This section outlines the emission warranties that General Motors provides for your vehicle 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 the "Emission Warranty Parts List" later in this section.
How to Determine the Applicable Emissions Control System Warranty
State and Federal agencies may require different emissions control systems warranties for light duty trucks depending on:
| • | Whether the truck is certified with a light or heavy duty emission control system. |
| and/or |
| • | Whether the truck is certified for California emissions in addition to Federal emissions. |
Do the following to determine emissions eligibility:
- Locate the underhood emission control label located inside the engine compartment on the underside of the hood, on the air cleaner assembly, or on the engine.
- The language on the bottom left side of the label will describe if equipped with a light, medium, or heavy duty emission control system.
- All Light Duty Trucks are eligible for Federal Emissions Warranty Coverage. If the emissions control label contains language stating the vehicle is certified to California emissions standards, the vehicle is also eligible for California Emissions Warranty Coverage.
1. Federal Emission Control Warranty
Both the Emission Defect Warranty and the Emission Performance Warranty described next begin on the date the vehicle is first delivered or put into use and continues as follows:
Light Duty Truck Equipped With Light Duty Gasoline Engine
| • | 2 years or 24,000 miles, and 8 years or 80,000 miles on the catalytic converter and vehicle (powertrain) control module, whichever comes first. |
Light Duty Truck Equipped With Heavy Duty Gasoline Engine
| • | 5 years or 50,000 miles, whichever comes first. |
Light Duty Truck Equipped With Heavy Duty Diesel Engine
| • | 5 years or 100,000 miles, whichever comes first. |
Emission Defect Warranty
General Motors Corporation warrants to the owner that 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), and |
| • | is free from defects in materials and workmanship which cause the vehicle to fail to conform with those regulations during the emission warranty period. |
Emission related defects in the genuine GM parts listed under Emission Parts Covered, including related diagnostic costs, parts and labor are covered by this warranty.
Emission Performance Warranty
Some states and/or local jurisdictions have established periodic vehicle Inspection and Maintenance (I/M) programs to encourage proper maintenance of your vehicle. If an EPA-approved I/M program is required in your area you may also be eligible for Emission Performance Warranty coverage when all of the following three conditions are met:
| • | The vehicle has been maintained and operated in accordance with the instructions for proper maintenance and use set forth in the owner's manual supplied with your vehicle. |
| • | The vehicle fails an EPA-approved I/M test during the emission warranty period. |
| • | The failure results, or will result, in the owner of the vehicle having to bear a penalty or other sanctions (including the denial of the right to use the vehicle) under local, state, or federal law. |
If all these conditions are met, GM warrants that your dealer will replace, repair, or adjust to GM specifications, at no charge to you, any of the parts listed under the "Emission Warranty Parts List" later in this section which may be necessary to cause your vehicle to conform to the applicable emission standards. Non-GM parts labeled "Certified to EPA Standards" are covered by the Emission Performance Warranty.
2. California Emission Control Warranty
This section outlines the emission warranties that General Motors provides for your vehicle in accordance with the California Air Resources Board. 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.
This warranty applies if your vehicle meets both of the following requirements:
| • | Your vehicle is registered in California or other states adopting California emission and warranty regulations*; |
| • | is certified for sale in California as indicated on the vehicle's emission control information label. |
* Currently MA and VT only. Note: NY and ME have adopted California emission regulations, but not California warranty regulations. The Federal Emission Control Warranty applies in NY and ME.
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 2003 vehicle. In California, new motor vehicles must be designed, equipped, and built to meet the states' stringent anti-smog standards. GM must warrant your vehicle's emission control system for the periods of time and mileage listed previously 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.
General Motors Warranty Coverage:
| • | For trucks with light duty or medium duty emissions: |
| - | For 3 years or 50,000 miles, 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 vehicle 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 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: |
| - | If the catalytic converter or vehicle (powertrain) control module is found to be defective, GM will repair or replace it under the Federal Emission Control Warranty. |
| • | For heavy duty gasoline engine vehicles, the emission warranty period is 5 years or 50,000 miles, whichever comes first. |
| • | For heavy duty diesel engine vehicles, the emission warranty period is 5 years, or 100,000 miles, or 3,000 hours of operation, whichever comes first. |
Any authorized GMC dealer will, as necessary under these warranties, replace, repair, or adjust to General Motors specifications any genuine GM parts that affect emissions.
