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
20 Emission Warranty Parts List
Emission-related defects in the
emission parts listed here are
covered under the Emission Control
System Warranty. The terms are
explained in theEmission Control
Systems Warranty 016 under
“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 for light duty
vehicles. (Also applies to
California certified light duty and
medium duty vehicles.)
All listed parts 15 years/
150,000 miles, whichever comes
first, on California TZEV (NU6)
vehicles registered in a TZEV state
except Hybrid batteries and Hybrid A/C compressors, which are
covered for 10 years/150,000 miles,
whichever comes first.
Powertrain Control System
Accelerator Pedal Position Sensor
Camshaft Position Actuator *
Camshaft Position Actuator Valve
Coolant Sensor
Data Link Connector
Engine Control Module (ECM) **
Engine Temperature Sensor
Flex Fuel Sensor
Fuel Control Module **
Humidity Sensor
Intake Air Temperature Sensor
Malfunction Indicator Lamp
Manifold Absolute Pressure Sensor
Mass Air Flow Sensor
Oil Pressure Sensor
Outside Air Temperature Sensor
Oxygen Sensor(s)
Powertrain Control Module (PCM) **Thermostat
Throttle Position Sensor
Vehicle Speed Sensor
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
Transmission Controls and
Torque Management
Clutch Solenoids and Switches
Control Solenoids and Pressure
Switches
Internal Mode Switch
Park/Neutral Switch
Transmission Control Module **
