Terrible Feature - Truck Shuts Off On It's Own?!?!

Enoch · November 8, 2019

I too think it’s a stupid feature. I have to sit and idle for extended periods of time and do not want the truck to shut off. I plan on asking my dealer if there is a way to disable this feature.

E

Tbenji · November 26, 2019

On 1/22/2019 at 4:44 PM, amxguy1970 said:

^This

Have you tried making sure the gas cap is all the way tight? That usually does the trick...

Tyler

Yep check the gas cap that’ll solve the problem. Lol

I have the same issue. But I just can’t find the gas cap to tighten it. Lol

I need the vehicle to stay unning maybe not as long as the OP but it seems like mine shuts off after about ten minutes every time. I’ve never tried leaving it running with remote in vehicle as I don’t sleep in mine.

Edited November 26, 2019 by Tbenji

swilson · January 21, 2020

Rick -- I just discovered my new 2020 HD 3500 has this "feature". Have you found out how to disable it?

Dunn · January 22, 2020

On 1/22/2019 at 1:44 PM, amxguy1970 said:

^This

Have you tried making sure the gas cap is all the way tight? That usually does the trick...

Tyler

whose 2019 came with gas cap?.....mine certainly didnt

redwngr · January 22, 2020

2020 owners manual says:

If the vehicle is left parked and running with the RKE transmitter outside the vehicle, it will continue to run for up to half an hour.

If the vehicle is left parked and running with the RKE transmitter inside the vehicle, it will continue to run for up to an hour.

The vehicle could turn off sooner if it is parked on a hill, due to lack of available fuel.

The timer will reset if the vehicle is taken out of P (Park) while it is running.

What it doesn't say is what happens if it's in Neutral with the parking brake on...???

Does it mean that the timer doesn't run if it's not in park?

Anybody that needs/want it to idle longer tried that?

Time2gofishing1980 · January 22, 2020

Tow/Haul or Terrain mode on the traction select system disable auto start/stop

*Disregard, OPs concern was not auto start/stop*

Edited January 22, 2020 by Time2gofishing1980

Z45 · January 22, 2020

fyi..................

State Action

Over the past two decades, state legislatures have enacted various forms of legislation to minimize vehicle idling. Nine states—Colorado, Connecticut, Delaware, Maryland, Massachusetts, New Hampshire, New Jersey, Texas and Vermont—and Washington, D.C., limit idling to between three and five minutes for most vehicles. Another 14 states limit idling for certain vehicles, such as school buses, state-owned vehicles or vehicles over 10,001 pounds.

Further, 18 states have grants, loans, tax credits or pilot programs to provide incentivizes for adopting idle reduction technologies. Those states are Alabama, Arizona, Arkansas, California, Colorado, Georgia, Illinois, Indiana, Maryland, Massachusetts, Minnesota, New York, North Carolina, Ohio, Oregon, Pennsylvania, Tennessee and Vermont. Colorado, Maryland, Massachusetts and Vermont are currently the only four states that both offer incentives for IRT adoption and limit idling for most vehicles. Colorado goes one step further with its idle reduction program—a collaboration between federal, state and local governments to improve air quality by minimizing idling.

ILSilverado · January 22, 2020

On 1/22/2019 at 2:40 PM, rikhek said:

Truck is a 2019 Sierra AT4 and I'm really surprised to find it shuts itself off on it's own after idling for somewhere around 10 - 15 minutes. I'll admit I have not had time to read the manual yet but this was not an "option or setting" in any of the settings menus.

Really sucks for me as I'll leave the truck idling for several hours at a time if headlights are needed to provide jobsite lighting. I'll be elbow deep in "work" and the damn thing just goes off. I need to go over to truck and restart every 10 - 15 minutes which is a pain in the ass. I won't even get into how bad it is when I have to sleep in the truck while on a remote jobsite. It gets cold very quickly when it shuts off....

Rick

Our Corvettes will do this also it’s a safety feature also. Last year an elderly couple pulled there Cadillac into there attached garage and because it was push button start and they were hard of hearing they got out of the car and left it running. Next day both were found dead.

Edited January 22, 2020 by ILSilverado

S. DOGMAN · February 5, 2020

Well. I'm here because I too need a way to disable this "feature". I traded in my 2018 Denali for the 2020 AT4 2500 Duramax. I use these trucks to haul trained military working dogs to their final locations. The trailers we transport these dogs in rely on vehicles running to power airflow controls (heat/bringing in fresh air), lighting and water pump. Today, after thirty minutes of being in a meeting I walk out and my truck is off -- and the dogs have no heat (it's 22 degrees out). I instantly freak out thinking I made the mistake of shutting the truck off. (Why would I ever assume the truck turns off on it's own?). So I restart the truck, we begin the process of unloading dogs, as we are the truck shuts off again. Our trucks (companies) sometimes run for hours - this is just nature of the business. The fact we can not disable this feature is an issue. I have already spoken with the dealership to return the vehicle as I have less than 100 miles on it. The truck does not work for me because of this one simple "feature". Yes, I'm sure there are work arounds as some of you posted in here -- "restart the truck when it goes off". This does not scale. I'm in disbelief that they did not provide an option to turn this off..... so there is no fix ... this is confirmed... as they are taking my truck back because of it.

