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2009 GMC Sierra 2500 diesel. Antitheft light came on while…

Customer Question
2009 GMC Sierra 2500...

2009 GMC Sierra 2500 diesel. Antitheft light came on while driving home last night, this morning the engine will not turn over. No click from the solenoid,no cranking at all. everything else seems to be working fine but antitheft light remains on and flashes. I have tried the 10 minute reset for 1 cycle, using the key in the door lock, even disconnected batteries for 15 minutes and the light remains on and truck will not crank

Mechanic's Assistant: Have you checked the fuses? Have you checked the door switches?

Which fuse? I checked the panel inside the door but did not see a fuse for antitheft. Is it in the panel under the hood?

Mechanic's Assistant: Are you fixing your Sierra yourself? What have you tried so far?

I’m trying. So far I have tried using the key to lock and unlock the door, turning the key on for 10 minutes then off and try starting, Using a spare key and key fob, even disconnected the batteries for 15 minutes and jump starting to ensure it’s not a weak battery issue. So far nothing will get it to turn over.

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

I am in the middle of doing 3 cycles of the 10 minute fix now, I have not checked the fuse panel under the hood for an anti-theft fuse

Submitted: 27 days ago.Category: GMC
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Answered in 1 day by:
5/27/2018
GMC Mechanic: eric remington,
 replied 26 days ago
eric remington
Category: GMC
Satisfied Customers: 733
Experience: mechanic/service advisor at topline auto
Verified

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GMC Mechanic: eric remington,
 replied 21 days ago

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