Buick Limited Warranty and Owner Assistance Information (GMNA-Localiz-
ing-U.S.-14466059) - 2021 - CRC - 3/17/20
Emission Warranty Parts List
19
Emission-related defects in the emission
parts listed here are covered under the
Emission Control System Warranty. The
terms are explained in the
under
“
Federal
Emission Control System Warranty
”
and the
“
California Emission Control System
Warranty.
”
Federal Emissions Select Components
covered for 8 years or 80,000 miles,
whichever comes first (for vehicles with
GVWR of 8,500 lbs or less). These Select
Components are designated with (8/80)
below.
.
Diagnostic Emissions Critical - Electronic
Control Units (8/80)
.
Engine Control Module (8/80)
.
Transmission Control Module (8/80)
.
Catalytic Converters (8/80)
Important:
Certain parts may be covered
beyond the standard warranty period if
shown with asterisk as follows:
(*) 7 years or 70,000 miles, whichever
comes first, under the California Emission
Control System Warranty coverage
Air/Fuel Ratio Control System
Air/Fuel Ratio Control System Sensors
Diesel Fuel Injection Pump*
Diesel Fuel Pipes (Heavy Duty) *
Diesel Fuel Pressure Regulator*
Diesel Fuel Rail Assembly*
Diesel Fuel Temperature Sensor*
Fuel Injection System
Air Management System
Air Intake System
Air Management System Sensors
Charge Air Cooler
Exhaust Manifold*
Intake Manifold*
Supercharger System
Supercharger Assembly*
Throttle Body
Turbocharger System
Turbocharger Assembly*
Turbocharger Oil Feed Pipe (Diesel)*
Turbocharger Exhaust Pipe (Diesel)*
Turbocharger Exhaust Outlet Pipe
Adaptor (Diesel)*
Turbocharger Vane Position Sensor*
Turbocharger Vane Position Solenoid
Valve*
Camshaft Position System
Camshaft Position Actuator*
Camshaft Position Actuator Valve
Camshaft Position System Sensors
Diesel Aftertreatment System
Diesel Oxidation Catalyst
Diesel Particulate Filter*
Selective Catalyst Reduction
Engine Cooling System
Electric Coolant Pump
Engine Cooling Fans
Engine Cooling System Sensors
Engine Coolant Valves
Thermostat
Evaporative Emission Control System
Evaporative Emission Hardware
Fuel Tank(s)*
Fuel Filler Cap (Gasoline)
Fuel Tank Zone Module
Exhaust Gas Recirculation (EGR) System
EGR System Components and Sensors