Hot-wiring was the act of starting a vehicle by bypassing the conventional method.
When the living construct took over the USS Protostar in 2384, Zero was able to regain control of the ship’s systems by using a hardware reconfiguration to bypass the software blockage. They referred to their method of manually swapping out cables as “hot-wiring.” (PRO: "Supernova, Part 1")
In 2401, Captain Liam Shaw hot-wired the USS Titan-A's nacelles, which were nearly twenty years old, in order for the ship to escape a gravity well within a nebula (PIC: "No Win Scenario")