The 2016 GMC Acadia is a three-row crossover SUV offered in three basic trim levels: SLE, SLT and Denali. The Acadia SLE-1 comes standard with 18-inch alloy wheels, automatic headlights, rear parking sensors, rear privacy glass, roof rails, cruise control, cloth upholstery, a leather-wrapped tilt-and-telescoping steering wheel, Bluetooth phone connectivity, OnStar telematics services (see Safety section for details), a 4G LTE built-in WiFi hotspot, a rearview camera, a touchscreen electronics interface and a six-speaker sound system with a CD player, USB/iPod interface, an auxiliary audio jack and satellite radio. The SLT-1 adds 19-inch wheels, upgraded steering, heated mirrors, tri-zone automatic climate control, leather first- and second-row seats (third row simulated leather), heated front seats, an eight-way power passenger seat, a 10-speaker Bose surround-sound audio system and rear headphone jacks.