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Old 08-17-2016, 12:29 PM   #61
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Here is a weird idea - have you towed the trailer without hooking up the electric connection? It could be that the drag of the trailer is causing issues with a wheel sensor?

I am also one of those who believe in process of elimination and root cause analysis instead of throwing parts at a problem.
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Old 08-17-2016, 05:12 PM   #62
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I bought a 2014 GMC Sierra in November of '14. Prior to that I had an '07 GMC Sierra and had used it to pull both my 18' work trailer with electric brakes and my previous 29' FR Grand Surveyor with electric brakes and no problems. After buying the new truck I did pull the camper twice before buying a new one in January of '15. On the way home from the dealer, about 90 miles away, I lost the brake lights, the ABS light came on, and the service engine came on. I was closer to home so I went on home. The next day I took the truck to the selling dealer and the service writer stated he knew what it was, a blown fuse for the trailer brakes. At that time they did not have any replacement fuses as they had run out of them. What does that tell anyone? I sort of pitched a fit that I had to operate the truck without this fuse and all those idiot lights on. When I asked why they could not take a truck off the lot and remove that fuse so my truck would be fixed you would have thought that I had thrown hot water on the service manager and the so-called vice-president of the dealership. Three to four days later they called to tell me to bring them the truck as they had a new fuse for me. They replaced the fuse and everything seemed to be alright. I went home and hooked up to my fairly new camper and yep the fuse blew again and all the idiot lights came on. I took the truck and trailer back to the dealer, parked so that one of their driveways was blocked, went inside and the service manager looked as if he had seen a ghost. I told him I was not moving that truck and trailer until they decided to find and fix the problem. One of their mechanics was out in the service center lobby and heard that conversation. He came over to ask me what was going on and I told him. He told me that they were aware of this problem with the introduction of the 2014 new again body style models. He even told me that was a Technical Service Bulletion (TBS) on this problem and it would require a new "body control module" to fix the problem. The service manager was looking at this mechanic like "you're butt is fired dude". I stood there in front of maybe 6-8 people and told the service manager that IF this mechanic is punished in any way for telling me this I would cause him more problems than he could tolerate. He stomped out of the service writing office area and went off somewhere, I didn't care where. Another service writer came over and asked me to come to their parts department with him and he would order the new BCM for my truck. When I got to the parts department I knew one of the workers there. When I asked him if they had ordered these BCM's for other '14 trucks he looked at me with a smile and stated that maybe half of the trucks this dealership had sold had to have the BCM replaced. The new BCM came in a few days later, they called me and I took the truck over to them. They offered to loan me a brand new 2014 Sierra for two days while they worked on my truck, how nice of them. After the new BCM was installed I told the mechanic I was going straight home and hook up my camper to see what happened. He told me that nothing would go wrong as GM had redesigned the BCM program, it was some sort of electrical back feed from using the trailer brakes that would cause that fuse to blow. So far I have had no other problems such as this. I hate people, such as a service writer, who just blatantly lie or mislead a customer just to make his life easier.
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Old 08-17-2016, 05:53 PM   #63
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Thurman, they replaced and programmed what they called a chassis control module during the 6th repair attempt. Unfortunately that didn't fix it. Your story is similar to the runaround I'm getting. That's the most frustrating part for me. Not every vehicle will be perfect, but the "customer service" has been absolutely awful. I don't understand how they can stay in business treating customers this way. I always wondered why Ford has outsold Chevrolet for the last 40 years. Now I know.
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Old 08-17-2016, 06:13 PM   #64
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Quote:
Originally Posted by bridgekev View Post
Thurman, they replaced and programmed what they called a chassis control module during the 6th repair attempt. Unfortunately that didn't fix it. Your story is similar to the runaround I'm getting. That's the most frustrating part for me. Not every vehicle will be perfect, but the "customer service" has been absolutely awful. I don't understand how they can stay in business treating customers this way. I always wondered why Ford has outsold Chevrolet for the last 40 years. Now I know.
And I'm sure Ford and Dodge owners could probably relate similar customer service issues like yours too. The sad part of all of this is no one has the true wherewithal to solve the problem. And for that, I'm sorry for your trials. This is just one of many reasons I left the industry.
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Old 08-17-2016, 06:48 PM   #65
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I have a Honda Pilot that has the abs , engine light and vtm-4 lock light on all the time . I looked it up and found someone who had this issue and they claimed that something triggers the abs which then affected the rest like a domino affect - I've been driving like this for years - no problems


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Old 08-23-2016, 09:04 PM   #66
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Bridgekev, I heard about your concerns on a GM forum. I work for GM technical assistance, a help line for dealer mechanics. Believe it or not, we do not want unhappy customers. Because this only occurs with the trailer attached it does appear to be trailer related. It is possible this is from a badly grounded Piezo igniter throwing random voltage all over the trailer and truck chassis. This can be eliminated by disabling the igniter while towing and turning off the gas flowing to the hot water heater and refrigerator. As inconvenient as it my be to tow with the fridge off, I'd suggest trying that to determine if that eliminates your issue. If any of the dealers you had your truck at contacted GM technical assistance I could access that information if you sent me your VIN. 
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Old 08-24-2016, 10:05 AM   #67
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Two of the dealers contacted GM. The fridge was off and empty the first time. Because we were on a trip the last time, it was on and stocked. The vin is 1gC1cveg2Ff507275. I'd turn off the fridge to make these issues go away
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Old 08-24-2016, 02:53 PM   #68
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If you are not willing to do some troubleshooting yourself, you might as well sell the truck for what you can get, and move on. It only has problems when connected to a/your trailer, so anyone test driving it won't see the issue. And since multiple dealers have not solved the issue (who are not RV pros), if/when the next owner of your truck hooks up their trailer, they probably will not have the problem.




I only hope your trailer does not give you the same problem on your next Ford or Ram.
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Old 08-24-2016, 04:09 PM   #69
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Sell a new truck under warranty for what I can get? Not a chance of that happening. This is why there are lemon laws. It's a pita, but there's no way I'm eating$10k because Chevy sold me a pos.
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Old 08-24-2016, 04:52 PM   #70
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Surely your RV dealer will loan you another RV for a trip to see if it is the Trailer, not your truck.
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