Question about 1994 Pontiac Bonneville

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Security light on and engine won't start

This is a 1994 Pontiac Bonneville with a 3.8 V6 engine.Sometimes the engine won't start and the instrument panel security light comes on. Is there an easy cure or can something be bypassed so it will run?

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Change the ignition switch

Posted on Feb 13, 2009


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Look for a light on the dash that says SECURITY when you try to start the car. If you see this light, this link will explain your NO START problem.

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Did you or do you have any starting problems with vehicle? Milky oil may be a cause of too many short trips, is that possible?

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Check your battery cables,, they are probably loose or corroded. Side mount batteries that hold multiple cables have this problem that occurs over an extended period of time. Cleaning the connections and retightening the hold down bolt may fix it. Sometimes a 3/8 bolt and a washer with a nut can be used to get
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