2008/2009 GMC C6500 Diesel, Keyless/ Remote Start Wiring

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Forum Name: Vehicle Wiring Information & File Requests
Forum Discription: Request Car Alarm, Car Stereo, Cruise Control, Remote Starter, Navigation, Mobile Video, and Other Vehicle Specific Wiring Info, Manuals, Tech Tips
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=147108
Printed Date: May 04, 2025 at 8:35 PM

Topic: 2008/2009 GMC C6500 Diesel, Keyless/ Remote Start Wiring

Posted By: miketheman
Subject: 2008/2009 GMC C6500 Diesel, Keyless/ Remote Start Wiring
Date Posted: November 02, 2021 at 10:08 PM

Im looking to add keyless entry as well as remote start to a 2008/2009 GMC C6500 Diesel.
If anyone knows where I can find wiring info... TIA

Replies:

Posted By: miketheman
Date Posted: November 02, 2021 at 10:09 PM

Its a regular key without a chip or immobilizer

Posted By: Ween
Date Posted: November 04, 2021 at 6:29 PM

Try here: https://www.gmupfitter.com/wp-content/uploads/2021/07/2008_MD_Electrical1.pdf
But you'll need to know how to read schematics.

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