In the 1990s, the 2400-series cars were used on the Red Line in mixed consists with unrehabbed 2600-series cars. While the 2600-series cars were being rebuilt, the 2400-series cars were used temporary on the Red Line. The 2400-series cars were retired from service on October 31, 2014, with the Orange Line being the last line to operate them. The ceremonial last trip of the 2400-series cars was held on January 21, 2015. Cars 2433-2434 are preserved at the Illinois Railway Museum in Union, Illinois and the cars used for the ceremonial last trip have been preserved as part of CTA's historic fleet.