Yotaman

My 2014 Sierra SLE 5.3 w/68K miles started a while back running a lil less than 210 it was used to. I was not too concerned at first but the needle was drifting cooler as time passed so I hooked up my OBDII scanner and saw it was cycling between 160-175 running down the road so I thought no biggie till I read here about the cracking radiators. I called my Dealer but was told no warranty too far out so I bought a new Thermostat and some Dex Cool and swapped it out this morning. Job went well and now I am reading 210 on my gauge and scan tool. Hopefully I caught it before any radiator damage it looks good where I can see no signs of any leak. Thanks for the thread Guys sure makes shade tree mechanic lives easier. Yotaman

Just FYI when I had my done two weeks ago the entire bill was like 650-700 bucks from my local GMC dealer. 22R

Dropped of at 10 and done by noon. Condenser has the new part number and the lil heat shield but unsure if it is actually a improvement it looks a lot like the old one. If I can get another 5-6 years I will be happy cause by then I will be back in a Toyota. Yotaman

2014 Sierra 60,200 miles went out today. Will go to dealer as I have a extended warranty. Will inquire about the 2019 part number Felipe referred to in above post. Last GM 22R

I kinda hope mine in my 2014 SLE goes out before April 2021 when I lose my extended warramty…… sad thinking but I almost prefer to do it myself only once with a aftermarket part. Ohh GM....neva again Yotaman

Yes truck is all stock. Thanks for all the replies and ideas. Yotaman

Does anyone have a link to a trans pan with a drain plug that is not so expensive. The stock one is cheap enough do they make a version with a plug ? 2014 GMC Sierrra 5.3L / 6- speed. Not a welder so the weld in plug not really a solution for me. Thanks, Yotaman

Does this condition eventually happen to all 2014's ? I have one with 53,000 miles and AC seems fine just wondering if I am on borrowed time. Is there anything to do on a preventative side to stop or slow down the cracking of the condenser ? Thanks, Yotaman

Final update I hope. Over a week with no alarms coming in but I was confused they replaced the Brake fluid reservoir level switch and that seems to have fixed the issue. Not sure why I never got low alarm but I am not looking a gift horse in the mouth. New owner dealer service mgr replaced it under factory warranty too. So hopefully I have many more miles trouble free. 22R

As a update I tried sanding the G218 ground as well as the one on the opposite side but that did not work, I ran a extra ground from the battery negative post to the chassis thinking that if the ground was bad maybe that would stop it to no avail. I was getting my tires rotated at my local tire dealer and mentioned the issue to him and his mechanic pulled a few different codes and said it looks like a communication issue but we do not do that type of repair. So I called GM Customer Service to complain that I have lived with this for almost 5 years and am upset that a tire dealer could hone in on a possible problem but not a GM dealer...…..so of course apologies and understands but my truck has to be checked by a dealer to go forward. So I go back to my dealer who is under new ownership and a new looking service crew. I explain what has happened and they take the truck wait an hour and then tell me the brake switch is bad and we will order it. I go back next Friday to have it replaced. The new service advisor apologizes says it should have been fixed a long time ago. I won't know for a few weeks after if that really fixes it but the service manager seems genuine and seems like he really wants the problem fixed. A post I read a while back someone here said they had the same issue on a 2011 or 13 maybe and it was the brake switch so hopefully I will get lucky. Just posting so if anyone else has this issue It may give them hope to possibly fix it. Yotaman

I find it ironic that my 1988 Toyota PU had a sliding damper that went from recirc to fresh and when the recirc door closed no outside air came in......Ohhh the simple things I long for. I really don't understand my 14 Sierra system and do not even really try. Yotaman

Anthony J, Since I have a old truck and not expecting any sort of help as GM couldn't when it was newer, I would like to know what exactly do you GM reps do on this forum ? Why have someone PM you for a update ? Why not you share what you know about the issues brought up as maybe the fix will apply to a lot of other owners too ? If your sole reason is to make a appointment at a dealer then I think most owners can handle that part ? Not trying to be smart but I always wondered the true intent of what you guys do cause I don't recall ever seeing a solution to a problem addressed by your team. Thanks, Yotaman

Wow ! I am not sure but I hope you get some sort of help. Others will be along to give input that have had similar experience. I think that I would contact GM and open a case be polite and tell them what has happened and request a good will repair. People always say I am biased and brainwashed but stuff like this never happens to the Toyotas that I have owned. Best of luck, 22R

Do a search for G218 ground some have reported that doing this simple repair fixed the issue. I get the Service brake assist and Stabiltrac together and it did not work for me but I never had anything worse than that nuisance alarm.

