Question about 1998 Chevrolet Lumina
Turn key to on, let the light flash till it stops (usually 10-15minutes) and remains steady on. then re-start the car. If this does not work, try it three times. If still no luck the problem is likely the ignition lock sensor or the module, most often the tumbler.
Posted on Oct 05, 2009
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Posted on Jan 02, 2017
SOURCE: flashing security light
if ur key has the security chip in it, it possible that ur ignition switch isnt reading that chip right away. i mean as long as u can get ur car started try and not get too worried about it. it is possible that ur ignition might be goin bad so try to keep an eye on it and if it starts to get worse take it in.
Posted on Sep 18, 2008
had same problem in 99 aurora. fixed it here
from the above site:
It worked well for me for about ten years, but I finally got fed up with not being able to start my own car with my own key. I don’t like to get screwed on car repairs, so here’s what happened. I used Google for a while and found some websites with more information than I really needed, and I read it all. If you are having the same problem, you have probably figured out what is going on. You turn the key. The car doesn’t start, but the ‘SECURITY’ indicator blinks. You give up, and it stays lit. You know that the little resistor in the key is not making good contact. You can go Google for those other sites as well, but you really don’t need all the information they give. I had been putting off the job because I thought I was going to have to crack open my steering column. This was not the case. Here’s how it worked on my 97 Camaro:
Posted on Sep 29, 2009
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