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How can I reset the theft deterrent system on my 2015 GMC Sierra?
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2 answers
★ Top Answer
In order to reset the alarm on your 2015 GMC Sierra, you have two choices. The first method involves opening the hood and disconnecting the positive battery cable, leaving it off for around 30 minutes. This action will drain the power from the CPU, prompting the system to reset itself upon turning back on. Another option is to remove the fuse from the fuse box and wait a similar amount of time. This will achieve the same result but with more precision. Disconnecting the battery will reset various systems, while pulling just the fuse will solely reset the alarm. However, you will need to refer to the fuse diagram to identify the correct fuse.
More answers
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To reset the anti-theft system on a 2015 GMC Sierra, you need to unlock the driver's side door using the key, then lock it, unlock it again, and the system should be reset.
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