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Buick Limited Warranty and Owner Assistance Information (GMNA-Localiz-
ing-U.S-12032535) - 2019 - crc - 6/25/18
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
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
Barometric Pressure Sensor
Camshaft Position Actuator *
Camshaft Position Actuator Valve
Communication Gateway Module
(CGM)**
Coolant Sensor
Crankcase Pressure 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)
NOx Sensor(s)
Powertrain Control Module (PCM) **
Supercharger Inlet Pressure Sensor
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
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Buick Limited Warranty and Owner Assistance Information (GMNA-Localiz-
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22 Emission Warranty Parts List
Positive Crankcase Ventilation
(PCV) System
Oil Filler Cap
PCV Filter
PCV Oil Separator
PCV Valve
Exhaust Gas Recirculation (EGR)
System
EGR Bypass Valve
EGR Feed and Delivery Pipes
EGR Temperature Sensor
EGR Valve
EGR Valve Cooler *
Evaporative Emission Control
System (Gasoline Engines)
Canister
Canister Vent Solenoid
Electronic Leak Check
Pump (ELCP)
Fuel Feed and Purge Line
Fuel Filler Cap
Fuel Level SensorFuel Tank(s) *
Fuel Tank Filler Pipe (with restrictor)
Fuel Tank Vapor and Liquid
Pressure Sensor
Purge Valve
Start/Stop System
Auxiliary Battery or Ultra Capacitor
Battery Isolator
Battery Control Module
Bi-Directional DC-DC Converter
Intelligent Battery Sensor
Multifunction Power Supply
Converter
Transmission Fluid Accumulator and
Solenoid
Hybrid
ACCM
Auxiliary Transmission Fluid Pump
Battery Control Module **
Battery Cooling Circuit
Battery Pack Current Sensor
Brake Pedal Travel SensorCharge Port
Charge Port Switches and Sensors
Drive Motor/Generator Control
Module **
Drive Motors and Resolvers *
Eboost Brake Control Module **
Electro-Hydraulic Brake Control
Module **
Energy Storage Control Module **
Exhaust Heat Exchanger
Fuel Fill Door Sensors
High Voltage Battery Contactor
Hood Switch
Hybrid Batteries *
Hybrid Battery Temperature and
Voltage Sensors
Hybrid EVAP Canister Assembly
Hybrid RESS Thermal Management:
Air and Coolant Sensors
Battery Coolant Pumps and
Cooling Fans
Battery High Voltage Heater
Battery Temperature Sensors
E-compressor * **
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Buick Limited Warranty and Owner Assistance Information (GMNA-Localiz-
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Emission Warranty Parts List 23
Power Electronics
Coolant Pump
Port Valves
Rfg. Temperature and Pressure
Sensors
Onboard Charger * **
SGCM Coolant Circuit (fan,
relay, pump)
Starter Generator *
Starter Generator Control Module **
Starter Generator Drive Belt
Traction Power Inverter
Module (TPIM) **
Vehicle Interface Control Module **
Wheel Speed Sensor
Miscellaneous Items Used with
Above Components and Certain
Tires are Covered
Belts
Boots
Clamps
Connectors
Ducts Fittings
Gaskets
Grommets
Hoses
Housings
Mounting Hardware
Pipes
Pulleys
Sealing Devices
Springs
Tubes
Wiring and Relays
High Voltage Wiring
Tires (Heavy Duty Applications only
2 yr/24,000 mile Federal Emission
Defect Warranty)
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.
Replacement Parts
The emission control systems of
your vehicle were designed, built,
and tested using genuine GM parts*
and the vehicle is certified as being
in conformity with applicable federal
and California emission
requirements.
Accordingly, it is
recommended that any
replacement parts used for
maintenance or for the repair of
emission control systems be new,
genuine GM parts.
The warranty obligations are not
dependent upon the use of any
particular brand of replacement
parts. The owner may elect to use
non-genuine GM parts for
replacement purposes. Use of
replacement parts which are not of