The 2004 Lexus GS is a midsize luxury sedan that blends comfort, smooth power, and long-distance refinement with a sport-sedan feel. It’s ideal for drivers who want a quiet, well-finished daily commuter with strong highway manners and a premium badge without the harsh ride of some European rivals. For 2004, the GS sits in the second-generation GS lineup (1998–2005), offering a mature design and proven mechanicals. In the used market, it’s often chosen for its reputation for solid build quality and a plush, “vault-like” cabin experience.

1) Engine choices: The 2004 GS 300 uses a 3.0L inline-six (2JZ-GE) known for smoothness and durability, while the GS 430 steps up to a 4.3L V8 (3UZ-FE) for stronger acceleration and effortless passing power. 2) Rear-wheel-drive luxury-sport layout: A balanced RWD platform with composed steering and confident high-speed stability makes it more engaging than many front-drive luxury sedans of its era. 3) Premium interior comfort: Supportive leather seating, a quiet cabin, and high-quality materials are standout strengths, especially for daily driving and road trips. 4) Available upscale tech for its time: Many examples include features like a premium audio system, available navigation, power-adjustable seating, and dual-zone automatic climate control (equipment varies by trim and package). 5) Strong highway refinement: Smooth transmissions, excellent noise isolation, and a compliant ride are key reasons owners keep these cars for high-mileage commuting.

Shoppers searching “2004 Lexus GS reliability” will generally find this model is considered above-average for its age, especially with documented maintenance. That said, “2004 Lexus GS problems” and “2004 Lexus GS common issues” do come up, and these are some of the most frequently reported: 1) Dashboard/trim cracking and interior wear: Many owners report cracked dashboards or sticky/cracked interior trim as the car ages, often becoming noticeable around 100,000 miles or simply with years of sun exposure. This is more of a cosmetic/comfort issue than a drivability problem, but replacement can be expensive. 2) Coil pack and ignition-related misfires (more common on higher-mileage cars): Misfires, rough idle, or a check engine light can occur as ignition coils and spark plugs age, sometimes around 120,000–180,000 miles depending on maintenance history. If ignored, misfires can damage catalytic converters. 3) Suspension wear and clunks: On higher-mileage GS models, wear items like control arm bushings, ball joints, sway bar links, and struts can lead to clunking over bumps, vague steering feel, or uneven tire wear, often showing up after 100,000–150,000 miles. This is typical for a heavy luxury sedan but important for ride quality and safety. 4) Power steering fluid seepage and leaks: Some owners encounter power steering pump/line seepage or leaks as seals age. Symptoms can include groaning noises while turning, a drop in reservoir level, or fluid residue near the pump. Catching it early can prevent pump damage.