Suddenly no Onstar, no Google, no Alexa, no Speed Limit display and no connection with the GM App!
Onstar says take it to dealer.
Did so and dealer says it needs a part that has to be ordered AND GUESS WHAT? ITS ON BACKORDER. Paid a fortune for this vehicle and now it's reverted back to an SLT or worse.
I have same issue. 2023 Yukon XL Denali Ultimate. Been down for a month already. OnStar F Module crapped out.
"The **F Module GM 86803986** is a part of the **Onstar** system in the **2023 GMC Sierra 1500**¹. It is a communication interface that is used to connect the vehicle to the Onstar network. The F module is responsible for providing the vehicle with a variety of services, including emergency assistance, remote diagnostics, and turn-by-turn navigation¹. The F module also includes the **Super Cruise** feature, which is an advanced driver assistance system that allows for hands-free driving on compatible highways¹
On BACK ORDER (special order only). Dealers must order through "Model Electronics" and currently there is -ZERO- visibility on when units are to be available. My dealer says many orders "ahead" of me... Part is apparently "VIN specific" so requires sourcing from GM.
Not a happy camper!
Warranty is only as good as parts availability!!! OMG
Update:
Model Electronics no longer services/supplies module. Specmo Enterprises now acts as supplier for dealerships seeking this module. Back-order still exists and expected to remain through "late March"