A powertrain warranty provides coverage for the vehicle's propulsion system, which includes the engine, differential, transmission, and other components. Some powertrain warranties also cover the vehicle's constant velocity joints and driveshaft. However, powertrain warranties do not cover wear equipment, such as the battery, clutch, and certain fluids.
Bumper-to-bumper warranties cover more equipment than powertrain warranties. With bumper-to-bumper warranties, the vehicle's electronics, air-conditioning system, and many components of the suspension system are covered. However, glass, interior trim, seating upholstery, and other equipment subject to wear are usually excluded from bumper-to-bumper warranties. Although bumper-to-bumper warranties offer more coverage than powertrain warranties, bumper-to-bumper warranties typically have a shorter duration than powertrain warranties.
