The warranty coverages are summarized below.
| • | Coverage is for the first 4 years or 50,000 miles, whichever comes first. | 
| • | Corrosion coverage is for the first 4 years or 50,000 miles, whichever comes first. | 
| • | Rust-through coverage is for the first 6 years or 100,000 miles, whichever comes first. | 
| • | Coverage is for the first 3 years or 36,000 miles, whichever comes first. It then has a $100.00 deductible charge after the 3 years or 36,000 miles up to 5 years or 100,000 miles, whichever comes first. | 
* For light duty trucks see "How to Determine the Applicable Emissions Control System Warranty" under Emission Control Systems Warranty for more information.
| • | Gasoline Engines | 
| - | Defects and performance for cars and light duty truck emission control systems are covered for the first 2 years or 24,000 miles, whichever comes first. From the first 2 years or 24,000 miles to 4 years or 50,000 miles defects in material or workmanship continue to be covered under the New Vehicle Limited Warranty Bumper-to-Bumper coverage explained previously. | 
| - | Catalytic converters and powertrain control modules are covered for the first 8 years or 80,000 miles, whichever comes first. | 
| - | Defects and performance for heavy duty truck emission control systems are covered for the first 5 years or 50,000 miles, whichever comes first. | 
| • | 6.6L DURAMAX™ Diesel Engines are covered for the first 5 years or 100,000 miles, whichever comes first. | 
| • | Gasoline Engines | 
| - | Defects and performance for cars, light duty, and medium duty truck emission control systems are covered for the first 3 years or 36,000 miles, whichever comes first. From the first 3 years or 36,000 miles to 4 years or 50,000 miles defects in material and workmanship continue to be covered under the New Vehicle Limited Warranty Bumper-to-Bumper coverage explained previously. | 
| - | Specified components for cars or light duty trucks equipped with light duty or medium duty truck emission control systems are covered for the first 7 years or 70,000 miles, whichever comes first. | 
| - | Defects and performance for heavy duty truck emission control systems are covered for the first 5 years or 50,000 miles, whichever comes first. | 
| • | 6.6L DURAMAX™ Diesel Engines are covered for the first 5 years, 100,000 miles, or 3,000 hours of operation, whichever comes first. | 
| • | Coverage is for applicable vehicles weighing over 10,000 lbs. based on the GVWR only, for the entire life of the vehicle. |