6-speed automatic transmission

• Wide gear-ratio spread and low first-gear ratio, for brisk acceleration from a stop and quick response when you need to merge on busy freeways
• Very high sixth-gear ratio for outstanding highway fuel economy (EPA-estimated 23 MPG highway, AWD) for less stops between fill-ups
• Automatic engine grade braking for helping to slow your Acadia^® on long downhill runs, which reduces brake wear and gives you more control behind the wheel

Requires available AWD models.