2009 GMC Acadia Owner's Manual - Page 37
2009 GMC Acadia Manual
Page 37 highlights
Seats and Restraint System 1-33 { CAUTION Never do this. Children who are up against, or very close to, any airbag when it inflates can be seriously injured or killed. Never put a rear-facing child restraint in the right front seat. Secure a rear-facing child restraint in a rear seat. It is also better to secure a forward-facing child restraint in a rear seat. If you must secure a forward-facing child restraint in the right front seat, always move the front passenger seat as far back as it will go.