The Lexus GS300 remained in production from 1993 through to 2011, spanning multiple generations with steady evolution in windscreen technology and safety systems. Earlier generations carried straightforward laminated windscreens, while later models progressively introduced rain sensors, solar-control glass, and specialised tinting options including blue, green, and grey sun strips to reduce glare from above.
From the mid-2010s onwards, newer Lexus models began adopting the Lexus Safety System+ suite, which incorporates forward-facing camera systems for lane keeping and adaptive cruise. While the GS300's production ended before this shift became standard across the range, understanding which generation and trim you own helps determine whether camera-calibration will be required post-replacement.