What would cause automatic transmission to pop out of gear?

An automatic transmission may pop out of gear due to several factors, including low Transmission Fluid levels, which can lead to insufficient hydraulic pressure. Worn or damaged internal components, such as clutches or bands, can also result in slipping out of gear. Additionally, a malfunctioning shift linkage or a failed transmission control module can disrupt the engagement of gears. Regular maintenance and addressing warning signs promptly can help prevent these issues.