Car won't crank

Take it to a electrical person buick messed up how they wired some of these lacross and dont want to take responsibility. I check on and look at recalls a lot if your lights dont work theres a recall on the wires for that too. My car did this all electrical problems. I had bad ground wire going to one of the ignition relays.

Changed the battery. Now I hear a click when trying to start but won't turn over

Changed the battery. Now I hear a click when trying to start but won't turn over on 2010 buick lacrosse

Try changing fuse #12 starter

I have a 2010 buick lacrosse whats causing a security light and how do I get it to go off

Just experienced a similar problem and the issue was the starter relay. I was able to pull it out, tap it and it worked but I plan to replace it. It is located right next to the fuse 12 described above.