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... Hi "spelos" I've always been a patient person and this encounter worked for me. ...
Glad it worked out for you. That type of behavior is really disruptive to work flow in a shop, though. You'd understand if you ever managed the job queue at a dealership's service center like I have.
 

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Day two, GMC advised my dealer specific items to check. Was determined to be a bad "Body Control Module." Also a little FYI, was advised that the liquid battery that came with my car only last a couple of years and was replaced with a new dry battery.. :)
(y)Good to hear they got to the problem. Still a pretty rare thing for a BCM in a new vehicle to fail so soon.
Also, I'm assuming the battery they are putting in is an AGM battery. I was under the impression many new vehicles are being shipped with AGM batteries. AGM batteries are still technically, "wet", but the electrolyte is contained, or "absorbed" in glass mats. Therefore the AGM designation for "Absorbed Glass Mat".
 

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Discussion Starter #24
Your service adviser may be misinformed according to this article: AGM vs Flooded Batteries - What You Need to Know
Thanks for the info: but at my age it's all Greek to me. Still under warranty, it's fixed I'm happy. I went into a restaurant last month to buy a take out dinner. The guy points to a menu, I looked. Told him I don't want an entrée I wanted a dinner. I don't get out that much. :)
 

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... Still under warranty, it's fixed I'm happy. I went into a restaurant last month to buy a take out dinner. The guy points to a menu, I looked. Told him I don't want an entrée I wanted a dinner. I don't get out that much. :)
That's the thing which matters most. (y) BTW, I have 3 back-to-back-to-back 50-year anniversaries that started last year. First is membership in an organization (from where my name is derived), second is high school graduation, and third is enlistment. Retired as well, but I'm neither a luddite, nor language-challenged. ?
 

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Day two, GMC advised my dealer specific items to check. Was determined to be a bad "Body Control Module." Also a little FYI, was advised that the liquid battery that came with my car only last a couple of years and was replaced with a new dry battery. Hi "spelos" I've always been a patient person and this encounter worked for me. Thanks everyone for your input, hope my problem can help anyone else that may have the same problem. :)
What is a "liquid battery" vs a "dry battery?"

Never heard this terminology. Generally (at least historically) new car batteries were the same as any other battery and would be good for about 4 years or longer. I always used 4 years as my change point. Of course, any battery could always fail sooner.

george
 

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That's the thing which matters most. (y) BTW, I have 3 back-to-back-to-back 50-year anniversaries that started last year. First is membership in an organization (from where my name is derived), second is high school graduation, and third is enlistment. Retired as well, but I'm neither a luddite, nor language-challenged. ?
'WOW, you are a youngster. I attended my 65th high school reunion last year. It has even been 60 years since I joined the Air Force and 38 years since I retired from the AF.

George
 

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... Of course, any battery could always fail sooner.
They can also last longer than many anticipate. I haven't had to change a battery in the last few new vehicles I purchased:
1980 Datsun - traded in 1991
1991 Buick - killed in 1999
1995 Lumina APV - purchased by company for use as a field vehicle, burned in 2006
1999 Buick - traded for Acadia
The only reason I had the Acadia battery changed is because it started showing a weak cell after 9 years of periodic testing. A battery test along with preventive maintenance will help with the decision, instead of just throwing your $$ away on something which isn't really necessary to do. Some people call it conservation of natural resources and waste reduction. ;)
 

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What is a "liquid battery" vs a "dry battery?"

Never heard this terminology. Generally (at least historically) new car batteries were the same as any other battery and would be good for about 4 years or longer. I always used 4 years as my change point. Of course, any battery could always fail sooner.

george
I think they got the battery terminology incorrect. Likely, they meant an Absorbed Glass Mat (AGM) battery as opposed to a classic lead/acid battery with the lead plates in a reservoir of liquid acid electrolyte in each battery cell.
People get confused and an AGM battery is still a "wet" lead/acid battery with the acid contained in fibrous glass mats between the lead plates in each cell.
The so called "dry" aspect is that there is no sloshing around of acid in the cells since it is contained in the glass mats and no water or additional electrolyte acid has to be added for maintenance.
AGM batteries and even traditional batteries in the past 10 years or so do not seem to last as long as batteries of past year. The plates are thinner and size is reduced to save weight.
I too will replace a battery every 4 to 5 years. Right now, because of being "Safe At Home" I have our vehicles on battery maintainers since they sit for a week or more till we might need to go get groceries and such.
BTW. . Air Force vet here also, but only 4 years service as an electronics crypto tech. Went in in '69 and honorable in '73.
Retired in 2008 just as the bank derivatives and economy all hit the fan.
 

