The 2003 Pontiac Bonneville is a full-size, front-wheel-drive sedan designed with an emphasis on comfort, a spacious interior, and a substantial road presence, catering to buyers seeking comfortable and American-styled transportation, often for family use or long-distance travel. Built on a platform based on GM's L-Body/H-Body architecture, this generation of the Bonneville has a lineage dating back to earlier models and was assembled in the Detroit-Hamtramck Assembly Plant. It was offered with robust V6 engines, including supercharged options, delivering ample power for its class. Notable features include standard Anti-lock Braking System (ABS), available traction control, dual front airbags, and a comfortable ride quality, reflecting Pontiac's legacy of performance-oriented branding within General Motors.

This owner's manual provides comprehensive guidance for operating, maintaining, and understanding your 2003 Pontiac Bonneville. It covers essential areas such as general vehicle operation, including controls, dashboard indicators, and convenience features, alongside scheduled maintenance procedures, fluid checks, and tire inflation. The manual also details safety features like the airbag system and seat belt usage, and outlines emergency procedures for common situations. While offering consumer-level understanding of the vehicle's systems and basic care, it does not delve into detailed repair procedures or diagnostic codes, but rather serves as a vital resource for owners and technicians to ensure the longevity and proper functioning of the Bonneville.