NHTSA Complaint #11626850 — 2019 GMC SIERRA 1500

My end of year 2019 produced GMC Sierra 1500 5.3 V8, 4WD X31 4 door truck had a serious malfunction that could have caused great harm. I was driving down my driveway at approximately 20 mph when the truck's rear wheels locked up, stopping the truck instantly, sending me into the steering wheel narrowly missing the windshield with my face. After a moment, I attempted to drive again to move the truck out of the travel path. When I did, the truck back wheels completely locked up again (when I reached 6mph). I had the truck towed to my local shop and was told that it was the transmission locking up making the wheels lock up. The part (transmission) that was ordered for repair was on national backorder and took over two months to get my truck repaired and functional again. I was fortunate to have a warranty (now expired) and pay a percentage of the repair fee, however, the total repair fee was near 12,000. This was paid for by myself and my warranty company. Considering the part was on national backorder, I know that these types of problems are occurring with many of these trucks. I learned of the recall for this same problem that my truck had and checked the recall for my vin. To my complete surprise, my truck was not listed as being recalled, even though the EXACT same problem occurred with my truck. I would like to get the cost of the repairs refunded considering it took GM so long to recall the problem leaving me to pay for their errors. This is not a cheap automobile and was expected to be built well. I am very fortunate that I was not on a major highway or traveling at a high rate of speed when this happened. It was a very scary ordeal being propelled into the windshield of your vehicle when driving due to abrupt, extremely unusual 100% mechanical failure of no fault of your own. This recall should be expanded to include ALL vehicles that have the faulty transmission, including mine. Repair receipts can be provided. I appreciate your time and consideration.