The 1998 Pontiac Bonneville is a full-size sedan renowned for its comfortable ride, spacious interior, and powerful V6 engine options, including the potent supercharged L67 in the SSEi trim. This model, part of the GMX300 platform, offered a blend of personal luxury and performance, distinguishing itself with upscale features for its class and a smooth driving experience. Designed for everyday commuting and long-distance travel, the Bonneville emphasized driver and passenger comfort with an intuitive control layout and a quiet cabin, aiming to provide a refined and enjoyable journey.

This manual serves as a comprehensive guide for the 1998 Pontiac Bonneville, covering essential owner information, routine maintenance procedures, and basic troubleshooting. It details the operation of the vehicle's powertrain, transmission, chassis systems, and electrical components, along with comfort and convenience features, and safety guidelines. The content is tailored for owners and technicians, providing clear instructions for maintenance tasks such as fluid checks, tire care, and component replacement, as well as guidance on understanding warning indicators and addressing common issues.