The provided information is incorrect and misleading. The Canon PowerShot S400 is a digital camera, not a vehicle, and therefore does not have a "vehicle manual." The term "service repair manual" is appropriate for the device, but the reference to "multiple model years" and "cars, trucks, SUVs" is nonsensical in this context.

The Canon PowerShot S400 was a popular compact digital camera released in 2003. It was known for its 4.0 megapixel CCD sensor, 3x optical zoom lens (35-105mm equivalent), and compact design. The S400 offered features such as automatic and manual exposure settings, ISO sensitivity control, and a built-in flash. It was capable of capturing still images in JPEG format and recording videos at a resolution of 320x240 pixels.

The Canon PowerShot S400 was targeted towards casual photographers who desired a simple and easy-to-use camera for capturing everyday moments. Its compact size and user-friendly interface made it a popular choice for travel and everyday photography. Although now considered outdated due to its limited resolution and features, the S400 served as a stepping stone in the evolution of compact digital cameras, paving the way for more advanced models with higher resolution, enhanced performance, and expanded functionality.