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2003 9C1 - New ignition cylinder - 'Security' light on

10K views 6 replies 3 participants last post by  wakawu 
#1 ·
Like the title says, 2003 Impala 9C1. I just replaced the ignition cylinder and key with a new set due to the old set being hard to turn and I had to jiggle it to get it to unlock.

After the install I went ahead and turned the key in between the on and crank position then left it in the on position for 10 minutes.. as seen in this instructional the security/battery light stayed on going back and forth from battery to security light. I cranked it over and it starts up just fine every time but the 'Security' light is still on solid in the dash when running. I tried the reset procedure 2 more times but after 10 minutes each time the security light doesn't go off. Could the ignition cylinder be defective or am I missing something?

Thinking maybe it would have been a better idea to just let a locksmith rebuild the old ignition switch as that only jammed up when put into the off position.

Anyway.. any advice?
 
#2 ·
So .. does it start just fine now and just the security light stays on now? Or ..

I would call around to locksmiths and ask if they have a tech 2 scanner. Some do. If not it's likely off the dealer and shop that does have one.
 
#4 ·
Did you unplug your battery when you swapped the ignition switch? If so I'd check the connections at the battery mine came on intermittently with a loose battery cable... after that I'd suspect the Passlock sensor.
 
#6 ·
Yes the battery should be unhooked if the pass lock sensor was replaced as well.
 
#7 ·
So just an update... I dunno why I didn't think of trying this before but after fiddling around trying to relearn the new passlock code I removed the new tumbler cylinder assembly and swapped it back into the old passlock housing since the housing/passlock was still good and I only had an issue with the old tumbler/cylinder anyway. Plugged it into the ignition switch and it turned right on, no security light anymore. Didn't think that would work but there ya go. I figured there would be some sort of link between each lock cylinder and passlock but apparently not.. Saved myself the pain of going to the dealer.
 
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