mobile-menu-icon
GM Authority

Shut off Extended Parking Timeout 2024 Sierra

Viewing 3 reply threads
  • Author
    Posts
    • #825166
      chriscsg
      Participant

      I have the above vehicle with the 5.3L engine. If I want to leave my truck running in Park, it shuts off automatically after about 20 minutes. The dealer says I have to pay about $300 for a software change to defeat this timeout. This seems insane to me. Does anyone else know of a different way? I tried the method of holding in the ignition button for an extended period but that didn’t work.

    • #825170
      rweintra
      Participant

      My brand new Acadia does the same thing. Was going to ask how to stop it from turning off by itself.

    • #825401
      Parts Man1
      Participant
      • #825495
        chriscsg
        Participant

        Thanks Parts Man but the extended park is different than the auto shut down. Auto shut down works when the transmission is in drive. I want my truck to stay at idle while in park.

    • #825912
      Parts Man1
      Participant

      Sorry, I thought it said it worked for both.

      Curious, why do you want your truck to idle so long?

      Try this..

      https://www.youtube.com/watch?v=I1bPvSgXWJM

      There is also a TSB to remove this function. TSB#21-NA-228. Your dealer can do this and I’m sure there will be a charge

      • This reply was modified 6 months, 1 week ago by Parts Man1.
      • This reply was modified 6 months, 1 week ago by Parts Man1.
Viewing 3 reply threads
  • You must be logged in to reply to this topic.

Subscribe to GM Authority

For around-the-clock GM news coverage

We'll send you one email per day with the latest GM news. It's totally free.