The original Lexus LS (UCF10) 1988-1993 stunned the industry, delivering V8 silence and build quality that forced Europe’s establishment to rethink the luxury flagship. Despite its age it pioneered electronic engine and climate control that still benefit from a proper service reset. After an oil and filter change the maintenance light is cleared at the cluster so the interval restarts cleanly. Brake work warrants a pad wear reset, and anyone renewing the 12V battery should carry out a battery reset to let the ECU relearn idle and charging behaviour. If the power windows lose their automatic function the electric window initialization restores it, and steering angle calibration may be needed after steering repairs. Find the matching procedure for your LS in the list below.