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Gm Tech (Cam)
Gm Tech (Cam), GMC Mechanic
Category: GMC
Satisfied Customers: 1685
Experience:  GM Grand Master Technician 2007. 14 year experience.
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GMC Sierra 1500 Classic SL: How do I find the bypass code for

Customer Question

How do I find the bypass code for the anti theft system on a 1998 GMC Sierra SL with a 4.3 litre v-6 vortec
Submitted: 1 year ago.
Category: GMC
Expert:  Don 'Mo Lurch' replied 1 year ago.
what do you mean the "bypass code".......are you referring to the Radio or are you having a Security problem with the vehicle?
Expert:  Don 'Mo Lurch' replied 1 year ago.
hello?
Customer: replied 1 year ago.
I am having a security problem
Expert:  Don 'Mo Lurch' replied 1 year ago.
IF you have Factory Security, there is NO "bypass code"IF the Security Light is on:Be sure Battery is fully chargedLeave Vehicle Undisturbed for at least 14 minutesUnlock Doors with Key or RemoteTry startingIF vehicle will not start & the Security Light is Flashing, then there is an issue with the GM PassLock System.
Expert:  Don 'Mo Lurch' replied 1 year ago.
did you need more info?please respond

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