All carriages have installed red LED scrolling displays to show the next station.

Five-color indicators are removed and all carriages have installed yellow LED scrolling displays to show the next station.

[6] In the summer of 2006, after poor cooling affected 16 DC01s, high temperatures inside the carriages had long been a problem, 96 ice cubes have been put into a one-meter-high container to alleviate the high temperature of the 96 carriages.

In order to make up for the defects in the refrigeration power and design of carriage, emergency measures must be taken whenever the temperature reaches 33 °C (91 °F) or more.

After replacing car 92113 and changing of the traction systems and motors, set 102 renamed separately as DC01A and backed to service in September 2007.

Between 2008 and 2009, a contract for DC01 from Shentong Metro includes a third batch of 30 cars to expand the remaining sets, 111-113, 115 and 116.

In 2007, it was stripped for removing parts, stored in the maintenance shop of Meilong Depot and replaced by the new carriage built by CSR Zhuzhou Locomotive.

[12] After the second general overhaul for 01A01 trains, numerous structural failures and frame cracks found in these carriages in 2016.

By middle 2020, 01A01s' usages were gradually minimized, becoming a reserve fleet – rarely run regular service outside of peak hours.

[25][26] From 24 May 2024, the Shentong Metro launched a program to renovate 8 cars' (92131-92181, 94022 and 94033) electrical equipments.

[27] By 2021, 01A02s were reassigned as a reserve fleet, as their original cars were aging and considered unreliable.

[28] Several proposals for the disposal of 01A02s were put forward in 2023:[29] Shentong Metro chose to refurbish all 01A02s for financial consideration.

Renovation includes structural repairs, extend their lifespans for an additional 14 years.