However, in 2021, those plans were dropped, and an order was placed with Carrosserie Hess for new, conventional (unguided) trolleybuses to replace the GLT vehicles.

The surface guidance system was removed in 2023–2024, with trolleybus service suspended from mid-March 2023 to permit that work and some revisions to the overhead wiring.

In March 1980, the city council voted to create a network of trolleybus routes, with a planned initial fleet of 48 articulated vehicles.

[9] Dual-mode buses were chosen to permit the vehicles to run a portion of each trip in diesel mode, on sections not equipped with overhead wires.

[10] The new system include some sections with steep gradients, the steepest being 13 per cent on Avenue Jean-Jaurès just south of St-André stop.

Earlier in 1998, plans were under consideration to convert the section between Essey and CHU Brabois, combining the southern half of route 4 (and also later 19) and the northern/eastern half of route 3, into a busway route using guided trolleybuses,[15] and these plans were confirmed at the end of November with the announcement that a contract had been signed with Bombardier Transportation for the supply of 25 trolleybuses equipped with its Guided Light Transit technology (TVR in French),[16] which uses a central guide rail just below the roadway surface.

The new service was forecast to begin at the end of 2000,[16] and compressed natural gas motorbuses were expected to be used temporarily during the conversion work.

[22] The GLT guided-trolleybus route was officially opened on 8 December 2000, but regular public service did not begin until 28 January 2001.

It was reported in 2011 that six of the seven had never been accepted by the transport company, because they were considered to be out of conformance with the specification, and in June 2010 a settlement was reached with the manufacturer, concluding a legal dispute that had lasted for several years.

[35] In 2017, the Nancy city council decided to close the trolleybus system by 2022 and to replace it with a conventional tramway.

[39] On 1 January 2019, Keolis became the operator of the local public transport system, having won the competitive tender, with a six-year contract.

[42] Largely because of the forecast high cost, the Metropolitan Council of Greater Nancy voted in February 2021 to postpone the plans to build a tramway and to consider alternatives for replacement of the vehicles serving the trolleybus line.

[43][42] On 26 August 2021, the council voted to replace the existing Bombardier guided vehicles with new conventional (unguided) trolleybuses.

[30] Years later, in late 2011 or 2012, all but one of them were sold to the Ancona trolleybus system, in Italy,[31] where they entered service in 2014.