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Keep ACC turned on

daw1422
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daw1422 New Member

daw1422

Posted
Posted

I have a new truck. Trying to use the truck wifi for a meeting without the truck running and the ACC turns off every ten minutes and I get kicked out of the meeting. 
 

How can I keep iThesaurus ACC Turned ON?

GN2018 Enthusiast

GN2018

Posted
Posted

Not sure if this is exactly the issue I had, but I wanted the radio to stay on longer, without cutting off every 10 min.  The answer given was to hold the start button (without foot on brake) until the green light comes on.  Seems to work.

1454 Enthusiast

1454

Posted
Posted
5 hours ago, daw1422 said:

I have a new truck. Trying to use the truck wifi for a meeting without the truck running and the ACC turns off every ten minutes and I get kicked out of the meeting. 
 

How can I keep iThesaurus ACC Turned ON?

You can't. GM and their infinite wisdom thought it best to remove that feature. It's annoying AF. Same with idling the truck and park, it won't stay on for more than 15 minutes, I think. 

  • 2 weeks later...
judycarter New Member

judycarter

Posted
Posted
On 10/8/2021 at 3:59 AM, 1454 said:

You can't. GM and their infinite wisdom thought it best to remove that feature. It's annoying AF. Same with idling the truck and park, it won't stay on for more than 15 minutes, I think. slope game

I had the same thought.

Kyle Ross Enthusiast

Kyle Ross

Posted
Posted

I would check with the dealer, on some vehicles you can have customers preferences change in their oem scanner. just a thought  

  • 1 year later...
redwngr Senior Enthusiast

redwngr

Posted
Posted

There are multiple modes available. 

Description given seems to indicate OP has been using the ACC mode, and that it is functioning as programmed.  

 

If the button is not held long enough, the truck will go to ACC mode rather than service mode.

ACC mode is supposed to shut off after about 10 minutes.

 

 

Perhaps I'm misinterpreting OP's description of problem? 

 

If not give service mode a try and let us know how you make out.

 

Anyway, from Operators manual:

 

ACC/ACCESSORY (Amber Indicator Light) :
This mode allows some electrical accessories to be used when the engine is off.
With the vehicle off, pressing the ENGINE START/STOP button one time without the brake pedal applied will place the vehicle in ACC/ACCESSORY.
The vehicle will switch from ACC/ACCESSORY to off after five minutes to prevent battery rundown.

Service mode is achieved by holding the start button, with foot off the brake, until the accessories fire up (about 10 sec).

 

Retained Accessory Power (RAP)
When the ignition is turned from on to off, the following features (if equipped) will continue to function for up to 10 minutes, or until the driver door is opened.

These features will also work when the ignition is in RUN or ACC/ACCESSORY:
. Infotainment System
. Power Windows (during RAP this functionality will be lost when any door is opened)
. Sunroof (during RAP this functionality will be lost when any door is opened)
. Auxiliary Power Outlet
. Audio System
. OnStar System 

 

 

Service Mode
This power mode is available for service and diagnostics, and to verify the proper operation of the malfunction indicator lamp as may be required for emission inspection purposes.

 

With the vehicle off, and the brake pedal not applied, pressing and holding the ENGINE START/STOP button for
more than five seconds will place the vehicle in Service Mode.

 

The instruments and audio systems will operate as they do when the vehicle is on, but the vehicle will not be able to be driven. The engine will not start in Service Mode.

 

Press the ENGINE START/STOP button again to turn the vehicle off.

 

RedLT Enthusiast

RedLT

Posted
Posted

Came across this article, more specific to 2022.5+

https://gmauthority-com.cdn.ampproject.org/v/s/gmauthority.com/blog/2021/09/heres-how-to-stop-a-gm-vehicle-from-shutting-off-engine-when-parked/amp/?amp_gsa=1&amp_js_v=a9&usqp=mq331AQKKAFQArABIIACAw%3D%3D#amp_tf=From %1%24s&aoh=16466861833715&referrer=https%3A%2F%2Fwww.google.com&ampshare=https%3A%2F%2Fgmauthority.com%2Fblog%2F2021%2F09%2Fheres-how-to-stop-a-gm-vehicle-from-shutting-off-engine-when-parked%2F

 

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