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Auto Stop

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    • #554286
      donkey99
      Participant

      Have a ‘19 Sierra Denali. Have noticed that sometimes the auto stop (engine kill at stoplight) works, and sometimes it doesn’t? Wondering if it has something to do with the hot weather and A/C being on?
      Anybody know?

    • #556108
      Z15
      Participant

      Owners manual, page 224 up, lots of reasons for it to not function and climate control settings the require the engine running (AC Compressor) disable it. Can’t have AC working if engine is off.

      Auto Stops may not occur and/or
      Auto Starts may occur because:
      . The climate control settings
      require the engine to be running
      to cool or heat the vehicle
      interior.
      . The vehicle battery charge
      is low.
      . The vehicle battery has recently
      been disconnected.
      . Minimum vehicle speed has not
      been reached since the last
      Auto Stop.
      . The accelerator pedal is
      pressed.
      . The engine or transmission is
      not at the required operating
      temperature.
      . The outside temperature is not
      in the required operating range.
      . The vehicle is in any gear other
      than D (Drive).
      . Tow/Haul Mode or other driver
      modes have been selected.
      . The vehicle is on a steep hill or
      grade.
      . The driver door has been
      opened or the driver seat belt
      has been unbuckled.
      . The hood has been opened.
      . The Auto Stop has reached the
      maximum allowed time.

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