2008 sierra electrical problems

[ryanwilson]

Every 2 months or so while driving the door locks, ip lights, headlights,etc. start going crazy. Checked all grounds and connections but they seem fine. If i unhook the battery for a while and then reconnect it, it is fine for another couple months. Im thinking a possible bad BCM? Any help would be greatly appreciated

 

[GMC Customer Service]

Every 2 months or so while driving the door locks, ip lights, headlights,etc. start going crazy. Checked all grounds and connections but they seem fine. If i unhook the battery for a while and then reconnect it, it is fine for another couple months. Im thinking a possible bad BCM? Any help would be greatly appreciated

Hello ryanwilson,

Have you had your Sierra into a GMC dealership to have them look into this concern yet? If you haven’t and you would like to, I would be more than happy to assist you in setting up an appointment. Please be sure to keep us updated and feel free to send me a private message if you would like my assistance.

Gregory W.
GMC Customer Care