Scion xb  lighting system of a motor vehicle consists of lighting and signalling devices mounted or integrated to the front, sides and rear of the vehicle. The purpose of this system is to provide illumination for the driver to operate the vehicle safely after dark, to increase the conspicuity of the vehicle, and to display information about the vehicle presence. Position, size, direction of travel, and driver's intentions regarding direction and speed of trave xb.

• On some models, xb white cornering lamps provide xb extra lateral illumination in the direction of an intended turn or lane change. These are actuated in conjunction with the turn signals, though they burn steadily, and they may also be wired to illuminate when the vehicle is shifted into reverse gear, such as on many Saabs and Corvettes.North American technical standards contain provisions for front cornering lamps[15]as well as for rear cornering lamps.[16] Cornering lamps have traditionally been prohibited under international ECE Regulations, though provisions have recently been made to allow them as long as they are only operable when the vehicle is traveling at less than 40 kilometers per hour (about 25 mph)

Main-beam  vehicle  xb (also called high, driving, or full beam) xb headlamps provide an intense, centre-weighted distribution of light with no particular control of glare. Therefore, they are only suitable for use when alone on the road, as the glare they produce will dazzle other drivers. International ECE Regulationspermit higher-intensity high-beam headlamps than are allowed under xb North American regulations.

Vehicle xb used in rallying, off-roading, or at very high speeds often have xb extra lamps to broaden and extend the field of illumination in front of the vehicle. On off-road vehicles in particular, these additional lamps are sometimes mounted along with forward-facing lights on a bar (commonly referred to as a light bar) above the roof, which protects them from road hazards and raises the beams allowing for a greater projection of light forward vehicle  xb.