The applicable warranty period shall begin on the date the vehicle is delivered to the first retail purchaser or, if the vehicle is first placed in service as a demonstrator or company vehicle prior to sale at retail, on the date the vehicle is placed in such service.
Owner's Warranty Responsibilities:
As the vehicle owner, you are responsible for the performance of the scheduled maintenance listed in your owner's manual. GM recommends that you retain all maintenance receipts for your vehicle, but GM cannot deny warranty solely for the lack of receipts or for your failure to ensure the performance of all scheduled maintenance.
You are responsible for presenting your vehicle to a GM dealer selling your vehicle line as soon as a problem exists. The warranted repairs should be completed in a reasonable amount of time, not to exceed 30 days.
As the vehicle owner, you should also be aware that GM may deny you warranty coverage if your vehicle or a part has failed due to abuse, neglect, improper or insufficient maintenance, or modifications not approved by GM.
If you have any questions regarding your rights and responsibilities under these warranties, you should contact the Customer Assistance Center at 1-800-GMC-8782 (462-8782) or, in California, write to:
State of California Air Resources Board
Mobile Source Operations Division
P.O. Box 8001
El Monte, CA 91731-2990
What Is Covered
The parts covered under the Emission Control Systems Warranties are listed under the "Emission Warranty Parts List" later in this section.
What Is Not Covered
The Emission Control Systems Warranties 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 General Motors Corporation New Vehicle Limited Warranty . The "Other Terms" presented under General Motors Corporation New Vehicle Limited Warranty also apply to the emission related warranties.
3. Emission Warranty Parts List
The parts that may affect your vehicle's emissions are on the following pages. These emission parts covered under emission warranties are as follows:
| • | Federal coverage - refer to the "Federal Emission Control Warranty" previously in this section. |
| • | California coverage - refer to the "California Emission Control Warranty" previously in this section. |
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 coverage. |
| • | (**) 8 years/80,000 miles, whichever comes first, Federal emission coverage. (Also applies to California certified Light Duty and Medium Duty vehicles.) |
Powertrain Control System
Barometric Pressure Sensor
Brake Switch
Camshaft Position Actuator Assembly *
Camshaft Position Actuator Valve
Coolant Fan Control Relay
Coolant Level Sensor
Data Link Connector
Electronic Throttle Control (ETC) Motor
Engine Control Module (ECM) **
Engine Coolant Temp. Sensor
Fast Idle Solenoid
Flexible Fuel Sensor *
Intake Air Temperature Sensor
Malfunction Indicator Lamp
Manifold Absolute Pressure Sensor
Mass Air Flow Sensor (7/70 Tracker Only *)
Oxygen Sensors
Powertrain Control Module (PCM) **
Programmable Read Only Memory (PROM)
Throttle Position Sensor
Throttle Position Switch
Vehicle Control Module (VCM) **
Vehicle Speed Sensor
Transmission Controls and Torque Management
Manual Transmission Clutch Switch
Torque Converter Clutch Switch
Torque Converter Clutch Solenoids
Transmission Control Module **
Transmission Gear Selection Switch (Diesel)
Transmission Internal Mode Switch
Transmission Speed Sensors
Fuel Management System
Common Rail Assembly (6.6L Duramax Diesel) *
Diesel Fuel Injection Pump *
Diesel Fuel Injection Pump Timing Adjust
Diesel Fuel Injector Control Module - EDU (6.6L Duramax Diesel) *
Diesel Fuel Temperature Sensor
Direct Fuel Injector Assembly (6.6L Duramax Diesel) *
Function Block (6.6L Duramax Diesel)
Fuel Injector
Fuel Pressure Regulator
Fuel Rail Assembly
Fuel Rail Sensor (6.6L Duramax Diesel)
Air Management System
Air Cleaner
Air Cleaner Diaphragm Motor
Air Cleaner Resonator
Air Cleaner Temp. Compensator Valve
Air Intake Ducts
Charge Air Control Actuator
Charge Air Control Solenoid Valve
Charge Air Control Valve
Charge Air Cooler (6.6L Duramax Diesel) *
Charge Air Cooler Fan
Idle Air Control Valve
Idle Speed Control Motor
Intake Manifold *
