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Discussion Starter #1
I own a 2019 Terrain with the diesel engine. When the car is stationary (and in park) with the engine running, after an hour or so
the engine automatically turns off. Since I want it running for a purpose until I turn it off, the engine stopping by itself is not optimal.

Is there a computer setting or modification that can be done to disable whatever mode is shutting the engine off?

Thanks,

Dave
 

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Curious, why would you want to have the engine run that long ?
 

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Is there a computer setting or modification that can be done to disable whatever mode is shutting the engine off
My 2018 Encore will shut off the engine after 2 hours of running at idle.
The owners manual verifies this.
I looked into changing the setting to shut it off sooner after my wife left it running in a parking lot when new.
Easy enough to do with the no key, push button ignition.

After talking to the dealer and several GM Techs they all gave me the same answer.
It cannot be adjusted.
Your 2019 Terrain is probably the same.
 

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It's probably programmed to shut off after a certain period of time for safety reasons. If the vehicle is parked in a garage that is attached to or part of your home, you would have a risk of carbon monoxide poisoning. Since carbon monoxide is an odorless gas, you'd have no way of knowing that your home was filling up with it unless you have a functioning carbon monoxide detector.

Yes, there are variables that could mitigate the potential hazard such as you're parking outside or in a detached garage. But GM has no way of knowing your particular situation, and could be programming the vehicle for worse case scenario (id. on the side of caution).
 
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As a follow-up to my previous post, I was correct in my assumption about it being a programmed feature. I found an article online that describes this feature, and why it was implemented. You can read the article at http://gmauthority.com/blog/2019/06/gm-extended-parking-feature-shuts-off-engine-feature-spotlight/.

I also downloaded the 2019 Terrain Owner's Manual to see if this was mentioned. Though I could have missed it, there doesn't seem to be any mention of the engine shutting off after a certain period of time. In my opion, it was a poor choice by GM to not point out this feature.
 

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I also downloaded the 2019 Terrain Owner's Manual to see if this was mentioned. Though I could have missed it, there doesn't seem to be any mention of the engine shutting off after a certain period of time. In my opion, it was a poor choice by GM to not point out this feature.
It doesn't exactly jump out at you, but it's on page 205 under Extended Parking. The Owner's Manual states the following:

"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."
 

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It doesn't exactly jump out at you, but it's on page 205 under Extended Parking. The Owner's Manual states the following:

"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."
Aha! I stand corrected, and I take back my comment about it being a bad choice by GM to not point this feature.

Out of curiosity I went looking for a similar section in the 2018 Owner's Manual. Lo and behold it's there as well, but with one hour with the RKE outside the vehicle and two hours with the RKE inside the vehicle. So in 2019 they cut those times in half. Anyway, either I missed that part when I read the manual (yes, I really did read it) after I purchased my 2018 Terrain, or I simply forgot about this feature. More likely the latter - it sucks getting old.

Back to the OP's query about a setting to alter this behavior, I seriously doubt that such a setting exists. There's nothing called out in the manual, and automatically shutting off the engine does serve a legitimate purpose.
 

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Help me out here - is this a plan to increase Global Warming ?

There are reasonable reasons to do that...like living in your car on a hot summer day or stuck in snow in winter and waiting for it to melt for a few days so you can get yourself unstuck or hoping people will find you.
 

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Discussion Starter #10
Help me out here - is this a plan to increase Global Warming ?
RTT333, some electronics gear. The car is kept in a conditioned garage. Additionally, will carry a
max of two Detection dog and/or SAR dog(s).

It appears that GM slipped the new technology under the radar and did not allow for manual override
of their "safety feature". I will be looking for another diesel vehicle. With the Terrain diesel I am getting
48mpg. The emissions aren't bad, but there are times that the vehicle needs to stay idle and on for
some extended periods.
 
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