[mboni]

I'm approaching 4 months and 4k miles with my car, and have accumulated a handful of small glitches. What troubles me is that they aren't exactly failures where something needs to be replaced, they are just occasional errors that go away.

On 3 occasions, I've had the 'Remote Not Detected' error, as if my remote battery had died. Opening the door triggers a series of honks, then the car won't start until I put the remote into the pocket in the center console. This has happened with both remotes now, and it's not the remote battery. Yes, I know there's a tech bulletin about this one, but I haven't gone in to get it fixed yet. But there are literally weeks or even months between these events, first two were in warm weather and most recent was in cold, so I don't know what might be triggering it.

On 1 occasion, I started the car and got an error message about side detection not working. For the next hour on the interstate my blindspot side mirror indicators didn't come on. However, next time I started the car, no problem.

On the 3rd time I got the 'Remote Not Detected' error, the touch buttons for the heated seats (both sides) also seemed to be malfunctioning. I would touch the screen, the word 'Auto' was gone, but it would never give me any red dots or start heating the seat. I did a reboot of the infotainment screen, and it didn't fix it. But the next time I drove, heated seats were available again.

This one is pretty regular: my iPhone will disconnect and then reconnect it's Bluetooth connection multiple times per drive, maybe every 5-10 minutes.

There's a couple other events that I can't recall right now, but they also fall into the category of a system fault that disables some non-essential feature, but then goes away next time I drive.

The reason I'm bringing this up is that I'm a software developer, and have to look for patterns like this all the time. Non-repeatable errors are the hardest thing in the world to diagnose. You start wondering if they are related to things you aren't thinking about, like time-of-day, background activity, communication from outside sources, memory or communication bus failures, etc.

Does anyone else see small random glitches like this, and can we find a pattern? The only common pattern I can think of is that none of these glitches have happened at home, they were all in parking lots away from my house.

 

[surgeonFWW]

Random(?) glitch, first noticed yesterday @ 8K miles: Charging.. Unplugged, not fully charged. Backed out of garage. Steering wheel heat button seemed inoperative, as light did not go on. Got “Charge port door open” message. Drove to first safe pull off point, during which I noticed the wheel heating, but still no light. Closed charge door. Tried steering wheel heating button again — all worked fine. I wonder if many electrical subsystems are inter-related (connected). Sometimes, what I see as a “glitch” is simply a system I do not understand.

 

[XJ12]

When switches aren't switches anymore. I've seen this in other applications where the switch is a communication command to a computer. Problems arise depending on computer scan rate and people's input. At my former work place, we changed out an old relay logic system for a computer based control system. We literary had to train the older operators how to push the buttons so that the control system wouldn't glitch. Ever press a mouse button that never got registered? I found the Bolt is slow in responding if I'm in a hurry. Press the 'start' button too fast and it doesn't register. Cycle shifter too fast and the commands are ignored. Yes, I did press the button and put it into reverse. But car says I did not. Slow down. Wonder how many "glitches" are between the seat and steering wheel.

 

[timeToy]

When switches aren't switches anymore. I've seen this in other applications where the switch is a communication command to a computer. Problems arise depending on computer scan rate and people's input. At my former work place, we changed out an old relay logic system for a computer based control system. We literary had to train the older operators how to push the buttons so that the control system wouldn't glitch. Ever press a mouse button that never got registered? I found the Bolt is slow in responding if I'm in a hurry. Press the 'start' button too fast and it doesn't register. Cycle shifter too fast and the commands are ignored. Yes, I did press the button and put it into reverse. But car says I did not. Slow down. Wonder how many "glitches" are between the seat and steering wheel.

Pressing buttons faster than the de-bounce and accidental press rejection logic, classic hardware UI issue in the world of digital controls! Not having theses logic create a lot more complicated and dangerous set of issues, specially in a potentially noisy environment with the wide temperature variation seen in a car.
Just be a little more "decisive" when pressing buttons, not harder or longer, just with more intent...

 

[Sean Nelson]

Does anyone else see small random glitches like this, and can we find a pattern?

After 2 months and 5,000km (3,000 miles) I've had the "pushed the button/shifted too fast and the car didn't respond" type of issue mentioned by some of the other posters, but none of the ones you've mentioned. The only really notable glitches I've had have been with Android Auto, and I don't blame the Bolt for that. The most annoying AA glitches have been:

- If you try to send a text message and don't pause long enough after the "What is the message" prompt, your sent text starts with "message" or "What is the message"

- AA occasionally hangs processing a voice command. I suspect this is due to some sort of communication issue, because if I'm patient enough I've heard it time out with "no internet connection is available".

I've also found the MyChevrolet app to be far too slow to be usable, and its text notifications have been completely unreliable.

My car was built in 2017-09 and it's running software version 14.1.0

 

[LaBrother]

one glitch that annoys me, is the Heat & A/C power is always on, even when i turn it off, the vents still eject hot air....am i just not understanding how it works? or is this a glitch?

Edit : some times it works(maybe 5% of the time?), when i turn off the heat & ac power, i can see the mileage go up and the vents wont eject hot air

 

[GJETSON]

one glitch that annoys me, is the Heat & A/C power is always on, even when i turn it off, the vents still eject hot air....am i just not understanding how it works? or is this a glitch?

Edit : some times it works(maybe 5% of the time?), when i turn off the heat & ac power, i can see the mileage go up and the vents wont eject hot air

Definitely, something is wrong.

