Engine shut down timer

gemarsh

Nebraska, where the Dusty Denali Diesel's roam.
Staff member
235
83
Nebraska
Year
2021
Have any of you LM2 owners left your truck run long enough idling, to have it it shut down? I have heard that the new trucks have some timer that shuts down engine. Like 20 minutes or so.

I have not. I have just read the 3.0 diesel supplement owners manual. There is a 1 line sentence stating the LM2 does not have this timer. I swear I have left it idling for over an hour. Have not timed it, but I will.

If this is true, it is great news for me.
 

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OH Chevy Diesel

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6
It has about a 20 min timer on remote starts. That’s longer than the 10 mins on the Colorado I had. Don’t know about regular starts.
 

gemarsh

Nebraska, where the Dusty Denali Diesel's roam.
Staff member
235
83
Nebraska
Year
2021
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It has about a 20 min timer on remote starts. That’s longer than the 10 mins on the Colorado I had. Don’t know about regular starts.
I keep the remote in the center console. Truck has only been locked when we went on vacation this spring. Other than that, the fob has been with the truck. With that typed, I haven't used the remote start. Correction, I did play with the onstart app, just to see if it would work.

I was happy to see the LM2 didn't have the normal start extended park timer on the 21's. Just like last Thursday, started truck around 7am and it ran till 5pm. I have to keep the dog cool! And me when I get back in.

I downloaded the '20s pdf version of the supplement manual, and in the same spot as the '21s version, it is void of that line...
 

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OH Chevy Diesel

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Glad the 2020s don’t have it but it is only an update away. Safety nazis trying to protect us from ourselves. Like the “press the brake pedal” to disengage the parking brake. Didn’t need that with the manual parking brake, why now? And the @$#% auto stop that can’t be fully disabled (although it is one of the functions that GM bypassed due to the chip shortage...go figure). Ok, off my rant.
 

BoostN

Administrator
Staff member
275
42
TN
Year
2021
Glad the 2020s don’t have it but it is only an update away. Safety nazis trying to protect us from ourselves. Like the “press the brake pedal” to disengage the parking brake. Didn’t need that with the manual parking brake, why now? And the @$#% auto stop that can’t be fully disabled (although it is one of the functions that GM bypassed due to the chip shortage...go figure). Ok, off my rant.

Yea I noticed some Tahoe/Yukon's didn't get Auto Start due to the chip shortage, to bad mine wasn't apart of that! I find myself pushing that disable button a lot. I hate the autostart/stop "feature".
 
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