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2021 5.3 blinking engine light!!?

Hellride

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I have a 2021 5.3 LT build date is 5/21. I put 1300 mile on er. Check engine light blinked on and of for about a mile and hasn't come back on was wondering if anyone else has had this problem or knows what's up with that. I'm aware of the defect pushrods and possible engine problem but love the truck and Chevy. Keep on keeping on!!
 

jonathanv

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I also have a 2021 5.3 LT. I've had mine since November, with 6,000 miles on. This same problem happened to me twice, I took it in last Wednesday and they fixed it. They told me it was indicating that the engine was misfiring. Then they told me there was a problem with the software and they had to update it. After a day of driving the check engine light turned on again but this time stayed on. The Chevrolet app says there is a problem in the exhaust emission system. It's back in the shop again.
 
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