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Chevy Silverado and GMC Sierra Electrical and Computer Questions

355 messages,  Last post on Nov 29, 2009 at 8:10 AM

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What is this discussion about? Chevrolet Silverado 1500, Chevrolet Silverado 2500, Chevrolet Silverado 3500, GMC Sierra 1500, GMC Sierra 2500, GMC Sierra 3500, Truck

#319 of 355 Re: 2k Sierra / alarm keeps going off [whatnxt] by obyone Jul 31, 2009 (8:22 am)
Replying to: whatnxt (Jul 29, 2009 5:43 pm) I took the truck home, and unfortunately, the alarm just went off last night again.   Which alarm?   When did you install the aftermarket alarm?   Which remote are you using?   If I'm not mistaken, the aftermarket alarm also ties into the BCM. Replies to this message: whatnxt (Jul 31, 2009 5:39 pm) obyone (Aug 01, 2009 4:02 pm)
#320 of 355 Re: 2k Sierra / alarm keeps going off [obyone] by whatnxt Jul 31, 2009 (5:39 pm)
Replying to: obyone (Jul 31, 2009 8:22 am) The factory alarm is the one that keeps going off, and the aftermarket alarm was installed when I bought the truck. I am the original owner. They are both intergrated into the remotes. The way I understand it, both are programmed to the remotes you get when you buy the truck but are still two separate alarms that can function as one. I was told by both people that worked on it that the main alarm will always be the factory one and that only the dealerships can work on them because of the programming issue, since it's tied into the BCM. Aftermarket companies do not and will not touch the BCM. This also means that if you ever need a new remote you have to get it from the dealer because it has to be programmed to that vehicle via the BCM. This leaves me and anyone else with this kind of problem at the mercy of the dealers. That is unless someone out there can help with new info. Thanks for the response. Replies to this message: obyone (Aug 01, 2009 4:02 pm)
#321 of 355 Re: 2k Sierra / alarm keeps going off [whatnxt] by obyone Aug 01, 2009 (4:02 pm)
Replying to: whatnxt (Jul 31, 2009 5:39 pm) The dealer installed the aftermarket alarm when you originally bought the truck?   Sounds like something is shorting to ground as in bad wiring.
#322 of 355 Re: Turn Signal/Back up Light 2007 Silverado [bob2007chevy] by ffkc120 Aug 17, 2009 (3:09 pm)
Replying to: bob2007chevy (Jul 28, 2009 2:52 pm) I have had many similar problems. I have a 2006 GMC sierra 1500 4x4.. and my brake lights will burn out almost every other month, along with the parking amber lights. Just the other day i was headed to work and pushed in the cigg. lighter and smoke started rolling out from under my dash. I had to pull over and let the smoke clear out. I could smell burnt rubber. then the next day, I stopped at the gas station and turned the truck off, and it wouldnt even turn off. then it said service 4x4 system, which had never been used. I drove home unhooked the battery to turn it off, still wouldnt turn off, then i unplugged fuses untill it would turn off. I took it to the dealership and talked to gmc customer service .. it now needs 1400$ worth of parts and new wiring harness. gmc tells me they cant assist in payment because there was no mechanical defect?? im not to sure how it was my fault at all, and how it wasnt a defect. hopefully this doesnt happen to your truck, i know i won;t buy another one.
#323 of 355 06 chev 250 4x4 v8-engine power reduced by grampa2 Aug 19, 2009 (4:23 pm)
truck only goes 40 km/h- light on dash says engine power reduced-truck is in great shape-what could be the problem-never heard ot this type of waring light????
#324 of 355 Re: 2004 GMC Sierra 2500 Alarm Problems [sdlerner] by himie Aug 23, 2009 (6:14 pm)
Replying to: sdlerner (May 30, 2008 5:55 pm) I have a 2003 2500 Sierra with factory alarm thatbis going off in the middle of the nigh. I was wondering if you ever came up with a solution to your problem. Replies to this message: grampa2 (Aug 24, 2009 5:06 am) himie (Aug 27, 2009 12:51 pm)
#325 of 355 Re: 2004 GMC Sierra 2500 Alarm Problems [himie] by grampa2 Aug 24, 2009 (5:06 am)
Replying to: himie (Aug 23, 2009 6:14 pm) disconnedted battery for a few minutes, it must have reset.try e-mail the alarm company and ask them, they usually try to help??? Replies to this message: himie (Aug 27, 2009 12:51 pm)
#326 of 355 Tire pressure monitor by idaho3 Aug 27, 2009 (4:43 am)
Anyone know how to turn the tire pressure monitor off. I have changed wheels and tires. I do not what to unmount the original wheels to get the tire pressure senders
#327 of 355 Re: 2004 GMC Sierra 2500 Alarm Problems [grampa2] by himie Aug 27, 2009 (12:51 pm)
Replying to: grampa2 (Aug 24, 2009 5:06 am) I disconnected my battery for about 10 hrs. After reconnecting it my factory alarm went off like it did previous times in the middle of the nite. Took about 1 hr after being reconnected before it went off again. Anybody know who to contact about a factory alarm. GMC dealers want $100 to check it out. Trying to save some money if it is something simple.
#328 of 355 2004 SS Turn signals by 2004ssguy Aug 31, 2009 (9:48 pm)

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