redwngr · February 6, 2020

3 hours ago, S. DOGMAN said:

Well. I'm here because I too need a way to disable this "feature". I traded in my 2018 Denali for the 2020 AT4 2500 Duramax. I use these trucks to haul trained military working dogs to their final locations. The trailers we transport these dogs in rely on vehicles running to power airflow controls (heat/bringing in fresh air), lighting and water pump. Today, after thirty minutes of being in a meeting I walk out and my truck is off -- and the dogs have no heat (it's 22 degrees out). I instantly freak out thinking I made the mistake of shutting the truck off. (Why would I ever assume the truck turns off on it's own?). So I restart the truck, we begin the process of unloading dogs, as we are the truck shuts off again. Our trucks (companies) sometimes run for hours - this is just nature of the business. The fact we can not disable this feature is an issue. I have already spoken with the dealership to return the vehicle as I have less than 100 miles on it. The truck does not work for me because of this one simple "feature". Yes, I'm sure there are work arounds as some of you posted in here -- "restart the truck when it goes off". This does not scale. I'm in disbelief that they did not provide an option to turn this off..... so there is no fix ... this is confirmed... as they are taking my truck back because of it.

Did you lock it and restart with the remote?

or use and extra key in ignition so the doors could be locked?

or leave it unlocked with key in it?

I don't know how long they with a key in, but it sounds like maybe you need one with the PTO option. (doesn't look like it can be added to upper level trims)

There is info about PTO and it's modes modes in the Duramax supplement. Quick look suggests it can be set up to run for something like 64 hours (DPF probably wouldn't permit that long .....)

Does the truck have the High Idle (Fast Idle) option (UF3)?

Anybody know if they will idle longer using the high idle option?

Edited February 6, 2020 by redwngr

Cpl_Punishment · February 6, 2020

1 hour ago, S. DOGMAN said:

Well. I'm here because I too need a way to disable this "feature". I traded in my 2018 Denali for the 2020 AT4 2500 Duramax. I use these trucks to haul trained military working dogs to their final locations. The trailers we transport these dogs in rely on vehicles running to power airflow controls (heat/bringing in fresh air), lighting and water pump. Today, after thirty minutes of being in a meeting I walk out and my truck is off -- and the dogs have no heat (it's 22 degrees out). I instantly freak out thinking I made the mistake of shutting the truck off. (Why would I ever assume the truck turns off on it's own?). So I restart the truck, we begin the process of unloading dogs, as we are the truck shuts off again. Our trucks (companies) sometimes run for hours - this is just nature of the business. The fact we can not disable this feature is an issue. I have already spoken with the dealership to return the vehicle as I have less than 100 miles on it. The truck does not work for me because of this one simple "feature". Yes, I'm sure there are work arounds as some of you posted in here -- "restart the truck when it goes off". This does not scale. I'm in disbelief that they did not provide an option to turn this off..... so there is no fix ... this is confirmed... as they are taking my truck back because of it.

I'm shocked that they included this "feature" on the heavy duty diesels. Aside from the fact that a diesel burns essentially no fuel at idle, what are the guys up north going to do all winter?

Daveg · February 7, 2020

Totally ridiculous. I wish I never would’ve bought the truck. if I leave a vehicle running I expected to be running when I come back to it. it absolutely makes no sense to have 110 outlet in the truck as well if power shuts off after two hours. There is no logic for this feature in a work vehicle. Trucks are not grocery getter’s.

S. DOGMAN · March 10, 2020

Same issue. 2020 Sierra 2500 Duramax. Issue resolved. They flashed it.

Jav_eee · March 27, 2020

On ‎3‎/‎9‎/‎2020 at 10:25 PM, S. DOGMAN said:

Same issue. 2020 Sierra 2500 Duramax. Issue resolved. They flashed it.

Can you show us the service write-up to see exactly what they did?

Jav_eee · March 27, 2020

On ‎2‎/‎5‎/‎2020 at 9:46 PM, Cpl_Punishment said:

I'm shocked that they included this "feature" on the heavy duty diesels. Aside from the fact that a diesel burns essentially no fuel at idle, what are the guys up north going to do all winter?

Modern day diesels are NOT the diesels of yesterday. No longer can you idle them all day without ill effects. These new ones get loaded with soot which causes an avalanche of problems.

BTW, 2017 and newer fords (at least the diesel model) do this too.