The Acadia is GMC's first crossover wagon that combines car-like handling with the utility of a 4WD wagon, offering three rows of seating for up to eight passengers. The design consists of polished aluminium roof rails, projector beam headlights, LED taillights and a rear spoiler. The Acadia is powered by a new 3.6-litre V6 with variable valve timing, mated to a six-speed automatic transmission and an optional all-wheel-drive system with no low range. The interior features a "low and away" instrument panel and a Smart Slide second-row feature allows easier access to the third row. Features include power windows, CD/MP3 stereo with six speakers, electric mirrors, keyless entry and more. Optional features include rear-seat DVD entertainment, HID headlights, sunroof, parking sensors, leather seats, tri-zone climate control and more. Standard safety features includes StabiliTrak stability control system with rollover mitigation technology, six airbags and a tyre-pressure-monitoring system. Also standard is power-assisted rack-and-pinion steering, 18-inch wheels with optional 19-inchers, and four-wheel disc brakes with ABS.
Various minor problems involve turn signal switch, sound system failure and power tailgate. Known service bulletin about timing-chain play in early models fixed under warranty by replacing all engine chains. Complaints of rattling dashboard. Many complaints of power steering making odd noises, fixed under warranty by replacing entire steering column. Dirty transmission sensors may cause "limp mode"; unrelated software update for engine and transmission also available optionally. Check of water leaking into rear-light clusters, roof headliner and under boot storage bin.