Joined: Jun 2010
Posts: 119
Theftlock
11/15/2016 at 3:36 PM
Probably the same problem in Grand Ams and Aleros that I've seen...... the ignition tumbler has an anti theft function that can act up. I don't remember the entire diagnosis, but when you turn the key to the on position, check to see if your security light is still flashing on the dash. If it is, it's probably a faulty tumbler. I believe you can leave the key in the on position for approximately 10-15 minutes to do a relearn on the key itself, but I'm no mechanic.