ANTI Theft keeps activating GM Passlock?? - Chevy Colorado & GMC Canyon

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Old 08-17-2008, 06:22 PM   #1 (permalink)
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Default ANTI Theft keeps activating GM Passlock??

About once or twice a week my POS passlock trips me up and will not let me start my truck, the security light on dash blinks and after about 9 minutes it will come on steady and I can then crank my truck and go about my business. This happens sometimes 2 or 3 times in one day and then it may not do it for a week or so. Any ideas as to what I can do to prevent this from happening, I am not sure what I am doing wrong but everytime it happens, my truck like almost starts and I let go of key too soon. Therefore I try like **** to make sure I hold key all the way until it actually starts, even though it still happens sometimes.
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Old 08-18-2008, 12:16 AM   #2 (permalink)
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Default Re: ANTI Theft keeps activating GM Passlock??

First step is to search the forum, since there are a ton of topics about passlock.

Next, try cleaning the key up a bit. I read that can help [and its free].
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Old 09-02-2008, 11:41 PM   #3 (permalink)
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Default Re: ANTI Theft keeps activating GM Passlock??

mine was doing the same thing, tokk it to dealer at first , left it for 3 days , they could not reproduce the problem so i picked it up and sure enough 2 days later it did it so my dealer called there tech support which told them to test the passlock sensor, they changed it and it hasent done it since, its been about a month, but considering it was doing it about twice a week , im pretty sure that was the problem
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Old 09-29-2008, 04:51 PM   #4 (permalink)
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Default Re: ANTI Theft keeps activating GM Passlock??

Had the same problem with my 2004 colorado. Many trips to dealer, rental car, monitoring device.
Finally diagnosed it myself. It was the passive anti-theft device caused by a faulty ignition switch. This was after an unnecessary fuel injection clean, two separate monitoring devices.... Gm paid to replace ignition switch...even after warranty expired. FYI in the interim....wait exactly 10 seconds before trying to restart.
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Old 09-29-2008, 09:47 PM   #5 (permalink)
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Default Re: ANTI Theft keeps activating GM Passlock??

i have to wait like 10 minutes before mine will start
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Old 10-02-2008, 09:02 AM   #6 (permalink)
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Default Re: ANTI Theft keeps activating GM Passlock??

it is the ignition key sensor, i had the same problem on my 07... if this many people are having this problem i wonder how reliable the replacement is
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Old 10-02-2008, 12:35 PM   #7 (permalink)
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Default Re: ANTI Theft keeps activating GM Passlock??

I have the same frickin problem!!!!! I have an aftermarket (Clifford) top of the line remote start/alarm system on my truck! When I auto start with my remote and for some reason it don't start (like if I havent driven it for a few days) then it wont even start with the key!!!!!!!!! I have to wait like 10mins, and then it will fire right up! I called the audio dealer that installed it and they said to bring it in so they can look at it. But I'm wondering if that is going to be a waste of time. What do you guys think? Is this the same passlock problems that I'm incountering? It will just sit there and turn over but never start!! So frustrating exspecially when I'm late for work.
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Old 10-02-2008, 03:08 PM   #8 (permalink)
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Default Re: ANTI Theft keeps activating GM Passlock??

I'd take it to the dealer to get a replacement sensor. You should still be under warranty, right?
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Old 10-02-2008, 03:40 PM   #9 (permalink)
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Default Re: ANTI Theft keeps activating GM Passlock??

Nope I think it just ended!
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2006 Colorado Z71 4x4 I5 Crew Cab; Summit White
Purchaced 06/28/06
20% Tinted Windows
Spray-in Bed Liner
Bug Shield, Sunroof & Rain Gaurds
Aftermarket SS Nerf Bars
Billet Grille
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Clifford Auto Remote Start w/Alarm, 10" Amplified Sub Box
K&N 57 FIPK Series Cold Air Intake
Rancho 5000 Shocks, 2" Bubaloo Shackles & 2" TB Lift
SuperModulation 3/4" Diff Drop Kit
Soon to be installed: BFG 285/75/R16 AT KO's & Moto Metal 951 Rims & Westin SS Brush Gaurd
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Old 10-02-2008, 04:13 PM   #10 (permalink)
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Default Re: ANTI Theft keeps activating GM Passlock??

You can always call customer service. They might be willing to give you a discount or something. It wouldn't hurt.
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