This 8.1 km (5.0 mi) expressway links Kuala Lumpur in the north to Seremban, Negeri Sembilan in the south.

[1] The construction of the 63.4 km (39.3 mi) controlled-access expressway from Kuala Lumpur to Seremban began on 27 March 1974 as one of the Second Malaysia Plan (RMK-2) project, with the total cost of RM32.9 million.

[2] It consists of 14 interchanges, 2 laybys and 6 toll plaza (Sungai Besi, UPM, Kajang, Bangi, Nilai and Seremban).

[4] The Minister of Works at that time, Datuk Seri S. Samy Vellu himself became the first motorist to pay the toll of the expressway.

Today, the name Kuala Lumpur–Seremban Expressway is only applied to the remaining stretch (from Razak Mansion to Sungai Besi toll plaza) managed by ANIH Berhad after PLUS Malaysia Berhad acquired the southern stretch from Sungai Besi toll plaza onwards on 1988 and the Seremban Layby was transformed into a major Rest and Service Area.