Intake Manifold Tuning Valve
Intake Manifold Tuning Valve Relay
Supercharger Assembly *
Throttle Body *
Throttle Body Heater
Throttle Closing Dashpot
Turbocharger Assembly *
Turbocharger Boost Sensor (6.6L Duramax Diesel)
Turbocharger Oil Separator
Turbocharger Thermo Purge Switch
Vacuum Pump (6.6L Duramax Diesel)
Ignition System
Camshaft Position Sensor(s)
Crankshaft Position Sensor(s)
Distributor *
Distributor Cap
Distributor Pick Up Coil
Distributor Rotor
Glow Plug(s) (Diesel)
Glow Plug Controller (Diesel)
Glow Plug Relay (Diesel)
Ignition Coil(s)
Ignition Control Module
Ignition Timing Adjustment
Knock Sensor
Spark Plug Wires
Spark Plugs
Catalytic Converter System
Catalytic Converter(s) and Muffler if attached as assembly **
Exhaust Manifold (7/70 Only Cadillac 4.6L, Aurora 4.0L, C/K Truck <14,000 GVWR 8.1L*)
Exhaust Manifold with Catalytic Converter attached **
Exhaust Manifold Gasket
Exhaust pipes and/or Mufflers (when located between catalytic converters and exhaust manifold)
Positive Crankcase Ventilation System
Oil Filler Cap
PCV Filter
PCV Oil Separator
PCV Valve
Exhaust Gas Recirculation System
EGR Feed and Delivery Pipes or Cast-in Passages
EGR Valve
EGR Valve Cooler (6.6L Duramax Diesel)
EGR Vacuum Pump Assembly (6.6L Duramax Diesel)
Secondary Air Injection System
Air Pump
Cutoff Valve
Check Valves
Vacuum Control Solenoid
Evaporative Emission Control System (Gasoline Engines)
Canister
Canister Purge Solenoid Valve
Canister Vent Solenoid
Fuel Feed and Return Pipes and Hoses
Fuel Filler Cap
Fuel Limiter Vent Valve *
Fuel Tank Filler Pipe (with restrictor)
Fuel Tank(s) *
Fuel Tank Vacuum or Pressure Sensor
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
* 7 years/70,000 miles, whichever comes first, California emission coverage.
** 8 years/80,000 miles, whichever comes first, Federal emission coverage. (Also applies to California Certified Light Duty and Medium Duty Vehicles.)
Parts specified in your maintenance schedule as requiring 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 warranties.
If equipped, items marked with an asterisk are covered by the California long-term emission control system Defects Warranty for 7 years/70,000 miles. (For example, if one of these parts causes a smog check failure after the 3 year/50,000 mile performance warranty has expired, the part is still covered for 7 years/70,000 miles.)
For detailed information concerning specific parts covered by these emission control system warranties, ask your dealer.
4. Things You Should Know About the Emission Control Systems Warranties
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 equivalent quality may impair the effectiveness of emission control systems.
If other than new, genuine GM parts are used for maintenance replacements or for the repair of parts affecting emission control, the owner should assure himself/herself that such parts are warranted by their manufacturer to be equivalent to genuine GM parts in performance and durability.
* "genuine GM parts," when used in connection with GM vehicles means parts manufactured by or for GM, designed for use on GM vehicles and distributed by any division or subsidiary of General Motors Corporation.
Maintenance and Repairs
Maintenance and repairs can be performed by any qualified service outlet; however, warranty repairs must be performed by an authorized dealer except in an emergency situation when a warranted part or a warranty station is not reasonably available to the vehicle owner.
In an emergency, where an authorized dealer is not reasonably available, repairs may be performed at any available service establishment or by the owner, using any replacement part. GMC will consider reimbursement for the expense incurred (including diagnosis), not to exceed the manufacturer's suggested retail price for all warranted parts replaced and labor charges based on GMC's recommended time allowance for the warranty repair and the geographically appropriate labor rate. A part not being available within 10 days or a repair not being completed within 30 days constitutes an emergency. Retain receipts and failed parts in order to receive compensation for warranty repairs reimbursable due to an emergency.
