Abstract
In today's fiercely competitive market, advertising plays a crucial role in shaping consumer behavior. To achieve this, it does not just rely on language but also uses creative visual elements to deliver messages and leave a lasting impact. Therefore, studying advertising discourse from a sociosemiotic perspective is essential for evaluating the effectiveness of incorporating visual elements into advertising discourse. The data for analysis was collected from 30 advertising posters featuring six Mitsubishi car models (Pajero, Xpander, Outlander, Triton, Xforce, and Attrage) sourced from the fan pages of various dealerships. Regarding communicative purpose, the research results indicate that the intended message of advertising discourse can be effectively communicated through the lines of meaning embedded in visual elements. First, to create various types of messages, the central figure (the car model) must perform different types of process and be presented in different states and circumstances. In addition, the advertising discourse is effectively organized, with central entities and key information predominantly highlighted and positioned centrally. Moreover, ideal information about the car model is typically presented in the upper section of the discourse, which can influence the readers' perception of the subsequent details and potentially shape their attitude. However, the interactive meaning has not been effectively conveyed by advertisment makers, as the visual fidelity of the car model is often low. Most of the images in the surveyed advertising discourse are heavily edited, which diminishes their authenticity. From a sociosemiotic perspective, car advertisements in Vietnam reflect cultural values by portraying cars as valuable assets through eye-level or low-angle shots and highlighting eco-friendly features. They also address practical concerns by showcasing the car’s ability to navigate diverse terrains, appealing to the needs and values of Vietnamese consumers.