Bought a new 2023 gmc serra…
Bought a new 2023 gmc serra slt and it has been in the shop for six weeks. 10 speed transmission will shudder at about 50 miles per hour. They tell me it is the throttle body and injectors. Also Bought new 2022 gmc canyon with 8 speed transmission and on first start up would have to let off accelerator so it would go into second gear. Think I am done with gm products.