Reed,
See here:
http://www.chevrolet.com/owners/warranty/What Is Covered
The emission parts listed here are covered under the Emission Control System Limited Warranty. The terms are explained in the "Federal Emission Control System Limited Warranty" and the "California Emission Control System Limited Warranty" below.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 Limited Warranty coverage.** 8 years/80,000 miles, whichever comes first, Federal Emission Control System Limited Warranty coverage. (Also applies to California certified light-duty and medium-duty vehicles.)* and ** are 8 years/100,000 miles, whichever comes first, for California LEV2 vehicles equipped with option code NUA.All listed parts are covered for 15 years/150,000 miles, whichever comes first, on California PZEV (NU6) vehicles registered in a PZEV state, except Hybrid batteries and Hybrid A/C compressors, which are covered for 10 years/100,000 miles, whichever comes first.The Emission Control System Limited Warranty obligations do not apply to conditions resulting from tampering, abuse, neglect, or improper maintenance; or any other item listed under "What Is Not Covered" under the New-Vehicle Limited Warranty. The "Other Terms" presented under the New-Vehicle Limited Warranty also apply to the emission-related warranties.Powertrain Control System:
ABS Control Module **
Camshaft Position Actuator *
Camshaft Position Actuator Valve
Coolant Level Sensor
Data Link Connector
Engine Control Module (ECM) **
Engine Coolant Temperature Sensor
Fuel Control Module **
Intake Air Temperature Sensor
Malfunction Indicator Lamp
Manifold Absolute Pressure Sensor
Mass Air Flow Sensor
Oil Pressure Sensor Active Fuel Management (AFM)
Oxygen Sensor(s)
Powertrain Control Module (PCM) **
Throttle Position Sensor
Vehicle Control Module (VCM) **
Vehicle Speed Sensor
Wheel Speed SensorTransmission Controls and Torque Management:
GMLAN (CAN) Communications Circuit
Manual Transmission Clutch Switch
Park/Neutral Switch
Torque Converter Clutch Solenoids
Torque Converter Clutch Switch
Transmission Control Module **
Transmission Fluid Temperature Sensor
Transmission Gear Selection Switch (Diesel)
Transmission Internal Mode Switch *
Transmission Pressure Control Solenoids *
Transmission Pressure Switches *
Transmission Shift Solenoids *
Transmission Speed Sensor (Input) *
Transmission Speed Sensor (Output)Fuel Management System:
Diesel Fuel Injection Pump *
Direct Fuel Injector Assembly (6.6L Duramax Diesel) *
Fuel Injector
Fuel Pressure Regulator
Fuel Pressure Sensor
Fuel Rail Assembly *
Fuel Temperature Sensor
High-Pressure Fuel Pump (SIDI) *Air Management System:
Active Aero Shutters
Air Cleaner
Air Cleaner Resonator
Air Intake Ducts
Charge Air Control Actuator
Charge Air Control Solenoid Valve
Charge Air Control Valve
Charge Air Cooler *Charge Air Cooler Fan
Idle Air Control Valve
Idle Speed Control Motor
Intake Air Heater
Intake Manifold *
Intake Manifold Heater
Intake Manifold Tuning Valve
Supercharger Assembly *
Throttle Body
Throttle Body Heater
Turbocharger Assembly *
Turbocharger Boost Sensor
Turbocharger Oil SeparatorIgnition System:
Camshaft Position Sensor(s)
Crankshaft Position Sensor(s)
Glow Plug(s) (Diesel)
Glow Plug Controller (Diesel)
Ignition Coil(s)
Knock Sensor
Spark Plug Wires
Spark PlugsCatalytic Converter System:
Catalytic Converter(s) and Muffler (if attached as assembly) * **
Diesel Exhaust Temperature and Pressure Sensors
Diesel Exhaust (DPF) Indirect Fuel Injector
Diesel Exhaust Emission Reduction Fluid Injector
Diesel Exhaust Emission Reduction Fluid Tank *
Diesel Exhaust NOx Sensors
Diesel Particulate Filter (DPF) *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 ValveExhaust Gas Recirculation (EGR) System:
EGR Feed and Delivery Pipes or Cast-in Passages
EGR Valve
EGR Valve Cooler (6.6L Duramax Diesel) *Secondary Air Injection System:
Air Pump
Check ValvesEvaporative 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 SensorHybrid:
Auxiliary Transmission Fluid Pump
Battery Cooling Fan
Battery Pack Control Module (BPCM) **
Battery Pack Current Sensor
Brake Pedal Travel Sensor
Drive Motors *
Drive Motor Resolvers *
Drive Motor/Generator Control Module **
Electro-Hydraulic Brake Control Module (EBCM) **
Energy Storage Control Module **
Fuel Filler Pipe Adapter Seal
Hybrid Batteries *
Hybrid Battery Temperature Sensors
Hybrid Battery Voltage Sensors
SGCM Coolant Circuit (fan, fan relay, and pump)
Starter Generator *
Starter Generator Control Module (SGCM) **
Starter Generator Drive Belt
Traction Power Inverter Module (TPIM) **
Transmission Substrate Temperature SensorVoltec-Specific Components:
VICM – Vehicle Integration Control Module **
Voltec RESS Battery * **Voltec Rechargeable Energy Storage System Thermal Management:
APM Fan
Battery Coolant Pump
Battery High-Voltage Heater
Battery Inlet Temperature Sensor
Battery Outlet Temperature
E-compressor * **
High Side Refrigerant Pressure Sensor
Low Side Refrigerant Pressure Sensor
Low Side Refrigerant Temperature Sensor
Outside Air Temperature Sensor
PE Coolant Temperature Sensor
Port Valves
Power Electronics Coolant Pump
Radiator FanVoltec OnBoard Charging System:
Charge Port
Charge Port Door Position Sensor
Charge Port Door Release
Charge Port Door Switch
Onboard Charger * **Voltec Refuel Management System:
Fuel Door Lock Assembly
Fuel Door Position Sensor
Refuel Request SwitchVoltec EVAP Emission Control System:
Canister Assembly *Miscellaneous Items Used with Above Components are Covered:
Belts
Boots
Clamps
Connectors
Ducts
Fittings
Gaskets
Grommets
Hoses
Housings
Mounting Hardware
Pipes
Pulleys
Sealing Devices
Springs
Tubes
Wiring and RelaysParts 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 Limited Warranty. For detailed information concerning specific parts covered by these Emission Control System Limited Warranties, ask your dealer.