The GM bulletin N19227110 indicates that they are aware of over 10% of Chevrolet Spark models from the years 2014-2015 experiencing transmission problems. Although this bulletin expired last year, it is important to note that they do not provide coverage for vehicles purchased used with fewer than 120,000 miles. This situation poses a significant danger, as the transmission may potentially be contaminated with dirt and debris, leading to unexpected jerking or complete failure, and in some cases, vehicles have caught fire. Furthermore, unless the vehicle is taken to a GM service center, the issue may remain undetected. According to my research, this problem is similar to the one that Nissan faced with their CVT transmissions, which were subject to a recall for the same reason.