I put the rubber and hose clamps on years ago and have had to tighten em up a couple times since. They worked great but I had to keep the front part of the seat at it's highest point or it was still a bit loose. I did the washer fix this weekend and left the hose clamps and it is solid any way I go. I also tightened my G210 and 218 ground points to try a correct my Brake and Stabiltrac alarms and so far so good but I still think they will return. A shame we have to fix all these issues years later cause GM never could. My truck is nice but never again GMC..... I will be Yotaman again next time around. Thanks for the fix whoever "engineered it " Yotaman

Sounds like the GM I know.....and as a owner of a first year 2014 sadly you may have to get used to some stuff or plan on spending days at a dealer or leave your truck with them and gamble on it's condition when you get it back. Professional grade my azzz........ Yotaman

I hope it works out better for ya'll than my 14 Sierra. I have gotten Service Stabilitrac and Brake assist since 300 miles. Was told if not on can't do anything about it. Stop by when it comes on but it always clears within a few (10 Miles) plus even if I ever made it to a dealer like they could get someone out to it while it was in is a long shot. I just live with it and hope one day is does not clear and I will bring my 300 mile service receipt plus a few others from later dates and hope they honor it but I won't have my hopes up. Yotaman

No mine still does it just not as frequent as it used to. I guess I will revisit the G218 ground and sand the connection and do the other side as well since I know how to and it has slowed down since I first did it but that could be a fluke as well. Yotaman

Appreciate your responses Guys. Mine seems to do it every afternoon at work as soon a I start the motor. So I am not even moving yet and both alarms come in always both of em never just one. For a while I have thought maybe it is something to do with the Bluetooth or when I connect my phone by cable to the truck but I cannot find any consistency in it. I will look into the brake pedal further too. It is only a nuisance but I still irks me. I am thinking it sitting in the hot sun like a ground point may lose good contact from contraction and expansion or something too ??? You get to be a half azz mechanic owning these newer trucks these days I tell ya that. Yotaman

Thanks for your response. 22R

No but it looked to be clean metal to metal contact. Thanks for the reply. Yotaman

Well damm damm damm I spoke too soon.... came back on next start. Knew it could not be that simple. Yotaman (last GM Man )

Update I did the G218 mod yesrerday. A couple notes for anyone interested. Watching the youtube video is a big help. The nut that holds the ground is deeper and harder to get at than I realized. I used a 10mm wrench to loosen it but once you get about a half turn loose it will thread right off. I did not cut the insulation I simply removed nut pulled off ground wire the folded the insulation material back towards the pass side then put the ground back with the nut on top then let the insulation fold back over the spot where it went. Thus far I have started my truck 8-10 times and still no alarms. If I go through next weekend without any I will consider it fixed.... could it really have been this simple ?? thanks Yotaman

My 2014 Sierra with 42k has since around 300 miles popped up the message to service stabiltrac and brake together from time to time. My dealer said they can not find a issue with either system and the alarm would have to be in to troubleshoot. Problem with that is it only stays on for a few miles then goes off. I have read about wheel sensors and now the G218 issue. I am going to pull the dash and look at the ground and fix that but I was wondering if anyone else has done this with only the two messages I have coming in and it fixed the issue. It looks like other people has had a lot more issues like more error messages and the jerking steering wheel and dimming lights. I hope I correct my issue but I am thinking the ground while not hurting to check it and fix it is not my issue. I thought years ago it was the Range but I got rid of it and the message continues to pop up with no set frequency. Hoping that someone chimes in that had the identical issue and did the G218 fix and it worked to give me some hope. Yotaman

Did mine about an hour ago works like a charm. Thanks Spurshot !!!