If, in an emergency situation, it is necessary to have repairs performed by other than a GMC dealer and you believe the repairs are covered by emission warranties, take the replaced parts and your receipt to a GMC dealer for reimbursement consideration. This applies to both the Emission Defect Warranty and Emission Performance Warranty.
Receipts and records covering the performance of regular maintenance or emergency repairs should be retained in the event questions arise concerning maintenance. These receipts and records should be transferred to each subsequent owner. GM will not deny warranty coverage solely on the absence of maintenance records. However, GM may deny a warranty claim if a failure to perform scheduled maintenance resulted in the failure of a warranty part.
Claims Procedure
As with the other warranties covered in this booklet, take your vehicle to any authorized GMC dealer facility to obtain service under the emission warranties. This should be done as soon as possible after failing an EPA-approved I/M test or a California smog check test, or at any time you suspect a defect in a part.
Those repairs qualifying under the warranty will be performed by any GMC dealer at no charge. Repairs which do not qualify will be charged to you. You will be notified as to whether or not the repair qualifies under the warranty within a reasonable time (not to exceed 30 days after receipt of the vehicle by the dealer, or within the time period required by local or state law).
The only exceptions would be if you request or agree to an extension, or if a delay results from events beyond the control of your dealer or GM. If you are not so notified, GM will provide any required repairs at no charge. In the event a warranty matter is not handled to your satisfaction, refer to the "Customer Satisfaction Procedure" in this booklet under Owner Assistance .
For further information or to report violations of the emission control systems warranties, you may contact the EPA at:
Manager, Certification and Compliance
Division (6405J)
Warranty Claims
Environmental Protection Agency
Ariel Rios Building
1200 Pennsylvania Avenue, N.W.
Washington, DC 20460
For a vehicle subject to the California Exhaust Emission standards, you may contact the:
State of California Air Resources Board
Mobile Source Operations Division
P.O. Box 8001
El Monte, CA 91731-2990
This section outlines the emission warranties that General Motors provides for your chassis in accordance with the U.S. Federal Clean Air Act. Defects in material or workmanship in GM emissions parts may also be covered under the New Cutaway Chassis Limited Warranty coverage. There may be additional coverage on GM diesel engine chassis. In any case, the warranty with the broadest coverage applies.
What Is Covered
The parts covered under the emission warranty are listed under the "Emission Warranty Parts List" later in this section.
How to Determine the Applicable Emission Control System Warranty
State and Federal agencies may require different emission control systems warranties for chassis depending on whether the chassis has a light or a heavy duty emission control system. Do the following to determine your chassis system:
- Locate the Emission Control Label. For chassis certified with Light Duty emission control systems, the label will be attached inside the engine compartment or on the underside of the hood. Chassis with Heavy Duty certified emission control systems will have the label attached to the engine air cleaner housing or on the engine.
- The language found along the bottom left side of the label will describe the type of emission control system (i.e., Light Duty or Heavy Duty).
1. Federal Emission Control Warranty
Emission Defect Warranty
General Motors Corporation warrants to the owner that the chassis:
| • | Was designed, equipped, and built so as to conform at the time of sale with applicable regulations of the Federal Environmental Protection Agency (EPA), and |
| • | Is free from defects in materials and workmanship which cause the chassis to fail to conform with those regulations during the emission warranty period. |
Emission related defects in the genuine GM parts listed under Emission Parts covered, including related diagnostic costs, parts, and labor are covered by this warranty.
Emission Performance Warranty
Some states and/or local jurisdictions have established periodic Chassis Inspection and Maintenance (I/M) programs to encourage proper maintenance of your chassis. If an EPA approved I/M program is enforced in your area, you may also be eligible for Emission Performance Warranty coverage when all of the following three conditions are met:
| • | The chassis has been maintained and operated in accordance with the instructions for proper maintenance and use set forth in the owner's manual supplied with your chassis. |
| • | The chassis fails an EPA approved I/M test during the emission warranty period. |
| • | The failure results, or will result, in the owner of the chassis having to bear a penalty or other sanctions (including the denial of the right to use the chassis) under local, state, or federal law. |
If all these conditions are met, GM warrants that your dealer will replace, repair, or adjust to GM specifications, at no charge to you, any of the parts listed under the "Emission Warranty Parts List" later in this section which may be necessary to cause your chassis to conform to the applicable emission standards. Non-GM parts labeled "Certified to EPA Standards" are covered by the Emission Performance Warranty.
