2021 Sierra 3.0L CEL ISSUE

Michael Hahn · 2025-02-26T00:40:42+0000

Took my sierra in to safelite for a new windshield. Got back in after they were done and CEL was on. Getting these codes U029D U029E U0076 U010E U02A1 U02A3 U18A2 Any ideas if they messed something up or what? Haven't had any other issues leading up to this.

By Michael Hahn
February 26, 2025 in Troubleshooting, Warranty & Recalls

https://www.gm-trucks.com/forums/topic/271179-2021-sierra-30l-cel-issue/

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