One problem related to side/window air bag has been reported for the 2009 Buick Lacrosse. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 Buick Lacrosse based on all problems reported for the 2009 Lacrosse.
I wish to formally complaint that Buick has been remiss in its service to its customers. After a simple google search I found that the problem of malfunctioning passenger side airbag module (passenger presence is not detected when the passenger is in the seat and shows malfunction on the dashboard) is pretty common with this vehicle. I am very surprised Buick is not aware of this serious flaw and did nothing to rectify it. Instead the customer is beset with high repair costs each time this module fails due to design flaw than due to normal wear and tear.