Check Engine Light at 4000kms! WTF?!?
- Thread starter 1ADAM12
- Start date
- Mar 4, 2020
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Hit the OnStar button and ask for the codes.
Can the APP be used for OnStar?
Can the APP be used for OnStar?
- Sep 30, 2021
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Same happened to me at around the same mileage .... my own fault ... was one night that I did about 4 or 5 shut downs and start ups in short succession ... CEL came on while I was driving home and next day it cleared itself ...
Brought it to the dealer and the code had to do with a low voltage issue ... which made perfect sense
Not sure if your issue is similar but thats my story ...
Bring it in as it is still under warranty ... Good luck !
- Thread starter
- #4
Thank you for this! Much appreciated. I am going to disconnect the battery for the night. Hopefully something happens. The ONLY changed part is the Attack Blue air filter that I washed 2 months ago.Same happened to me at around the same mileage .... my own fault ... was one night that I did about 4 or 5 shut downs and start ups in short succession ... CEL came on while I was driving home and next day it cleared itself ...
Brought it to the dealer and the code had to do with a low voltage issue ... which made perfect sense
Not sure if your issue is similar but thats my story ...
Bring it in as it is still under warranty ... Good luck !
- Thread starter
- #5
Thank you! Will check now!
I think onstar is only good for 2 month, and I’m 2.5 months in. Will they still run a diagnostic for me?
- Sep 30, 2021
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Yea doing a disconnect will for sure clear the CEL ... but if there is a hard fault somewhere it will just rear its ugly head again ... hopefully it wont ... but I would bring it in nonetheless ...
- Mar 4, 2020
- 9,930
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I believe 2024's were forced to a 2 year OnStar.
- Aug 31, 2023
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Three years actually. They extended mine starting about a month ago simply because the “ My Chevrolet “ app wasn’t working on Android devices. They must have contacted me a dozen times over the last six months or so regarding it . With me only contacting them once regarding it back in June . Very surprised actually with how much they followed up on it even assigning a specific agent to the case which almost became annoying with the frequency of contact. A couple of times just to tell me that they were still working on it.
- Aug 31, 2023
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See post #8 .
- Aug 31, 2023
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I had been plugging in my battery tender every time I parked for the last two months and noticed just about every time, especially after multiple stop starts while hitting stores shopping for an example, that when connecting the charger it was on the first step of charge according to the LED’s . I think there are three steps before it indicates fully charged. Not sure if it’s more that the vehicle is quite current demanding or if it’s battery capacity but it does seem to suck the juice.Same happened to me at around the same mileage .... my own fault ... was one night that I did about 4 or 5 shut downs and start ups in short succession ... CEL came on while I was driving home and next day it cleared itself ...
Brought it to the dealer and the code had to do with a low voltage issue ... which made perfect sense
Not sure if your issue is similar but thats my story ...
Bring it in as it is still under warranty ... Good luck !
- Feb 14, 2023
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Good thing I have a code reader handy for future use? 
Last edited:
- Sep 10, 2020
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Since the late summer of 2022 all GM products now have forced 3 years of OnStar which saw a $1200 base price increase added to the Corvette and other cars.
- May 14, 2011
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You would think with all the tech available, the on star button would simply give you a voice command, like an old space invasion movie "Take me to your leader" except it would be "Take me to your Dealer". In fact, if the voice sounded like Arnold Schwarzenegger, it would be perfect. (LOL)
- Aug 31, 2023
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Put the stock air filter back in….
- Oct 22, 2019
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I've had 1 since early 2021 no issues...
- Mar 14, 2023
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I know a few others that have the attack blue and there have no issues with a CEL
- Thread starter
- #18
That’s exactly what I did, and so far no codes after 350 kms. Do you think that was the issue?
- Oct 22, 2019
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I have not had the opportunity to interchange the 2 air filters. What are you observations between Stock vs Aftermarket...
- Aug 31, 2023
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Just figured it was worth a try even if a long shot. The after market one may have bothered the mass air sensor. Again, just a wild guess. At least no more problems so that’s enough to make you wonder. Happy it’s cleared the code for you ! You would need a very accurate dyno to measure any performance increase from after market air filtration so why bother?
