Standard features on the base GX 460 include 18-inch alloy wheels, heated side mirrors, rain-sensing wipers, running boards, a sunroof, leather upholstery, a leather-wrapped power tilt-and-telescoping steering wheel, eight-way power-adjustable heated/ventilated front seats (with power lumbar), driver memory settings, power-folding third-row seats, dual-zone automatic climate control and an auto-dimming rearview mirror. Also standard are a back-up camera and a nine-speaker audio system with a six-CD changer, Bluetooth audio and phone, satellite radio, iPod connectivity and an auxiliary audio jack. The GX 460 Premium adds adaptive variable suspension (with rear adjustable height control), auto-dimming sideview mirrors, adaptive xenon headlights, upgraded leather upholstery, a heated wood-trimmed steering wheel, heated second-row seats and rear air-conditioning. Most of these features are available as options on the base model. The 2013 Lexus GX 460 comes standard with antilock brakes, traction and stability control, hill descent control, hill start assist, front- and rear-seat side airbags, driver and front passenger knee airbags and roll-sensing side curtain airbags spanning all three rows.