What items are typically covered under a manufacturer's powertrain warranty?

A manufacturer's powertrain warranty primarily covers the essential components of a vehicle that are crucial to its operation and performance. This usually includes the engine and transmission, as these parts are central to the vehicle's ability to move and function correctly. The warranty provides coverage for defects in materials and workmanship, which ensures that the vehicle operates reliably under normal conditions.

In contrast, brakes and tires, while important for safety and performance, fall under general wear and tear rather than the powertrain components. Similarly, the battery and alternator, though they play a significant role in the vehicle's electrical system, are not classified as part of the powertrain. Lastly, suspension components, while integral to ride comfort and handling, are also outside the scope of the powertrain warranty. Therefore, the coverage focuses specifically on the engine and transmission, making the choice identifying these parts the correct one.