2021 Tahoe CEL (P00ff and U1962)

[kjohns339]

Hi all, new to the forum.

I have a 2021 Tahoe LT 5.3 and my CEL came on recently. Pulled the codes and I’m getting P00FF and U1962. Truck runs and drives fine.

I’ve read these may be related to OnStar/telematics rather than a drivability issue. I also noticed intermittent in vehicle Wi-Fi issues a few weeks ago.

Has anyone experienced this, know how to troubleshoot, or the likely fix? Appreciate any insight.

[asilverblazer]

How long has this been occurring?

 

Has the trucks software been updated (recently)?

[GMCustomerService]

Our team doesn't wish for you to continue to endure these challenges with your engine light and Wi-Fi. At your earliest convenience, please send us an email at [email protected] with your Username and Forums in the subject line so we can help rectify this matter alongside your servicing dealer as quickly and efficiently as possible.