Forum Discussion
Defective OnStar Module in 2022 GMC Sierra AT4X — Sold in Non-Working Condition
I’m reaching out because my 2022 GMC Sierra 1500 AT4X was sold to me with a non-functional OnStar telecommunications module. OnStar has never connected or worked properly since I purchased the vehicl...
Good luck with getting any assistance. Go through theI GM executive team. mary.barra@gm.com. That is the only way you will get help. I purchased a brand new 2025 with a defective Module. Took them 5 months to listen to me. Then they only listened because a GM executive contacted them. Had it replaced one week ago today. This morning it stopped working again. Just filled out the lemon law form.