One problem related to ignition switch has been reported for the 2008 Buick Lacrosse. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Buick Lacrosse based on all problems reported for the 2008 Lacrosse.
The car's air bag light by the speedometer has been illuminating intermittently at various speeds whether there is a passenger in the passenger seat or not. The passenger seat air bag on/off light near glove compartment turns to off when the speedometer air bag light illuminates. In June, I took the car into an independent mechanic to get the problem fixed. Unfortunately, the computer doesn't store a code for this problem. The mechanic tried to improve the connection to the passenger seat and "relearned" the computer; however, the problem still occurs. Mechanic said it "might" be a $1,000 fix which involves part of the passenger seat cushion itself! it cost me $100 to find out this much and attempt a correction, but $1,000 is ridiculous; especially for a "maybe" fix. I see others are having this problem, too. I've already had the ignition switch key fix at the dealership. I also already had the problem with the headlights turning off as we were driving down the road; our independent mechanic fixed that and I'm still waiting for the gm reimbursement on that. Hoping we can get gm to fix this air bag problem before it causes injuries.