Being in principle an unarmed vehicle, the Renault UE was allowed to be employed by Vichy France. The type served in various conflicts involving the French colonies, used both by the government forces and the Free French. In May 1943, there was an attempt by the Free French to add the British Ordnance QF 6 pounder anti-tank gun, mounted on the rear of the vehicle with a gun shield. The relative size of the gun and the vehicle meant that it had to be operated from rear, as there was no room for the crew to operate it in the vehicle. After disappointing trial runs, the prototype was reverted to its original role as an artillery tractor. After D-Day some vehicles were used by the French irregular and regular forces in France. After the war some units for a few years still made use of the type. Some vehicles were taken into use by the army of Syria.