Vehicular travel in mountainous terrains is frequently interrupted by landslides, rock falls, and other obstructions, posing significant challenges due to limited visibility and lack of communication infrastructure. This paper presents a vehicular assistance communication system employing a multi-hop Vehicle-to-Everything (V2X) approach. The proposed system enables vehicles to relay information through a network of neighboring vehicles and Road Side Units (RSUs) to communicate data on road blockages effectively. Simulations were conducted using Veins, OMNeT++ , and SUMO to assess communication range, throughput, coverage, and delay, demonstrating improved communication and alert effectiveness. The results demonstrate that the V2V+ RSU communication technique significantly outperforms both V2V multi-hop and classical techniques in terms of average packet delay, message delivery, throughput, and coverage range, making it the most efficient method for high-density vehicular networks.