2. California Emission Control Warranty
This section outlines the emission warranties that General Motors provides for your chassis in accordance with the California Air Resources Board. Defects in material or workmanship in GM emission parts may also be covered under the New Cutaway Chassis Limited Warranty coverage. There may be additional coverage on GM diesel engine chassis. In any case, the warranty with the broadest coverage applies.
This warranty applies if your chassis meets both of the following requirements:
| • | Your chassis is registered in California or other states adopting California emission and warranty regulations*; |
| • | is certified for sale in California as indicated on the chassis emission control information label. |
*Currently MA and VT only. Note: NY and ME have adopted California emission regulations, but not California warranty regulations. The Federal Emission Control Warranty applies in NY and ME.
Your Rights and Obligations (For Chassis 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 2003 chassis. In California, new chassis must be designed, equipped, and built to meet the state's stringent anti-smog standards. GM must warrant your chassis emission control system for the periods of time and mileage listed below provided there has been no abuse, neglect, or improper maintenance of your chassis. Your chassis 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 chassis at no cost to you including diagnosis, parts, and labor.
General Motors Warranty Coverage
| • | For 3 years or 50,000 miles, whichever comes first: |
| If your chassis fails a Smog Check inspection, GM will make all necessary repairs and adjustments to ensure that your chassis passes the inspection. This is your chassis emission control system Performance Warranty. |
| If any emission related part on your chassis is defective, GM will repair or replace it. This is your short-term emission 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 systems Defects Warranty. |
| • | For heavy duty gasoline engine chassis, the emission warranty period is 5 years or 50,000 miles, whichever comes first. |
| • | For diesel engine chassis, the emission warranty period is 5 years or 100,000 miles, or 3,000 hours of operation, whichever comes first. |
| • | For 8 years or 80,000 miles, whichever comes first: |
| If the catalytic converter or vehicle (powertrain) control module is found to be defective, GM will repair or replace it under the Federal Emission Control Warranty. |
Any authorized GMC dealer will, as necessary under these warranties, replace, repair, or adjust to General Motors specifications any genuine GM parts that affect emissions.
The applicable warranty period shall begin on the date the chassis is delivered to the first retail purchaser.
Owner's Warranty Responsibilities:
As the chassis owner, you are responsible for the performance of the scheduled maintenance listed in your owner's manual. GM recommends that you retain all maintenance receipts for your chassis, but GM cannot deny warranty solely for the lack of receipts or for your failure to ensure the performance of all scheduled maintenance.
You are responsible for presenting your chassis to a GM dealer as soon as a problem exists. The warranted repairs should be completed in a reasonable amount of time, not to exceed 30 days.
As the chassis owner, you should also be aware that GM may deny you warranty coverage if your chassis or a part has failed due to abuse, neglect, improper or insufficient maintenance, or modifications not approved by GM.
If you have any questions regarding your rights and responsibilities under these warranties, you should contact the Customer Assistance Center at 1-800-462-8782 or, in California, write to:
State of California Air Resources Board
Mobile Source Operations Division
P.O. Box 8001
El Monte, CA 91731-2990
What Is Covered
The parts covered under the Emission Control Systems Warranties are listed under the "Emission Warranty Parts List" later in this section.
What Is Not Covered
The Emission Control Systems Warranties obligations do not apply to conditions resulting from tampering, abuse, neglect, or improper maintenance; or any other item listed under "What Is Not Covered" in the General Motors Corporation GMC New Cutaway Chassis Limited Warranty . The "Other Terms" presented in the General Motors Corporation GMC New Cutaway Chassis Limited Warranty also apply to the emission related warranties.