 

[Sean Nelson]

one glitch that annoys me, is the Heat & A/C power is always on, even when i turn it off, the vents still eject hot air....am i just not understanding how it works? or is this a glitch?

The vents will continue to expel hot air until the heater core in the HVAC system cools off.

What are you doing to turn the heater off - pressing the "On" button so that the red dot goes out, or pressing the "Heater & AC" button, or...?

 

[LaBrother]

The vents will continue to expel hot air until the heater core in the HVAC system cools off.

What are you doing to turn the heater off - pressing the "On" button so that the red dot goes out, or pressing the "Heater & AC" button, or...?

yes, i know, it worked at first when i pushed the HEATER & ac button, after a minute or so cool air would come out. and i would see the mileage go up instantly when i pushed that button. But now, even when i push the heater & ac power button, the mileage stays low, and it keeps expeling hot air....

Also another glitch is the favorites tab on the steering wheel doesn't scroll though my favorites anymore, it just retartts the same song.

These features used to work! but now they don't! If i bring it to dealer , they will blame my amplifer + sub installation :nerd: ?

 

[XJ12]

yes, i know, it worked at first when i pushed the HEATER & ac button, after a minute or so cool air would come out. and i would see the mileage go up instantly when i pushed that button. But now, even when i push the heater & ac power button, the mileage stays low, and it keeps expeling hot air....

Also another glitch is the favorites tab on the steering wheel doesn't scroll though my favorites anymore, it just retartts the same song.

These features used to work! but now they don't! If i bring it to dealer , they will blame my amplifer + sub installation :nerd: ?

Wonder if you created a sneak circuit that's pulling down the heater relay.

 

[borkbork]

i've had the side detection error once, and it cleared itself like yours did.

i often have the bluetooth disconnection issue as well.

 

[LaBrother]

Wonder if you created a sneak circuit that's pulling down the heater relay.

so if i disconnect the amp from the battery @ the battery, this would resolve any sneaker circuts?

 

[LaBrother]

I've also had my seat heater stuck on max(the softkey would push but the three leds stayed on). this only happened once.

(edit: for 30 miles it was stuck on)

 

[XJ12]

so if i disconnect the amp from the battery @ the battery, this would resolve any sneaker circuts?

that would be worth a try before going to the dealer I would think. ignoring a software issue, then assume it's hardware. first question in troubleshooting is typically, what was the last thing that got changed? then go from there. wonder where the heater relay is, if easily pulled for diagnostics? maybe not worth continuing if you verify amp is not the issue. seems odd that it would be an issue, but never know with these things. all we know is chevy put in some diodes that you managed to bypass. also verify your amp wiring that it hasn't chafed through another wire.

 

[Sean Nelson]

These features used to work! but now they don't! If i bring it to dealer , they will blame my amplifer + sub installation :nerd: ?

Well one thing's for sure - if they spend several hours of diagnostic time and discover that something about the installation is causing the problem, they're going to bill you for that time.

 

[dooboze]

I have the same problem as LaBrother, where my heater stays on at the same setting as it was after I press the Heater & AC button on the screen to turn the heating system off. I don't have any amp or sub installed, no mods to car, so I don't think that's LaBrother's issue. That said, turning off the fan turns off the heating.

I also notice that my front seat heaters don't turn on until a person sits in the seat (so no pre-heating the seats) and when a person is sitting in it, they don't turn off, they seem to stay on at a minimum level. Also none of the three heating levels seem to make a difference in how fast the seats heat up, or how hot they are.

LaBrother, did you ever figure out your issue? Is it back now that it's wintery weather again?

 

[rkleefam]

Intermittent electrical problems are also happening to my 2017 premiere with 10,000 mi. I have taken it to my dealer but they are unable to diagnose any of the problems. One I managed to fix my-self for a while. My phone app would not start the car if I was indoors. after calling OnStar with no results I called GM help line; they told me to try removing the app and re-install it. It worked fine then for a couple of weeks but seems to be acting up intermittently like the other problems. At night while entering my garage I can't activate the front camera. The screen tells me that I cannot use it while driving, during the day I have no problem. Every once in a while the car will not start, says the key fob is not present although I can lock and unlock the door with it. Some times when I exit the car with the key fob the horn will beep twice, other times it will not. Some times I can start the car with the key fob and other times I can stand next to it and it still will not start; yes I lock it first with the fob. All acts like one of the pins in one of the wiring connections is loosing continuity from time to time. Maybe it is programed faults to keep me in contact with the dealer so he don't get lonesome.LOL

 

[Dimitrij]

I am at nearly 18 months and 31K mi (50M meters), and I no longer see the little tantrums that kEVin throws as "glitches" .. you see, a glitch (at least the prototype word in Yiddish and German) means a one-off, accidental and unexpected slip, like you'd stumble on an even surface.

Whereas kEVin's little e-crazies are, so to speak, intrinsic to his personality of a prototype platform car that was never intended to be a commercial product.

 

[Sean Nelson]

Intermittent electrical problems are also happening to my 2017 premiere with 10,000 mi.

It's always worth checking the health of the 12V battery - it it's in poor condition then it can cause all kinds of weird issues with the car's systems.

 

[rkleefam]

It's always worth checking the health of the 12V battery - it it's in poor condition then it can cause all kinds of weird issues with the car's systems.

Think's, I will do a load test on it.