The second-generation Lexus GS (S160) 1997-2005 arrived as a rear-drive executive saloon, pairing inline-six and V8 power with the marque’s hallmark refinement. Even an analogue-era luxury sedan like this leans on electronic control modules that lose their bearings whenever fluids are changed or sensors disturbed. After an oil and filter change the maintenance light needs clearing through the instrument cluster, and a fresh service interval has to be programmed back in. Owners working on brakes will want the brake pad wear reset, while those topping up electrolyte or swapping the 12V cell should perform a battery reset so the charging logic recalibrates. The steering angle sensor may also require zeroing after suspension work. Pick the procedure that matches the job you have just finished from the list below.