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Day two, GMC advised my dealer specific items to check. Was determined to be a bad "Body Control Module." Also a little FYI, was advised that the liquid battery that came with my car only last a couple of years and was replaced with a new dry battery. Hi "spelos" I've always been a patient person and this encounter worked for me. Thanks everyone for your input, hope my problem can help anyone else that may have the same problem. :)
Thanks for your post. I have a 2017 Acadia sitting in my driveway with 36K miles and it would not start 4 days ago. I was just furloughed last week due to COVID and am watching every penny especially now that I am just past my 35K or 3 year warranty. I noticed last week that the car was a little hesitant a few times with acceleration and so I'm wondering if I might also have a bad BCM and battery.
 

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Thanks for your post. I have a 2017 Acadia sitting in my driveway with 36K miles and it would not start 4 days ago. I was just furloughed last week due to COVID and am watching every penny especially now that I am just past my 35K or 3 year warranty. I noticed last week that the car was a little hesitant a few times with acceleration and so I'm wondering if I might also have a bad BCM and battery.
Did it jump start OK? May be time for a new battery. Failed BCM's are a little more unusual.
 

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The only reason I had the Acadia battery changed is because it started showing a weak cell after 9 years of periodic testing. A battery test along with preventive maintenance will help with the decision, instead of just throwing your $$ away on something which isn't really necessary to do. Some people call it conservation of natural resources and waste reduction. ;)
I remember the battery in our 1989 Regal lasted 11 years. Died in summer heat, not negative temps in winter.

Of course back then cars had less gizmos draining a battery even when “off” than they do nowadays.
 

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Our 2017 Acadia Denali just had the same thing happen suddenly this morning. Truck has 42000 miles....warning on dash says no key present...changed battery in remote...no change. Motor spins over like crazy but will not fire. Remote will lock and unlock doors but curiously will not operate lift gate. Cannot operate liftgate with interior button either. I have AAA on the way to tow car to GMC dealer.Stay tuned...will advise.:((n)
 

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Malfunctioning FOB? Did you try your other FOB to rule that out?
 

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Tried both Fobs...no difference. Towed to dealer...they initially tried to connect via OBDII and truck's computer would not communicate. When all of the techs are back Monday they will try again. Service writer said he has not seen this happen. I'm betting bad fuel pump. Car is out of Bumper to Bumper warranty and the 5 year 60,000 doesn't cover electrical or fuel issues. I might be screwed. We have owned this vehicle for less than a year and I have to say I have had more trouble with it in the past few months than I have had from any GM vehicle EVER.:(:unsure:(n)
 

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The dealer gave us a 2021 Buick Envision for a loaner. I have to go to Key West tomorrow on a business trip...driving my trusty 2004 Mercedes S-500 from Central Florida. Leaving my wife to deal with this.She is very capable ...similar reports of this on the Traverse, Caddy XT5 and Buick Crossover Forums. Sounds like from what I have read that a software update seems to solve the problem. Stay tuned...will report back as to what we find.
 

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Have a good trip, wish her the best. My wife would wait... the vehicles are 100% me, which I'm fine with.
 

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So...I got a call this AM from Service Manager at my dealer..." We don't know what it is yet but we are still working on it" . So I told him I had picked up on some of the forums that the BCM or Body Control Module has shown to be the culprit on some of these vehicles across the platform...Cadillac XT5, Buick and the Acadia. He said " We checked for that and don't think that applies. Two hours later ...So...we checked the BCM and looks like that's the problem.($837 !!)...but I can't guarantee that something else might be at fault". I answered with the question..." Are we sure of what we are doing or are we just throwing parts at the problem?" ...Oh we think we have it but not sure"...I told them to go ahead and change the BCM ...but that's it. I called GM Customer Service and asked them for assistance. Something doesn't pass the smell test here🤔👍
 

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So...I got a call this AM from Service Manager at my dealer..." We don't know what it is yet but we are still working on it" . So I told him I had picked up on some of the forums that the BCM or Body Control Module has shown to be the culprit on some of these vehicles across the platform...Cadillac XT5, Buick and the Acadia. He said " We checked for that and don't think that applies. Two hours later ...So...we checked the BCM and looks like that's the problem.($837 !!)...but I can't guarantee that something else might be at fault". I answered with the question..." Are we sure of what we are doing or are we just throwing parts at the problem?" ...Oh we think we have it but not sure"...I told them to go ahead and change the BCM ...but that's it. I called GM Customer Service and asked them for assistance. Something doesn't pass the smell test here🤔👍
Since it is out of warranty.. . tel them you want the old BCM then since it should be yours.

Also, tell them you want a printed report of exactly what the problem they found is with the original BCM. .. ALL technical data.

You have a right to get that info if you are paying for it. This "man behind the curtain" thing never sits well with me when a servicing dealer says some electronic part is defective or failing.. . but gives some lame or little specifics.
 
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