The SLE-1 comes standard with 18-inch wheels, automatic headlights, a rearview camera, rear parking sensors, rear privacy glass, keyless entry, cruise control, a leather-wrapped tilt-and-telescoping steering wheel, OnStar telematics, Bluetooth phone connectivity, a 6.5-inch touchscreen display and a six-speaker sound system with a CD player, satellite radio, a USB port and an auxiliary audio jack. There are also dual USB charge-only ports on the rear of the center console. On top of the SLE-1's equipment the SLE-2 adds remote vehicle start, a power liftgate, an eight-way power driver seat (with two-way lumbar), a two-way power passenger seat (manual recline), an auto-dimming rearview mirror, and the Intellilink electronics interface that includes voice controls, Bluetooth audio connectivity and smartphone app integration. Further up the ladder, the SLT-1 adds 19-inch wheels, foglamps, variable-effort steering, heated mirrors, tri-zone automatic climate control, leather upholstery in the first and second rows (third row vinyl), heated front seats, an eight-way power passenger seat, rear-seat audio controls with headphone jacks and a 10-speaker Bose sound system. The SLT-2 adds power-folding mirrors (with a driver-side auto-dimming mirror), driver memory functions, a heated steering wheel and access to additional options. These add-ons include ventilated front seats and the Technology package, which includes xenon headlights, a head-up display and cargo area audio controls. The Denali includes all of the SLT-2's optional items, plus unique styling flourishes inside and out, 20-inch chrome-clad wheels, dual exhaust tips, a panoramic sunroof, forward collision alert system, lane departure warning system, increased sound insulation, a wood-trimmed steering wheel and a navigation system. That sunroof is optional on all other Acadia trims except the SLE-1. The SLT trims and the Denali can also be equipped with a rear-seat entertainment system that includes a Bose surround-