Jump to content

Recommended Posts

Posted

I lost this feature when it had around 800kms. I just did a very long 1,700 km drive to Hermosillo from Tijuana.

When I arrived in Hermosillo after an 870km drive (570 miles), the auto stop feature never kicked in. I arrived at night so the A/C was off.

 

Just got back in Tijuana and my truck surprised me for the first time with a green circled A and I didn't have A/C on at that time either because it was 7 a.m.

The past 5,000 kms were all city miles, few highways, I guess it just had to catch up with highway miles to make it work?

Posted (edited)

Auto stop didn't work with the A/C in other settings than Max?

 

-Grover67

Edited by Grover67
Posted

When I first got it, I noticed it was less likely to kick in whenever the A/C was on, but I never used the Max in my A/C. I had to go out and look for it, didn't even know I had that, but I know I never used it.

I never had the need to defog my window so it's always off. It was only just now when I noticed the auto-start kicking in.

I always make sure everything is off so I know I never accidentally turned it on or anything like that. The auto-stop never kicked in over the past two years, I even thought it probably didn't come with that feature after the update.

  • Like 1
Posted

Don't know if any of these apply, but lots of things can prevent auto stop/start.

 

 

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.

Posted

I can assure you none of that applies. It never kicked in since I had it when it was pretty new until just now. This is why it surprised me. I've taken long drives. The climate in Dana Point is always nice and cool, not hot or cold. I don't disconnect batteries. I don't keep my foot on the gas. I always put it in "D" when I am driving. No steep hills during my drives to L.A.

 

13 hours ago, redwngr said:

Don't know if any of these apply, but lots of things can prevent auto stop/start..

 

Posted

I'm going to guess based on your location that your A/C was cranking in the heat and until you reached the thermostat auto level (or if it was just set on some fan setting) that your engine was needed to keep the air coming and auto-stop wouldn't kick in.

Posted
7 hours ago, Belo said:

I'm going to guess based on your location that your A/C was cranking in the heat and until you reached the thermostat auto level (or if it was just set on some fan setting) that your engine was needed to keep the air coming and auto-stop wouldn't kick in.


It's cold here in Dana Point, I don't even think it ever went above 73 in the past three weeks even in the daytime. Initially, it didn't kick in whenever I had the A/C on, but then it never kicked in, with or without the A/C running, summer, winter, cold start, hot start, 50-mile drives to Los Angeles, it never kicked in. Then it suddenly kicked in after a long 500-mile drive back to Tijuana.

And I never use the thermostat at the auto-level, I always have it either LO or off, usually with A/C off. I had it off driving towards Hermosillo because it wasn't that warm at nighttime and I was trying to maximize my gas mileage, did not want to stop anywhere between Tijuana and Hermosillo. Oddly, it never kicked in after stopping in Hermosillo.

Posted

I have the same thing going on.

since about a month after I purchased my truck in Aug 2020, Auto-stop has never engaged again. It has been 10 months since an auto-stop incident.

 

I hope GM didn't catch on to something and start pushing out updates to make it work again.

Posted
1 hour ago, Cjanik said:

I hope GM didn't catch on to something and start pushing out updates to make it work again.

 

I think it was just the really long drive that did it because I usually keep it parked for weeks and weeks at times. Sometimes I don't drive it for a month. But it doesn't seem to be having issues with the battery, not that I can see. It didn't kick in after the long 500-mile drive to Hermosillo.. only on the way back to Tijuana.. and it didn't even kick in until about an hour in Tijuana (despite the stop and go traffic). It doesn't bother me but caught me off guard. I totally forgot about this.

Posted
11 hours ago, Cjanik said:

I have the same thing going on.

since about a month after I purchased my truck in Aug 2020, Auto-stop has never engaged again. It has been 10 months since an auto-stop incident.

 

I hope GM didn't catch on to something and start pushing out updates to make it work again.

 

I did get an update pushed the other week...

 

PS running on LO is going to crank your AC, so again I'm guessing your AC was needing the engine on. idk...

Posted
4 minutes ago, Belo said:

I did get an update pushed the other week...

PS running on LO is going to crank your AC, so again I'm guessing your AC was needing the engine on. idk...

 

Not when it's 68 here in Dana Point, it hasn't gone above 75 the past month. For the most part, I keep the A/C off because I don't even need it.

Posted

Okay, just did a 30-mile drive with the A/C off the whole time (no fan at all) since it was cold here in the morning. It never kicked in after I got off the freeway and came up to a stop light, hit the brakes then pressed it harder. Nope. I never saw the green circle with "A" in it again. I don't think it's coming back.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Latest Articles

  • Posts

    • Not exactly what I was hoping for, but I do like it. I wonder if they'll bring back Smokey Quartz Metallic? 🤔 https://gmauthority.com/blog/2026/06/here-is-the-all-new-2027-gmc-sierra-1500/
    • Whoever greenlighted the work truck matte black front bumpers on every trim but the AT4X should be fired!  I was hoping that was an AI mistake, but just realized they were on every model of the 2027 Silverado too.     Some parts of the interior do look premium, but the Denali Ultimate dashboard looks like an afterthought.  At least they appear to have lost the microfiber the high end Silverado models showed, but the '27 High Country dash looks better than the Denali.  
    • New member here. I am researching a read-first event-recorder concept for late-model GM V8 trucks. This is not a sales post. There is no product link, price, preorder, or mailing list. I am trying to determine whether the underlying problem is real before building anything.   Has your truck ever had a brief problem such as: - rough running or a momentary misfire - an oil-pressure warning or unusual pressure event - reduced power or a brief stall - a U-code or lost-communication problem - a symptom that disappeared before the dealer or independent shop could reproduce it   If so, I would appreciate the following details: - year, model, engine, and mileage - what happened and under what conditions - whether a DTC and useful freeze-frame data were stored - whether the shop was able to reproduce it - what the eventual confirmed repair was, if known - what additional information would have helped the diagnosis   The concept being evaluated is a removable leave-in recorder that continuously retains a rolling window from before and after an event. It would not tune, reflash, clear codes, or change the vehicle calibration.   I am also not claiming that it could predict lifter failure or see every internal ECM variable.   The real question is whether continuous event history would add enough useful evidence beyond freeze frame, GDS2, and existing scan tools — or whether it would simply be another unnecessary gadget.   For owners and technicians, which problem would make something like this genuinely useful: 1. intermittent misfire or AFM/DFM-related behavior 2. oil-pressure events 3. lost communication or electrical faults 4. none of the above Please be blunt. Negative feedback is just as useful as positive feedback.
    • No tears over the SLE and SLT trim levels disappearing but I kind of loathe the "Elevation" name. It's a truck--skip the elegance.   The slab-dashboard design is decidedly different. Almost has a Hummer flavor to it. "Professional Grade" seems to be leaning very white-collar, tech-driven these days moreso than blue-collar, functional design.   The Silverado would be my choice between the two new trucks. Pleased with the engine lineup in both. The GMC is a little "too much" for a truck, IMO, and the Denali borders on ridiculous - but I do know there are buyers for luxury trucks out there. It's just not my speed.
    • Your safety is of utmost importance, @joshua1221, and we understand the importance of having all your lights working in your truck. If you have not already, we highly encourage you to bring your concerns to the attention of your local GM dealer. They are in the best position to diagnose your concerns as well as confirm the compatibility of the mirrors with your truck. Additionally, we would like the opportunity to explore any way we may be of assistance. When you have a moment, please visit: https://s.gm.com/support-request and fill out the support request form with all pertinent details. This form helps our team gather the right information and ensures your request is routed appropriately.
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...