[5] Full operation commenced on 18 September 2009[6] with diben for the consortium of PT Trans Semarang (from Perum DAMRI, PO Minas, and PO Ratakencana)[2] and the bus asset rental system between the Semarang City government and the consortium.

[7] In the history of its operation, there has been a change in operating hours (from 06.00 to from 21.00 WIB to 05.30 to 17.40 WIB), the tariff, and special student service hours are held, where the bus is specifically for students at the school level (both elementary, junior high, and high school).

Corridor 4 was first inaugurated on 2 December 2013, with the Cangkiran Terminal route to the airport and rounding at Karangayu.

This corridor serves the Tanjung Emas Port route to the Elizabeth end, which is divided into two (3A and 3B).

(Last fleet departure from the Pemuda City Hall stop: 18.30 WIB) The trial operation of the Trans Semarang has attracted attention due to the unpreparedness in the launch of the trial including the unpreparedness of supporting infrastructure (road markings, ticket vending machines, and installation of signs).

According to one student's observations at several points, people with disabilities complained that there was no road for wheelchairs so they had difficulty accessing them.

Since September 2021, Trans Semarang's Feeder 1 service has not been operated due to "technical problems".

Matra Semar, with BLU UPTD Trans Semarang ended with the termination of the contract on 30 September 2021.

[21] Information related to this emerged when PT Matra Semar filed a lawsuit to the Semarang District Court on 24 November 2021, after previously unsuccessful mediation efforts.