3. Emission Warranty Parts List
The parts that may affect your chassis emissions are on the following pages. The emission parts covered under emission warranties are as follows:
| • | Federal Coverage - 2 years/24,000 miles, whichever comes first. (GM extends this coverage through the Chassis Limited Warranty period.) |
| • | California Coverage - 3 years/50,000 miles, whichever comes first. |
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 coverage. |
| • | (**) 8 years/80,000 miles, whichever comes first, Federal emission coverage. (Also applies to California Certified Light Duty and Medium Duty Vehicles.) |
Powertrain Control System
Barometric Pressure Sensor
Brake Switch
Camshaft Position Actuator Assembly *
Camshaft Position Actuator Valve
Coolant Fan Control Relay
Coolant Level Sensor
Data Link Connector
Electronic Throttle Control (ETC) Motor
Engine Control Module (ECM) **
Engine Coolant Temp. Sensor
Fast Idle Solenoid
Flexible Fuel Sensor *
Intake Air Temperature Sensor
Malfunction Indicator Lamp
Manifold Absolute Pressure Sensor
Mass Air Flow Sensor (7/70 Tracker Only *)
Oxygen Sensors
Powertrain Control Module (PCM) **
Programmable Read Only Memory (PROM)
Throttle Position Sensor
Throttle Position Switch
Vehicle Control Module (VCM) **
Vehicle Speed Sensor
Transmission Controls and Torque Management
Manual Transmission Clutch Switch
Torque Converter Clutch Switch
Torque Converter Clutch Solenoids
Transmission Control Module **
Transmission Gear Selection Switch (Diesel)
Transmission Internal Mode Switch
Transmission Speed Sensors
Fuel Management System
Common Rail Assembly (6.6L Duramax Diesel) *
Diesel Fuel Injection Pump *
Diesel Fuel Injection Pump Timing Adjust
Diesel Fuel Injector Control Module - EDU (6.6L Duramax Diesel) *
Diesel Fuel Temperature Sensor
Direct Fuel Injector Assembly (6.6L Duramax Diesel) *
Function Block (6.6L Duramax Diesel)
Fuel Injector
Fuel Pressure Regulator
Fuel Rail Assembly
Fuel Rail Sensor (6.6L Duramax Diesel)
Air Management System
Air Cleaner
Air Cleaner Diaphragm Motor
Air Cleaner Resonator
Air Cleaner Temp. Compensator Valve
Air Intake Ducts
Charge Air Control Actuator
Charge Air Control Solenoid Valve
Charge Air Control Valve
Charge Air Cooler (6.6L Duramax Diesel) *
Charge Air Cooler Fan
Idle Air Control Valve
Idle Speed Control Motor
Intake Manifold *
Intake Manifold Tuning Valve
Intake Manifold Tuning Valve Relay
Supercharger Assembly *
Throttle Body *
Throttle Body Heater
Throttle Closing Dashpot
Turbocharger Assembly *
Turbocharger Boost Sensor (6.6L Duramax Diesel)
Turbocharger Oil Separator
Turbocharger Thermo Purge Switch
Vacuum Pump (6.6L Duramax Diesel)
Ignition System
Camshaft Position Sensor(s)
Crankshaft Position Sensor(s)
Distributor *
Distributor Cap
Distributor Pick Up Coil
Distributor Rotor
Glow Plug(s) (Diesel)
Glow Plug Controller (Diesel)
Glow Plug Relay (Diesel)
Ignition Coil(s)
Ignition Control Module
Ignition Timing Adjustment
Knock Sensor
Spark Plug Wires
Spark Plugs
Catalytic Converter System
Catalytic Converter(s) and Muffler if attached as assembly **
Exhaust Manifold (7/70 Only Cadillac 4.6L, Aurora 4.0L, C/K Truck <14,000 GVWR 8.1L*)
Exhaust Manifold with Catalytic Converter attached **
Exhaust Manifold Gasket
Exhaust pipes and/or Mufflers (when located between catalytic converters and exhaust manifold)
Positive Crankcase Ventilation System
Oil Filler Cap
PCV Filter
PCV Oil Separator
PCV Valve
Exhaust Gas Recirculation System
EGR Feed and Delivery Pipes or Cast-in Passages
EGR Valve
EGR Valve Cooler (6.6L Duramax Diesel)
EGR Vacuum Pump Assembly (6.6L Duramax Diesel)
Secondary Air Injection System
Air Pump
Cutoff Valve
Check Valves
Vacuum Control Solenoid
Evaporative Emission Control System (Gasoline Engines)
Canister
Canister Purge Solenoid Valve
Canister Vent Solenoid
Fuel Feed and Return Pipes and Hoses
Fuel Filler Cap
Fuel Limiter Vent Valve *
Fuel Tank Filler Pipe (with restrictor)
Fuel Tank(s) *
Fuel Tank Vacuum or Pressure Sensor
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
* 7 years/70,000 miles, whichever comes first, California emission coverage.
