuel, lubricants,
or refrigerants recommended in the
owner manual is not covered.
Damage Due to Contaminated,
Improper, or Poor Quality Fuel
Poor fuel quality or incorrect fuel
may cause driveability problems
such as hesitation, lack of power,
stalling, or failure to start. They may
also degrade functionality of critical
exhaust emissions components
such as spark plugs, oxygen
sensors, and the catalytic converter.
Damage from poor fuel quality,
water contamination, or if the
vehicle requires premium fuel,
operating the vehicle on gasoline
with a Pump Octane less than a 91
(R+M)/2, may not be covered.Prohibited fuels are: Gasolines
containing any methanol, MMT, an
organometallic octane enhancing
additive, and/or fuels containing
more than 15% ethanol in non-Flex
Fuel Vehicles (FFV).
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, lenses, mirrors, paint, grille,
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 are not covered.
Third Party Externally Connected
Electrical Products
This warranty does not apply to
hardware or software of a third party
device that is connected to the
vehicle or its components, even if
integrated or delivered with the
vehicle. GM is not responsible for
the quality or accuracy of any
information, or service accessed
through or from any third party
device or platform. Software
distributed by GM inside or outside
the vehicle (including, but not limited
to system software or applications)
is not covered by this Warranty. GM
does not warrant that connections
to, from or through the vehicle will
be uninterrupted or error-free. Also,
the user should back-up their data
and information frequently. GM is
not responsible for any loss or
damage to data or information made
available in connection with the use
of the vehicle. In addition, this
Warranty does not apply: (a) to

Buick Limited Warranty and Owner Assistance Information (GMNA-Localiz-
ing-U.S.-10999171) - 2018 - crc - 7/31/17
16 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 List020
How to Determine the
Applicable Emissions Control
System Warranty
State and Federal agencies may
require a 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.
. 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).

Buick Limited Warranty and Owner Assistance Information (GMNA-Localiz-
ing-U.S.-10999171) - 2018 - crc - 7/31/17
18 Emission Control Systems Warranty
California Transitional Zero
Emission Vehicles (TZEV) have
extended coverage on all
emission-related parts.
Note
Referred to as PZEV warranty in
past model years.
Important:California, Connecticut,
Maine, Maryland, Massachusetts,
New Jersey, New York, Oregon,
Rhode Island, and Vermont have
TZEV 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.
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
Control Systems 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 for
vehicles with a Gross Vehicle
Weight Rating (GVWR) of
8,500 lbs. or less:
‐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

Buick Limited Warranty and Owner Assistance Information (GMNA-Localiz-
ing-U.S.-10999171) - 2018 - crc - 7/31/17
Emission Warranty Parts List 21
Transmission Fluid Temperature
Sensor
Transmission Speed Sensors
Vehicle Control System
Integrated Chassis Control Module
(ETRS and Corvette only) **
Vehicle Control Module (VCM) **
Fuel Management System
AFM Exhaust Valves and Controller
Diesel Fuel Injection Pump *
Diesel Direct Fuel Injector and Rail *
HD Duramax Fuel Pressure
Regulator *
HD Duramax Fuel Pipes *
Fuel Injector
Fuel Pressure Regulator
Fuel Pressure Sensor
Fuel Pump Power Module
Fuel Rail Assembly
Fuel Tank Fuel Pump
Fuel Temperature Sensor
High Pressure Fuel Pump (SIDI)Air Management System
Active Aero Shutters and Controller
Air Cleaner
Air Intake Ducts
Charge Air Cooler *
Charge Air Cooler Control
Idle Air Control Valve
Idle Speed Control Motor
Intake Air Heater
Intake Manifold (* for diesel only)
Intake Manifold Gasket
Intake Manifold Tuning Valve
Supercharger *
Throttle Body
Turbocharger *
Turbocharger Pressure Sensor
Turbocharger Vane Position
Sensor *
Turbocharger Vane Position
Solenoid *
Secondary Air Injection System
Air Pump and Check ValvesCatalytic Converter System
Catalytic Converter(s) * **
Diesel Exhaust Emission Reduction
Fluid (DEF) Tank
Diesel Exhaust Aftertreatment
Actuators and Sensors
Diesel Particulate Filter (DPF) *
Exhaust Manifold and Gasket
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
EGR Temperature Sensor
EGR Valve
EGR Valve Cooler *
Evaporative Emission Control
System (Gasoline Engines)
Canister