Don't know about the 2023 UForce 1000, but on the 2023 ZForce Gen2 the factory wire harness has two connections, one for backup lights and one for turn signals. But the rear lights only has bulbs and wires for one. So depending on which connection is made between the rear lights and the wire harness you get either backup lights or turn signals, but not both. There are two models of the 2023 Zforce Gen2, one for the US that doesn't have the turn signals wired up but instead has the backup lights, and one for the rest of the world including Canada which is wired for turns signals but not backup lights. If the same is true for the UForce and you have turn signals then it may not be possible to get backup lights without installing extra lights.