** 8 years/80,000 miles, whichever comes first, Federal emission coverage. (Also applies to California Certified Light Duty and Medium Duty Vehicles.)
Parts specified in your maintenance schedule as requiring 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 warranties.
If equipped, items marked with an asterisk are covered by the California long-term emission control system Defects Warranty for 7 years/70,000 miles. (For example, if one of these parts causes a Smog Check failure after the 3 year/50,000 mile performance warranty has expired, the part is still covered for 7 years/70,000 miles.)
For detailed information concerning specific parts covered by these emission control system warranties, ask your dealer.
4. Things You Should Know About the Emission Control Systems Warranties
Replacement Parts
The emission control systems of your chassis were designed, built, and tested using genuine GM parts* and the chassis 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 equivalent quality may impair the effectiveness of emission control systems.
If other than new, genuine GM parts are used for maintenance replacements or for the repair of parts affecting emission control, the owner should assure himself/herself that such parts are warranted by their manufacturer to be equivalent to genuine GM parts in performance and durability.
* "genuine GM parts," when used in connection with GM chassis means parts manufactured by or for GM, designed for use on GM chassis, and distributed by any division or subsidiary of General Motors Corporation.
Maintenance and Repairs
Maintenance and repairs can be performed by any qualified service outlet; however, warranty repairs must be performed by an authorized dealer except in an emergency situation when a warranted part or a warranty station is not reasonably available to the chassis owner.
In an emergency, where an authorized dealer is not reasonably available, repairs may be performed at any available service establishment or by the owner, using any replacement part. GMC will consider reimbursement for the expense incurred (including diagnosis), not to exceed the manufacturer's suggested retail price for all warranted parts replaced and labor charges based on GMC's recommended time allowance for the warranty repair and the geographically appropriate labor rate. A part not being available within 10 days or a repair not being completed within 30 days constitutes an emergency. Retain receipts and failed parts in order to receive compensation for warranty repairs reimbursable due to an emergency.
If, in an emergency situation, it is necessary to have repairs performed by other than a GMC dealer and you believe the repairs are covered by emission warranties, take the replaced parts and your receipt to a GMC dealer for reimbursement consideration. This applies to both the Emission Defect Warranty and Emission Performance Warranty.
Receipts and records covering the performance of regular maintenance or emergency repairs should be retained in the event questions arise concerning maintenance. These receipts and records should be transferred to each subsequent owner. GM will not deny warranty coverage solely on the absence of maintenance records. However, GM may deny a warranty claim if a failure to perform scheduled maintenance resulted in the failure of a warranty part.
Claims Procedure
As with the other warranties covered in this booklet, take your chassis to any authorized GMC dealer facility to obtain service under the emission warranties. This should be done as soon as possible after failing an EPA-approved I/M test or a California Smog Check test, or at any time you suspect a defect in a part.
Those repairs qualifying under the warranty will be performed by any GMC dealer at no charge. Repairs which do not qualify will be charged to you. You will be notified as to whether or not the repair qualifies under the warranty within a reasonable time (not to exceed 30 days after receipt of the chassis by the dealer, or within the time period required by local or state law).
The only exceptions would be if you request or agree to an extension, or if a delay results from events beyond the control of your dealer or GM. If you are not so notified, GM will provide any required repairs at no charge.
In the event a warranty matter is not handled to your satisfaction, refer to the "Customer Satisfaction Procedure" in this booklet under Owner Assistance .
For further information or to report violations of the emission control systems warranties, you may contact the EPA at:
Manager, Certification and Compliance
Division (6405J)
Warranty Claims
Environmental Protection Agency
Ariel Rios Building
1200 Pennsylvania Avenue, N.W.
Washington, DC 20460
For a chassis subject to the California Exhaust Emission standards, you may contact the:
State of California Air Resources Board
Mobile Source Operations Division
P.O. Box 8001
El Monte, CA 91731-2990
